CN102004031A - Gear shift detection device and detection method for automated mechanical transmission for electric vehicle - Google Patents
Gear shift detection device and detection method for automated mechanical transmission for electric vehicle Download PDFInfo
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Abstract
The invention relates to a gear shift detection device for an automated mechanical transmission for an electric vehicle, which comprises a control unit, a driving motor, a speed reducer and an inertia flywheel set, wherein the output end of the driving motor is connected with the input end of an AMT (automated mechanical transmission) to be detected, the output end of the AMT to be detected is connected with the output end of the speed reducer, the rotational inertia at the input end of the AMT to be detected is equivalent to that at the input end of the speed reducer, the rotational inertia is respectively transformed from the rotational inertia of the whole vehicle during the gear shift of the AMT, and the rotational inertia at the input end of the AMT is converted to the input end of the speed reducer, thereby being unnecessary to carry out combined adjustment on the flywheel set when carrying out gear position test every time any longer. The gear shift detection device and a detection method for the automated mechanical transmission for the electric vehicle have the advantages of being simple and compact in mechanical structure, being easy for mounting and adjustment, improving the operability of the gear shift test of the AMT and leading the detection process to be simpler.
Description
Technical field
The present invention relates to the Vehicle Inspection device and the method for inspection, the verifying attachment of particularly electric motor car kinematic train and the method for inspection specifically are meant a kind of electric vehicle automatic mechanical transmission gearshift pick-up unit and detection method.
Background technology
Advantages such as electric automobile has that noise is little, zero-emission, comfortable clean, easy operating and maintenance, be automobile realize robotization, intelligent development must be through approach, it also is the basic selection of the auto industry strategy of sustainable development, therefore, electric automobile is that by universally acknowledged 21 century replaces the most desirable, the most promising green traffic instrument of fuel-engined vehicle.
Electric automobile is power with the battery, by motor-driven, the characteristic of motor is horizontal moment of torsion output in rated speed, permanent power output on rated speed, though the characteristic of motor is fine to vehicle, but in vehicle start and when climbing, need very big moment of torsion, and will guarantee vehicle to demand at a high speed with improve efficiency of motor, so electric automobile all must the apolegamy variator.
Electric control mechanical type automatic speed variator (AMT, Automated Mechanical Transmission) be on the basis of MT (mechanical transmission), to grow up, AMT has the efficient height, volume is little, mechanism is simple, production and maintenance cost are low, advantage such as is easy to change a social system on the MT basis.At present, AMT is adopted on the traditional power car widely, and the use of AMT on pure electric automobile also is in the development test stage, and the AMT test does not also have ripe test standard and test method at present.Used for electric vehicle no-clutch AMT shift control method and traditional vehicle have very large difference, traditional vehicle all is to have mated clutch coupling and hydraulic operating system is shifted gears, and adopt by control motor-driven gearshift of used for electric vehicle no-clutch AMT control method shifted gears more.Gearbox shifting testing program comparatively commonly used at present is that the different Flywheel disc composition inertial flywheel group of employing is simulated the car load equivalent inertia under the different gears, like this when carrying out the test of different gears, need constantly make up adjustment to the flywheel group, this scheme physical construction more complicated, takes time and effort operating difficulties.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of simple in structure, easy and simple to handle, the electric vehicle automatic mechanical transmission gearshift pick-up unit and the detection method that need not the inertial flywheel group is adjusted in test process are provided.
In order to realize above-mentioned purpose, electric vehicle automatic mechanical transmission gearshift pick-up unit of the present invention has following formation:
This electric vehicle automatic mechanical transmission gearshift pick-up unit comprises control module, drive motor, speed reduction unit and inertial flywheel group, the output terminal of described drive motor connects the input end of automatic mechanical transmission to be measured, the output terminal of automatic mechanical transmission to be measured connects the output terminal of described speed reduction unit, the input end of described inertial flywheel group connection reducer, described control module connect described drive motor and automatic mechanical transmission to be measured.
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, the moment of inertia of described automatic mechanical transmission input end to be measured equates with the moment of inertia of speed reduction unit input end, is
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, described automatic mechanical transmission to be measured connects described speed reduction unit by universal drive shaft.
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, described speed reduction unit is connected with described inertial flywheel group by spring coupling.
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, described automatic mechanical transmission to be measured is a two speed gear.
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, described control module comprises host computer, microcontroller, variable-speed controller and gearshift controller, described host computer connects described drive motor by described microcontroller, and described host computer is connected described automatic mechanical transmission to be measured by described variable-speed controller in proper order with gearshift controller, and described microcontroller and described variable-speed controller interconnect.
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, described control module also comprises speed pickup, and described speed pickup connects described drive motor and described microcontroller respectively.Between described host computer and the microcontroller, all interconnect between host computer and the variable-speed controller and between microcontroller and the variable-speed controller by bus.
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, described inertial flywheel group comprises flywheel, bearing, axle, bearing seat and bearing seat mounting seat, described flywheel is fixed on the axle by flat key, axle is supported in the bearing seat at two ends the fixedly connected described bearing seat base of bearing seat respectively by the bearing at its two ends.The inertial flywheel group also comprises the flywheel protective cover that is arranged at the flywheel outside, offers ventilating heat dissipating hole and observation port on the described flywheel protective cover.
In this electric vehicle automatic mechanical transmission gearshift pick-up unit, described automatic mechanical transmission to be measured, speed reduction unit and inertial flywheel group all are fixed on the horizontal checkout platform by support.
The present invention also provides a kind of and utilizes described device to realize the method that the gearshift of electric vehicle automatic mechanical transmission detects, the operational mode of described drive motor comprises torque mode, velocity mode and free schema, described microcontroller controlling and driving motor is in each switch between modes of operation, and described method specifically may further comprise the steps:
(1) automatic mechanical transmission to be measured is in first gear, and when drive motor was the torque mode operation, host computer sent the rotating speed of target instruction to microcontroller;
(2) after microcontroller was received the rotating speed of target instruction of host computer, the controlling and driving motor reached rotating speed of target and control information is fed back to host computer and variable-speed controller;
(3) variable-speed controller judges that when needing gearshift, variable-speed controller sends the motor free schema and instructs to microcontroller;
(4) microcontroller controlling and driving motor is converted to free schema by torque mode, and control information is fed back to variable-speed controller;
(5) after variable-speed controller was received motor and has been in the instruction of free schema, variable-speed controller was controlled automatic mechanical transmission gearshift controller to be measured automatic mechanical transmission to be measured is changed to neutral gear;
(6) variable-speed controller is to microcontroller transmission speed mode instruction and motor rotating speed of target;
(7) microcontroller controlling and driving motor is converted to velocity mode by free schema, and control information is fed back to variable-speed controller;
(8) after variable-speed controller was received motor and has been in velocity mode and reached the instruction of rotating speed of target, variable-speed controller sent the free schema instruction to microcontroller;
(9) microcontroller controlling and driving motor is converted to free schema by torque mode, and control information is fed back to variable-speed controller;
(10) after variable-speed controller was received motor and has been in the instruction of free schema, variable-speed controller was controlled automatic mechanical transmission shift motor to be measured automatic mechanical transmission to be measured is changed to second grade;
(11) variable-speed controller sends the torque mode instruction to microcontroller, and microcontroller controlling and driving motor is converted to torque mode.
In the method that described electric vehicle automatic mechanical transmission gearshift detects, described method is further comprising the steps of afterwards in step (11):
(12) host computer judges whether to have obtained the circulation shifting commands;
(13) if then repeat (1) step to (12); If not, then finish.
In the method that described electric vehicle automatic mechanical transmission gearshift detects, described microcontroller controlling and driving motor is meant specifically that in each switch between modes of operation microcontroller switches between rotating speed pattern, torque mode and free schema by pid algorithm unit controls motor.
Adopted the electric vehicle automatic mechanical transmission gearshift pick-up unit and the detection method of this invention,, be because the moment of inertia of described AMT input end to be measured equates with the moment of inertia of speed reduction unit input end
The conversion of car load moment of inertia when AMT is shifted gears, the moment of inertia of AMT input end is transformed into the input end of speed reduction unit, reduce AMT when gearshift car load moment of inertia of required simulation when the AMT input end, simultaneously needn't be again the flywheel group have been made up adjustment when doing each gear and test.Therefore, electric vehicle automatic mechanical transmission gearshift pick-up unit provided by the present invention and detection method, its physical construction is simple, compact, be easy to install and adjust, improved the operability of AMT gearshift test, the moment of inertia and the shift process of car load make testing process easier in the time of can simulating the AMT gear shift truly.
Description of drawings
Fig. 1 is the structural representation of electric vehicle automatic mechanical transmission gearshift pick-up unit of the present invention.
Fig. 2 is in the actual detected process, the flow chart of steps of electric vehicle automatic mechanical transmission gearshift detection method provided by the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 1ly, be the structural representation of electric vehicle automatic mechanical transmission gearshift pick-up unit of the present invention.
In one embodiment of the invention, described electric vehicle automatic mechanical transmission gearshift pick-up unit comprises control module, drive motor 13, speed reduction unit 8 and inertial flywheel group, the output terminal of described drive motor 13 connects the input end of automatic mechanical transmission 11 to be measured, the output terminal of automatic mechanical transmission 11 to be measured connects the output terminal of described speed reduction unit 8, the input end of described inertial flywheel group connection reducer 8, described control module connect described drive motor 13 and automatic mechanical transmission to be measured 11.Described automatic mechanical transmission to be measured 11, speed reduction unit 8 and inertial flywheel group all are fixed on the horizontal checkout platform by support.The moment of inertia of described automatic mechanical transmission to be measured 11 input ends equates with the moment of inertia of speed reduction unit 8 input ends, is
In a kind of more preferably embodiment, described automatic mechanical transmission 11 to be measured connects described speed reduction unit 8 by universal drive shaft 10.Described speed reduction unit 8 is connected with described inertial flywheel group by spring coupling 1.Described automatic mechanical transmission to be measured 11 is a two speed gear.
At another kind more preferably in the embodiment, described control module comprises host computer, microcontroller, variable-speed controller and gearshift controller, described host computer connects described drive motor 13 by described microcontroller, and described host computer is connected described automatic mechanical transmission to be measured 11 by described variable-speed controller in proper order with gearshift controller, and described microcontroller and described variable-speed controller interconnect.
In further preferred embodiment, described control module also comprises speed pickup, and described speed pickup connects described drive motor 13 and described microcontroller respectively.Between described host computer and the microcontroller, all interconnect between host computer and the variable-speed controller and between microcontroller and the variable-speed controller by bus.
At another more preferably in the embodiment, described inertial flywheel group comprises flywheel 2, bearing 4, axle 5, bearing seat 3 and bearing seat mounting seat 6, described flywheel 2 is fixed on the axle 5 by flat key, axle 5 bearings 4 by its two ends are supported in the bearing seat 3 at two ends bearing seat 3 fixedly connected described bearing seat bases 6 respectively.
In a kind of further preferred embodiment, the inertial flywheel group also comprises the flywheel protective cover (not shown) that is arranged at the flywheel outside, offers ventilating heat dissipating hole and observation port on the described flywheel protective cover.
The present invention also provides a kind of and has utilized described device to realize the method that the gearshift of electric vehicle automatic mechanical transmission detects, in the method, the operational mode of described drive motor comprises torque mode, velocity mode and free schema, described microcontroller controlling and driving motor is in each switch between modes of operation, and described method may further comprise the steps:
(1) automatic mechanical transmission to be measured is in first gear, and when drive motor was the torque mode operation, host computer sent the rotating speed of target instruction to microcontroller;
(2) after microcontroller was received the rotating speed of target instruction of host computer, the controlling and driving motor reached rotating speed of target and control information is fed back to host computer and variable-speed controller;
(3) variable-speed controller judges that when needing gearshift, variable-speed controller sends the motor free schema and instructs to microcontroller;
(4) microcontroller controlling and driving motor is converted to free schema by torque mode, and control information is fed back to variable-speed controller;
(5) after variable-speed controller was received motor and has been in the instruction of free schema, variable-speed controller was controlled automatic mechanical transmission gearshift controller to be measured automatic mechanical transmission to be measured is changed to neutral gear;
(6) variable-speed controller is to microcontroller transmission speed mode instruction and motor rotating speed of target;
(7) microcontroller controlling and driving motor is converted to velocity mode by free schema, and control information is fed back to variable-speed controller;
(8) after variable-speed controller was received motor and has been in velocity mode and reached the instruction of rotating speed of target, variable-speed controller sent the free schema instruction to microcontroller;
(9) microcontroller controlling and driving motor is converted to free schema by torque mode, and control information is fed back to variable-speed controller;
(10) after variable-speed controller was received motor and has been in the instruction of free schema, variable-speed controller was controlled automatic mechanical transmission shift motor to be measured automatic mechanical transmission to be measured is changed to second grade;
(11) variable-speed controller sends the torque mode instruction to microcontroller, and microcontroller controlling and driving motor is converted to torque mode.
In a kind of preferred embodiment, described method is further comprising the steps of afterwards in step (11):
(12) host computer judges whether to have obtained the circulation shifting commands;
(13) if then repeat (1) step to (12); If not, then finish.
In further preferred embodiment, described microcontroller controlling and driving motor is meant specifically that in each switch between modes of operation microcontroller switches between rotating speed pattern, torque mode and free schema by pid algorithm unit controls motor.
In an application of the invention, as shown in Figure 1, electric vehicle automatic mechanical transmission gearshift pick-up unit provided by the present invention generally includes: on the basic terrace iron 7 of test-bed, by the whole mechanism of flywheel group that flywheel 2, bearing 4, axle 5, bearing seat 3 and bearing seat mounting seat 6 are assembled into, the car load moment of inertia when the AMT gearshift can be simulated by this mechanism.This mechanism is connected with the input end of accompanying examination speed reduction unit 8 by spring coupling 1, when adopting spring coupling 1 can reduce the stand installation to neutral requirement, be convenient to installation and debugging.
Accompany between examination speed reduction unit 8 and the tested AMT 11 and be connected by a universal drive shaft 10, because the characteristic of universal drive shaft 10, reduced between speed reduction unit 8 and the AMT 11 requirement of neutral, make things convenient for the installation and debugging of speed reduction unit 8 and AMT 11, speed reduction unit 8 is by being bolted on the speed reduction unit mounting seat 9.
The power source of testing table is provided by the drive motor 13 of tested AMT 11 input ends, this motor 13 is the pure electric automobile drive motor, this motor 13 and two grades of AMT 11 have constituted the pure electric automobile power assembly together, use this motor can better simulate the actual operating position of pure electric automobile, the propulsion system when more real simulated AMT gearshift is tested as the power source of stand.
For the security in the warranty test, at flywheel 2, shaft coupling 1 be connected on the rotary parts such as semiaxis and all be provided with the protective cover (not shown), improved the security performance and the grade of whole stand.Wherein, the flywheel protective cover can also be provided with observation port and louvre, when being convenient to test the flywheel working condition is observed heat radiation with flywheel; Simultaneously, handle has been installed, the convenient installation and carrying in the left and right sides of flywheel protective cover.
In actual experiment, also be included in tested AMT and temperature sensor all be installed with accompanying in the examination speed reduction unit, in tested AMT speed pickup has been installed, simultaneously motor internal is provided with speed and temperature sensor, can monitor the internal temperature of motor and AMT and speed reduction unit and rotating speed etc. in real time.In order to simulate AMT actual operating position onboard, motor and electric machine controller adopt water-cooling pattern, and AMT adopts air cooling way.
When actual tests, motor provides power as power source for whole stand, at AMT input end car load moment of inertia
Motor through the moment of inertia equivalence that AMT slows down simultaneously the AMT input end is
Having carried out a speedup through the single speed ratio speed reducer then with the moment of inertia equivalence of AMT output terminal to the speed reduction unit input end is simultaneously
The conversion of car load moment of inertia when AMT is shifted gears, the moment of inertia of AMT input end is transformed into the input end of speed reduction unit, reduce AMT when gearshift car load moment of inertia of required simulation when the AMT input end, simultaneously needn't be again the flywheel group have been made up adjustment when doing each gear and test.
In the actual detection process, in the method that electric vehicle automatic mechanical transmission gearshift provided by the present invention detects, carry out communication and uniting and adjustment by bus (CAN communications protocol) between host computer, TCU (variable-speed controller) and the MCU (microcontroller); MCU control motor switches between torque mode, velocity mode and free schema; Detect motor speed signal, the motor speed adjustable extent reaches 4000rpm, AMT 1.5S of whole shift process time spent in the 1s; AMT is the circulation gearshift between one grade, N shelves and second gear; When the speed of a motor vehicle is higher than the upshift speed of a motor vehicle of setting, carries out the upshift operation, and when the speed of a motor vehicle is lower than the downshift speed of a motor vehicle of setting, carry out the downshift operation.
As shown in Figure 2, this detection method specifically may further comprise the steps:
Step 101 at first places AMT one grade, sends out rotating speed of target by the ipc monitor program and instructs to MCU;
Step 102, after MCU received the rotating speed of target instruction of host computer, the control motor reached rotating speed of target and feeds back to host computer and TCU;
Step 103, after TCU received the feedback that MCU is tuned to rotating speed of target, TCU judged whether gearshift;
Step 104, after TCU judged that having reached rotating speed of target also determines gearshift, TCU sent the motor free schema and instructs to MCU;
Step 105, MCU controlling and driving motor is converted to free schema and is fed back TCU by torque mode;
Step 106, after TCU received motor and has been in the instruction of free schema state, TCU control AMT shift motor changed to the N shelves with AMT;
Step 107, after AMT changed to the N shelves, TCU was to MCU transmission speed mode instruction and motor rotating speed of target;
Step 108, TCU receives the feedback of MCU, judges whether motor has reached rotating speed of target;
Step 109, the feedback motor that TCU receives MCU has reached rotating speed of target, and TCU sends the free schema instruction to MCU;
Step 110, TCU receives the feedback of MCU, judges whether motor is in the free schema state;
Step 111, the feedback motor that TCU receives MCU has been in the free schema state, and TCU control AMT shift motor changes to second gear with AMT;
Step 112, after gearshift was finished, TCU sent torque mode instruction, MCU controlling and driving motor resetting torque pattern to MCU;
Judge whether the to circulate instruction of gearshift (second gear is gained one grade) of step 113, host computer;
Step 114, when host computer is not received shifting commands, the motor attitude of remaining stationary; When host computer was received the instruction that needs gearshift (gaining a grade), gearshift was got back to step 201 and is repeated 201 to 212 step.
Adopted electric vehicle automatic mechanical transmission of the present invention gearshift pick-up unit and detection method,, be because the moment of inertia of described AMT input end to be measured equates with the moment of inertia of speed reduction unit input end
The conversion of car load moment of inertia when AMT is shifted gears, the moment of inertia of AMT input end is transformed into the input end of speed reduction unit, reduce AMT when gearshift car load moment of inertia of required simulation when the AMT input end, simultaneously needn't be again the flywheel group have been made up adjustment when doing each gear and test.Therefore, electric vehicle automatic mechanical transmission gearshift pick-up unit provided by the present invention and detection method, its physical construction is simple, compact, be easy to install and adjust, improved the operability of AMT gearshift test, the moment of inertia and the shift process of car load make testing process easier in the time of can simulating the AMT gear shift truly.
In this instructions, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (14)
1. electric vehicle automatic mechanical transmission gearshift pick-up unit, it is characterized in that, described pick-up unit comprises control module, drive motor, speed reduction unit and inertial flywheel group, the output terminal of described drive motor connects the input end of automatic mechanical transmission to be measured, the output terminal of automatic mechanical transmission to be measured connects the output terminal of described speed reduction unit, the input end of described inertial flywheel group connection reducer, described control module connect described drive motor and automatic mechanical transmission to be measured.
2. electric vehicle automatic mechanical transmission gearshift pick-up unit according to claim 1 is characterized in that the moment of inertia of described automatic mechanical transmission input end to be measured equates with the moment of inertia of speed reduction unit input end, is
3. electric vehicle automatic mechanical transmission gearshift pick-up unit according to claim 1 is characterized in that described automatic mechanical transmission to be measured connects described speed reduction unit by universal drive shaft.
4. electric vehicle automatic mechanical transmission gearshift pick-up unit according to claim 1 is characterized in that described speed reduction unit is connected with described inertial flywheel group by spring coupling.
5. electric vehicle automatic mechanical transmission gearshift pick-up unit according to claim 1 is characterized in that described automatic mechanical transmission to be measured is a two speed gear.
6. according to each described electric vehicle automatic mechanical transmission gearshift pick-up unit in the claim 1～5, it is characterized in that, described control module comprises host computer, microcontroller, variable-speed controller and gearshift controller, described host computer connects described drive motor by described microcontroller, and described host computer is connected described automatic mechanical transmission to be measured by described variable-speed controller in proper order with gearshift controller, and described microcontroller and described variable-speed controller interconnect.
7. electric vehicle automatic mechanical transmission gearshift pick-up unit according to claim 6 is characterized in that described control module also comprises speed pickup, and described speed pickup connects described drive motor and described microcontroller respectively.
8. electric vehicle automatic mechanical transmission gearshift pick-up unit according to claim 7, it is characterized in that, between described host computer and the microcontroller, all interconnect between host computer and the variable-speed controller and between microcontroller and the variable-speed controller by bus.
9. according to each described electric vehicle automatic mechanical transmission gearshift pick-up unit in the claim 1～5, it is characterized in that, described inertial flywheel group comprises flywheel, bearing, axle, bearing seat and bearing seat mounting seat, described flywheel is fixed on the axle by flat key, axle is supported in the bearing seat at two ends the fixedly connected described bearing seat base of bearing seat respectively by the bearing at its two ends.
10. electric vehicle automatic mechanical transmission gearshift pick-up unit according to claim 9 is characterized in that the inertial flywheel group also comprises the flywheel protective cover that is arranged at the flywheel outside, offers ventilating heat dissipating hole and observation port on the described flywheel protective cover.
11., it is characterized in that described automatic mechanical transmission to be measured, speed reduction unit and inertial flywheel group all are fixed on the horizontal checkout platform by support according to each described electric vehicle automatic mechanical transmission gearshift pick-up unit in the claim 1～5.
12. one kind is utilized the described device of claim 1 to realize the method that the gearshift of electric vehicle automatic mechanical transmission detects, it is characterized in that, the operational mode of described drive motor comprises torque mode, velocity mode and free schema, described microcontroller controlling and driving motor is in each switch between modes of operation, and described method may further comprise the steps:
(1) automatic mechanical transmission to be measured is in first gear, and when drive motor was the torque mode operation, host computer sent the rotating speed of target instruction to microcontroller;
(2) after microcontroller was received the rotating speed of target instruction of host computer, the controlling and driving motor reached rotating speed of target and control information is fed back to host computer and variable-speed controller;
(3) variable-speed controller judges that when needing gearshift, variable-speed controller sends the motor free schema and instructs to microcontroller;
(4) microcontroller controlling and driving motor is converted to free schema by torque mode, and control information is fed back to variable-speed controller;
(5) after variable-speed controller was received motor and has been in the instruction of free schema, variable-speed controller was controlled automatic mechanical transmission gearshift controller to be measured automatic mechanical transmission to be measured is changed to neutral gear;
(6) variable-speed controller is to microcontroller transmission speed mode instruction and motor rotating speed of target;
(7) microcontroller controlling and driving motor is converted to velocity mode by free schema, and control information is fed back to variable-speed controller;
(8) after variable-speed controller was received motor and has been in velocity mode and reached the instruction of rotating speed of target, variable-speed controller sent the free schema instruction to microcontroller;
(9) microcontroller controlling and driving motor is converted to free schema by torque mode, and control information is fed back to variable-speed controller;
(10) after variable-speed controller was received motor and has been in the instruction of free schema, variable-speed controller was controlled automatic mechanical transmission shift motor to be measured automatic mechanical transmission to be measured is changed to second grade;
(11) variable-speed controller sends the torque mode instruction to microcontroller, and microcontroller controlling and driving motor is converted to torque mode.
13. the method that electric vehicle automatic mechanical transmission gearshift according to claim 12 detects is characterized in that described method is further comprising the steps of afterwards in step (11):
(12) host computer judges whether to have obtained the circulation shifting commands;
(13) if then repeat (1) step to (12); If not, then finish.
14. method according to claim 12 or 13 described electric vehicle automatic mechanical transmission gearshift detections, it is characterized in that, described microcontroller controlling and driving motor is meant specifically that in each switch between modes of operation microcontroller switches between rotating speed pattern, torque mode and free schema by pid algorithm unit controls motor.
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| CN106841871A (en) * | 2017-02-15 | 2017-06-13 | 南京越博动力系统股份有限公司 | A kind of pure electric automobile assembly is test bed to dragging |
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