CN106042945A - Mechanical differential pure electric driven electric automobile - Google Patents
Mechanical differential pure electric driven electric automobile Download PDFInfo
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- CN106042945A CN106042945A CN201610344180.4A CN201610344180A CN106042945A CN 106042945 A CN106042945 A CN 106042945A CN 201610344180 A CN201610344180 A CN 201610344180A CN 106042945 A CN106042945 A CN 106042945A
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- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims description 27
- 239000000523 sample Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 11
- 238000004378 air conditioning Methods 0.000 claims description 8
- 230000008929 regeneration Effects 0.000 claims description 8
- 238000011069 regeneration method Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 abstract description 12
- 230000004907 flux Effects 0.000 abstract description 7
- 239000003990 capacitor Substances 0.000 description 9
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- 238000013519 translation Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a mechanical differential pure electric driven electric automobile which comprises drive shafts distributed in pairs. The drive shafts distributed in pairs are in transmission connection with a left gear and a right gear of a differential mechanism. Each drive shaft comprises a first half drive shaft and a second half drive shaft which are sequentially connected. In the direction away from the differential mechanism, each first half drive shaft and the corresponding second half drive shaft are in transmission connection sequentially. Each first half drive shaft is provided with a disc type motor controller, a disc type motor and a planetary reducer. Each disc type motor controller is connected with the corresponding disc type motor and used for controlling the corresponding disc type motor. Each disc type motor is in transmission connection with the corresponding planetary reducer, and each planetary reducer rotates through the corresponding first half drive shaft and the corresponding second half drive shaft. The tail end of each second half drive shaft is in transmission connection with a wheel of the electric automobile. By the adoption of the above scheme, the problem that motors of the traditional radial magnetic flux type and traditional step parallel shaft reducers are adopted in current electric automobiles, and consequently the occupied space is relatively large can be solved.
Description
Technical field
The present invention relates to electric automobile design field, particularly relate to a kind of pure power-actuated electronic vapour of mechanical differential
Car.
Background technology
Day by day serious along with the day by day exhausted of resource and environmental pollution, tapping a new source of energy and reducing environmental pollution becomes and works as
The main task of modern society.In such cases, the update of automobile is day by day frequent, environmental pollution is less and power source more
The electric automobile of cleaning is more and more universal, and electric automobile is also the field that society puts forth effort development.
At present, electric automobile includes pure electric automobile and hybrid vehicle.Either pure electric automobile still mixes dynamic
Power automobile all uses traditional motor to combine traditional ladder parallel shaft (speed) reducer and realizes driving.Traditional motor is usually
The motor of radial flux type, such as AC permanent magnet synchronous motor, dc motor or AC asynchronous motor.We know
Road, the motor reel of radial flux type is relatively big to installation dimension, the power density of this type of motor and inefficient.And ladder
Parallel shaft (speed) reducer occupies bigger axial space.It will be apparent that current electric automobile uses the motor of radial flux type
Mode in conjunction with ladder parallel shaft (speed) reducer can increase the volume of vehicle body.It will be apparent that strict for space requirement, efficiency is higher
For electric automobile, the motor of radial flux type and ladder parallel shaft (speed) reducer can cause other parts of electric automobile
(such as battery) cannot reasonable Arrangement, even cannot arrange.Visible, use the motor of the radial flux type of transmission to combine rank
Ladder parallel shaft (speed) reducer can have a strong impact on development and the popularization of electric automobile.
Summary of the invention
It is an object of the invention to provide a kind of pure power-actuated electric automobile of mechanical differential, to solve current electronic vapour
Car uses the motor of traditional radial flux type and ladder parallel shaft (speed) reducer to there is the bigger problem that takes up space.
To achieve these goals, the present invention provides following technical scheme:
A kind of pure power-actuated electric automobile of mechanical differential, including the drive shaft being distributed in pairs, distribution is described in pairs
Drive shaft left side gear and right side gear with described differential mechanism respectively is in transmission connection；Described drive shaft includes being sequentially connected with
First jack shaft and the second jack shaft；In the direction away from described differential mechanism, described first jack shaft and second drives
Semiaxis transmission successively is connected；It is disposed with disc type electric machine controller, disc type electric machine and planetary reduction gear on described first jack shaft；
Described disc type electric machine controller is connected with described disc type electric machine, is used for controlling described disc type electric machine；Described disc type electric machine is with described
Planetary reduction gear is in transmission connection, and described planetary reduction gear is rotated by described first jack shaft and described second jack shaft；
The end of described second jack shaft is connected with the wheel drive of described electric automobile.
Preferably, the planet carrier of the described planetary reduction gear in the described drive shaft of described differential mechanism both sides and described differential
The housing of device is fixedly linked.
Preferably, at the direction of the described left side gear near described differential mechanism, described disc type electric machine controller, described dish
Formula motor and described planetary reduction gear are sequentially distributed at described first jack shaft.
Preferably, described drive shaft is two right, two described drive shaft is distributed in respectively described electric automobile propons and
Back axle；Described propons is connected with regeneration brake system with the one in described back axle.
Preferably, described electric automobile also includes the battery bag of air-conditioning assembly, described air-conditioning assembly and described electric automobile
Electrical connection.
Preferably, described disc type electric machine is single rotor list stator disc type motor, bimorph transducer single rotor disc type electric machine, birotor
Single stator disc type motor, surface-mount type disc type electric machine or built-in disc type electric machine.
Preferably, described disc type electric machine controller is circular sleeve structure, and is sheathed on described first jack shaft；Institute
State disc type electric machine controller to be connected with described battery bag, for the DC inverter of the offer of described battery bag is become alternating current,
To control the work of described disc type electric machine.
Preferably, described disc type electric machine controller also includes fault detection module, described fault detection module and described dish
Formula motor is connected, for the fault-signal of described disc type electric machine feeds back to the processing unit of described disc type electric machine controller.
Preferably, brake position sensor, accelerator pedal position sensor and speed probe are also included；Described brake position
Put sensor, described accelerator pedal position sensor and described speed probe all with the entire car controller of described electric automobile
ECU is connected.
In technique scheme, it is axial that electric automobile disclosed by the invention makes full use of disc type electric machine, planetary reduction gear
The advantage that size is short, output torque is big, is placed in (phase in drive shaft arranged in pairs by disc type electric machine, planetary reduction gear, differential mechanism
When in driving half-bridge).For traditional motor combines ladder parallel shaft (speed) reducer compound mode, can effectively save
Space, chassis, other ingredients of the electric automobiles such as the convenient battery bag arranging more capacity, can improve the row of electric automobile
Sail mileage, reduce vehicle's center of gravity, improve riding stability.It addition, relative to the electric automobile of In-wheel motor driving, the present invention carries
The electric automobile of confession advantageously reduces the following quality of bearing spring, especially reduces the quality of tire part.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only described in the present invention
A little embodiments, for those of ordinary skill in the art, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 and Fig. 5 is two kinds of the mechanical differential four-wheel pure driven by power electric automobile that the embodiment of the present invention provides respectively
Structural representation；
Fig. 2 is the structural representation of the differential-speed dynamic coupling unit that the embodiment of the present invention provides；
Fig. 3 is the structural representation of the mechanical differential trailing wheel driven by power electric automobile that the embodiment of the present invention provides；
Fig. 4 is the structural representation of the mechanical differential front-wheel driven by power electric automobile that the embodiment of the present invention provides；
Fig. 6 is pure electric automobile Electric control loop diagram of the present invention.
Fig. 7 is a schematic diagram closing discharge loop in the present invention.
Fig. 8 is another schematic diagram closing discharge loop in the present invention.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with accompanying drawing to this
Bright it is further detailed.
The embodiment of the present invention provides a kind of pure power-actuated electric automobile of mechanical differential.The pure electricity of mechanical differential provided
Power-actuated electric automobile can pass through four-wheel drive (as shown in Figure 1), it is also possible to by rear wheel drive (as shown in Figure 3), also
Front-wheel drive (as shown in Figure 4) can be passed through.
Refer to Fig. 1-5, the pure power-actuated electric automobile of mechanical differential that the present embodiment provides includes being distributed in pairs
Drive shaft, in pairs the drive shaft of distribution left side gear D1 and right side gear D2 with differential mechanism 17F respectively is in transmission connection.
It should be noted that the driving structure of the electric automobile provided in the application is symmetrical structure, say, that
Realize differential with the drive mechanism of a pair by differential mechanism 17F to connect, also the most symmetrical centered by differential mechanism 17F.
Drive shaft includes the first jack shaft S1 and the second jack shaft 5LF being sequentially connected with, away from differential mechanism 17F's
Direction, the first jack shaft S1 and the second jack shaft 5LF transmission successively are connected, say, that the one of the first jack shaft S1
End is connected with left side gear D1, and the other end and the second jack shaft 5LF are connected, and the rotation of the first jack shaft S1 can drive second
Jack shaft 5LF rotates, and the wheel 1LF of electric automobile is arranged on the end of the second jack shaft 5LF, the first jack shaft S1's
Rotate and eventually rotated by the second jack shaft 5LF final driven wheel 1LF.
In the present embodiment, be provided with at wheel 1LF brake disc 2LF, the second jack shaft 5LF by spring bearing 3LF with
The vehicle frame of electric automobile forms revolute pair.First jack shaft S1 and the second jack shaft 5LF can pass through universal joint 6LF transmission
Connect.Can also realize being in transmission connection by universal joint 4LF between second jack shaft 5LF and the wheel shaft of wheel 1LF.Preferably
, universal joint 6LF and universal joint 4LF can be Hooke's joint, it is also possible to be rzeppa joint.Certainly, universal joint 6LF
The connection with the first jack shaft S1 can also be realized by a pair gear pair or a pair ring flange 9LF.Connected by gear pair
Then allow the first jack shaft S1 the most coaxial with the wheel shaft of wheel 1LF.It addition, the first jack shaft S1 or the second jack shaft
5LF can form revolute pair by the vehicle frame of spring bearing 7LF with electric automobile, and then reaches the mesh of stable support power transmission shaft
's.
Disc type electric machine controller 10LF, disc type electric machine 11LF and planetary reduction gear it is disposed with on first jack shaft S1
12LF；As it is shown in figure 1, at the direction of left side gear D1 near differential mechanism 17F, disc type electric machine controller 10LF, disc type electric machine
11LF and planetary reduction gear 12LF is sequentially distributed at the first jack shaft S1.Disc type electric machine controller 10LF is used for controlling disc type electricity
Machine 11LF works, the such as unlatching of disc type electric machine 11LF, closedown, rotating speed size etc..Disc type electric machine 11LF and planetary reduction gear
12LF is in transmission connection, and the rotating speed of disc type electric machine 11LF output passes to the first jack shaft after planetary reduction gear 12LF slows down
S1, is finally passed to wheel 1LF by the first jack shaft S1 by the second jack shaft 5LF.
In the present embodiment, paired drive shaft is provided with planetary reduction gear, the planetary reduction gear of the first jack shaft S1
The planet carrier PL4 of device 12LF can be permissible with the coupling of the planet carrier PR4 of the planetary reduction gear 12RF on the first jack shaft S2
Realize being connected by the way of fixing with the housing D6 of differential mechanism 17F.
In electric automobile disclosed in the present embodiment, the first jack shaft S1 and the second jack shaft 5LF connects, and passes through dish
The driving of formula motor 11LF realizes wheel 1LF and moves, and whole drive shaft uses the structure design of independent suspension.Due to drive mechanism
For symmetrical mechanism, the angle between the first jack shaft S1 and the second jack shaft 5LF and the second jack shaft 5LF and wheel
Angle between the wheel shaft of 1LF is all with the centrosymmetry of whole electric automobile.This kind of symmetrical structure is able to ensure that, electric automobile exists
During operation, the moment of torsion of two wheels of same Time Transmission to paired distribution is identical, and then can reduce torsion
To the problem that distribution is uneven.
Refer to Fig. 1, in concrete driving process, cross-tie 28 can be passed through between two wheels of distribution in pairs
Linkage, cross-tie 28 can pass through rack and pinion drive mechanism 29, by means of electronics power-assisted or connect power-assisted, it is achieved is distributed in pairs
The turning to of two wheels.
Incorporated by reference to Fig. 2, in the present embodiment, differential mechanism 17F can be by forward side gear D3, rear side gear D4, gear shaft D5, a left side
Side gear D1, right side gear D2, differential casing D6 form.Forward side gear D3, rear side gear D4, left side gear D1 and right side tooth
Wheel D2 surrounds and engages each other, and four is angular wheel.Wherein, forward side gear D3 and rear side gear D4 can be planetary gear, tooth
Wheel shaft D5 phase should be planetary gear axle.Above-mentioned differential mechanism 17F is capable of electric automobile when being in straight travel state, keeps a left side
Wheel and right wheel are in same rotational speed, when electric automobile is in turning driving state, it is allowed to right wheel and right wheel are with different rotating speeds
Rotate, i.e. realize differential and rotate.
Referring again to Fig. 2, in the present embodiment, planetary reduction gear 12LF can include sun gear PL1, planetary gear PL2, tooth
Circle PL3 and planet carrier PL4.Above-mentioned planetary reduction gear 12LF has bigger speed reducing ratio, it is possible to reduce drive shaft the most significantly
Axial dimension.The present embodiment, the rotating speed output shaft of disc type electric machine 11LF can lead to the sun gear PL1 of planetary reduction gear 12LF
Crossing flange to realize connecting, finally the rotating speed to the output shaft of disc type electric machine 11LF is implemented to slow down, and finally realizes the deceleration of wheel 1LF
Increase and turn round.
Disc type electric machine 11LF is a kind of AC permanent magnet synchronous motor, and axial dimension is less.In the present embodiment, disc type electric machine
11LF can be single rotor list stator disc type motor, bimorph transducer single rotor disc type electric machine, double rotor single stator disc type motor, Surface Mount
Formula disc type electric machine, built-in disc type electric machine etc..
In the present embodiment, when electric automobile is four-wheel drive, it is positioned at two disc type electric machines (disc type electricity of back axle or propons
Machine 11LR, disc type electric machine 11RR) both can make motor, it is also possible to as electromotor.Electric automobile is in the process of downhill running
In, driver can put braking, can be in idle running by mode of operation controller and regeneration brake system 27L
Two disc type electric machines switch to power generation mode, and regeneration brake system 27L realizes the recycling of braking energy, in such cases,
In electric automobile, the disc type electric machine in two drive mechanisms in front can normally work, the dish of two drive mechanisms at rear
Formula motor can start to reclaim braking energy as electromotor under the control of regeneration brake system 27L.
The electric automobile that the present embodiment provides is powered by battery bag 24, and battery bag 24 is that the power of whole electric automobile comes
Source, the most chargeable accumulator battery.The electric automobile that the present embodiment provides includes air-conditioning assembly, air-conditioning assembly and battery bag
24 electrical connections, realize refrigeration and heat-production functions by the power supply of battery bag 24.As it is shown in figure 1, air-conditioning assembly includes condenser 13, steams
Sending out device 14, compressor 15 and compressor electric motor controller 16, above-mentioned all parts is connected to form Air-conditioning Cycle, reaches to improve electronic
The purpose of automotive interior temperature environment.Concrete, condenser 13, compressor 15, vaporizer 14 and compressor electric motor controller 16
Can be arranged in the cabin of electric automobile, be similar to the engine nacelle of orthodox car.
Owing to battery bag 24 is the power resources of whole electric automobile, in order to be thought of as each electricity consumption part of electric automobile more
For powering easily, battery bag 24 is preferably placed between front-rear axle, i.e. between front wheels and rear wheels.Certainly, battery bag 24 also may be used
Think multiple, match with each wheel respectively, and then power for each disc type electric machine.
In the present embodiment, disc type electric machine controller 10LF could be arranged to circular sleeve structure, disc type electric machine controller
10LF is set on the first jack shaft；Disc type electric machine controller 10LF is connected with battery bag, for provided by battery bag 24
DC current is reverse into alternating current, and then reaches to control disc type electric machine 11LF work, such as, control disc type electric machine 11LF and rotate forward, instead
Turn, accelerate, slow down, start or stop.Disc type electric machine controller 10LF can be with the entire car controller ECU25 phase of electric automobile
Even, the output electric current of battery bag 24 can be controlled according to the control signal of entire car controller ECU25.Preferably, disc type electric machine control
Device 10LF processed can include that fault detection module, fault detection module are connected with disc type electric machine 11LF, for by disc type electric machine
The fault-signal of 11LF feeds back to the processing unit of disc type electric machine controller 10LF, through the process of disc type electric machine controller 10LF
After cell processing, result can be fed back to entire car controller ECU25, to facilitate driver to make according to troubleshooting result
React timely.
In the electric automobile that the present embodiment provides, the anti-drive end of disc type electric machine 11LF can arrange speed probe
8LF, speed probe 8LF can be rotary transformer or photoelectric encoder, for gathering the rotor ML2 of disc type electric machine 11LF
The positional information of (forming the bearing ML3 of revolute pair between corresponding stator ML1, stator ML1 and the first jack shaft S1).Turn
Speed sensor 8LF can be connected with entire car controller ECU25, it is also possible to by disc type electric machine controller 10LF and entire car controller
ECU25 is connected.
The brake pedal 20 of electric automobile can also be correspondingly arranged brake position sensor 21, and brake position sensor 21 is used
In the position signalling gathering brake pedal 20.Brake position sensor 21 is connected with entire car controller ECU25, for brake being stepped on
The position signalling of plate 20 is sent to overall controller ECU25.Entire car controller ECU25 can believe according to the position of brake pedal 20
Number use different mode of braking.Put in a flash gently, two disc type electricity in the drive shaft of the differential mechanism 17F both sides controlling back axle
Machine (disc type electric machine 11LR, disc type electric machine 11RR), by respectively by regeneration brake system (regeneration brake system 27L, regeneration system
Dynamic system 27R) energy feeding braking generating, it is achieved energy recovery function, charges to battery bag 24.When the degree of depth touches on the brake, brake
Control by the braking torque distribution module in entire car controller ECU25, pass to brake controller 26, assignment system power
Square, controls to clamp the dynamics of each brake disc (brake disc 2LF, brake disc 2RF, brake disc 2LR and brake disc 2RR), it is achieved machine
Tool skidding, reduces speed, it is to avoid skid, and reduces the abrasion of tire.
The electric automobile that the present embodiment provides can also include accelerator pedal position sensor 23, and accelerator pedal position senses
Device 23 is for gathering the position signalling of gas pedal 22, and the position signalling of gas pedal 22 is sent to entire car controller
This position signalling can be converted into torque signals by ECU25, entire car controller ECU25, is sent to disc type electric machine controller 10LF,
Disc type electric machine controller 10LF can be carried out by battery bag 24 according to the AC/DC electric current needed for torque signals calculating accordingly
The electric discharge of electricity, is eventually fed each disc type electric machine, and then realizes the acceleration of electric automobile.
The electric automobile that the present embodiment provides can also include steering wheel rotation angle sensor 19, steering wheel rotational angle
Sensor 19 is for detecting the rotational angle of steering wheel 18, and steering wheel rotation angle sensor 19 can also be with entire car controller
ECU25 is connected, for the rotational angle to entire car controller ECU25 feedback steering wheel 18, for driver with reference to make corresponding tune
Whole.
Refer to accompanying drawing 5, each electronic drive unit in the disclosed electric automobile of this enforcement can comprise battery bag
24, main relay protection circuit 30, boosting DC/DC voltage conversion circuit 31, discharge circuit 32, thin-film capacitor 42, inverter 33,
Performance element (disc type electric machine 11) and blood pressure lowering DC/DC voltage conversion circuit 51, motor drive controller 55, entire car controller
ECU25。
Disc type electric machine 11 (i.e. disc type electric machine 11LF, disc type electric machine 11RF, disc type electric machine 11LR or disc type electric machine 11RR)
Operating is powered by battery bag 24, through main relay 34, pre-charge-relay 35 protection circuit, then passes through boosting DC/DC electricity
Pressure translation circuit 31 boosts to battery bag 24, to reduce line loss and to expand machinery external characteristics interval, through discharge circuit 32
Charge to thin-film capacitor 42, through inverter 33, inverse of the DC into AC, supply electricity to disc type electric machine 11.Disc type electric machine
Controller 10LF produces 6 tunnel PWM ripples, and for controlling 6 IGBT switching tubes of 3 brachium pontis of inverter 33, (i.e. IGBT opens
Close pipe 43, IGBT switching tube 44, IGBT switching tube 45, IGBT switching tube 46, IGBT switching tube 47, IGBT switching tube 48) logical
Disconnected.Vehicle speed-up /-down command is converted into current order, passes to disc type electric machine controller 10LF, passed by electric current simultaneously
Sensor 49, current sensor 50 obtains current feedback values, simultaneously by rotary transformer or photoelectric encoder (speed probe
8LF) obtaining rotor position information, and seek difference with initial value contrast, voltage sensor gathers input voltage (the bus electricity of inverter
Pressure), through vector control algorithm, go out the input voltage needed for disc type electric machine 11 by PARK conversion with CLARK transformation calculations,
Reach intended rotating speed eventually.Meanwhile, the high pressure of battery bag 24 passes through blood pressure lowering DC/DC voltage conversion circuit 51, to little storage battery 52, key
The accessory power supplys such as spoon switch 53, car light are powered.Entire car controller ECU25 coordinates the action of motor drive controller 55.Such as Fig. 1,
Shown in Fig. 6.
Filter capacitor 36, IGBT37, IGBT39, reactor 38 collectively constitute DC/DC voltage conversion circuit 31.Work as IGBT41
Receiving motor drive controller 55 signal when connecting, thin-film capacitor 42, resistance 40, the switching transistor of IGBT41 form wherein one
Bar closes discharge loop, and thin-film capacitor 42 discharges, resistance 40 discharge with form of heat, as shown in Figure 7.Another closes electric discharge
Loop, is made up of filter capacitor 36, reactor 38, the fly-wheel diode of IGBT39, resistance 40, the switching transistor of IGBT41,
Filter capacitor 36 discharges, and through the resistance 40 in this loop, dissipates with form of heat, as shown in Figure 8.
Thin-film capacitor 42, filter capacitor 36 opening and closing through public discharge circuit 32, by motor drive control
Device 55 processed controls.Voltage sensor 54 gathers the DC bus-bar voltage of inverter 33 input, is passed to by this voltage signal
Motor drive controller 55.
Electric automobile disclosed by the invention makes full use of disc type electric machine, planetary reduction gear axial dimension is short, output torque is big
Advantage, disc type electric machine, planetary reduction gear, differential mechanism are placed in drive shaft arranged in pairs (be equivalent to drive half-bridge).Phase
For traditional motor combines ladder parallel shaft (speed) reducer compound mode, can effectively save space, chassis, convenient layout
Other ingredients of the electric automobiles such as the battery bag of more capacity, can improve the distance travelled of electric automobile, reduce vehicle weight
The heart, improves riding stability.It addition, relative to the electric automobile of In-wheel motor driving, the electric automobile that the present invention provides is favourable
In reducing the following quality of bearing spring, especially reduce the quality of tire part.
As it is shown in figure 5, electric automobile disclosed in the present embodiment can be the mechanical differential including many friction plate clutch
Coupling pure power-actuated electric automobile, many friction plate clutch (many friction plate clutch 56LF, many friction disk types from
Clutch 56RF, many friction plate clutch 56LR, many friction plate clutch 56RR) be positioned at planetary reduction gear and differential mechanism it
Between, for realizing the planet carrier of planetary reduction gear and the combination of differential mechanism axle housing power and separating.Many friction plate clutch can
With according to electric automobile during traveling power demand, torque demand, separate or combine multidisc clutch, in acceleration, climbing operating mode,
In conjunction with multidisc clutch, being used for transmitting more high pulling torque, high-speed working condition, separate multidisc clutch, small-power is run, and improves continuous
Sail mileage, improve the reliability of whole system simultaneously, belong to Redundancy Design.Concrete, electric automobile can be many friction plates
Rear wheel drive mechanical differential coupling pure electric automobile, the front-wheel drive mechanical differential coupling of many friction plate clutch of formula clutch
The 4 wheel driven closing pure electric automobile or many friction plate clutch moves mechanical differential coupling pure electric automobile, as shown in Figure 5..
Such as Fig. 1,3 and 4, it should be noted that wheel 1RF, brake disc 2RF, spring bearing 3RF, universal joint 4RF, second
Jack shaft 5RF, universal joint 6RF, spring bearing 7RF, speed probe 8RF, ring flange 9RF, disc type electric machine controller 10RF,
Disc type electric machine 11RF, planetary reduction gear 12RF, differential mechanism 17R respectively with wheel 1LF, brake disc 2LF, spring bearing 3LF, universal
Joint 4LF, the second jack shaft 5LF, universal joint 6LF, spring bearing 7LF, speed probe 8LF, ring flange 9LF, disc type electric machine
Controller 10LF, disc type electric machine 11LF, planetary reduction gear 12LF, differential mechanism 17F one_to_one corresponding, and function is identical, specifically please join
Examine the description to all parts in foregoing embodiments.
In like manner, wheel 1LR, brake disc 2LR, spring bearing 3LR, universal joint 4LR, the second jack shaft 5LR, universal joint
6LR, spring bearing 7LR, speed probe 8LR, ring flange 9LR, disc type electric machine controller 10LR, disc type electric machine 11LR, planet
Decelerator 12LR respectively with wheel 1LF, brake disc 2LF, spring bearing 3LF, universal joint 4LF, the second jack shaft 5LF, universal
Joint 6LF, spring bearing 7LF, speed probe 8LF, ring flange 9LF, disc type electric machine controller 10LF, disc type electric machine 11LF, OK
Star decelerator 12LF one_to_one corresponding, and function is identical, specifically refer to the description to all parts in foregoing embodiments.
In like manner, wheel 1RR, brake disc 2RR, spring bearing 3RR, universal joint 4RR, the second jack shaft 5RR, universal joint
6RR, spring bearing 7RR, speed probe 8RR, ring flange 9RR, disc type electric machine controller 10RR, disc type electric machine 11RR, planet
Decelerator 12RR respectively with wheel 1LF, brake disc 2LF, spring bearing 3LF, universal joint 4LF, the second jack shaft 5LF, universal
Joint 6LF, spring bearing 7LF, speed probe 8LF, ring flange 9LF, disc type electric machine controller 10LF, disc type electric machine 11LF, OK
Star decelerator 12LF one_to_one corresponding, and function is identical, specifically refer to the description to all parts in foregoing embodiments.
In the application, the first jack shaft S2, stator MR1, rotor MR2, bearing MR3, sun gear PR1, planetary gear PR2,
Gear ring PR3, planet carrier PR4 respectively with the first jack shaft S1, stator ML1, rotor ML2, bearing ML3, sun gear PL1, planet
Wheel PL2, gear ring PL3, planet carrier PL4 one_to_one corresponding, and function is identical, specifically refer in foregoing embodiments all parts
Describe.
By the way of explanation, only describe some one exemplary embodiment of the present invention above, undoubtedly, for ability
The those of ordinary skill in territory, in the case of without departing from the spirit and scope of the present invention, can be by various different modes to institute
The embodiment described is modified.Therefore, above-mentioned accompanying drawing and description are the most illustrative, should not be construed as the present invention
The restriction of claims.
Claims (9)
1. the pure power-actuated electric automobile of mechanical differential, it is characterised in that include the drive shaft being distributed in pairs, divide in pairs
The described drive shaft of cloth left side gear and right side gear with described differential mechanism respectively is in transmission connection；Described drive shaft includes successively
The first jack shaft connected and the second jack shaft；In the direction away from described differential mechanism, described first jack shaft and
The transmission successively of two jack shafts is connected；It is disposed with disc type electric machine controller, disc type electric machine and planet on described first jack shaft
Decelerator；Described disc type electric machine controller is connected with described disc type electric machine, is used for controlling described disc type electric machine；Described disc type electric machine
Being in transmission connection with described planetary reduction gear, described planetary reduction gear passes through described first jack shaft and described second jack shaft
Rotate；The end of described second jack shaft is connected with the wheel drive of described electric automobile.
Electric automobile the most according to claim 1, it is characterised in that the institute in the described drive shaft of described differential mechanism both sides
The housing of the planet carrier and described differential mechanism of stating planetary reduction gear is fixedly linked.
Electric automobile the most according to claim 1, it is characterised in that in the described left side gear near described differential mechanism
Direction, described disc type electric machine controller, described disc type electric machine and described planetary reduction gear are sequentially distributed and drive half described first
Axle.
Electric automobile the most according to claim 1, it is characterised in that described drive shaft is two right, and two to described drive shaft
It is distributed in propons and the back axle of described electric automobile respectively；One in described propons and described back axle and regeneration brake system phase
Even.
Electric automobile the most according to claim 1, it is characterised in that described electric automobile also includes air-conditioning assembly, described
Air-conditioning assembly electrically connects with the battery bag of described electric automobile.
Electric automobile the most according to claim 1, it is characterised in that described disc type electric machine is single rotor list stator disc type electricity
Machine, bimorph transducer single rotor disc type electric machine, double rotor single stator disc type motor, surface-mount type disc type electric machine or built-in disc type electric machine.
Electric automobile the most according to claim 1, it is characterised in that described disc type electric machine controller is circular sleeve knot
Structure, and be sheathed on described first jack shaft；Described disc type electric machine controller is connected with described battery bag, for by described electricity
The DC inverter of the offer of Chi Bao becomes alternating current, to control the work of described disc type electric machine.
Electric automobile the most according to claim 7, it is characterised in that described disc type electric machine controller also includes fault detect
Module, described fault detection module is connected with described disc type electric machine, for the fault-signal of described disc type electric machine is fed back to institute
State the processing unit of disc type electric machine controller.
9. according to described electric automobile arbitrary in claim 1-8, it is characterised in that also include brake position sensor, oil
Door pedal position sensor and speed probe；Described brake position sensor, described accelerator pedal position sensor are with described
Speed probe is all connected with the entire car controller ECU of described electric automobile.
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| CN201610344180.4A CN106042945B (en) | 2016-05-23 | 2016-05-23 | A kind of electric car that mechanical differential is driven by pure electric power |
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| CN201610344180.4A CN106042945B (en) | 2016-05-23 | 2016-05-23 | A kind of electric car that mechanical differential is driven by pure electric power |
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| CN108215765A (en) * | 2018-01-15 | 2018-06-29 | 重庆交通大学 | For the electromechanical magnetic coupling drive axle of differential cascade of hybrid vehicle |
| CN110576706A (en) * | 2018-06-08 | 2019-12-17 | 郑州宇通客车股份有限公司 | Vehicle motion state control method and vehicle |
| CN110733329A (en) * | 2018-07-19 | 2020-01-31 | 郑州宇通客车股份有限公司 | synchronous asynchronous motor hybrid power system and vehicle |
| CN114312143A (en) * | 2021-12-31 | 2022-04-12 | 佛山仙湖实验室 | Coaxial double-motor electric drive axle and gear control method |
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| CN114312143B (en) * | 2021-12-31 | 2024-02-23 | 佛山仙湖实验室 | Coaxial double-motor electric drive axle and gear control method |
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|---|---|
| CN106042945B (en) | 2018-11-23 |
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