CN102180103A - Driving system for electric vehicle - Google Patents
Driving system for electric vehicle Download PDFInfo
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- CN102180103A CN102180103A CN2011100974043A CN201110097404A CN102180103A CN 102180103 A CN102180103 A CN 102180103A CN 2011100974043 A CN2011100974043 A CN 2011100974043A CN 201110097404 A CN201110097404 A CN 201110097404A CN 102180103 A CN102180103 A CN 102180103A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention relates to a driving system for an electric vehicle. A clutch pedal is eliminated, and only an accelerator pedal and a brake pedal are kept; a clutch control unit controls a clutch driving motor to disengage a clutch under the condition that gear shifting is needed; the clutch driving motor is a linear motor (or a rotary motor and a cam mechanism), and a complicated speed-reducing torque-increasing device and a transmission mechanism in the conventional clutch operating mechanism are not needed; an automatic transmission control unit sends an instruction according to a vehicle automatic gear shifting rule, and a gear selecting and shifting motor drives a gear selecting and shifting execution mechanism to finish a gear shifting action; the clutch control unit controls the clutch driving motor to move in an opposite direction, so that the clutch is engaged, the power of a vehicle driving motor is transferred through a gearbox, and an automatic speed change function is realized; and the vehicle driving motor is only simply controlled in the process, so that the requirement on the manufacturing technology of the driving motor is reduced.
Description
Technical field
The invention belongs to the electronlmobil field, be specifically related to a kind of drive system of electronlmobil.
Background technology
In recent years, because the growing tension of global energy and the continuous deterioration of environment, electronlmobils efficient, energy-saving and environmental protection are the trend of accelerated development.
In order to guarantee that electronlmobil handles simple and conveniently, have good rideability, alerting ability, stability and traveling comfort, electronlmobil should have and travels with it and power drive system that operating needs adapts.
In current electronlmobil, adopt single motor individual drive form mostly, can reduce corresponding quality and cost to greatest extent like this, but such system has relatively high expectations for coupling between electrical motor, power-transfer clutch and the change-speed box and control.For related requests such as the dynamic property that satisfies electric automobile whole, economy, traveling comforts, the speed change system of research and development function admirable seems particularly important.
In automobile power drive technology field, can eliminate frequent starting, gearshift, the automatic mechanical transmission that alleviates the manipulation intensity of chaufeur is more and more used.Mechanical automatic speed-changing system manipulation mechanism pattern is a lot, especially based on hydraulic control mechanism.The operating control that with the motor is actuating unit in recent years is because stable performance, easy to maintenance, compact conformation, reliability height, speed of response and control accuracy advantages of higher more and more come into one's own.
Specifically, the characteristics of clutch operating are to guarantee the velocity of separation of separating fast, otherwise can increase the wearing and tearing of power-transfer clutch, and in the power-transfer clutch combination speed will be slowly many, steady with this combination that guarantees power-transfer clutch.But in the automotive field, great majority adopt automatically controlled-hydraulic control mechanism now, and mechanism is comparatively complicated, and maintenance difficulty is big, speed of response is slow, control accuracy is lower.And linear electric motors are a kind ofly electric energy is directly changed into straight-line motion and does not need novel actuating device by any buffering mechanism.It is equivalent to an independently driver element, has advantages such as no touch, no wearing and tearing, low noise, high precision, is to drive reciprocating desirable selection of power-transfer clutch.
Automatic machincal transmission is to increase fool proof drive on the basis of mechanical transmission, and because of its cost is lower, care and maintenance is easy, and the efficient height helps energy-saving and emission-reduction, and boundless application prospect is arranged.
Application number is that 200920130219 Chinese patent discloses a kind of gear shift power compensation device, it is characterized in that: described gear shift power compensation device comprises propulsion source, double-clutch, automatic machincal transmission, described automatic machincal transmission is provided with height, the low-grade location gear, power-transfer clutch, quill shaft, be positioned at the mandrel of quill shaft, and by high, the output shaft that the low-grade location gear matches with described quill shaft, described high tap position gear sky is enclosed within on the quill shaft, described propulsion source is connected on the quill shaft of described automatic machincal transmission by double-clutch, the input end of described power-transfer clutch links to each other with double-clutch by described mandrel, mouth is connected with the high tap position gear of described automatic machincal transmission, this application adopts double-clutch, complex structure.
In the control of automatic speed-changing system because the polytropy of clutch state, especially with the difficult point that is controlled to be of power-transfer clutch, thus adopt can self study, self-compensating control policy adapts to these variations, seems particularly important.
Summary of the invention
The objective of the invention is to: provide a kind of drive system of electric motor vehicle assembly, to satisfy car load dynamic property, economy, traveling comfort and control comfort thereof, related request such as safe and reliable.
Described drive system of electric motor vehicle mainly is made up of drive motor and controller, self-acting clutch and automatic machincal transmission (AMT), and wherein self-acting clutch comprises power-transfer clutch and actuating device and optional mechanical booster mechanism thereof again; Automatic machincal transmission comprises mechanical transmission, block selecting motor and steering unit, shift motor and steering unit thereof again, the A end of described self-acting clutch links to each other with the vehicle driving motor output shaft, secondary part links to each other with the input shaft of automatic machincal transmission, described self-acting clutch adopts the dry type diaphragm-spring clutch, on the basis that does not change power-transfer clutch basic structure, clutch engagement is controlled in real time with displacement that separates and speed; Described dry type diaphragm-spring clutch adds cam mechanism by linear electric motors or rotating machine and drives its direct or indirect joint and separate; Described automatic machincal transmission adopts fixed axis gear formula change-speed box, concrete drive mechanism mainly comprises input shaft assembly, countershaft assembly, output shaft assembly three parts, it is characterized in that, described controller can be to the CAN network issued information, comprise voltage, electric current, moment of torsion, rotating speed, motor temperature, controller temperature, motor operating state, controller running state, pump power running state, failure code, electric machine controller is reserved detection port, with convenient debugging and maintenance; Described drive motor and controling appliance power backup gas shiled function; motor and controller possess under-voltage protection function; when input voltage is lower than 290VDC; the electric machine controller protection is shut down; motor and controller possess over-voltage protecting function; at input voltage or brake voltage during greater than 450VDC; the electric machine controller protection is shut down; motor and controller possess overcurrent and short-circuit protection function; motor and controller possess heat protection function, when motor and controller generation electric protection, except that water pump remains in operation the 1min; other stops at once, and electric machine controller generation electric protection can automatically reply.
Described primary shaft is the input shaft assembly, mainly is made up of a constant mesh gear making one with primary shaft; Described countershaft assembly mainly is made up of tween drive shaft N retaining constant mesh gear (N is any natural number) and the tween drive shaft constant mesh gear of making one with tween drive shaft; Described second axle assembly mainly is made up of output shaft and empty cover two N retaining gears and synchro thereon, as shown in Figure 1.
The bit selecting of described automatic machincal transmission, gearshift actuating unit adopt DC machine to drive, and described motor provides electric energy by Vehicular accumulator cell.
Be provided with the braking mode sensor in the described system, be used for the perception braking information; Displacement pickup is used to characterize the degree of clutch engagement, separation; Tachogen comprises power-transfer clutch input, output shaft sensor and car speed sensor, is used for the acquisition controlling parameter; Shift sensor is used to pass on gear shifting signal.
What be provided with at the meter panel of motor vehicle place mainly comprises forward gear switch, the switch that reverses gear, braking indicator lamp, reversing indicator lamp, gear demonstration, the warning of mandatory protection pattern, fault alarm, wrong operation alarm, overload alarm.
This system's control realizes having adopted the layer-stepping control policy, and distributed structure realizes, and it is incorporated controller local area network (CAN).
Preferably, above-mentioned control policy is divided into two-layer, and the upper strata control policy draws the clutch engagement rule by judging driver intention, detecting external condition and vehicle operational mode; Lower floor's control policy promptly is that the control clutch actuating unit is followed the tracks of the clutch engagement rule.
Described self-acting clutch has adopted self study compensate control strategy, and fuzzy control and pid control algorithm are controlled with displacement that separates and speed in real time to clutch engagement.
The control method of described drive system of electric motor vehicle is, during vehicle start, power-transfer clutch is in full engagement state all the time, vehicle is started to walk by the speed characteristic of self drive motor, the decision condition of described vehicle start state is that to be in forward gear or backward gear state and the speed of a motor vehicle be zero to vehicle, during the vehicle acceleration and deceleration, it is the chaufeur bend the throttle, according to schedule, after reaching shifting points, its the rapid separation of clutch control unit controls, this moment, the vehicular drive electric machine controller carried out speed governing according to the rotating speed of target that the AMT control unit sends, and rotating speed of target is to be calculated according to the speed of a motor vehicle and target gear by the AMT control unit; Meanwhile, after the AMT control unit received the feedback of status of disengaging of clutch, the control change-speed box was finished and is plucked the retaining action, and bit selecting is handled, and carries out gear shift operation immediately; After finishing shift control, the AMT control unit sends the free schema request to the drive motor control unit, and this moment, no matter whether the speed governing of drive motor reached rotating speed of target, all will force the freedom of entry pattern; After confirming that motor is in free schema, AMT control unit transmission request splice information is given the clutch control unit, treat clutch engagement after, send the torque mode request to the control motor, motor reverts to normal moment output mode, enters the cruising state.
Described self shifter rule adopts three parameter schedules based on acceleration pedal aperture, the speed of a motor vehicle and acceleration/accel.
During the vehicle acceleration and deceleration, follow the principle that adds downshift step by step.
The engaging speed of power-transfer clutch is to determine by the speed discrepancy of driving and driven part, and it is big more to follow speed discrepancy, and engaging speed is slow more, and speed discrepancy is more little, the principle that engaging speed is fast more.
The clutch engagement amount is to select for use the speed discrepancy of the rotating speed of secondary part and driving and driven part as controlled variable, main points are according to speed discrepancy and pace of change thereof, timely and the suitable adjustment degree of engagement by control algorithm, it is approaching to make that driving and driven part is able to utmost dispatch, but must not too fastly surpass the speed discrepancy increment of setting threshold values.
Vehicle is followed the braking principle of priority, has only when braking is removed, and automatic speed-changing system just can be shifted gears according to the self shifter rule, the gearshift that allows to bypass the immediate leadership of this operating mode.
During maloperation, at first refer to vehicle driving motor also when forward travel state, the error starting switch that reverses gear, this moment, power-transfer clutch should separate rapidly immediately, reported to the police immediately; Secondly, when chaufeur while bend the throttle and brake pedal, think that speed-slackening signal is effective.
During overload, power-transfer clutch should separate rapidly, and the maximum torque that the limiting drive train system is born prevents the driving system overload.
Described self-acting clutch is by being contained in the angular-motion transducer signal on the acceleration pedal turning cylinder, controlling its state of living in, making electronlmobil select proper speed to travel as required.
When any control unit in drive motor control unit, clutch control unit, the AMT control unit or control area net (CAN) can't normal operation; vehicle enters the mandatory protection pattern and reports to the police; this moment, vehicle can only travel with the current driving state; or stop, do not allow to carry out gear shift operation.
Description of drawings
Fig. 1 is the structure principle chart of drive system of electric motor vehicle preferred embodiment of the present invention;
Fig. 2 is the structural representation of drive system of electric motor vehicle preferred embodiment of the present invention;
Fig. 3 is the fundamental diagram of drive system of electric motor vehicle preferred embodiment of the present invention;
Fig. 4 is the distributed network electronic system scheme drawing of drive system of electric motor vehicle preferred embodiment of the present invention;
Fig. 5 is the normal operation control flow chart of drive system of electric motor vehicle preferred embodiment of the present invention.
Among the figure:
1. drive motor, 2. self-acting clutch, 3. primary shaft, 4. constant mesh gear, 5. two first gears, 6. two second gears, 7. two three retaining gears, 8. second, 9. tween drive shaft, 10. tween drive shaft three retaining constant mesh gears, 11. tween drive shafts, two retaining constant mesh gears, 12. tween drive shafts, one retaining constant mesh gear, 13. tween drive shaft constant mesh gears, 14, linear electric motors, 15, automatic machincal transmission (AMT).
The specific embodiment
Describe the present invention below in conjunction with accompanying drawing.
With 3 shift transmissions is that example describes, with reference to figure 1, Fig. 2, this drive system of electric motor vehicle mainly is made up of drive motor 1 and controller, self-acting clutch 2 and automatic machincal transmission 15, and wherein self-acting clutch 2 comprises power-transfer clutch and actuating device and optional mechanical booster mechanism thereof again; Automatic machincal transmission comprises mechanical transmission, block selecting motor and steering unit, shift motor and steering unit thereof again; The A end of described self-acting clutch 2 links to each other with the vehicular drive motor output shaft, and secondary part links to each other with the input shaft of automatic machincal transmission; Described self-acting clutch 2 adopts the dry type diaphragm-spring clutch, on the basis that does not change power-transfer clutch basic structure, clutch engagement is controlled in real time with displacement that separates and speed, and simple in structure, cost is lower; Described dry type diaphragm-spring clutch by linear electric motors 14 drive it directly or indirectly (mainly referring to the mechanical type force-increasing mechanism) joint with separate; Described automatic machincal transmission adopts fixed axis gear formula change-speed box, and concrete drive mechanism mainly comprises gear box input axle assembly, countershaft assembly, output shaft assembly three parts; Described input shaft assembly mainly is made up of a constant mesh gear 4 making one with primary shaft 3; Described countershaft assembly mainly is made up of tween drive shaft three retaining constant mesh gears 10, tween drive shaft two retaining constant mesh gears 11, tween drive shaft one retaining constant mesh gear 12, the tween drive shaft constant mesh gear 13 of making one with tween drive shaft 9; Described output shaft assembly mainly is made up of thereon two three retaining gears 7 of output shaft and empty cover, two second gears 6, two one grade of gear 5,1 retaining synchros, three retaining synchros etc.; The bit selecting of described automatic machincal transmission, gearshift actuating unit adopt DC machine to drive, and use vehicle power to be propulsion source.Described electrical motor provides electric energy by Vehicular accumulator cell; Described Vehicular accumulator cell can be lithium iron phosphate dynamic battery, lead-acid battery, Ni-MH battery, zinc-air battery etc.
With reference to figure 3, Fig. 4, this system's control realizes having adopted the layer-stepping control policy, and distributed structure realizes, and it is incorporated controller local area network (CAN); Above-mentioned control policy is divided into two-layer, and the upper strata control policy draws the clutch engagement rule by judging driver intention, detecting external condition and vehicle operational mode; Lower floor's control policy promptly is that the control clutch actuating unit is followed the tracks of the clutch engagement rule.Described self-acting clutch has adopted self study compensate control strategy, and fuzzy control and pid control algorithm are controlled with displacement that separates and speed in real time to clutch engagement.
Electric machine controller is by CAN bus and entire car controller communication, and the instruction of response entire car controller.Motor and controller can be according to the acceleration pedal instruction runnings of entire car controller collection and transmission.When release the gas pedal, do not need electric machine controller electric braking voluntarily.From motor shaft extension end, motor acquiescence rotation direction is a conter clockwise, and when receiving the reverse gear instruction of entire car controller collection and transmission, from motor shaft extension end, motor must right-hand revolution.Motor and controller can be braked according to the braking instruction of entire car controller collection and transmission.After electric machine controller receives braking instruction, produce time dependent lock torque and inverse voltage, this inverse voltage must be less than 450V.
The type of cooling of motor and controller thereof is a water-cooled, carries cooling water pump and pump power.When cooling water pump only provides cooling for 30kw motor and controller thereof, by the running of motor controller controls water pump and radiator heat-dissipation fan.Provide a signal to electric machine controller by the expansion tank water level detector, when expansion tank was anhydrous, electric machine controller quit work.
Electric machine controller response entire car controller the power driving instruction falls, power is reduced to 15kw, torque drop to 60Nm.Electric machine controller can respond the cutoff command of entire car controller, and except that water pump remains in operation the 1min, other stops at once.Do not having under the prerequisite of bend the throttle, electric machine controller can respond the permanent rotation speed operation instruction of entire car controller, can be with the continuous running of 1500rpm rotating speed.
Electric machine controller should be able to comprise voltage, electric current, moment of torsion, rotating speed, motor temperature, controller temperature, motor operating state, controller running state, pump power running state, failure code etc. to the CAN network issued information.Electric machine controller is reserved detection port, with convenient debugging and maintenance.
Motor and controling appliance power backup gas shiled function.Motor and controller possess under-voltage protection function, and when input voltage was lower than 290VDC, the electric machine controller protection was shut down.Motor and controller possess over-voltage protecting function, and during greater than 450VDC, the electric machine controller protection is shut down at input voltage or brake voltage.Motor and controller must possess overcurrent and short-circuit protection function.Motor and controller possess heat protection function.When motor and controller generation electric protection, except that water pump remains in operation the 1min, other stops at once.Electric machine controller generation electric protection can automatically reply.
With reference to figure 5, based on the vehicle of above-mentioned automatic speed-changing system, during starting, power-transfer clutch is in full engagement state all the time, and vehicle is started to walk by the speed characteristic of self drive motor; During the vehicle acceleration and deceleration, it is the chaufeur bend the throttle, according to schedule, after reaching shifting points, its the rapid separation of clutch control unit controls, this moment, the vehicular drive electric machine controller carried out speed governing according to the rotating speed of target that the AMT control unit sends, and rotating speed of target is to be calculated according to the speed of a motor vehicle and target gear by the AMT control unit; Meanwhile, after the AMT control unit received the feedback of status of disengaging of clutch, the control change-speed box was finished and is plucked the retaining action, and bit selecting is handled, and carries out gear shift operation immediately; After finishing shift control, the AMT control unit sends the free schema request to the drive motor control unit, and this moment, no matter whether the speed governing of drive motor reached rotating speed of target, all will force the freedom of entry pattern; After confirming that motor is in free schema, AMT control unit transmission request splice information is given the clutch control unit, treat clutch engagement after, send the torque mode request to the control motor, motor reverts to normal moment output mode, enters the cruising state; During car brakeing, vehicle is followed the braking principle of priority, has only when braking is removed, and automatic speed-changing system just can be shifted gears according to the self shifter rule, but what deserves to be explained is, the gearshift that allows to bypass the immediate leadership of this operating mode; During maloperation, at first refer to vehicle driving motor also when forward travel state, the error starting switch that reverses gear, this moment, power-transfer clutch should separate rapidly immediately, reported to the police immediately; Secondly, when chaufeur while bend the throttle and brake pedal, think that speed-slackening signal is effective; During overload, power-transfer clutch should separate rapidly, and the maximum torque that the limiting drive train system is born prevents the driving system overload.
The decision condition of above-mentioned vehicle start state is that to be in forward gear or backward gear state and the speed of a motor vehicle be zero to vehicle; During the vehicle acceleration and deceleration, follow the principle that adds downshift step by step.
The engaging speed of above-mentioned power-transfer clutch is to determine by the speed discrepancy of driving and driven part, and by and large, it is big more to follow speed discrepancy, and engaging speed is slow more, and speed discrepancy is more little, the principle that engaging speed is fast more; The clutch engagement amount is to select for use the speed discrepancy of the rotating speed of secondary part and driving and driven part as controlled variable, according to speed discrepancy and pace of change thereof, timely and the suitable adjustment degree of engagement by control algorithm, it is approaching to make that driving and driven part is able to utmost dispatch, but must not too fastly surpass the speed discrepancy increment of setting threshold values.
Above-mentioned self-acting clutch is by being contained in the angular-motion transducer signal on the acceleration pedal turning cylinder, controlling its state of living in, making electronlmobil select proper speed to travel as required; Be provided with the braking mode sensor in the automatic speed-changing system, be used for the perception braking information; Displacement pickup is used to characterize the degree of clutch engagement, separation; Tachogen comprises power-transfer clutch input, output shaft sensor and car speed sensor, is used for the acquisition controlling parameter; Shift sensor is used to pass on gear shifting signal etc.
In addition; the meter panel of motor vehicle place is provided with a series of switch, indicator lamp and read-out, relates to forward gear switch, the switch that reverses gear, braking indicator lamp, reversing indicator lamp, gear demonstration, the warning of mandatory protection pattern, fault alarm, wrong operation alarm, the overload alarm etc. of mainly comprising of the present invention.
When any control unit in drive motor control unit, clutch control unit, the AMT control unit or control area net (CAN) can't normal operation; vehicle enters the mandatory protection pattern and reports to the police; this moment, vehicle can only travel with the current driving state; or stop, do not allow to carry out gear shift operation.
Claims (10)
1. a drive system of electric motor vehicle mainly is made up of drive motor and controller, self-acting clutch and automatic machincal transmission (AMT), and wherein self-acting clutch comprises power-transfer clutch and actuating device and optional mechanical booster mechanism thereof again; Automatic machincal transmission comprises mechanical transmission, block selecting motor and steering unit, shift motor and steering unit thereof again, the A end of described self-acting clutch links to each other with the vehicle driving motor output shaft, secondary part links to each other with the input shaft of automatic machincal transmission, described self-acting clutch adopts the dry type diaphragm-spring clutch, on the basis that does not change power-transfer clutch basic structure, clutch engagement is controlled in real time with displacement that separates and speed; Described dry type diaphragm-spring clutch adds cam mechanism by linear electric motors or rotating machine and drives its direct or indirect joint and separate; Described automatic machincal transmission adopts fixed axis gear formula change-speed box, concrete drive mechanism mainly comprises input shaft assembly, countershaft assembly, output shaft assembly three parts, it is characterized in that, described controller can be to the CAN network issued information, comprise voltage, electric current, moment of torsion, rotating speed, motor temperature, controller temperature, motor operating state, controller running state, pump power running state, failure code, electric machine controller is reserved detection port, with convenient debugging and maintenance; Described drive motor and controling appliance power backup gas shiled function; motor and controller possess under-voltage protection function; when input voltage is lower than 290VDC; the electric machine controller protection is shut down; motor and controller possess over-voltage protecting function; at input voltage or brake voltage during greater than 450VDC; the electric machine controller protection is shut down; motor and controller possess overcurrent and short-circuit protection function; motor and controller possess heat protection function, when motor and controller generation electric protection, except that water pump remains in operation the 1min; other stops at once, and electric machine controller generation electric protection can automatically reply.
2. drive system of electric motor vehicle according to claim 1 is characterized in that, described primary shaft is the input shaft assembly, mainly is made up of a constant mesh gear making one with primary shaft; Described countershaft assembly mainly is made up of tween drive shaft N retaining constant mesh gear (N is any natural number) and the tween drive shaft constant mesh gear of making one with tween drive shaft; Described second axle assembly mainly is made up of output shaft and empty cover two N retaining gears and synchro thereon.
3. drive system of electric motor vehicle according to claim 2 is characterized in that, the bit selecting of described automatic machincal transmission, gearshift actuating unit adopt DC machine to drive, and described motor provides electric energy by Vehicular accumulator cell.
4. drive system of electric motor vehicle according to claim 3 is characterized in that, is provided with the braking mode sensor in the described system, is used for the perception braking information; Displacement pickup is used to characterize the degree of clutch engagement, separation; Tachogen comprises power-transfer clutch input, output shaft sensor and car speed sensor, is used for the acquisition controlling parameter; Shift sensor is used to pass on gear shifting signal.
5. drive system of electric motor vehicle according to claim 4; it is characterized in that what be provided with at the meter panel of motor vehicle place mainly comprises forward gear switch, the switch that reverses gear, braking indicator lamp, reversing indicator lamp, gear demonstration, the warning of mandatory protection pattern, fault alarm, wrong operation alarm, overload alarm.
6. control method according to the described drive system of electric motor vehicle of claim 1-5, it is characterized in that, during vehicle start, power-transfer clutch is in full engagement state all the time, vehicle is started to walk by the speed characteristic of self drive motor, the decision condition of described vehicle start state is that to be in forward gear or backward gear state and the speed of a motor vehicle be zero to vehicle, during the vehicle acceleration and deceleration, it is the chaufeur bend the throttle, according to schedule, reach shifting points after, its rapid separation of clutch control unit controls, this moment, the vehicular drive electric machine controller carried out speed governing according to the rotating speed of target that the AMT control unit sends, and rotating speed of target is to be calculated according to the speed of a motor vehicle and target gear by the AMT control unit; Meanwhile, after the AMT control unit received the feedback of status of disengaging of clutch, the control change-speed box was finished and is plucked the retaining action, and bit selecting is handled, and carries out gear shift operation immediately; After finishing shift control, the AMT control unit sends the free schema request to the drive motor control unit, and this moment, no matter whether the speed governing of drive motor reached rotating speed of target, all will force the freedom of entry pattern; After confirming that motor is in free schema, AMT control unit transmission request splice information is given the clutch control unit, treat clutch engagement after, send the torque mode request to the control motor, motor reverts to normal moment output mode, enters the cruising state.
7. control method according to claim 6 is characterized in that, described self shifter rule adopts three parameter schedules based on acceleration pedal aperture, the speed of a motor vehicle and acceleration/accel.
8. control method according to claim 7 is characterized in that, during the vehicle acceleration and deceleration, follows the principle that adds downshift step by step.
9. control method according to claim 8 is characterized in that, the engaging speed of power-transfer clutch is to determine by the speed discrepancy of driving and driven part, and it is big more to follow speed discrepancy, and engaging speed is slow more, and speed discrepancy is more little, the principle that engaging speed is fast more.
10. control method according to claim 9, it is characterized in that, the clutch engagement amount is to select for use the speed discrepancy of the rotating speed of secondary part and driving and driven part as controlled variable, be according to speed discrepancy and pace of change thereof, timely and the suitable adjustment degree of engagement by control algorithm, it is approaching to make that driving and driven part is able to utmost dispatch, but must not too fastly surpass the speed discrepancy increment of setting threshold values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100974043A CN102180103B (en) | 2011-03-30 | 2011-04-19 | Driving system for electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110078684.3 | 2011-03-30 | ||
| CN201110078684 | 2011-03-30 | ||
| CN2011100974043A CN102180103B (en) | 2011-03-30 | 2011-04-19 | Driving system for electric vehicle |
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| CN102180103A true CN102180103A (en) | 2011-09-14 |
| CN102180103B CN102180103B (en) | 2012-10-17 |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506163A (en) * | 2011-11-08 | 2012-06-20 | 湖南南车时代电动汽车股份有限公司 | Quick gear-shift control method and control system for electric vehicle gearbox |
| CN102562965A (en) * | 2012-01-13 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Two-gear speed changer with magnetic powder clutch for electric automobile |
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| CN106051138A (en) * | 2016-08-17 | 2016-10-26 | 广西科技大学 | Pure electric vehicle double-motor automatic transmission control system and control method thereof |
| CN106564375A (en) * | 2015-10-12 | 2017-04-19 | 北京新能源汽车股份有限公司 | Vehicle reversing control method and device and automobile |
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| CN106808994A (en) * | 2017-01-19 | 2017-06-09 | 重庆长安汽车股份有限公司 | Mixed motor-car and its power drive system |
| CN107514456A (en) * | 2017-08-21 | 2017-12-26 | 合肥翔望智能科技有限公司 | A kind of automatic catch electric automobile gearshift system |
| CN107839471A (en) * | 2017-12-19 | 2018-03-27 | 华东交通大学 | A kind of hub motor for electric automobile intelligent heat dissipation system and control method |
| CN110143169A (en) * | 2018-02-11 | 2019-08-20 | 比亚迪股份有限公司 | Rotating mechanism and vehicle for display terminal |
| CN110296162A (en) * | 2019-06-28 | 2019-10-01 | 潍柴动力股份有限公司 | A kind of clutch control method, device and electronic equipment |
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| CN102506163A (en) * | 2011-11-08 | 2012-06-20 | 湖南南车时代电动汽车股份有限公司 | Quick gear-shift control method and control system for electric vehicle gearbox |
| CN102506163B (en) * | 2011-11-08 | 2015-07-01 | 湖南南车时代电动汽车股份有限公司 | Quick gear-shift control method and control system for electric vehicle gearbox |
| CN102562965B (en) * | 2012-01-13 | 2015-03-04 | 浙江吉利汽车研究院有限公司 | Two-gear speed changer with magnetic powder clutch for electric automobile |
| CN102562965A (en) * | 2012-01-13 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Two-gear speed changer with magnetic powder clutch for electric automobile |
| CN102941816A (en) * | 2012-11-28 | 2013-02-27 | 北京智行鸿远汽车技术有限公司 | Driving motor torque control method for electric vehicle |
| CN102941816B (en) * | 2012-11-28 | 2016-01-20 | 北京智行鸿远汽车技术有限公司 | A kind of drive motor method for controlling torque of elec. vehicle |
| CN104653769A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | AMT (Automated Mechanical Transmission)-based automatic clutch assembly with circular motions |
| CN104295677A (en) * | 2014-09-15 | 2015-01-21 | 山东理工大学 | Automatic two-stage drive-by-wire multiple-gear transmission |
| CN104295677B (en) * | 2014-09-15 | 2017-02-01 | 山东理工大学 | Automatic two-stage drive-by-wire multiple-gear transmission |
| CN104295674A (en) * | 2014-09-15 | 2015-01-21 | 山东理工大学 | Drive-by-wire automatic transmission with multiple gears annularly arranged |
| CN104389958B (en) * | 2014-09-15 | 2017-02-15 | 山东理工大学 | Multi-position line-control automatic transmission for electric automobile |
| CN104389958A (en) * | 2014-09-15 | 2015-03-04 | 山东理工大学 | Multi-position line-control automatic transmission for electric automobile |
| CN104295674B (en) * | 2014-09-15 | 2017-01-25 | 山东理工大学 | Drive-by-wire automatic transmission with multiple gears annularly arranged |
| CN104295732A (en) * | 2014-09-15 | 2015-01-21 | 山东理工大学 | Pulse-width-modulation start control method for multiple-gear drive-by-wire automatic gearbox |
| CN104279318A (en) * | 2014-09-15 | 2015-01-14 | 山东理工大学 | Pulse-width modulation reverse gear starting control method of multi-gear wire-controlled automatic gearbox |
| CN104279318B (en) * | 2014-09-15 | 2016-11-09 | 山东理工大学 | The pulsewidth modulations of many gear line traffic control automatic transmission are reversed gear starting control method |
| CN105156661A (en) * | 2015-06-07 | 2015-12-16 | 深圳市沃特玛电池有限公司 | Gearbox of automatic gear shifting electric vehicle |
| CN105179682A (en) * | 2015-08-25 | 2015-12-23 | 重庆长安汽车股份有限公司 | Gear shifting control method and system of two-gear speed-changing vehicle |
| CN105179682B (en) * | 2015-08-25 | 2017-08-25 | 重庆长安汽车股份有限公司 | The shift control method and system of a kind of two gears transmission vehicle |
| CN106564375A (en) * | 2015-10-12 | 2017-04-19 | 北京新能源汽车股份有限公司 | Vehicle reversing control method and device and automobile |
| CN106564375B (en) * | 2015-10-12 | 2020-05-22 | 北京新能源汽车股份有限公司 | Automobile reversing control method and device and automobile |
| CN106051138A (en) * | 2016-08-17 | 2016-10-26 | 广西科技大学 | Pure electric vehicle double-motor automatic transmission control system and control method thereof |
| CN106051138B (en) * | 2016-08-17 | 2017-12-26 | 广西科技大学 | Pure electric automobile bi-motor automatic transmission control system and its control method |
| CN106740856A (en) * | 2017-01-13 | 2017-05-31 | 洁蓝德新能源科技有限公司 | Power motor aids in shifting control system and its control method |
| CN106808994A (en) * | 2017-01-19 | 2017-06-09 | 重庆长安汽车股份有限公司 | Mixed motor-car and its power drive system |
| CN107514456A (en) * | 2017-08-21 | 2017-12-26 | 合肥翔望智能科技有限公司 | A kind of automatic catch electric automobile gearshift system |
| CN107839471A (en) * | 2017-12-19 | 2018-03-27 | 华东交通大学 | A kind of hub motor for electric automobile intelligent heat dissipation system and control method |
| CN110143169A (en) * | 2018-02-11 | 2019-08-20 | 比亚迪股份有限公司 | Rotating mechanism and vehicle for display terminal |
| CN112534154A (en) * | 2018-05-25 | 2021-03-19 | 邦奇动力有限责任公司 | Vehicle powertrain and method for controlling a powertrain in a vehicle |
| CN110296162A (en) * | 2019-06-28 | 2019-10-01 | 潍柴动力股份有限公司 | A kind of clutch control method, device and electronic equipment |
| CN110296162B (en) * | 2019-06-28 | 2021-04-16 | 潍柴动力股份有限公司 | Clutch control method and device and electronic equipment |
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