EP3817972A1

EP3817972A1 - Control system for a hybrid bicycle, and hybrid bicycle equipped with such a control system

Info

Publication number: EP3817972A1
Application number: EP19735570.4A
Authority: EP
Inventors: Mathieu RAUZIER
Original assignee: Rayvolt Inc
Current assignee: Rayvolt Inc
Priority date: 2018-07-05
Filing date: 2019-07-05
Publication date: 2021-05-12
Also published as: WO2020008027A1

Abstract

The invention relates to a control system (100) for a hybrid bicycle (101) comprising at least one data processing unit (106, 106'), said processing unit (106) being configured so as to control (203; 204) said motor (105) on the basis of an analysis, with a time interval less than or equal to one millisecond, of each topographical variation (a) so as to deliver an instantaneous control signal (203; 204) for said motor (105), which may be a signal to adaptively and gradually increase the power (203) delivered by said motor (105) of said hybrid bicycle (101), in order to boost the assistance provided to the user during pedalling when said topographical variation (a) is representative of an incline, or a braking control signal (403) when said topographical variation (a) is representative of a descent (202). Said processing unit (106, 106') also takes into account at least one item of information representative of the weight of the cyclist using said bicycle in order to adapt said instantaneous control signal.

Description

CONTROL SYSTEM FOR A HYBRID BICYCLE, AND HYBRID BICYCLE PROVIDED WITH SUCH A CONTROL SYSTEM

1. Field of the invention

The present invention relates to the field of hybrid bicycles, and in particular a system for controlling the engine of such a hybrid bicycle.

2. Prior art and its drawbacks

As is now well known to those skilled in the art, a hybrid bicycle is a pedal bicycle further provided with an auxiliary motor, typically an electric motor, which can be operated by the user or automatically to assist and assist the user. user when pedaling. The provision of such pedaling assistance results in greater comfort in use, including for people with more limited physical capacities, but also in the possibility of traveling more easily and more comfortably on a physical level, much longer distances, on routes with an accentuated topography if necessary, such as in the mountains.

According to the prior art known in the field of the invention, in addition to the electric motor, a hybrid bicycle typically comprises an electronic control unit connected to the electric motor, also known under the name data processing unit. Such a control unit serves as an interface for the user of the bicycle to configure the desired level of pedaling assistance. It is most often in the form of a control interface mounted on the handlebars of the bicycle. Thus, the user can manually define the level of assistance desired by the motor, in the form of a percentage of pedaling assistance from which he wishes to benefit, according to a predefined graduation.

Hybrid bicycles as known today, however, have the disadvantage of only being controlled according to predefined settings, necessarily stopped, by the manufacturer or the user. However, depending on the route taken by the latter, the level of pedaling assistance may need to be modified, as well as certain other parameters likely to contribute to the comfort of use during the pedaling and / or movement phases.

Among some advanced models of hybrid bicycles known from the prior art, the control interface is in the form of an application executed on a terminal offering the user an ergonomic control interface that can be manipulated while riding.

Unfortunately, this has the disadvantage that the user is forced to concentrate on handling this control application while driving, to the detriment of his safety, or even in breach of the highway code. While he is handling his command application, he is no longer focused on the road and risks an accident. To mitigate such a risk, the user is therefore obliged to stop to modify the pedaling assistance parameters, which reduces the comfort of use. In addition, the hybrid bicycle control systems according to the prior art have the additional disadvantage of only making it possible to influence the level of engine power and therefore the level of pedaling assistance, but not on other parameters. of the hybrid bicycle.

3. Objectives of the invention

The present invention aims to design and provide a system for controlling a hybrid bicycle capable of at least partially overcoming the drawbacks indicated above with reference to the known prior art.

It is in particular an objective of the invention to propose a control system offering a new user experience, favoring efficiency, quality, comfort and / or safety of use for the user.

SUBSTITUTE SHEET (RULE 26) 4. Statement of the invention

4.1 main features of the invention

According to a first aspect, the invention relates to a control system for a hybrid bicycle comprising at least one rechargeable battery and an electric motor, said system comprising at least one data processing unit. According to this aspect, the system further comprises a volatile memory and at least one sensor connected to said volatile memory connected via said data processing unit 106 for measuring and storing in real time instantaneous topographic variations of the displacement surface of said hybrid bicycle during pedaling, said processing unit being configured to automatically control said motor on the basis of an analysis at time interval less than or equal to one millisecond of each variation a of topography to deliver an instantaneous control signal of said motor, said instantaneous control signal being:

a signal for increasing the power delivered by said motor in an adaptive and progressive manner from said hybrid bicycle, in order to increase the assistance provided to the user during pedaling when said topographical variation is representative of a rise relative to the direction displacement, and

an adaptive and progressive braking control signal creating a magnetic resistance intended to slow down or stop said hybrid bicycle, when said topographical variation is representative of a descent relative to the direction of movement.

According to this aspect of the invention, said processing unit also takes account of at least one item of information representative of the weight of the cyclist using said bicycle to adapt said instantaneous control signal.

Thus, assistance takes into account two essential characteristics for comfort and safety, namely the slope and the weight of the user. If the bicycle is on a climb, the assistance is increased. If the bicycle is on a descent, assistance is reduced, and the engine can act by ensuring "engine" braking (also allowing the battery to be recharged). For this assistance to be effective and comfortable, the adaptation of the assistance is immediate or almost immediate, and updated if necessary 1000 times per second or more. In addition, assistance takes into account an essential aspect, namely the weight of the cyclist, or user. Indeed, the weight of the cyclist can vary over a range of the order of 20 to 120 kg, while the weight of the bicycle is of the order of 20 to 25 kg. The weight of the cyclist is therefore an essential element in determining the behavior of the bicycle and the assistance required, both uphill and downhill.

According to a particular characteristic, said instantaneous control signal can be in the form of an electric current intensity value.

The hybrid bicycle can also be equipped with a set of hydraulic brakes with an electronic brake switch connected to at least two brake levers, and said brake control signal is adaptive and progressive and takes account of the actuation of at at least one of said brake levers to optimize the braking required.

Braking is thus optimized: assistance can make action on the levers more efficient and adapt the braking power to obtain the desired braking.

In this case, the electric current value of said instantaneous braking control signal can be included in a range of amperage values from 5 to 50 amperes.

The instantaneous brake control signal can take account of at least one previous value of electric current corresponding to at least one other brake control signal already applied to said hybrid bicycle at least one previous time interval, so as to generate a signal

SUBSTITUTE SHEET (RULE 26) adaptive and progressive brake control.

For example :

If said topographic variation is 0 degrees, said instantaneous braking control signal is translated into an electric intensity value of 10A;

If said topographic variation a is between 0 and -6 degrees, said instantaneous braking control signal is translated into an electrical intensity value of 20A;

If said topographic variation a is between -6 and -12 degrees, said instantaneous braking control signal is translated into an electrical intensity value of 30A.

Said power increase control signal can also take account of at least one previous electric current value corresponding to at least one other braking or acceleration control signal already applied to said hybrid bicycle to at least one previous time interval, so as to produce a control signal for increasing the power of said adaptive and progressive motor.

The processing unit can also take into account at least one physical data item representative of said user calculated and / or previously fixed, to produce said instantaneous control signal, said form data item belonging to the group comprising:

pedaling muscle power;

a parameter representative of physical fitness;

V02 max;

the power of pressing on the pedal.

The processing unit can take into account at least one physical datum representative of said rolling surface of said hybrid bicycle, said physical datum belonging to the group comprising in particular:

the nature of the displacement surface;

the resistance of the displacement surface;

the dry or wet nature of the moving surface.

The nature of the displacement surface can include at least two of the categories belonging to the group comprising the states corresponding to:

bumpy road;

flat road;

gravel;

grass;

mud.

The dry or wet nature can comprise at least two of the categories belonging to the group comprising the states corresponding to:

dry soil;

wet floor;

snowy ground;

icy ground.

The processing unit can take into account at least one physical datum representative of the current situation of said bicycle, said physical datum belonging to the group comprising: the position of the handlebars of the bicycle relative to the frame;

the inclination of the bicycle relative to its travel surface,

the position of the cyclist on the bicycle.

According to a particular aspect of the invention, the processing unit can also determine a situation

SUBSTITUTE SHEET (RULE 26) common bicycle, among at least two of the situations belonging to the group comprising: a normal traffic situation,

an emergency situation, corresponding to a variation in speed, acceleration, direction, slope and / or inclination greater than predetermined thresholds,

a curve or turn situation, corresponding to a change in direction, inclination and / or position of the handlebars of said bicycle,

a situation of abrupt variation in slope, corresponding to a variation in the slope greater than a second predetermined threshold,

a pre-emergency situation, corresponding to a variation of information representative of the pedaling / coaster pedaling rate greater than a predetermined threshold,

said control signal being adapted according to the detected situation.

Indeed, it may be important not to provide the same assistance, when the current situation is not the usual or normal situation. For example, when cornering, it may be desirable not to provide the same braking or acceleration as in normal conditions.

The processing unit can, according to at least one embodiment, analyze the measurement signal (s) delivered by the said sensor (s), to determine an estimate of the speed and the slope, as well as an estimate of at least one of the pieces of information belonging to the group including:

the weight of the cyclist,

the position of the cyclist on the bicycle,

the nature of the displacement surface,

the resistance of the displacement surface,

the dry or wet nature of the traveling surface,

the position of the handlebars of the bicycle relative to the frame,

the incline of the bicycle.

For example, the measurement signals delivered by accelerometers and / or gyroscope can allow, by specific processing such as mathematical transformations (FFT for example), filtering, analysis in different situations (at stop or at start-up for example, for determining the weight), comparisons, correlations ... to determine information representative of these characteristics, which allow the assistance to be adapted.

The system can also include information input means, in the form of buttons and / or a touch screen making it possible to supply said processing unit with at least information relating to the cyclist and / or to the conditions of use. from the bicycle.

This information is also taken into account to optimize assistance.

The system according to this aspect of the invention may further comprise a crank pedal and at least one rotary sensor fixed on a crank wheel of said pedal and connected to said processing unit, said sensor being able to generate at least one cadence value pedaling / coaster pedal transmitted to the data processing unit to automatically control said hybrid bicycle by automatically adapting the power of said electric motor from said at least one pedaling / coaster pedaling value.

According to another aspect, the invention also relates to a control system for a hybrid bicycle comprising at least one crank pedal, a rechargeable battery and an electric motor which can be actuated to assist a user in pedaling, said system comprising at least a data processing unit.

According to this aspect, the system further comprises at least one rotary sensor fixed on a crank wheel of said crankset and connected to said processing unit, said sensor being able to generate at

SUBSTITUTE SHEET (RULE 26) at least one pedaling / coaster pedaling value transmitted to said data processing unit for automatically controlling said hybrid bicycle by automatically adapting the power of said electric motor from said at least one pedaling / coaster pedaling value.

In this case, the processing unit can take account of information representative of the weight of the cyclist using said bicycle to adapt the power delivered by said engine.

It should be noted that the system may be able to generate from said pedaling / coaster pedaling value a power control signal transmitted to said said electric motor, said control signal being in the form of a value of intensity of electric current.

The control signal can also be proportional to an instantaneous power value generated by said electric motor measured continuously during pedaling / coaster pedaling by said processing unit from said pedaling / coaster pedaling rate information received from said rotary sensor.

The rotary sensor may include at least two readers fixed to a fixed part of the frame of said hybrid bicycle and at least twelve magnets fixed equidistant from each other on said crank wheel of said crankset, said magnets being capable of generating at least twenty four pulse signals per revolution of said crank wheel, said pulse signals being transmitted continuously during pedaling / coaster pedaling to said processing unit by said at least two readers, said processing unit measuring variations in pedaling cadence / back pedaling from said received pulse signals and continuously producing a plurality of control signals of said hybrid bicycle adapted to said measured pedaling / back pedaling cadence variations.

This provides precise measurement, allowing comfortable and smooth assistance.

According to a particular aspect of an embodiment of the system, when said processing unit measures an increase / decrease in pedaling / coaster pedaling frequency, it automatically transmits to said electric motor a signal for controlling the increase / decrease in power proportional to said increase / decrease in pedaling / coaster pedaling rate measured.

For its part, the rotary sensor may be able to detect variations in the coaster rate of said crank wheel, to transmit them continuously to said processing unit to continuously produce a plurality of brake control signals of said adapted hybrid bicycle. to said variations in coaster rate.

According to a characteristic of at least one embodiment of the system, said coaster variations increase / decrease, the more the intensity of the engine braking increases / decreases.

According to a particular implementation:

if said processing unit receives from said two readers six negative pulse signals representative of an average coaster pedaling rate, said brake control signal is translated into an electric intensity value of 10A transmitted to said electric motor;

if said processing unit receives from said two readers twelve negative pulse signals representative of a strong rate of coaster pedaling, said brake control signal is translated into an electric intensity value of 20A transmitted to said electric motor;

if said processing unit receives from said two readers twelve negative pulse signals representative of an intermediate coaster pedaling rate, said brake control signal is translated into an electric intensity value transmitted to said electric motor, according to a Gauss curve.

The invention also relates, according to another aspect, to a control system for a hybrid bicycle,

SUBSTITUTE SHEET (RULE 26) comprising at least one crankset crankset, an electric motor, a rechargeable battery supplying said motor and a data processing unit controlling said motor so as to provide pedaling assistance when said crankset is actuated in a pedaling direction and braking and recharging the battery when said pedal unit is actuated in a coaster direction, said processing unit determines a current situation among at least two distinct types of situation, a normal traffic situation and an emergency situation, corresponding to a greater variation at a predetermined threshold within a predetermined period of time of said current speed information and / or of said direction change information. The assistance decisions transmitted to said engine by said processing unit ensuring reactive behavior and corresponding to the expectations of the user in said normal situation, and allowing a slowdown or a safe stop, in said emergency situation.

According to at least one particular embodiment of this aspect, pedaling assistance and braking assistance are determined by said processing unit at least 1000 times per second, so as to provide immediate or almost immediate decisions, and taking into account at least two of the following information:

information representative of the current speed of said bicycle;

information representative of the weight of the cyclist;

information representative of the slope;

information representative of the pedaling / coaster pedaling rate;

information representative of a surface condition on which said bicycle circulates;

direction information / change of direction.

According to a characteristic of at least one embodiment, the processing unit and at least some of said sensors can be grouped in a removable device of the smart phone or tablet type, implementing a dedicated application.

The invention also relates to an electrically assisted bicycle equipped with a control system according to one of the abovementioned embodiments.

The invention also relates to a method for controlling a hybrid bicycle comprising at least one rechargeable battery and an electric motor, said system comprising at least one data processing unit, comprising the following steps:

real-time measurement of instantaneous topographic variations in the displacement surface of said hybrid bicycle during pedaling,

obtaining at least information representative of the weight of the cyclist,

control of said motor on the basis of an analysis at a time interval less than or equal to a millisecond of each variation a of topography to deliver an instantaneous control signal of said motor, taking account of said information representative of the weight of the cyclist

said instantaneous control signal can be:

an adaptive and progressive braking control signal creating a magnetic resistance intended to slow down or stop said hybrid bicycle 101, when said topographic variation is representative of a descent relative to the direction of movement.

The invention finally relates to a computer program product intended to be executed on a mobile terminal capable of controlling a hybrid bicycle, said mobile terminal having at least one

SUBSTITUTE SHEET (RULE 26) touch interface and a microprocessor, characterized in that it implements the method for controlling a hybrid bicycle mentioned above.

4.2 characteristics relating to the taking into account of the pedaling / coaster pedaling speed According to this aspect of the invention, such a control system according to the invention further comprises at least one rotary sensor fixed to the crank wheel of said crankset and connected to said processing unit, said sensor being able to generate at least one pedaling / coaster pedaling value transmitted to said data processing unit for automatically controlling said hybrid bicycle by automatically adapting the power of said electric motor from said to minus a pedaling / back pedaling cadence value.

By definition, the term “automatically controlling the hybrid bicycle” means automatically influencing the level of servo / assistance provided by the electric motor to the user in the pedaling phases or else the automatic braking assistance of said bicycle in coaster phases.

Thus, a control system for a hybrid bicycle according to this aspect makes it possible to provide greater comfort of use and to offer a higher level of security to its user.

Indeed, during the phases of pedaling or coaster pedaling of the user on his hybrid bicycle, the rotary sensor transmits continuously to the processing unit, the cadence of pedaling or coaster pedaling measured at the crank wheel of the crankset also known as the large crankset - mobile part of the crankset connected to the frame and on which the crank arms receiving the pedals are fixed.

Thanks to this control system, a measurement of positive variation in pedaling cadence by the processing unit, that is to say an increase in the pedaling cadence of the user of the hybrid bicycle, will be automatically translated and transparently for the user by a greater need for pedaling assistance. Thus, the more the user increases his pedaling rate, the more the processing unit will transmit a signal of increase in power to the electric motor which will thus increase the pedaling assistance provided to the user in a progressive manner, for the benefit of greater user comfort and more safety.

In addition and in a new and particularly advantageous manner from a technical point of view, the rotary sensor is also able to detect any coaster movement of the user, as well as any variations in coaster rate.

Such a control system for a hybrid bicycle is particularly new and advantageous, providing greater security and greater comfort in use.

In fact, the control system according to the invention will translate during use and during the movement of the bicycle any coaster movement as representative of a command from the user aimed at braking said bicycle.

It will also translate any increase in the user's back pedaling rate as an accentuated braking command. Thus, the more the user increases his coaster pedaling rate, the more the control system will progressively brake the speed of movement of the hybrid bicycle on which it is installed, for the benefit of more safety.

Such a new braking system based on the user's back pedaling cadence while traveling on his hybrid bicycle generates reverse braking, in the sense that instead of providing engine thrust, the engine will brake by recharging the battery. . The braking force is therefore linked to the rate of coaster.

Conversely, the more the control system detects an increase in the user's pedaling rate, the more the control system will increase automatically and gradually.

SUBSTITUTE SHEET (RULE 26) for the user, pedaling assistance by transmitting a signal to increase the servo power to the electric motor.

Thanks to the control system according to the invention, the user of such a hybrid bicycle will experience a completely new experience of use, for the benefit of more comfort, safety and pleasure of use.

In a particularly advantageous embodiment, said processing unit is able to generate from said pedaling / coaster pedaling value a power control signal transmitted to said said electric motor, said control signal being in the form of an electric current intensity value.

Thus, the higher the pedaling rate measured by said processing unit, the more the motor control signal will be translated into an electric intensity value intended to increase the level of the power delivered by the electric motor and therefore the level of pedaling assistance.

Conversely, the higher the coaster pedaling rate measured by the processing unit from the data received from the rotary sensor, the more the control signal transmitted to the electric motor will be translated into an electrical regenerative braking control signal. Such regenerative braking offers a double technical advantage on the one hand that the electric motor of the bicycle can also serve as a braking system, which can be supplemented by a second braking. It also makes it possible to electrically recharge the battery during the braking phases, by recovering the kinetic energy of braking.

It is also possible in a variant of the control system according to the invention to equip the hybrid bicycle with a set of hydraulic brakes with an electronic switch on the brake levers, such an assembly being capable of generating an additional braking signal once interpreted by the processing unit.

When the brake signal is detected, the control unit calculates the exact inverse of the use of the accelerator by creating a magnetic resistance generating energy using the kinetic energy of the bicycle at high speed.

Said control signal can be proportional to an instantaneous power value generated by said electric motor measured continuously during pedaling / coaster pedaling by said processing unit.

Thus, the control signal supplied to the electric motor to increase pedaling assistance or to generate the braking of the hybrid bicycle will be perfectly progressive and continuous, smoothly, to the benefit of a great deal of comfort and safety in use.

In a particularly advantageous embodiment of the control system according to the invention, said rotary sensor comprises at least two readers fixed to a fixed part of the frame of said hybrid bicycle and at least twelve magnets fixed equidistant from each other on said wheel with cranks, said magnets being capable of generating at least twenty-four pulse signals per revolution of said crank wheel, said pulse signals being transmitted continuously during pedaling / coaster pedaling to said processing unit by said at least two drives, said processing unit measuring variations in pedaling / coaster pedaling rate from said received pulse signals and continuously producing a plurality of control signals from said hybrid bicycle adapted to said variations in pedaling / coaster pedaling rate measured by said rotary sensor and processed by said processing unit.

Thus, if in one second, the processing unit measures six negative pulses (1/4 of a turn behind the cranks during the coaster pedal of the user) transmitted by the two readers of said rotary sensor, then the unit treatment will detect a light brake request and transmit a

SUBSTITUTE SHEET (RULE 26) value of electric intensity of regeneration to said electric motor of intensity ten amps 10A.

If, in addition, in one second, the processing unit measures twelve negative pulses (1/2 of a turn behind the cranks during the coaster pedal of the user) transmitted by the two readers of said rotary sensor, then the unit treatment will detect a more pronounced braking request and transmit a value of electric regeneration intensity to said electric motor of intensity 20 amps 20A.

The parameters can be adjusted to read the pedaling or coaster pedaling cycles every 0.3 seconds.

In a particularly advantageous manner, when said processing unit measures an increase / decrease in pedaling / coaster pedaling frequency, it automatically transmits to said electric motor a control signal for increase / decrease in power proportional to said increase / decrease in pedaling frequency. / measured coaster. In a preferred embodiment, said rotary sensor is capable of detecting variations in the coaster rate of said crank wheel, in order to transmit them continuously to said processing unit to continuously produce a plurality of brake control signals of said bicycle hybrid adapted to said variations in coaster cadence.

Preferably, the more the said coaster variations increase / decrease, the more the motor braking intensity increases / decreases.

Using an on-board computer or terminal (“smartphone”, tablet, etc.), using, for example, the Android OS (registered trademark) forming and / or connected to the processing unit of the control system according to the invention, by Bluetooth connection (registered trademark) for example, the user can change all the motor parameters from the maximum speed, the output power, the pedal assistance ratio and even the amount of regenerative braking.

In an advantageous embodiment of the control system according to this aspect of the invention: if said processing unit receives from said two readers six negative pulse signals representative of an average coaster pedaling rate, said brake control signal is translated in an electric intensity value of 10A transmitted to said electric motor;

if said processing unit receives from said two readers twelve negative pulse signals representative of a coaster pedaling rate, said brake control signal is translated into an electric intensity value transmitted to said electric motor, according to a Gauss curve.

The hybrid bicycle is indeed equipped with at least one rotary sensor on the crank wheel of the crankset (pedal assistance sensor). The sensor is equipped with two readers and at least twelve magnets which generate twenty-four pulse signals at each turn of the crank wheel (pedal rotation 360 degrees).

These pulse signals are used to calculate the pedaling cadence in order to give the output power proportional to the motor: slow pedaling / back pedaling will result in a low power for pedaling / braking assistance. Fast pedaling / coastering will result in more power assisting in pedaling or braking by the electric motor.

If users pedal backward, instead of providing engine thrust, the engine will brake by recharging the battery.

In the coaster phases of the user, the braking force is therefore linked to the cadence of the coaster.

SUBSTITUTE SHEET (RULE 26) The invention also relates to an electrically assisted bicycle equipped with a control system as described above.

The invention also relates to a method for controlling a hybrid bicycle comprising at least one crankset crankset, at least one rechargeable battery and an electric motor which can be actuated to assist a user in pedaling, and at least one data processing unit .

Such a method according to the invention notably comprises the following steps of:

continuously measuring by means of at least one rotary sensor fixed to the crank wheel of said crankset and connected to said processing unit, at least one pedaling / back pedaling cadence value transmitted to said data processing unit by said rotary sensor ;

controlling said hybrid bicycle by automatically adapting the power of said electric motor from said at least one pedaling / back pedaling cadence value measured by said processing unit.

The invention also relates, in a particularly advantageous manner, to a computer program product intended to be executed on a mobile terminal capable of controlling a hybrid bicycle, said mobile terminal having at least one interface and a microprocessor, said program product computer implementing a method for controlling a hybrid bicycle as described above.

4.3 characteristics relating to taking the slope into account

Another aspect of the invention relates to such a control system further comprises a volatile memory, the sensor being connected to said volatile memory via said data processing unit for measuring and storing in real time instantaneous topographic variations of the surface. for moving said hybrid bicycle during pedaling, said processing unit being configured to automatically control said hybrid bicycle on the basis of a comparison of said topographic variations measured and stored in said volatile memory, with at least one reference topographic value.

By definition, the term “automatically controlling the hybrid bicycle” means automatically influencing the level of servo / assistance provided by the electric motor to the user during the pedaling phases, or else the automatic braking assistance of said bicycle. .

Such an invention thus allows the user of the hybrid bicycle to benefit from increased comfort and more safety while riding. Indeed, the system according to the invention makes it possible to automatically and gradually control - therefore with maximum safety for the user - the behavior of the hybrid bicycle, while riding and according to the topography of the route taken.

For example, when the system detects while riding that the hybrid bicycle is on a climb (a> 0) relative to its direction of travel, it will automatically increase the pedaling assistance, in a perfectly adaptive manner, without necessary user action.

Similarly, when the system according to the invention detects while riding that the hybrid bicycle is on a descent (a <0) relative to its direction of movement, it will automatically control progressive and adaptive braking according to the value a of the descent, in a perfectly adaptive way, and always without necessary action of the user.

Advantageously, said at least one sensor is of the type belonging to the list comprising: a gyroscope;

an accelerometer,

and adapted to detect and measure in real time any topographical variations in the displacement surface of said hybrid bicycle during pedaling, with respect to the direction of displacement of

SUBSTITUTE SHEET (RULE 26) said hybrid bicycle.

In one embodiment of the invention, use is made of the gyroscope and / or the accelerometer controlled by an Android operating system (registered trademark) executed on a mobile terminal of smartphone type, said gyroscope and / or accelerometer being on board. inside said smartphone.

The integrated accelerometer and gyroscope will continuously read the different inclination changes a to automatically detect the rise or fall of the travel surface, to progressively and adaptively control the servo of the motor or automatic and progressive braking of the hybrid bicycle according to the different topographical variations encountered during the journey.

Said data processing unit can be adapted to translate at a lower regular time interval, for example every one millisecond, each variation in topography stored in said volatile memory into an instantaneous control signal from said hybrid bicycle, said instantaneous control signal in the form of an electric current intensity value transmitted to said electric motor.

In order to be able to modify the acceleration or braking behavior of said bicycle in real time, the volatile memory (RAM) makes it possible to store the topographic variations while driving, then the processing unit to generate different control signals by emulating a change of setting in real time, either of the power of the electric motor to produce an acceleration in climb by increase of power of the electric motor, or to act on the motor brake by signal of rupture and recovery of energy, to control a braking progressive and adaptive in case of detection of a descent while driving.

The control system updates and calculates the electric charges from each topographic variation data stored in the volatile memory, every milliseconds (1000 times per second).

The on-board computer, for example of the “smartphone” type, is connected to the control controller, that is to say to the data processing unit. It is capable of producing the regeneration parameters in real time necessary for progressive and automatic braking of the hybrid bicycle while riding.

This allows for an application-based algorithm that can be updated constantly offering new functionality all the time.

In a particular embodiment of the invention, said hybrid bicycle is equipped with a set of hydraulic brakes with an electronic brake switch connected to at least two brake levers. Thus, the instantaneous control signal generated is an adaptive and progressive braking control signal transmitted by said processing unit to said electronic switch to create a magnetic resistance intended to slow down or stop said hybrid bicycle, when said topographical variation is representative of a descent from the direction of travel.

This embodiment is advantageous in that it makes it possible to transform the kinetic energy produced while driving into an electrical signal for controlling a hydraulic braking system much more efficient and more comfortable for the user, while recovering in part. this kinetic energy to reinject it in the form of electrical energy into the battery. Such a hydraulic braking system with electric switch offers the advantage of being able to be directly controlled, in a perfectly adaptive, progressive and automatic manner, by the processing unit of the system. For even more smoothness, the brake control signal can be generated according to a predefined braking value scale as a function of predefined values of variations in topography (positive angle value (a> 0) representative of climbs or negative (a <0) representative of descents

SUBSTITUTE SHEET (RULE 26) relative to the direction of travel.

This control signal can also be generated according to a portion of the Gauss curve, or according to any other braking curve associating such braking values with values of topographical variations, for even more progressiveness in the braking commands of the hybrid bicycle. , to the benefit of even more comfort of use for the user.

In a particular embodiment, the value of electric current of said instantaneous braking command signal is included in a range of amperage values from 5 to 50 amperes.

The control system is therefore highly configurable.

By using an on-board computer connected to the processing unit via Bluetooth, the user can configure any motor parameters as desired, for example and without limitation, the maximum speed, the power output, the ratio of pedal assistance and even the amount of regenerative braking.

Breakage by regeneration of the braking system is similar to the KERS formula (kinetic energy recovery system). Thus, when a brake control signal is detected, the processing unit calculates the exact inverse of the use of the accelerator by creating a magnetic resistance generating energy using the kinetic energy of the bicycle at high speed.

The processing unit can automatically and gradually and adaptively configure the choice of the amount of resistance as a function of a predetermined amount of energy to be recovered to transform it into electrical energy which will be stored in the battery, for the benefit of greater autonomy.

The lowest setting can be 5 Amps which recover little energy (5A) and provide light braking.

The Max setting can be set to 50A, which allows you to recover an energy of 50 Amps (10 times more than the AC / DC charger supplied with the bike). The friction required to recover 50A is so great that it will provide a very strong break by stopping the bicycle very quickly, while recovering a maximum of kinetic energy transformed into a maximum of electrical energy returning to the battery.

According to a particular embodiment, said instantaneous braking control signal takes account of at least one previous electrical intensity value corresponding to at least one other braking control signal already applied to said hybrid bicycle at at least one interval of previous time, so as to produce an adaptive and progressive brake control signal.

This allows the processing unit to detect that an initially weak descent becomes more and more steep, so that the brake control signal will be progressively and automatically increased while driving, without any necessary action from the user, for the benefit of more security.

For example, if said topographic variation a is 0 degrees, said instantaneous braking control signal is translated into an electrical intensity value of 10A. If said topographic variation is between 0 and -6 degrees, said instantaneous braking control signal is translated into an electrical intensity value of 20A. If said topographic variation a is between -6 and -12 degrees, said instantaneous braking control signal is translated into an electrical intensity value of 30A.

The interface, for example of the Android type, can allow the user to choose either a set of factory parameters or to personalize his angle values and his adaptive braking values according to his preferences for use of the hybrid bicycle equipped with such a control system, for example its weight and the conditions of environment and use.

SUBSTITUTE SHEET (RULE 26) In an advantageous embodiment of the control system according to the invention, said instantaneous control signal is a control signal for increasing the adaptive and progressive power of said motor of said bicycle, said signal being transmitted by said processing unit to said motor to increase the assistance to the user during pedaling.

Thus, when the processing unit detects a rise during movement, it generates an electric motor control signal, so as to automatically and gradually increase the pedaling assistance, so that the user will not have to pedal harder uphill.

Said motor power increase control signal can take account of at least one previous electric current value corresponding to at least one other braking or acceleration control signal already applied to said hybrid bicycle at at least one interval. time, so as to produce an adaptive and progressive acceleration control signal.

Thus, the processing unit can automatically detect an accentuation of the value a of an initially small slope to gradually increase the control signal sent to the electric motor and thus automatically and gradually increase the pedaling assistance, to greater comfort for the user who has absolutely no action to perform.

Advantageously, said processing unit takes into account at least one datum of physical form proper to said user calculated and / or previously fixed, to produce said instantaneous control signal, said datum of form belonging to the group comprising in a nonlimiting manner:

the weight ;

pedaling muscle power;

a parameter representative of physical fitness;

V02 max;

the power of pressing on the pedal.

In a particular embodiment, said processing unit takes into account at least one physical datum representative of said rolling surface of said hybrid bicycle, said physical datum belonging to the group comprising:

the nature of the displacement surface;

the resistance of the displacement surface;

the dry or wet nature of the moving surface.

Thus, the pedaling assistance can be increased if the hybrid bicycle is riding on sand or gravel, or else suitable braking in the event of a wet road to avoid, for example, too sudden braking likely to cause the bicycle to slip while rolling and drop the user. This embodiment is therefore particularly advantageous since it further increases the level of security of the user of the hybrid bicycle according to the invention, while further improving the experience of use.

The invention also relates to a hybrid bicycle comprising at least one rechargeable battery and an electric motor which can be actuated to assist a user in pedaling, such a bicycle comprising a control system (100) according to the invention, as described above. .

The invention also relates to a method for controlling a hybrid bicycle comprising at least one rechargeable battery and an electric motor which can be actuated to help a user to pedal and at least one data processing unit.

Such a method notably comprises the following steps of:

measurement in real time of instantaneous topographical variations of the displacement surface of said hybrid bicycle during pedaling by at least one sensor connected to said hybrid bicycle;

SUBSTITUTE SHEET (RULE 26) temporary storage in a volatile memory of said topographical variations a in a volatile memory connected to said data processing unit;

automatic control of said hybrid bicycle by said processing unit on the basis of a comparison at regular time interval of said topographical variations a stored in said volatile memory, with at least one reference topographic value.

The invention also relates to a computer program product intended to be executed on a terminal capable of controlling a hybrid bicycle, said mobile terminal having at least one interface and a microprocessor. Such a computer program product implements a method for controlling a hybrid bicycle as described above.

5. List of figures

Other characteristics and advantages of the control system of the hybrid bicycle according to the invention will appear on reading the following description of its preferred embodiments, given solely by way of non-limiting indicative example, with reference to the accompanying drawings in which:

FIG. 1 represents a complete control system for a hybrid bicycle according to an embodiment of the present invention;

FIG. 2 shows, by means of a block diagram, the operation of a hybrid bicycle according to an embodiment of the invention, during the pedaling phases;

FIG. 3 represents, shows, by means of a block diagram, the operation of a hybrid bicycle according to an embodiment of the invention, during the coaster phases; FIG. 4 shows, by means of a block diagram, the operation of a hybrid bicycle according to one embodiment, during a movement on a climb;

FIG. 5 represents, shows, by means of a block diagram, the operation of a hybrid bicycle according to one embodiment, during a movement on a descent;

FIG. 6 represents a synthetic view of the break switch brake system making it possible to recharge the battery of a hybrid bicycle according to the invention, and

FIG. 7 shows in a simplified manner the treatments implemented according to the invention.

6. Detailed description of the invention

6.1. Introduction

The objective of the invention is to propose an adaptive and progressive control system for the behavior of a hybrid bicycle, which is automatic, without obligation for the user to interact while riding with a control interface, so as to propose a new user experience focusing on efficiency; the quality, comfort and / or safety of use for the user. To do this, the control system can take into account a plurality of factors, and in particular the slope of the surface on which the bicycle circulates, the cyclist's pedaling rate, the weight of the latter and / or the situation in which he is placed the hybrid bicycle. Each of these aspects will be more particularly illustrated below.

It should be noted that these different aspects of the invention can be implemented jointly or separately.

Referring to Figures 1 to 7, 100 indicates a system 100 for controlling a bicycle 101 hybrid 1, which may in particular be in the form of a removable device mounted on the handlebars of the bicycle or in the vicinity, and in particular be a device of the computer, tablet, smart phone type, implementing an operating system for example of the Android type, and capable of communicating for example according to the Bluetooth protocol with the engine and if necessary other elements, in particular sensors.

SUBSTITUTE SHEET (RULE 26) 6.2. Taking into account the pedaling / back pedaling cadence

In relation to FIGS. 1 to 3, a first aspect of the present invention relates to a control system 100 for a hybrid bicycle 101 comprising at least one crankset 102, 103 with cranks 103, a rechargeable battery 104 and an electric motor 105 capable of being actuated to assist a user in pedaling, said system 100 comprising at least one data processing unit 106. In a particularly advantageous manner, such a control system 100 according to the invention further comprises at least one sensor 1071; 1072 rotatable fixed on the wheel 102 with cranks 103 of said crankset 102, 103 and connected to said processing unit 106, said sensor 1071; 1072 being able to generate at least one value of pedaling cadence 108 / coaster 109 transmitted to said unit 106 data processing for automatically controlling said hybrid bicycle 101 by automatically adapting the power of said electric motor 105 from said at least one pedaling rate 108 / coaster 109 value.

By definition, the term “automatically controlling the 101 hybrid bicycle” means automatically influencing the level of servo / assistance provided by the electric motor 105 to the user in the pedaling phases 108, or else automatic braking assistance. 204 of said bicycle 101 in the coaster phases 109.

Thus, a system 100 for controlling a hybrid bicycle 101 according to the invention makes it possible to provide greater comfort of use and to offer a higher level of security to its user.

In fact, during the pedaling 108 or coaster pedaling 109 phases of the user on his hybrid bicycle 101, the rotary sensor 1071; 1072 transmits continuously to the processing unit 106, the pedaling 108 or coaster pedaling rates 109 measured. at the level of the wheel 102 with cranks 103 of the crankset 102, 103, also known as the large crankset plate - mobile part of the crankset connected to the frame 112 and on which the crank arms 103 receiving the pedals are fixed.

Thanks to the control system 100 according to the invention, a measurement of positive variation in pedaling cadence 108 by the processing unit 106, that is to say an increase in pedaling cadence 108 of the user of the bicycle 101 hybrid, will automatically and transparently translate for the user into a greater need for pedaling assistance. Thus, the more the user increases his pedaling rate 108, the more the processing unit 106 will transmit a signal 110 of increase in power to the electric motor 105 which will thus increase the pedaling assistance brought to the user in a progressive manner, for greater comfort of use and more security.

In addition and in a particularly new and technically advantageous manner, the sensor 1071; 1072 rotary is also capable of detecting any back-pedaling movement 109 of the user, as well as any variations in back-pedaling rate 109.

Such a system 100 for controlling a hybrid bicycle 101 is particularly new and advantageous, providing greater security and greater comfort in use.

In fact, the control system 100 according to the invention will translate during use and during the movement of the bicycle 101 any coaster movement 109 as representative of a control 111 of the user aimed at braking said bicycle 101.

It will also translate any increase in the coaster pedaling rate 109 of the user as a command 111 for increased braking. Thus, the more the user increases his coaster pedaling rate 109, the more the control system (100) will progressively brake the speed of movement of the hybrid bicycle 101 on which it is installed, for the benefit of more safety.

Such a new braking system based on the coaster pedaling rate 109 of the user during his movement on his bicycle 101 hybrid generates reverse braking, in the sense that instead of

SUBSTITUTE SHEET (RULE 26) provide an engine thrust, the engine 105 will ensure braking by recharging the battery 104. The braking force is therefore linked to the rate of coaster 109.

Conversely, the more the control system 100 detects an increase in the user's pedaling rate 108, the more the control system 100 will automatically and gradually increase for the user the pedaling assistance by transmitting a signal. 110 to increase the servo power to the electric motor 105.

Thanks to the control system 100 according to the invention, the user of such a hybrid bicycle 101 will experience a completely new experience of use, for the benefit of more comfort, safety and pleasure of use.

In a particularly advantageous embodiment, said processing unit 106 is able to generate from said pedaling cadence 108 / coaster pedal 109 value a signal 110 or 111 of power control transmitted to said said electric motor 105, said signal 110 or 111 in the form of an electric current intensity value.

Thus, the higher the pedaling rate 108 measured by said processing unit 106, the more the motor control signal 110 will be translated into an electric intensity value intended to increase the level of the power delivered by the electric motor 105 and therefore the level of pedaling assistance.

Conversely, the higher the coaster rate 109 measured by the processing unit 106 will be high from the data received from the sensor 1071; 1072 rotary, plus the command signal 111 transmitted to the electric motor 105 will be translated into an electrical signal 111 for regenerative braking control. Such regenerative braking offers a double technical advantage on the one hand that the electric motor 105 of the bicycle 101 can also serve as a braking system, which can be supplemented by a second braking. It also makes it possible to electrically recharge the battery 104 during the braking phases, by recovering the kinetic braking energy.

It is also possible in a variant of the control system 100 according to the invention to equip the hybrid bicycle 101 with a set of hydraulic brakes with an electronic switch on the brake levers, such a set being capable of generating a signal of additional braking once interpreted by the processing unit 106.

When the braking signal is detected, the control unit 106 calculates the exact inverse of the use of the accelerator by creating a magnetic resistance generating energy by using the kinetic energy of the bicycle 101 at high speed. .

Advantageously, said control signal 110 or 111 is proportional to an instantaneous power value generated by said electric motor 105 measured continuously during pedaling 108 / coaster 99 by said processing unit 106.

Thus, the command signal 110 or 111 supplied to the electric motor 105 to increase the pedaling aid or to generate the braking of the hybrid bicycle 101 will be perfectly progressive and continuous, smoothly, for the benefit of a great deal of comfort and safety of use.

In a particularly advantageous embodiment of the control system 100 according to the invention, said sensor 1071; 1072 rotary comprises at least two readers 1072 fixed on a fixed part of the frame 112 of said bicycle 101 hybrid and at least twelve magnets 1071 fixed equidistant from each other on said wheel 102 with cranks 103, said magnets 1071 being able to generate the at least twenty-four pulse signals per revolution of said wheel 102 with cranks 103, said pulse signals being transmitted continuously during pedaling 108 / coaster pedal 109 to said processing unit 106 by said at least two readers 1072, said unit 106 processing measuring variations of pedaling 108 / coaster pedaling rate 109 from said received pulse signals and continuously producing a plurality of control signals 110 or 111 of said hybrid bicycle 101

SUBSTITUTE SHEET (RULE 26) adapted to said variations in pedaling 108 / coaster 109 cadence measured by said sensor 1071; 1072 rotary and processed by said processing unit 106.

Thus, if in one second, the processing unit 106 measures six negative pulses (1/4 of a turn behind the cranks 103 of the bottom bracket 102, 103 during the coaster 109 of the user) transmitted by the two readers 1072 of said sensor 1071; 1072 rotary, then the processing unit 106 will detect a request for light braking and transmit a value of electrical regeneration intensity to said electric motor 105 of ten ampere intensity 10A.

If, moreover, in one second, the processing unit 106 measures twelve negative pulses (1/2 of a turn behind the crank arms 103 of the bottom bracket 102, 103 during the coaster 109 of the user) transmitted by the two readers 1072 of said sensor 1071; 1072 rotary, then the processing unit 106 will detect a more pronounced braking request and will transmit a value of electrical regeneration intensity to said electric motor 105 of intensity 20 amps 20A.

The parameters can be adjusted to read every 0.3 seconds the pedaling 108 or coaster 109 rates.

In a particularly advantageous manner, when said processing unit 106 measures an increase / decrease in pedaling frequency 108 / coaster pedal 109, it automatically transmits to said electric motor 105 a signal 110, 111 for controlling the increase / decrease in power proportional to said increase / decrease in pedaling frequency 108 / coaster 109 measured.

In a preferred embodiment, said rotary sensor 1071, 1072 is capable of detecting variations in the rate of coaster 109 of said wheel 102 with cranks 103, to transmit them continuously to said processing unit 106 to continuously produce a plurality of signals 111 for braking control of said hybrid bicycle 101 adapted to said variations in coaster rate 109.

Preferably, the more said coaster variations 109 increase / decrease, the more the motor braking intensity 105 increases / decreases.

By using the on-board computer 113 Android (registered trademark) connected to the processing unit 106 of the control system 100 according to the invention, by Bluetooth connection for example, the user can change all the engine parameters at maximum speed , power output, pedal assistance ratio and even the amount of regenerative braking.

In a particularly advantageous embodiment of the control system according to the invention: if said processing unit 106 receives from said two readers 1072 six negative pulse signals representative of an average coaster pedaling rate 109, said brake control signal 111 is translated into an electric intensity value of 10A transmitted to said electric motor 105;

if said processing unit 106 receives from said two readers 1072 twelve negative pulse signals representative of a strong coaster pedaling rate 1072, said brake control signal 111 is translated into an electric intensity value of 20A transmitted to said motor 105 electric;

- If said processing unit 106 receives from said two readers 1072 twelve negative pulse signals representative of an intermediate coaster pedaling rate 109, said brake control signal 111 is translated into an electric intensity value transmitted to said electric motor 111, according to a Gaussian curve.

The hybrid bicycle 101 is in fact equipped with at least one sensor 107; 1071; 1072 rotatable on the crank wheel 102 of the crankset 102, 103 (pedal assistance sensor). The sensor 1071; 1072 is equipped with two readers 1072 and at least twelve magnets 1071 making it possible to generate, at each revolution of the wheel 102 with cranks 103, twenty-four pulse signals (pedal rotation 360 degrees).

SUBSTITUTE SHEET (RULE 26) These pulse signals are used to calculate the pedaling cadence 108 in order to give the proportional power output to the motor 105: slow pedaling 108 / coaster pedaling 109 will result in a low power for pedaling / braking assistance. A rapid pedaling 108 / coaster pedaling 109 will result in greater power for pedaling or braking assistance by the electric motor 105.

If the user pedals backwards, instead of providing a motor thrust, the motor 105 will provide braking by recharging the battery 104. In the coaster phases 109 of the user, the braking force is therefore linked to the cadence of coaster.

The invention also relates to an electrically assisted bicycle 101 equipped with a control system 100 as described above.

The invention also relates to a method for controlling a hybrid bicycle 101 comprising at least one crankset 102, 103 with cranks 103, at least one rechargeable battery 104 and an electric motor 105 which can be actuated to assist a user in pedaling, and at at least one data processing unit 106.

Such a method according to the invention comprises the following advantageous steps of:

- measure continuously by means of at least one sensor 1071; 1072 rotatable fixed on the wheel 102 with cranks 103 of said bottom bracket 102, 103 and connected to said processing unit 106, at least one pedaling 108 / coaster pedaling 109 value transmitted to said data processing unit 106 by said sensor 1071; 1072 rotary;

- Controlling said hybrid bicycle 101 by automatically adapting the power of said electric motor 105 from said at least one pedaling 108 / coaster 109 cadence value measured by said processing unit 106.

The invention also relates, in a particularly advantageous manner, to a computer program product intended to be executed on a mobile terminal 113 capable of controlling a hybrid bicycle 101, said mobile terminal 113 having at least a touch interface and a microprocessor , said computer program product implementing a method for controlling a hybrid bicycle 101 as described above.

6.3. Taking into account the slope of the surface

In connection with FIGS. 4 to 6, another aspect of the invention is presented. According to this aspect, such a control system 100 further comprises a volatile memory, the sensor 107, 1071, 1072 being connected to said volatile memory via said data processing unit 106 for measuring and storing instantaneous topographic variations in real time. of the surface 201; 202 of movement of said hybrid bicycle 101 during pedaling, said processing unit 106 being configured to control 203; 204 automatically said hybrid bicycle 101 on the basis of a comparison of said topographical variations measured and stored in said volatile memory, with at least one topographic reference value.

Such a solution thus allows the user of the 101 hybrid bicycle to benefit from increased comfort and more safety while riding. In fact, the system 100 according to this aspect makes it possible to automatically and gradually control - therefore with maximum safety for the user - the behavior of the hybrid bicycle 101, while riding and according to the topography 201; 202 of the route taken.

By way of illustrative and nonlimiting example, when the system 100 according to this embodiment detects while riding that the hybrid bicycle 101 is on a climb 201 (a> 0) relative to its direction of movement 205, it will automatically increase pedaling assistance 203, in a perfectly adaptive manner, without any action required by the user.

SUBSTITUTE SHEET (RULE 26) Likewise, when the system 100 according to the invention detects while riding that the hybrid bicycle 101 is on a descent 202 (a <0) relative to its direction of movement 206, it will automatically control the progressive braking 204 and adaptive according to the value a of the descent 202, in a perfectly adaptive manner, and always without necessary action of the user.

Advantageously, said at least one sensor 107 is of the type belonging to the list comprising:

a gyroscope;

an accelerometer;

and perfectly adapted to detect and measure in real time any topographical variations of the surface 201; 202 of movement of said hybrid bicycle 101 during pedaling, with respect to the direction of movement 205; 206 of said bicycle 101 hybrid.

In a particularly advantageous embodiment of the invention, use is made of the gyroscope 107 and / or the accelerometer associated with an Android operating system (registered trademark) executed on a mobile terminal 113 of smartphone type, said gyroscope and / or accelerometer being embedded inside said smartphone.

The integrated accelerometer and the gyroscope will continuously read the different changes in inclination a to automatically detect the ascent 201 or descent 202 of the displacement surface, to control 203; 204 progressively and adaptively the servo 203 of the motor 105 or the automatic and progressive braking 204 of the hybrid bicycle 101 as a function of the different topographical variations encountered during movement 205; 206.

Advantageously, said data processing unit 106 is adapted to translate at a lower regular time interval, for example every one millisecond, each variation with topography stored in said volatile memory into a control signal 203; 204 snapshot of said hybrid bicycle 101, said signal 203; 204 of instantaneous control in the form of an electric current intensity value transmitted to said electric motor.

In order to be able to modify, or simply control in real time the acceleration 203 or braking behavior 204 of said bicycle 101, the volatile memory RAM makes it possible to store the topographic variations while driving, then to the processing unit 106 to generate different signals 203; 204 control by emulating a change of setting in real time, either of the power 203 of the electric motor 105 to produce an acceleration in rise by increase of power of the electric motor 105, or to act on the brake 204 motor by signal 403 of rupture and energy recovery 404, for controlling progressive and adaptive braking 204 in the event of detection of a descent 202 while driving.

The control system 100 updates and calculates the electrical charges 403 on the basis of each topographical variation data stored in the volatile memory, every milliseconds 1000 times per second.

The on-board Android computer of Smartphone type is connected to the command controller, that is to say to the data processing unit 106. It is capable of producing the regeneration parameters in real time necessary for progressive and automatic braking 204; 403 of the hybrid bicycle 101 while riding.

In an advantageous embodiment of the invention, said hybrid bicycle 101 is equipped with a set 400, 401, 402, 404 of hydraulic brakes with an electronic brake switch 400 connected to at least two brake levers 401, 402. Thus, the instantaneous command signal 403 generated is an adaptive and progressive braking command signal transmitted by said processing unit 106

SUBSTITUTE SHEET (RULE 26) to said electronic switch 400 for creating a magnetic resistance 403 intended to slow down or stop said hybrid bicycle 101, when said topographical variation is representative of a descent 202 relative to the direction of movement 206.

This embodiment is particularly advantageous in that it allows the kinetic energy produced while driving to be transformed into an electrical signal for controlling a hydraulic braking system 203; 403 much more efficient and more comfortable for the user, while by partially recovering this kinetic energy to reinject it in the form of electrical energy 404 into the battery 104. Such a hydraulic braking system with electric switch 400 offers the advantage of being able to be directly controlled, in a perfectly adaptive, progressive and automatic manner , by the processing unit 106 of the system 100 according to the invention.

Even more advantageously and for even more smoothness, the braking control signal 203 can be generated according to a predefined braking value scale as a function of predefined values of variations in topography (positive angle value (a> 0) representative of ascents 201 or negative (a <0) representative of descents 202 relative to the direction of movement 205; 206).

This control signal can also be generated according to a Gauss curve, or according to any other braking curve associating such braking values with values of topographical variations, for even more progressiveness in the braking commands of the 101 hybrid bicycle, to the benefit of even more user comfort for the user.

In a particularly advantageous embodiment of the control system 100 according to the invention, the value of electric current of said signal 203; 403 for instantaneous braking control is included in a range of amperage values from 5 to 50 amperes.

The control system 100 according to the invention is thus fully configurable.

By using an on-board Android computer connected to the processing unit via Bluetooth, the user can configure all of the parameters of the engine 105 as desired, for example and without limitation, the maximum speed, the power output, the ratio pedal assistance and even the amount of regenerative braking 403, 404.

Breakage by regeneration 403 of the braking system is similar to the KERS formula (kinetic energy recovery system). Thus, when a brake control signal 204 is detected, the processing unit 106 calculates the exact inverse of the use of the accelerator by creating a magnetic resistor 204; 403 generating energy using the kinetic energy of bicycle 101 at high speed.

The processing unit 106 can automatically and gradually and adaptively configure the choice of the amount of resistance 204; 403 as a function of a predetermined amount of energy to be recovered 404 to transform it into electrical energy which will be stored in the battery 104, for the benefit of greater autonomy.

The lowest setting is 5 amps which recover little energy (5A) and provide light braking.

The Max setting is set to 50A, which allows energy recovery of 50 amps (10 times more than the AC / DC charger supplied with the bike). The friction required to recover 50A is so great that it will provide a very strong break by stopping the bicycle 101 very quickly, while recovering a maximum of kinetic energy transformed into a maximum of electrical energy returning to the battery.

According to an advantageous embodiment of the invention, the signal 204; 403 for instantaneous braking control takes account of at least one previous electrical intensity value corresponding to at least one other braking control signal already applied to said hybrid bicycle 101 at at least one previous time interval, so as to produce an adaptive brake control signal

SUBSTITUTE SHEET (RULE 26) and progressive.

This thus allows the processing unit 106 to detect that an initially weak descent 202 becomes more and more steep, so that the brake control signal will be progressively and automatically increased while driving, without any necessary action from the user, for the benefit of more security.

Advantageously, if said topographic variation a is 0 degrees, said control signal 204; 403 instantaneous braking is translated into an electrical intensity value of 10A. If said topographic variation is between 0 and -6 degrees, said control signal 204; 403 instant braking is translated into an electric current value of 20A. If said topographic variation a is between -6 and -12 degrees, said instantaneous braking command signal 204; 403 is translated into an electrical intensity value of 30A.

The Android interface allows the user to choose either a set of factory settings or to personalize their angle values and their adaptive braking values according to their preferences for using the 101 hybrid bicycle equipped with a such control system 100 according to the invention, for example and without limitation its weight and its conditions of use environment.

In an advantageous embodiment of the control system 100 according to the invention, said signal 203; 403 for instantaneous control is a control signal for increasing the adaptive and progressive power of said motor 105 of said bicycle 101, said signal being transmitted by said processing unit 106 to said electronic motor 105 to increase the assistance provided to the user while pedaling.

Thus, when the processing unit 106 detects a rise 201 during movement 205, it generates a signal 203; 403 electric motor control 105, so as to automatically and gradually increase the pedaling assistance, so that the user will not have to pedal harder uphill.

Advantageously, the signal 203; 403 for controlling the increase in engine power 105 takes account of at least one previous electric current value corresponding to at least one other brake or acceleration control signal already applied to said hybrid bicycle 101 at at least one interval previous time, so as to produce a signal 203 of adaptive and progressive acceleration control.

Thus, the processing unit 106 can automatically detect an accentuation of the value a of an initially low slope 201 in order to gradually increase the signal 203; 403 command sent to the electric motor 105 and thus automatically and gradually increase the pedaling assistance, for greater comfort for the user who has absolutely no action to perform. Advantageously, said processing unit 106 takes into account at least one datum of physical form proper to said user calculated and / or previously fixed, to produce said instantaneous control signal, said datum of form belonging to the group comprising in a nonlimiting manner:

the weight ;

pedaling muscle power;

a parameter representative of physical fitness;

V02 max;

the power of pressing on the pedal.

In an advantageous embodiment of the system 100 according to the invention, said processing unit 106 takes into account at least one physical datum representative of said surface 201; 202

SUBSTITUTE SHEET (RULE 26) of riding said hybrid bicycle 101, said physical data belonging to the group comprising:

the nature of the displacement surface;

the resistance of the displacement surface;

the dry or wet nature of the moving surface.

Thus, the pedaling aid 203 may be increased if the hybrid bicycle 101 rides on sand or gravel, or else the braking 204 adapted in the event of a wet road to avoid, for example, too sudden braking liable to cause the bicycle 101 to slip. while rolling and dropping the user. This embodiment is therefore particularly advantageous since it further increases the level of safety for the user of the hybrid bicycle 101 according to the invention, while further improving the experience of use.

The invention also relates in a particularly advantageous manner to a method for controlling a hybrid bicycle 101 comprising at least one rechargeable battery 104 and an electric motor 105 which can be actuated to assist a user in pedaling and at least one unit 106 for processing data.

Such a method according to the invention comprises the following steps of:

measurement in real time of instantaneous topographic variations of the surface 201; 202 of movement of said hybrid bicycle 101 during pedaling by at least one sensor 107 connected to said hybrid bicycle 101;

temporary storage in a volatile memory of said topographical variations a in a volatile memory connected to said data processing unit 106;

command 203; 204; 403 automatic of said hybrid bicycle 101 by said processing unit 106 on the basis of a comparison at regular time interval of said topographical variations a stored in said volatile memory, with at least one reference topographic value.

The invention also relates to a computer program product intended to be executed on a mobile terminal 113 capable of controlling a hybrid bicycle 101, said mobile terminal 113 having at least a touch interface and a microprocessor. Such a computer program product advantageously implements a method for controlling a hybrid bicycle 101 such as that described above.

The invention could also be applied to a control system of a hybrid vehicle type automobile comprising at least one rechargeable battery and an electric motor, said system comprising at least one data processing unit.

Such a system can further and advantageously comprise a volatile memory and at least one sensor connected to said volatile memory connected via said data processing unit for measuring and storing in real time instantaneous topographical variations in the travel surface of said vehicle. hybrid its displacement and said processing unit is configured to automatically control said hybrid vehicle on the basis of a comparison of said topographic variations measured and stored in said volatile memory, with at least one reference topographic value.

Thus, when the on-board sensor inside the hybrid or 100% electric motor vehicle detects a descent during movement, it will transmit to the processing unit the information representative of this negative topographic variation (alpha <0) and the processing unit will transmit to the electric motor an electric control signal representative of a progressive and adaptive braking command, completely transparent to the user, for the benefit

SUBSTITUTE SHEET (RULE 26) safety and comfort of use.

Advantageously, said at least one sensor is of the type belonging to the list comprising:

a gyroscope;

an accelerometer.

In addition, it can be adapted to detect and measure in real time any topographic variations a of the displacement surface of said vehicle during the displacement of said hybrid vehicle.

6.4. Taking into account situations

According to another particular aspect of the invention, the processing unit can determine a current situation among at least two distinct types of situation, namely in particular a normal traffic situation and an emergency situation, corresponding to a variation greater than a predetermined threshold within a predetermined period of time of said current speed information and / or of said direction change information.

In other words, the processing unit 106 ′ of this embodiment determines a current situation of the hybrid bicycle 101, among at least two situations:

a normal traffic situation,

an emergency situation, corresponding to a variation in speed, acceleration, direction, slope and / or inclination greater than predetermined thresholds.

In the so-called normal situation, the assistance decisions transmitted to the motor 105 by the processing unit 106 'ensure reactive behavior and corresponding to the expectations of the user. This normal situation may, for example, correspond to using a bicycle on a tarmac straight line, in good weather.

On the other hand, in the emergency situation, the processing unit 106 'allows a slowdown or a secure stop. Such an emergency situation can, for example, correspond to a deviation of the cyclist in a downhill turn during the climb, an emergency stop being necessary to prevent him from falling into a ravine.

The fact of determining a situation allows that, subsequently, the control signal is adapted according to the detected situation so that the assistance provided is also adapted to the situation, for example braking or acceleration.

It should be noted that the data processing unit 106 ′ can, in this embodiment, determine other types of situations. For example, the processing unit 106 ′ can in particular determine situations belonging to the group comprising:

a situation of abrupt variation in slope, corresponding to a variation in the slope greater than a second predetermined threshold;

a pre-emergency situation, corresponding to a variation of information representative of the pedaling / coaster pedaling rate greater than a predetermined threshold.

So as to determine the current situation of the hybrid bicycle 101, the processing unit 106 'takes into account, in this embodiment, at least one physical datum representative of the surface 201; 202 of the 101 hybrid bicycle. This physical datum can be, in this embodiment, one of:

the nature of the displacement surface;

the resistance of the displacement surface;

the dry or wet nature of the moving surface.

SUBSTITUTE SHEET (RULE 26) Indeed, depending on the nature of the road and whether it is dry or wet, the grip of the bicycle will not be the same and, consequently, the situation will not be the same, a lower grip can be considered as a pre-emergency situation for cyclist safety issues.

The nature of the displacement surface is a physical datum of the displacement surface which comprises at least two of the categories belonging to the group comprising the states corresponding to:

bumpy road;

flat road;

gravel;

grass;

mud.

Similarly, the grip is not the same on a flat gravel road compared to a bumpy and muddy road, the situation the assistance required will not be identical for these two types of surface.

As for the dry or wet nature, it comprises, in this embodiment, at least two of the categories belonging to the group comprising the states corresponding to:

dry soil;

wet floor;

snowy ground;

icy ground.

It is also possible to provide physical visibility or more generally meteorological data, preset by the cyclist or received from a weather application. For example, we could provide different settings in case of fog, good weather, even rain. Indeed, and even if the assistance setting turns out to be automatic, it may be necessary to adapt this assistance for questions of user comfort, a high speed in the event of fog can be little reassuring. According to this aspect, the processing unit 106 ′ also takes into account at least one physical datum representative of the current situation of said bicycle, said physical datum belonging to the group comprising:

the position of the handlebars of the bicycle relative to the frame;

the inclination of the bicycle relative to its travel surface,

the position of the cyclist on the bicycle.

With regard to the position of the cyclist, this may for example include the possibility of having information if the cyclist is seated in his saddle, as a dancer, or even in a profiled position for gaining speed. Indeed, depending on the position, the weight distribution on the wheels varies, the risk of falling are different, the expectations of the cyclist are different (he needs higher assistance if he is a dancer).

To further refine the assistance to be provided as well as the situation, the processing unit 106 ′ analyzes the measurement signal (s) delivered by the said sensor (s), to determine an estimate of the speed and of the slope, as well as an estimate of at least one of the information belonging to the group including:

the weight of the cyclist,

the position of the cyclist on the bicycle,

the resistance of the displacement surface,

the position of the handlebars of the bicycle relative to the frame,

the incline of the bicycle.

SUBSTITUTE SHEET (RULE 26) The processing unit 106 ′ can also receive, in addition to the data coming from the sensors already mentioned in the other embodiments, data coming from the user.

To do this, the system according to this aspect comprises means for entering information, in the form of buttons and / or a touch screen, conventionally available on a smart phone.

Therefore, this allows the user to be able to provide at least information relating to the cyclist and / or the conditions of use of the bicycle.

In this embodiment, pedaling and braking assistance is determined by said processing unit at least 1000 times per second, so as to provide immediate or almost immediate decisions.

In other words, and so that the response of the processing unit 106 ′ to a situation and to current data is as adequate and as rapid as possible, the pedaling and braking assistance are determined at least every millisecond by the processing unit 106 '.

As before, this determination here takes into account at least two of the following pieces of information:

information representative of the current speed of said bicycle;

information representative of the weight of the cyclist;

information representative of the slope;

information representative of the pedaling / coaster pedaling rate;

direction information / change of direction.

Thus, the control of the hybrid bicycle 101 according to this aspect can take place according to the control method comprising the following steps:

measurement in real time of instantaneous topographic variations of the surface 201; 202 for moving the hybrid bicycle 101 during pedaling 108,

obtaining at least information representative of the weight of the cyclist,

command 203; 204 of the motor 105 on the basis of an analysis at a time interval less than or equal to a millisecond of each variation a of topography to deliver a signal 203; 204 for instantaneous control of said motor, taking account of said information representative of the weight of the cyclist.

In the embodiment described, the instantaneous control signal can for example be:

a signal for increasing the power 203 delivered by the motor 105 adaptively and gradually from the hybrid bicycle 101, in order to increase the assistance provided to the user during pedaling when said topographical variation is representative of an ascent relative to the direction of movement 206, and

an adaptive and progressive braking control signal 403 creating a magnetic resistance 204, 403 intended to slow down or stop the hybrid bicycle 101, when the variation in topography is representative of a descent 202 relative to the direction of movement 206.

It should be noted that the processing unit 106 ′, as well as at least some of the sensors can be, according to one embodiment, grouped in a removable device of the smart phone or tablet type, implementing a dedicated application.

6.4. example of installation

As already mentioned, the invention in its various aspects makes it possible to improve the comfort and safety of the cyclist, and the efficiency of assistance, braking and / or recharging of the battery.

Three aspects have in particular been described, relating respectively to taking into account a pedaling or coaster pedaling rate, the slope and the situations encountered. According to the modes of

SUBSTITUTE SHEET (RULE 26) realization, these aspects can be put independently of each other or in combination, for increased efficiency. The specific features of certain embodiments, described in relation to one or other of these aspects can of course be implemented for other aspects (without all the characteristics associated with the aspect in connection with which they are described are necessarily reproduced).

Many aspects taken into account to optimize assistance can be provided by sensors. In particular, sensors of the accelerometer and gyroscope type present in a smart phone or similar device can be used, to determine the speed and the acceleration, as well as the slope, and more generally, according to the signal processing, the direction, the orientation of the handlebars, the inclination, the weight, the position of the cyclist, the surface condition ... Other sensors can be provided, communicating for example in Bluetooth, for the cadence of pedaling, the load of the battery, the weight of the cyclist ...

FIG. 7 schematically illustrates an example of implementation of the invention, in the form of a block diagram illustrating the different operations implemented.

A data processing unit 71 is used to perform various calculations. It is for example the micro-processor of a smart phone, operating for example under Android. A dedicated application is embedded in the smartphone, to perform these operations, as well as others described below.

Sensors 72, in particular one or more accelerometers 721, for example piezoelectric, capable of detecting accelerations in one or more directions, and a gyroscope 722. Again, in the operating mode using a smart phone, it is possible to use the sensors present in this device (it is of course possible to also use dedicated sensors).

From the raw measurements recorded by these sensors 72, a processing 73 is carried out, to determine useful information. Some of these treatments may be available directly in the device (speed, slope, incline, etc.). Others may require specific treatment, provided for in the application. For example :

the cyclist's weight can be estimated at the time of starting, by moving the handlebars down, which varies depending on the force applied to the handlebars (it is not necessary to have precise information, but for example weight category);

the condition of the surface can be determined by taking note of the movements of the moving handlebars (to detect for example the presence of holes and bumps), the amplitude of these movements (which can indicate whether they are large holes or small movements, which may correspond to gravel), the frequency of these displacements, for example by applying an FFT on the signal detected: a high frequency may be representative of a gravel road;

the presence of slippage of one of the wheels, taking note of sudden lateral movements; the movements of the handlebars, which can indicate a change of direction, the angle of a turn, a dangerous situation - the position of the cyclist, and for example the transition to the position as a dancer, inducing an increased force on the handlebars.

Other information can be delivered by dedicated sensors, such as:

the cadence of pedaling and coaster, delivered by a sensor 74 for example of the type described above;

actuation of the brake levers 75;

the weight of the cyclist, via a sensor under the saddle for example.

If the data delivered by these dedicated sensors must undergo additional processing, it

SUBSTITUTE SHEET (RULE 26) can be supported by the signal processing module 73.

Other information can be provided by the user, via the HMI interface of the smartphone, in particular its touch screen 76, such as data relating to the cyclist (weight, physical condition, etc.) or to the context (meteorology , condition of the roadway ...).

Depending on all of this information, or some of it according to the embodiments, the data processing module 71 performs the calculations enabling it to deliver the useful assistance and braking commands to the electric motor 77 This is powered by a battery 78, which it recharges if necessary in the event of braking.

The calculations carried out by the data processing module include in particular comparisons with predetermined thresholds and with previously recorded states (the commands depend of course on the current state and preferably on a series of previous states, to smooth and optimize assistance comfort), correlations, statistical analyzes, modulations according to secondary criteria ...

In an implementation, the processing comprises two successive stages:

a step 711 of determining a situation (normal situation, emergency situation, pre-emergency situation, change of direction situation, slip situation ...); then

a step 712 of determining the assistance required, generating the commands to be transmitted to the engine, for example according to the approach described above. These commands are however modulated, or calculated differently, depending on the situation previously identified.

Informative data can also be transmitted to the screen 79 of the smartphone.

SUBSTITUTE SHEET (RULE 26)

Claims

claims

1. Control system (100) of a hybrid bicycle (101) comprising at least one rechargeable battery (104) and an electric motor (105), said system comprising at least one data processing unit (106, 106 ') ,

characterized in that it further comprises a volatile memory and at least one sensor (107) connected to said volatile memory connected via said data processing unit (106) for measuring and storing in real time instantaneous topographic variations of the surface (201; 202) of movement of said hybrid bicycle (101) during pedaling (108),

said processing unit (106) being configured to automatically control (203; 204) said motor (105) on the basis of an analysis at a time interval less than or equal to one millisecond of each variation (a) of topography to deliver a signal (203; 204) for instantaneous control of said motor (105), said instantaneous control signal possibly being:

a signal for increasing the power (203) delivered by said motor (105) adaptively and gradually from said hybrid bicycle (101), to increase the assistance provided to the user during pedaling when said variation (a) topographic is representative of a rise relative to the direction of movement (206), and

an adaptive and progressive braking control signal (403) creating a magnetic resistance (204, 403) intended to slow down or stop said hybrid bicycle (101), when said topographical variation (a) is representative of a descent (202) by relative to the direction of movement (206), and in that said processing unit (106, 106 ′) also takes account of at least one item of information representative of the weight of the cyclist using said bicycle to adapt said instantaneous control signal.

2. Control system (100) according to claim 1, characterized in that said instantaneous control signal is in the form of an electric current intensity value.

3. Control system (100) according to claim 1, characterized in that said hybrid bicycle (101) is equipped with a set of hydraulic brakes (400, 401, 402, 403, 404) with an electronic switch (400) brake connected to at least two brake levers (401, 402), and in that said brake control signal (403) is adaptive and progressive and takes account of the actuation of at least one of said levers (401, 402) brake to optimize the braking required.

4. Control system (100) according to claim 3 characterized in that the electric current value of said signal (204) for instantaneous braking control is included in a range of amperage values from 5 to 50 amperes.

5. Control system (100) according to claim 4 characterized in that said signal (204) for instantaneous braking control takes account of at least one previous electric current value corresponding to at least one other braking control signal already applied to said hybrid bicycle (101) at at least one previous time interval, so as to produce an adaptive and progressive brake control signal.

6. Control system (100) according to claim 3, characterized in that:

If said topographic variation a is between 0 and -6 degrees, said instantaneous braking control signal (204) is translated into an electric current value of 20A;

If said topographic variation a is between -6 and -12 degrees, said instantaneous braking control signal (204) is translated into an electrical intensity value of 30A.

7. Control system (100) according to claim 1 characterized in that said signal (203) of

SUBSTITUTE SHEET (RULE 26) command to increase the power takes account of at least one previous value of electric current corresponding to at least one other braking or acceleration control signal already applied to said hybrid bicycle (101) at at least one interval of previous time, so as to produce a control signal for increasing the power of said adaptive and progressive motor (105).

8. Control system (100) according to claim 1, characterized in that said processing unit (106) takes into account at least one piece of physical form representative of said user calculated and / or previously fixed, to produce said control signal ( 203; 204) instantaneous, said shape data belonging to the group comprising:

pedaling muscle power;

a parameter representative of physical fitness;

V02 max;

the power of pressing on the pedal.

9. Control system (100) according to claim 1, characterized in that said processing unit (106) takes into account at least one physical datum representative of said surface (201; 202) of rolling of said hybrid bicycle (101), said physical data belonging to the group comprising:

the nature of the displacement surface;

the resistance of the displacement surface;

the dry or wet nature of the moving surface.

10. Control system (100) according to claim 9, characterized in that said nature of the displacement surface comprises at least two of the categories belonging to the group comprising the states corresponding to:

bumpy road;

flat road;

gravel;

grass;

mud.

11. Control system (100) according to claim 9, characterized in that said dry or wet nature comprises at least two of the categories belonging to the group comprising the states corresponding to:

dry soil;

wet floor;

snowy ground;

icy ground.

12. Control system (100) according to claim 1, characterized in that said processing unit (106, 106 ') takes into account at least one physical datum representative of the current situation of said bicycle, said physical datum belonging to the group including:

the position of the handlebars of the bicycle relative to the frame;

the inclination of the bicycle relative to its travel surface,

the position of the cyclist on the bicycle.

13. System according to claim 1, characterized in that said processing unit (106, 106 ') determines a current situation of said bicycle, among at least two of the situations belonging to the group comprising:

a normal traffic situation,

SUBSTITUTE SHEET (RULE 26) an emergency situation, corresponding to a variation in speed, acceleration, direction, slope and / or inclination greater than predetermined thresholds,

said control signal being adapted according to the detected situation.

14. System according to claim 1, characterized in that said processing unit (106) analyzes the measurement signal or signals delivered by said sensor (s), to determine an estimate of the speed and of the slope, as well as an estimate at least one of the information belonging to the group comprising:

the weight of the cyclist,

the position of the cyclist on the bicycle,

the nature of the displacement surface,

the resistance of the displacement surface,

the dry or wet nature of the traveling surface,

the position of the handlebars of the bicycle relative to the frame,

the incline of the bicycle.

15. The system as claimed in claim 1, characterized in that it comprises information input means, in the form of buttons and / or a touch screen making it possible to provide at least said processing unit (106) information relating to the cyclist and / or the conditions of use of the bicycle.

16. System according to claim 1, characterized in that it comprises a crankset (102, 103) with cranks (103) and at least one rotary sensor (107) fixed on a crank wheel of said crankset (102) and connected to said processing unit (107), said sensor (107) being capable of generating at least one pedaling (108) / coaster pedaling (109) value transmitted to said data processing unit (107) for automatically controlling said bicycle ( 101) hybrid by automatically adapting the power (114; 115) of said electric motor (105) from said at least one pedaling (108) / coaster (109) cadence value.

17. Control system (100) of a hybrid bicycle (101) comprising at least one crankset (102, 103) with cranks (103), a rechargeable battery (104) and an electric motor (105) which can be actuated to assist a user to pedal, said system (100) comprising at least one data processing unit (106),

characterized in that it further comprises at least one rotary sensor (107) fixed on a crank wheel of said bottom bracket (102) and connected to said processing unit (106), said sensor (107) being capable of generating at least a pedaling (108) / back pedaling (109) cadence value transmitted to said data processing unit (106) for automatically controlling said hybrid bicycle (101) by automatically adjusting the power (114; 115) of said electric motor (105) from said at least one pedaling (108) / coaster (109) cadence value.

18. Control system (100) according to claim 17, characterized in that said processing unit (106) takes account of information representative of the weight of the cyclist using said bicycle to adapt the power delivered by said engine.

19. Control system (100) according to claim 16 or 17, is capable of generating from

SUBSTITUTE SHEET (RULE 26) said pedaling (108) / coaster pedaling (109) value a power control signal (110; 111) transmitted to said electric motor (105), said control signal being in the form of an intensity value of electric current.

20. Control system (100) according to claim 16 or 17, characterized in that said control signal (110; 111) is proportional to an instantaneous power value generated by said electric motor (105) measured continuously during pedaling. (108) / coaster (109) by said processing unit (106) based on said pedaling (108) / coaster (109) rate information received from said rotary sensor (107).

21. Control system (100) according to claim 16 or 17, characterized in that said rotary sensor (107) comprises at least two readers (1071) fixed on a fixed part of the frame (112) of said hybrid bicycle (101) and at least twelve magnets (1072) fixed equidistant from each other on said crank wheel of said crankset (102), said magnets (1072) being capable of generating at least twenty-four pulse signals per revolution of said wheel ( 102) with cranks (103), said pulse signals being transmitted continuously during pedaling (108) / coaster (109) to said processing unit (106) by said at least two readers (1071), said unit (106 ) of processing measuring variations in pedaling (108) / coaster (109) cadence from said received pulse signals and continuously producing a plurality of signals (110; 111) for controlling said hybrid bicycle (101) adapted to said variations pedal cadence ge (108) / coaster (109) measured.

22. Control system (100) according to claim 21, characterized in that when said processing unit (106) measures an increase / decrease in pedaling frequency (108) / coaster (109), it automatically transmits to said motor (105 ) electric a signal (110; 111) for increasing (110) / decreasing (111) power control proportional to said increase / decrease in pedaling cadence (108) / coaster (109) measured.

23. Control system (100) according to claim 16 or 17, characterized in that said rotary sensor (1071, 1072) is capable of detecting variations in coaster rate (109) of said crank wheel (102), for continuously transmitting them to said processing unit (102) to continuously produce a plurality of brake control signals (111) (115) from said hybrid bicycle (101) adapted to said variations in coaster rate (109).

24. Control system (100) according to claim 23, characterized in that the more said variations of coaster (109) increase / decrease, the more the braking intensity (115) engine (105) increases / decreases.

25. Control system (100) according to claim 22, characterized in that:

if said processing unit (106) receives from said two readers six negative pulse signals representative of an average coaster pedaling rate (109), said brake control signal (111) is translated into an intensity value 10A electric transmitted to said electric motor (105);

if said processing unit (106) receives from said two readers (1072) twelve negative pulse signals representative of a strong coaster pedaling rate (109), said brake control signal (111) is translated into a value electric intensity of 20A transmitted to said electric motor (105);

if said processing unit (106) receives from said two readers (1072) twelve negative pulse signals representative of an intermediate coaster rate (109), said brake control signal (111) is translated into a value d electric current transmitted to said electric motor (105), according to a Gauss curve.

SUBSTITUTE SHEET (RULE 26)

26. Control system for a hybrid bicycle, comprising at least one crankset crank, an electric motor, a rechargeable battery supplying said motor and a data processing unit controlling said motor so as to provide pedaling assistance when said crankset is actuated in a pedaling direction and braking and recharging of the battery when said crankset is actuated in a back pedaling direction,

characterized in that said processing unit determines a current situation among at least two distinct types of situation, a normal traffic situation and an emergency situation, corresponding to a variation greater than a predetermined threshold within a predetermined period of time of said current speed information and / or said change of direction information, the assistance decisions transmitted to said engine by said processing unit ensuring reactive behavior and corresponding to the expectations of the user in said normal situation, and allowing a slowdown or a safe stop in said emergency situation.

27. The system as claimed in claim 26, characterized in that the pedaling and braking assistance are determined by said processing unit at least 1000 times per second, so as to provide immediate or almost immediate decisions,

and taking into account at least two of the following information:

information representative of the current speed of said bicycle;

information representative of the weight of the cyclist;

information representative of the slope;

information representative of the pedaling / coaster pedaling rate;

information representative of a surface condition on which said bicycle circulates; direction information / change of direction.

28. System according to any one of the preceding claims, characterized in that said processing unit and at least some of said sensors are grouped in a removable device of the smart phone or tablet type, implementing a dedicated application.

29. Electrically assisted bicycle (101) equipped with a control system (100) according to any one of claims 1 to 28.

30. Method for controlling a hybrid bicycle (101) comprising at least one rechargeable battery (104) and an electric motor (105), said system comprising at least one data processing unit (106), characterized in that it includes the following stages:

- measurement in real time of instantaneous topographic variations (a) of the surface (201; 202) of movement of said hybrid bicycle (101) during pedaling (108),

- obtaining at least information representative of the weight of the cyclist,

- control (203; 204) of said motor (105) on the basis of an analysis at time interval less than or equal to a millisecond of each variation (a) of topography to deliver a signal (203; 204) of instantaneous control of said engine, taking account of said information representative of the weight of the cyclist,

said instantaneous control signal being:

a signal for increasing the power (203) delivered by said motor in an adaptive and progressive manner from said hybrid bicycle (101), in order to increase the assistance provided to the user during pedaling when said variation (a) in topography is representative of a rise relative to the direction of movement (206), and

- an adaptive and progressive braking control signal (403) creating a magnetic resistance (204, 403) intended to slow down or stop said hybrid bicycle (101), when said topographical variation (a) is representative of a descent (202) relative to the direction of movement (206).

SUBSTITUTE SHEET (RULE 26)

31. Product computer program intended to be executed on a mobile terminal (112) able to control a hybrid bicycle (101), said mobile terminal (112) having at least a touch interface and a microprocessor, characterized in that it implements a method for controlling a hybrid bicycle (101), according to claim 30.

SUBSTITUTE SHEET (RULE 26)