TWI822660B - Parking assist system for a two-wheeled vehicle & a control method thereof - Google Patents

Abstract

The present subject matter described herein relates to a parking assist system (P) for a two wheeled vehicle which enables ease of vehicle parking while ensuring that safety measures are in place. Particularly, said parking assist system (P) includes an electronic control unit (50) such as a hybrid control unit for controlling output power delivered to a traction motor (53), so that said vehicle can operate in a parking assist mode in a forward direction or a reverse direction at one of a first pre-selected speed and a second pre-selected speed.

Description

Parking assistance system for two-wheeled vehicles and control method thereof

The subject matter described herein relates generally to a parking assistance system for a two-wheeled vehicle, and in particular but not exclusively to a control method thereof.

Parking a vehicle is often challenging for drivers because it involves maneuvering between other parked vehicles, especially on congested roads. However, some situations require maneuvering between two vehicles parked end to end, and other situations require the vehicle to be maneuvered between two vehicles parked parallel to each other in a side-by-side manner. between. Typically, some of the factors that affect maneuverability include the size of the parked vehicle, the turning radius of the parked vehicle, the speed of the vehicle while parked, and the like.

To facilitate easy parking for the driver, four-wheel vehicles are typically equipped with a parking assist system that guides the driver to park the vehicle by indicating to the driver the current direction in which the vehicle is traveling relative to the parked vehicle. Parked properly. However, parking assist systems are not commonly used in two-wheeled vehicles, and two-wheeled vehicles are usually manually propelled for parking; such as: a vehicle equipped to be powered by an internal combustion engine or a traction motor, or both, and An electric vehicle powered by a traction motor. In addition, compared with ordinary two-wheeled vehicles, hybrid/electric two-wheeled vehicles are more difficult to push due to the larger cog torque of the traction motor. What's more, hybrid two-wheeled vehicles are significantly heavier than ordinary two-wheeled vehicles. As a result, pushing the hybrid/electric vehicle into a parking lot proves to be inconvenient. Furthermore, since the initial power/acceleration system typically provided in hybrid/electric two-wheel vehicles is relatively high, it becomes difficult to control the vehicle system for parking.

Some prior art discloses the use of parking assist systems in two-wheeled hybrid/electric vehicles. However, there are some problems with known parking assistance systems. For example, in some hybrid/electric vehicles for which parking assistance systems are known, other drivers, pedestrians or even the vehicle operator himself is informed that the vehicle is moving in a parking mode, especially in the opposite direction. The direction of movement of a parking indicator system is unknown. The lack of a parking indicator system therefore proved to be a safety risk. Furthermore, in some hybrid/electric vehicles, the operation of the parking assist system to facilitate reverse parking by moving the vehicle in the opposite direction is known, where the parking assist system is activated only by pressing a button/parking switch. Start. However, if the vehicle operator accidentally presses the parking switch, the vehicles are in danger of automatically moving in the opposite direction.

Therefore, it is desirable to propose a parking assistance system for two-wheeled vehicles, especially for two-wheeled hybrid/electric vehicles with improved safety features.

In one aspect, the invention proposes a method for controlling the power output of a traction motor (53) of a two-wheeled vehicle adapted to operate in different operating modes and comprising one or more power supplies, an electronic control unit (50) and an instrument cluster (52); wherein the electronic control unit is configured to control the output power delivered to the traction motor (53) to start the vehicle; the method includes the step of: when an ignition switch ( 51) is in an ON state and detects whether a parking switch (56) of the vehicle is in the ON state; when the ON state of the parking switch is detected, a parking assist mode is selected and a parking mode signal is transmitted to a plurality of hazard lights (57); communicating the selection of the parking assist mode to the electronic control unit (50) through the instrument cluster (52), and initiating the parking assist mode; through the control unit (50) 50), at the start of the parking assist mode, check vehicle parameters such as vehicle speed, accelerator position, brake ON/OFF status, and the rotation angle of one rear wheel; through the control unit (50), when a first When one of one set of predetermined conditions and a second set of predetermined conditions is satisfied after initiation of the parking assist mode, controlling the output power delivered to the motor (53); and operating the vehicle in the parking In the auxiliary mode, a parking instruction signal is transmitted to the instrument cluster (52) through the control unit (50).

In another aspect, the invention proposes a parking assistance system (P) for a two-wheeled vehicle equipped to operate in different driving modes and comprising: a plurality of vehicle switches, including an ignition switch (51) and an Brake switch (55); one or more power sources, including a traction motor (53) and a battery (60); a plurality of vehicle sensors, including a throttle position sensor, one or more Hall sensors detector; and an instrument cluster (52); wherein the parking assistance system (P) includes an electronic control unit (50), which is connected to the one or more power supplies, to the instrument cluster (52), to the plurality of vehicle sensors and the plurality of vehicle switches; characterized in that the electronic control unit (50) is responsive to inputs from the instrument cluster (52), the plurality of vehicle sensors and the plurality of vehicle switches. , and controlling the output power delivered to the traction motor (53) to cause the vehicle to operate in a parking assist mode when one of a first set of predetermined conditions and a second set of predetermined conditions is met. .

10‧‧‧Two-wheeled vehicles

11‧‧‧Handle

12‧‧‧Base plate

13‧‧‧Rearview mirror

14‧‧‧Internal combustion engine (engine)

15A‧‧‧Head tube

15B‧‧‧Supervisor

15C‧‧‧Side tube

15FP‧‧‧Front panel

15LS‧‧‧Leg baffles

15SC‧‧‧Cover under the seat

15SP‧‧‧Left and right panels

19‧‧‧Swing arm

25‧‧‧Seat assembly

26‧‧‧Rear fender

27‧‧‧Rear wheel

30‧‧‧Suspension device/shock absorber

35A‧‧‧Headlight

35B‧‧‧Tail light

50‧‧‧Electronic control unit

51‧‧‧Ignition switch

52‧‧‧Instrument cluster

53‧‧‧Traction motor

54‧‧‧Throttle position sensor

55‧‧‧Brake switch

56‧‧‧Parking switch

57‧‧‧Hazard lights

60‧‧‧battery

99‧‧‧Flowchart

100-111‧‧‧Blocks (steps)

A detailed description of the subject matter of the present invention is described with reference to the accompanying drawings. The same reference numbers are used throughout the drawings to refer to the same features and components.

FIG. 1 is a schematic representation of a two-wheeled vehicle according to an embodiment of the present invention.

FIG. 2 is a schematic representation of a parking assistance system according to an embodiment of the present invention.

FIG. 3 is a flowchart illustrating steps of a method of operating a parking assistance system according to one embodiment of the present invention.

The present invention is designed in view of the above problems.

One object of the present invention is to provide a parking assistance system for a two-wheeled vehicle.

Another object of the present invention is to provide a parking assistance system for a two-wheeled vehicle, which can assist the vehicle to move in a forward direction or a reverse direction in a parking assistance mode.

It is a further object of the present invention to provide a parking assistance system including an electronic control unit configured to control power delivered to a traction motor of the vehicle for driving in a forward or reverse direction. Start the vehicle.

Another object of the present invention is to provide a parking assistance system, which includes an electronic control unit configured to transmit a parking indication signal to an instrument cluster for notification of selection of the parking assistance mode.

Yet another object of the present invention is to provide a parking assistance system, which includes an electronic control unit configured to transmit a parking signal to a plurality of hazard lights of the vehicle for notification of selection of the parking assistance mode. .

In view of the above and other objects, the present invention proposes a two-wheeled vehicle that includes a parking assist system for assisting the vehicle to move in a forward or reverse direction in a parking assist mode. According to one aspect of the invention, the parking assist system includes an electronic control unit that helps assist the vehicle in forward or reverse direction movement in the parking assist mode. In particular, the electronic control unit is operative to assist the vehicle in a parking assist mode by controlling the output power delivered to one of the traction motors of the vehicle. For example, the electronic control unit is operative to control the output power delivered to the vehicle's traction motor based on vehicle speed, throttle position, braking conditions, and the like, which is received from signals such as Hall sensors, throttle position, etc. Vehicle sensors, brake switches and the like; allow a vehicle operator to have better control of the vehicle when parking.

In particular, according to an embodiment of the present invention, the electronic control unit is configured to operate when a parking switch of the vehicle is in the ON state and one of the first set of predetermined conditions and the second set of predetermined conditions is met. , which controls the output power delivered to the traction motor. In one embodiment, the first set of predetermined conditions are satisfied when the vehicle speed is below a first threshold vehicle speed and the throttle position is in an open state. Therefore, when the control unit detects the first set of predetermined conditions, the control unit causes the vehicle to operate in the parking assist mode in a forward direction. Thus, since the output power delivered to the traction motor is controlled, it is ensured that the vehicle moves at a first preselected speed that is less than the first threshold vehicle speed. In other words, the vehicle is caused to move at a lower speed when it operates in the parking assist mode, thereby providing the vehicle operator with better control of the vehicle during parking and enabling easy maneuvering of the vehicle during parking.

Likewise, the electronic control unit functions to control the output power delivered to the traction motor when the second set of predetermined conditions are met, and cause the vehicle to move in a reverse direction. According to an embodiment of the present invention, the second set of predetermined conditions is when the vehicle speed is zero, the accelerator position is in a closed state, the brake is in an OFF condition, and the rotation angle obtained by one of the rear wheels of the vehicle is A predefined degree of rotation (for example: a quarter of a turn of the rear wheel) is satisfied. In other words, the second set of predetermined conditions is met when the vehicle is manually pushed backward, whereby the electronic control unit detects a quarter-turn of the rear wheels and causes the vehicle to move in the opposite direction. . Therefore, when the vehicle operator pushes the vehicle in the reverse direction to park, the electronic control unit automatically causes the vehicle to move in the reverse direction at a second preselected speed. The provision of the above features also facilitates easy removal of the vehicle from a parked position. According to an embodiment of the invention, the second preselected speed of the vehicle is smaller than the first preselected speed. In other words, the vehicle moves in the reverse direction at a lower speed than in the forward direction, thus ensuring the safety of the vehicle and the vehicle operator. At the same time, however, since a minimum amount of power is supplied to the traction motor, it is ensured that the vehicle system can be moved in the reverse direction without too much effort, which would otherwise be difficult to propel manually, especially uphill. situation. In particular, since a manual intervention to push the vehicle in the reverse direction is involved for the electronic control unit to start the vehicle in the reverse direction, it is ensured that there will be no faults caused simply by stopping the vehicle. Inadvertent movement of the vehicle in the opposite direction due to the pressing/selecting of the switch.

According to another aspect of the invention, in the two-wheeled vehicle, the parking switch relationship is combined with a hazard switch. Therefore, when the parking switch is switched to ON, a plurality of hazard lights start to shine. Therefore, it is ensured that when the vehicle is operating in the parking assist mode, passers-by/pedestrians are alerted and alert.

According to yet another aspect of the present invention, a parking instruction signal is transmitted from the electronic control unit to the instrument cluster of the vehicle. In particular, in one embodiment, the parking indication signal provided to the instrument cluster may be a visual indication that includes text and color indications; and in another embodiment, the parking indication signal provided is Can be an auditory indication.

Furthermore, the present invention also describes a method of operation of the electronic control unit for controlling the output power delivered to the traction motor when the parking switch is switched ON.

The summary provided above explains the basic features of the invention and does not limit the scope of the invention.

The subject matter of the invention described herein therefore relates to a parking assistance system for a two-wheeled vehicle, which enables easy parking of the vehicle and ensures appropriate safety measures. In particular, the parking assist system includes an electronic control unit, such as a hybrid control unit, for controlling the output power delivered to a traction motor such that the vehicle is capable of driving at a first preselected speed and a third speed. One of two pre-selected speeds operates in a parking assist mode in a forward direction or a reverse direction.

Exemplary embodiments detailing the features of the parking assistance system according to the present invention will be described below. Embodiments described herein apply to a vehicle powered by two or more power sources (power sources) including an internal combustion engine, a traction motor, and a battery. However, the present invention is not limited to its application and can also be applied to vehicles that only use traction motors and batteries, such as electric vehicles.

The arrows provided in the upper right corner of each figure depict directions relative to the vehicle, where, if and when applicable, an arrow F indicates a forward direction, an arrow R indicates a rearward direction, and an arrow Up An arrow indicates the upward direction, an arrow Dw indicates the downward direction, an arrow Rh indicates the right side, and an arrow Lh indicates the left side.

The present invention has been demonstrated with respect to a hybrid two-wheeled vehicle shown in Figure 1.

Referring to FIG. 1 , a hybrid two-wheeled vehicle 10 is illustrated according to an embodiment of the present invention. FIG. 1 is a side view of the hybrid vehicle 10 . The illustrated vehicle 10 has a crossover frame assembly. This type of crossover frame assembly includes a head tube 15A, a main tube 15B, and a pair of side tubes 15C. In particular, the main tube 15B extends downwardly from a rear end portion of the head tube 15A and then extends rearwardly in an oblique manner. Furthermore, the pair of side pipes 15C extends upwardly from the main pipe 15B. Thus, the frame assembly extends from a front end portion of the vehicle to a rear end portion.

The hybrid vehicle 10 further includes a plurality of body panels for covering and mounting to the frame assembly. In this embodiment, the plurality of body panels include a front panel 15FP, a leg panel 15LS, an under-seat cover panel 15SC, and a left and right side panel 15SP. Alternatively, a glove box system can be mounted to the leg guard 15LS.

A floor 12 is provided in a span space formed between the leg panel 15LS and the cover panel 15SC under the seat. Furthermore, a seat assembly 25 is disposed above the cover 15SC under the seat and is mounted to the pair of side tubes 15C. A utility box (not shown) is disposed below the seat assembly 25 . A fuel tank (not shown) is positioned at one end of the universal tank. A rear fender 26 for covering at least part of a rear wheel 27 is positioned below the universal box.

One or more suspension/shock absorbers 30 are provided at a rear end portion of the vehicle 10 for a comfortable ride. Furthermore, the vehicle 10 series includes a plurality of electrical and electronic components, including a headlight 35A, a taillight 35B, a transistor controlled ignition (TCI, transistor controlled ignition) unit (not shown), a starter motor ( (not shown) and the like. A touch screen LCD unit (not shown) is provided on a handle 11 to display various operating modes, power flow patterns and warning signals. The rearview mirror 13 is installed on the right and left sides of the handlebar 11 . This type of vehicle, the 10 Series, is also equipped with hazard lights (not shown).

An internal combustion engine (hereinafter referred to as "engine") 14 is disposed behind the floor 12 and supported between the pair of side tubes 15C. In particular, the internal combustion engine 14 is supported by a pivot arm 19 . The swing arm 19 is attached to a bottom of the main tube 15B by a toggle link (not shown). The other end of the swing arm 19 holds the rear wheel 27. The rear wheels 27 and swing arms 19 are connected to the pair of side frames 15C by one or more shock absorbers 30 provided on each side of the vehicle 10 .

The hybrid vehicle 10 series further includes a traction motor 53 installed on a hub of the rear wheel 27 . The traction motor 53 is powered by a battery (not shown) disposed at a rear end portion of the vehicle. However, in another embodiment, the battery system may be disposed in a front portion of the vehicle. An electronic control unit 50 (shown in Figure 2) is also provided to control various vehicle operating modes.

The hybrid vehicle 10 is configured to be propelled by the engine 14 alone, the traction motor 53 alone, or both the engine 14 and the traction motor 53 . At zero vehicle speed, a driver can select any of four operating drive modes by means of a mode switch. The four operating drive modes of hybrid vehicle 10 are: (a) a single engine mode in which the vehicle is started by engine 14 alone; (b) a single motor mode in which the vehicle is started by traction motor 53 alone ; (c) a hybrid launch mode, in which the engine 14 and the traction motor 53 are used to launch the vehicle; (d) a mixed economy mode, in which only the engine 14 or only the traction motor 53 is used, depending on the vehicle operating conditions. or both to start the hybrid vehicle.

In other words, the rear wheels 27 of the vehicle are driven by the engine 14 alone, the motor 53 alone, or both the engine 14 and the motor 53 . In particular, according to one embodiment of the invention, power from the engine 14 to the rear wheels 27 is transmitted by a transmission assembly (not shown) which includes a drive system. However, when the traction motor 53 is driven, the power from the motor 53 is directly transmitted to the rear wheels 27 . In this embodiment, the traction motor 53 is covered by a motor guard (not shown) from at least one side.

As described above, the vehicle 10 is adapted to operate in a parking assist mode by means of a parking assist system P provided thereto.

Referring to Figure 2, a schematic representation of a parking assistance system P according to one embodiment of the present invention is illustrated. The parking assistance system P includes an electronic control unit 50, which is configured to be connected to various other components such as the instrument cluster 52, the traction motor 53, and the battery 60, and is connected to the ignition switch 51, the throttle position sensor, and the like. 54. A plurality of vehicle sensors and vehicle switches such as brake switch 55, parking switch 56 and the like to receive various inputs regarding vehicle operating conditions. In particular, the electronic control unit 50 communicates with the above-mentioned components, sensors and switches via a controller area network (CAN). Some of the components described above, such as battery 60, and instrument cluster 52, may include their own controllers. For example, the battery 60 may have a battery control module (BCM) or a battery management system (BMS) that transmits and receives signals to and from the battery 60 and the electronic control unit 50 . In this embodiment, the instrument cluster 52 includes a first microcontroller for communicating with the electronic control unit 50 . Furthermore, the traction motor 53 is integrated with one or more Hall sensors for communication with the electronic control unit 50 . Furthermore, the electronic control unit 50 is operatively connected to the battery 60 and the traction motor 53 . Although the battery 60 powers the electronic control unit 50, the power delivered from the battery 60 to the traction motor 53 is controlled by the electronic control unit 50.

In this embodiment, the instrument cluster 52 includes a first microcontroller that is communicatively connected to an electronic control unit 50 having a second microcontroller via CAN communication. Based on the information received from the plurality of vehicle sensors/switches, the electronic control unit 50 provides vehicle information, which is then processed by the first microcontroller for display on the instrument cluster 52 . The instrument cluster 52 provides various vehicle operation related information to the vehicle operator, such as drive mode operation, parking mode operation, battery charge status and the like. In doing so, the instrument cluster 52 represents the vehicle as a schematic or graphic representation. The schematic or graphical representation provides the vehicle operator with a better idea of how the vehicle is operating and whether there are any faults in the vehicle, and is therefore more appropriate than a conventional analog or digital display device. it works.

For example, in this embodiment, when the electronic control unit 50 activates a parking assist mode, it communicates to the instrument cluster 52 and a visual indication in the form of visual text is provided on the instrument cluster 52 to notify The vehicle operator has control over the vehicle in the park assist mode. What's more, when the parking switch 56 is selected, a signal is sent to a plurality of hazard lights 57, and the plurality of hazard lights 57 start to glow, giving a warning to other vehicles/pedestrians, and the vehicle will move slowly.

The operation method of the parking assistance system P according to an embodiment of the present invention is explained in detail with reference to FIG. 3 . In particular, FIG. 3 illustrates the operating steps of the first microcontroller and electronic control unit 50 in the instrument cluster 52 for operating the vehicle in the parking assist mode. At the outset, it is noted that some of the steps in flowchart 99 may be performed in different orders, including simultaneously. Furthermore, the steps shown in flowchart 99 are ongoing and do not need to end at the last step.

At block 100, in a first step of its operation, the electronic control unit 50 determines whether the ignition switch 51 is in an ON/OFF state. Under a condition when the ignition switch is in the ON state and when the vehicle operator switches the parking switch to ON, the first microcontroller in the instrument cluster 52 detects the ON of the parking switch at block 101 status, and at block 102 the parking assist mode is selected. In particular, according to one aspect of the invention, when the parking switch relationship is selected, the parking switch input is transmitted to the instrument cluster. The parking mode signal is also sent to a plurality of hazard lights, causing the hazard lights to illuminate. Afterwards, in block 103, the first microcontroller of the instrument cluster also communicates with the electronic control unit via CAN communication that the parking assist mode is selected. In other words, what is communicated via CAN communication is that the vehicle drive mode has been changed to the parking assist mode. In a condition when the parking assist mode is not selected by switching the parking switch ON, the vehicle continues to operate in the existing drive mode. Furthermore, when the electronic control unit detects that the parking assist mode is selected, it determines whether the existing vehicle operating conditions are suitable for the vehicle to operate in the parking assist mode. For example, according to one aspect of the invention, the electronic control unit checks whether the first set of predetermined conditions or the second set of predetermined conditions are satisfied, thereby enabling operation of the vehicle in the parking assist mode. According to one embodiment, a first set of predetermined conditions are set in blocks 104 and 105, and a second set of predetermined conditions are set in blocks 107, 108, and 109. After the ECU detects the first set of predetermined conditions or the second set of predetermined conditions as described above, the parking mode indication signal is transmitted to the instrument cluster, whereby the instrument cluster is displayed in a display panel "Parking assist ON".

In this embodiment, at block 104, the electronic control unit checks the vehicle speed to see whether the vehicle speed is zero or lower than the first threshold speed. If the vehicle speed is zero or lower than the first threshold speed, the electronic control unit initiates the parking assist mode. In other words, the electronic control unit ensures that the selection of the parking switch by the vehicle operator is intentional before enabling the parking assist mode. In particular, in this embodiment, input regarding vehicle speed is provided to the electronic control unit by one or more Hall sensors arranged in the traction motor. In this embodiment, the first threshold speed may be in the range of 8-10km/h.

Furthermore, at block 105, the electronic control unit checks the throttle position. If the throttle position is open, at block 106 the electronic control unit enables operation of the parking assist mode in a forward direction at a first preselected speed in the range of 5-6 km/h. At the same time, a signal system is also sent to the instrument cluster to display the parking sequence in the form of visual text or backlight color...etc.

However, if the throttle is closed, the electronic control unit checks the conditions set at block 107. At block 107, the electronic control unit checks whether the vehicle speed is zero, the throttle position is closed, and the brake input is in the OFF condition. If the conditions set at block 107 are met, at block 108 the electronic control unit checks for reverse rotation of the rear wheels. Input regarding the reverse rotation of the rear wheels is received by the electronic control unit from the one or more Hall sensors disposed in the traction motor. In this embodiment, when a predetermined rotation angle (for example: 90°) is detected on the rear wheel, the electronic control unit enables the parking assist mode to face the reverse direction. In other words, before activating the parking assist mode in the reverse direction, the electronic control unit checks whether the vehicle operator has pushed the vehicle at least slightly in the reverse direction until a 90° turn is obtained at the rear wheels. Furthermore, in block 109, the electronic control unit also checks whether the vehicle speed is greater than the second threshold speed, for example, greater than 2-3km/h. If the vehicle speed is not greater than the second threshold speed, the electronic control unit enables operation of the parking assist mode with a second preselected speed in the range of 3-4km/h in a reverse direction. At the same time, a signal is also sent to the instrument cluster to display the parking sequence in the form of a visual text or in the form of backlight color. However, if the vehicle speed is greater than the second threshold speed, the electronic control unit activates electric braking. This ensures that when the vehicle operator attempts to park the vehicle on a downhill slope, the vehicle does not begin to decelerate due to the additional power provided to the traction motor in the park assist mode. Therefore, when the vehicle speed is greater than the second threshold speed, the brakes are applied as a safety feature when the vehicle operator attempts to park the vehicle on a downhill slope. Furthermore, when the parking assist mode in the reverse direction is enabled, at block 111 the electronic control unit also checks whether the current supplied to the traction motor exceeds a threshold current. If the control unit detects that the current supplied to the traction motor exceeds a threshold current, the control unit stops the current/power supply to the traction motor. This system is particularly useful when the motor is subject to larger loads; for example, when the vehicle operator suddenly attempts to stop the vehicle by hand on a downhill slope without applying the brakes. load system encountered. Therefore, in order to prevent the vehicle from accelerating, especially in a downhill situation, the electronic control unit is also equipped to detect the current/power supplied to the motor that is greater than the threshold current, so that the vehicle can move safely in the opposite direction. .

The present invention therefore proposes a method for assisting the movement of a two-wheeled vehicle in a parking assist mode in a forward or reverse direction. Because the present invention helps optimize the power delivered to the traction motor when the park assist mode is enabled, the vehicle operator may find it easier to control and maneuver the vehicle during parking. Furthermore, since at least some minimum amount of power is supplied to the traction motor, the vehicle operator does not have to struggle to push the vehicle during parking.

Although the present invention has been shown and described with respect to the foregoing preferred embodiments, it will be apparent to those skilled in the art that changes in form, connections, and details may be made therein without departing from the scope of the patent as set forth in the accompanying application. the spirit and scope of the invention as defined.

50‧‧‧Electronic control unit

51‧‧‧Ignition switch

52‧‧‧Instrument cluster

53‧‧‧Traction motor

54‧‧‧Throttle position sensor

55‧‧‧Brake switch

56‧‧‧Parking switch

57‧‧‧Hazard lights

60‧‧‧battery

Claims (10)

A method for controlling the output power of a traction motor (53) of a two-wheeled vehicle adapted to operate in different operating modes, the two-wheeled vehicle comprising one or more power supplies, an electronic control unit ( 50) and an instrument cluster (52); wherein the electronic control unit is equipped to control the output power delivered to the traction motor (53) to start the vehicle; the method includes the step of: when an ignition switch (51 ) is in an ON state and detects whether a parking switch (56) of the vehicle is in the ON state; when the ON state of the parking switch is detected, a parking assist mode is selected and a parking mode signal is transmitted to a plurality of hazard lights (57); communicating the selection of the parking assist mode to the electronic control unit (50) through the instrument cluster (52), and initiating the parking assist mode; through the control unit (50 ), at the start of the parking assist mode, check vehicle parameters consisting of vehicle speed, accelerator position, brake ON/OFF status, and the rotation angle of a rear wheel; through the control unit (50), when a When one of the first set of predetermined conditions and a second set of predetermined conditions is satisfied after initiation of the parking assist mode, control the output power delivered to the motor (53); and operate the vehicle in the In the parking assist mode, a parking instruction signal is transmitted to the instrument cluster (52) through the control unit (50). Such as the method of claim 1, wherein the first set of predetermined conditions are satisfied when the vehicle speed is lower than a first critical speed and the accelerator position is in an open state. For example, the method of item 1 of the patent application scope, wherein the second set of predetermined conditions is if the vehicle speed is zero, the accelerator position is in a closed state, the brake is in an OFF condition, and the rotation angle of the rear wheel is in the rear A predefined degree of rotation of the wheel is satisfied. Such as the method of claim 1, wherein the parking assist mode is to assist the vehicle to move in one of a forward direction and a reverse direction at one of a first preselected speed and a second preselected speed. By. Such as the method of claim 2, wherein the parking assist mode assists the vehicle to move in one of a forward direction and a reverse direction at one of a first preselected speed and a second preselected speed. and wherein when the first set of predetermined conditions are met, the parking assist mode assists the vehicle to move at the first pre-selected speed in the forward direction. Such as the method of claim 3, wherein the parking assist mode assists the vehicle to move in one of a forward direction and a reverse direction at one of a first preselected speed and a second preselected speed. and wherein when the second set of predetermined conditions are met, the parking assist mode assists the vehicle to move in the reverse direction at the second preselected speed. Such as the method of claim 2, wherein the parking assist mode assists the vehicle to move in one of a forward direction and a reverse direction at one of a first preselected speed and a second preselected speed. and wherein the first preselected speed is less than the first threshold speed, and wherein the second preselected speed is less than the first preselected speed. For example, in the method of item 1 of the patent application, the parking switch (56) is connected to a Danger switches are combined. For example, the method of item 1 of the patent application scope, wherein the parking instruction signal transmitted to the instrument cluster (52) is selected from a group consisting of a visual text instruction signal, a visual color instruction signal, an auditory signal and the like. group. A parking assistance system (P) for a two-wheeled vehicle, the two-wheeled vehicle is equipped to operate in different driving modes, the two-wheeled vehicle includes: a plurality of vehicle switches, including an ignition switch (51) and a brake switch (55); one or more power sources, including a traction motor (53) and a battery (60); a plurality of vehicle sensors, including a throttle position sensor, one or more Hall sensors ; and an instrument cluster (52); wherein the parking assistance system (P) includes an electronic control unit (50), which is connected to the one or more power supplies, the instrument cluster (52), the plurality of Vehicle sensors and the plurality of vehicle switches; characterized in that the electronic control unit (50) is responsive to inputs from the instrument cluster (52), the plurality of vehicle sensors and the plurality of vehicle switches, and checks Vehicle parameters consisting of vehicle speed, accelerator position, brake ON/OFF status, and the rotation angle of one rear wheel, in order to control the output power delivered to the traction motor (53), thereby controlling the output power delivered to the traction motor (53) when a first set of scheduled Satisfaction of one of the conditions and a second set of predetermined conditions causes the vehicle to operate in a parking assist mode.

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