CN108980332A - Two gear mechanical automatic gearbox control methods of pure electric coach - Google Patents
Two gear mechanical automatic gearbox control methods of pure electric coach Download PDFInfo
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- CN108980332A CN108980332A CN201710404165.9A CN201710404165A CN108980332A CN 108980332 A CN108980332 A CN 108980332A CN 201710404165 A CN201710404165 A CN 201710404165A CN 108980332 A CN108980332 A CN 108980332A
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- gear
- control unit
- unit tcu
- gear box
- box control
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Classifications
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/38—Inputs being a function of speed of gearing elements
- F16H59/40—Output shaft speed
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0437—Smoothing ratio shift by using electrical signals
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0068—Method or means for testing of transmission controls or parts thereof
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0075—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by a particular control method
- F16H2061/0078—Linear control, e.g. PID, state feedback or Kalman
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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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- 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
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
Two the invention discloses a kind of pure electric coach keep off mechanical automatic gearbox control method, and speed is sent to gear box control unit TCU by the velocity sensor of the output shaft of gearbox；Shift is referred to that request instruction is sent to entire car controller VCU by the gear box control unit TCU, and whether the full-vehicle control unit judges vehicle meets shift condition, if satisfied, sending allows shifting commands, vehicle enters shift mode；Motor carries out unloading torsion processing；The shift motor driving gear lever carries out moving back gear；When the gear lever is moved to neutral gear position, the gear box control unit TCU control motor is adjusted the speed, until when motor speed is matched with output shaft of gear-box revolving speed, the gear box control unit TCU controls the gear lever movement and carries out into gear etc., and finally shift terminates.Invention increases vehicles to the utilization efficiency of the energy content of battery, while reducing the use demand to power of motor, reduces system operation cost, executes precision height, and fast response time ensure that shift smoothly efficiently carries out.
Description
Technical field
The present invention relates to two gear mechanical automatic gearbox controls of a kind of control method more particularly to a kind of pure electric coach
Method processed.
Background technique
With China's economic and industrial expansion, the demand to the energy is increasing, a large amount of uses of chemical energy source, not only
Huge damage is brought to environment and ecology, certain influence is also produced to the living environment of city dweller.With city
Development, automobile become trip main stream traffic tool, and gasoline be main fuel gasoline car can not only rank to atmosphere
Substance harmful with human body, a large amount of gasoline car also generate biggish pressure to the traffic in city.In recent years, as country is to new
The implementation energetically of energy automobile, electric car have obtained unprecedented development.Between this, using public electric car as people
The vehicles of daily trip not only alleviate the pressure of urban transportation, also reduce the row of the pernicious gas of conventional gasoline vehicle
It puts.Electric car includes hybrid vehicle and pure electric automobile, the characteristics of because of pure electric automobile no pollution zero-emission,
It is widely used among many metropolitan public transport.
Currently, the dynamical system of many pure electric coach is still based on battery+motor+electric machine controller, it is defeated by motor
Shaft is directly connected to drive automobile to advance with drive axle, and this mode has structure simple at Development of Electric Vehicles initial stage, at
This cheap, low advantage of maintenance cost, but with the development of pure electric coach, have to the economic benefit and quality of electric car
Increasingly higher demands, this mode being connected directly can not allow motor to operate in high efficiency region always, this is to battery energy
The utilization of amount is had a greatly reduced quality, and also reduces the cruising ability of pure electric coach, part pure electric automobile motor and drive axle it
Between joined gearbox, but the gearbox used is from the gearbox simple modifications of conventional gasoline vehicle, not to it mostly
Targetedly optimized, be not obvious so as to cause efficiency and quality increase, there is at high cost, the low shapes of economic benefit
Condition.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the defects of the prior art, now provide a kind of pure electric coach
Two gear mechanical automatic gearbox control methods, by install two-gear automatic speed changing case, not only increase vehicle to battery energy
The utilization efficiency of amount, while the use demand to power of motor is reduced, to reduce the actual motion cost of whole system.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of two gear mechanical automatic gearbox control methods of pure electric coach of the present invention, it is characterized in that, it is described pure
Electric motor coach two gear mechanical automatic gearbox control methods the following steps are included:
Step S1, the output shaft of gearbox are provided with velocity sensor, and speed is sent to speed change by the velocity sensor
Case control unit TCU；
Step S2 step S2, the gear box control unit TCU are provided with shift critical value, the gear box control unit
TCU judges whether the speed is more than the shift critical value, if not above the gear box control unit TCU controls vehicle
It is run by current shift；If being more than, S3 is entered step；
Shift request instruction is sent to entire car controller VCU by step S3, the gear box control unit TCU, described whole
When vehicle controller VCU judges that vehicle meets shift condition, sent out to the gear box control unit TCU and motor control unit MCU
Permission shifting commands are sent, vehicle enters shift mode；
Step S4, the electric machine controller MCU respond the gear box control unit TCU and stop the response to throttle,
Motor carries out unloading torque processing；
Step S5, the electric machine controller MCU are provided with torque critical value, and the electric machine controller MCU judges the electricity
Whether machine torque is reduced to the torque critical value, if the Motor torque is not reduced in the torque critical value, the electricity
Machine controller MCU issues the warning that reports an error；If the Motor torque is reduced in the torque critical value, S6 is entered step；
Step S6, the gear box control unit TCU drive the shift motor by pwm control signal, make described change
Gear motor driven gear lever carries out moving back gear；
Step S7, the gear box control unit TCU are provided with predetermined position, the gear box control unit TCU judgement
Whether the gear lever reaches the predetermined position, if the gear lever does not reach the predetermined position, the gearbox control
Unit TCU issues the warning that reports an error；If the gear lever reaches the predetermined position, S8 is entered step；
Step S8, the gear box control unit TCU progress block selecting control drive the gear lever to the quilt by block selecting
Block selecting is advanced；The gear box control unit TCU adjusts the revolving speed of the motor simultaneously, makes the revolving speed of the motor and the change
The revolving speed of fast case output shaft matches；
Step S9, the gear box control unit TCU controls the gear lever movement and carries out into gear, until making the shift
Bar enters the selected gear and sets；
Step S10, the gear box control unit TCU stop sending the shifting commands to the entire car controller VCU,
The entire car controller VCU restores the response to throttle, and shift terminates.
Preferably, in the step S4, the data/address bus is CAN bus.
Preferably, in the step S5, the electric machine controller MCU was additionally provided with for the first predetermined time, if the motor
Torque was not reduced in the torque critical value within first predetermined time, and the electric machine controller MCU issues the police that reports an error
It accuses；If the Motor torque is reduced in the torque critical value in first predetermined time, S6 is entered step.
Preferably, in the step S7, position sensor is arranged in the gear lever, and the position sensor is for detecting
The position of the gear lever generates position signal, and the position signal is sent to the gear box control unit, thus institute
It states gear box control unit TCU and judges whether the gear lever reaches the predetermined position.
Preferably, in the step S7, the gear box control unit TCU was provided with for the second predetermined time, if described change
Bar does not reach the predetermined position within second predetermined time, and the gear box control unit TCU issues the warning that reports an error；
If the gear lever reaches the predetermined position within second predetermined time, S8 is entered step.
Preferably, in the step S8, the gear box control unit TCU adjusts the motor by PID control method
Revolving speed.
Preferably, it in the step S8, further comprises the steps of:
Step S81, the gear box control unit TCU judge whether the gear lever moves to reach the designated position,
If no, the gear box control unit TCU carries out the processing that reports an error；If reaching the designated position, S82 is entered step；
Step S82, the gear box control unit TCU be provided with it is described by the reduction ratio of block selecting and third predetermined time,
Whether the gear box control unit TCU judges the ratio between the revolving speed of the motor and the revolving speed of the output shaft of gear-box
Meet the reduction ratio by block selecting, if mismatching within the third ticket reserving time, report an error processing；If matching, into institute
State step S9.
Preferably, it in the step S9, further comprises the steps of:
Step S91, the gear box control unit TCU were provided with for the 4th predetermined time, if in the 4th predetermined time
The interior gear lever is not completed to reach the designated position into gear, if the gear lever fails into gear three times, the gearbox
Control unit TCU carries out the processing that reports an error；If the gear lever is three times into keeping off successfully, gear lever described in the gear lever does backhaul fortune
It is dynamic, it is back to the step S81；If the gear lever successfully arrives at the designated position into gear, S92 is entered step；
Whether step S92, the gear box control unit TCU judge the gear lever completely into gear, the gearbox control
Unit TCU processed was provided with for the 5th predetermined time, if the gear lever in the 5th predetermined time not completely into gear, report an error
Processing；If the gear lever is completely into gear, into the step S10.
The positive effect of the present invention is that:
The present invention not only increases vehicle to the utilization efficiency of the energy content of battery, simultaneously by installation two-gear automatic speed changing case
The use demand to power of motor is reduced, to reduce the actual motion cost of whole system；Automatic change provided by the invention
Direct current generator used in fast case executes precision height, and fast response time ensure that shift smoothly efficiently carries out；Eliminate traditional speed change
The synchronization mechanism of case is adjusted motor speed by PID, is made motor speed and output shaft of gear-box using the method for active synchronization
Match, this not only reduces the complex degree of structure of gearbox, also reduces throttle response and interrupts bring torsional impact, improves
The comfort level of shift；By acquiring the operating parameter of vehicle and the information of cockpit, carried out automatically with the difference of operating condition
The switching of gearbox gear, redistributes energy and is managed, have the characteristics that high financial profit at low cost, in pure electric vehicle visitor
It is had on vehicle and brings huge application value and economic value.
Detailed description of the invention
Fig. 1 is the flow diagram of preferred embodiment of the invention.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
Referring to Figure 1, the present invention provides a kind of two gear mechanical automatic gearbox control methods of pure electric coach, changes
Gear executing agency just uses direct current generator driving method, and actuating motor is controlled by gear box control unit TCU by pwm signal
Operation.Steps are as follows for control method of the invention:
Step S1, the output shaft of gearbox are provided with velocity sensor, and speed is sent to gearbox control by velocity sensor
Unit TCU processed；
Step S2, gear box control unit TCU are provided with shift critical value, and gear box control unit TCU judges that speed is
No is more than shift critical value, if not above gear box control unit TCU controls vehicle and runs by current shift；If being more than, enter
Step S3；
Shift request instruction is sent to entire car controller VCU, entire car controller by step S3, gear box control unit TCU
When VCU judges that vehicle meets shift condition, to gear box control unit TCU, motor control unit MCU transmission, which allows to shift gears, to be referred to
It enables, vehicle enters shift mode；
Step S4, electric machine controller MCU respond gear box control unit TCU and stop the response to throttle, and motor carries out
Unload torque processing；Data/address bus can be CAN bus etc.；
Step S5, electric machine controller MCU are provided with torque critical value, and electric machine controller MCU judges whether Motor torque drops
As low as torque critical value, if Motor torque is not reduced in torque critical value, electric machine controller MCU issues the warning that reports an error；If electric
Machine torque is reduced in torque critical value, enters step S6；
More preferably, electric machine controller MCU was additionally provided with for the first predetermined time, if Motor torque within the first predetermined time not
It is reduced in torque critical value, electric machine controller MCU issues the warning that reports an error；If Motor torque is reduced to torsion in the first predetermined time
In square critical value, S6 is entered step；
Step S6, gear box control unit TCU drive shift motor by pwm control signal, change shift motor driving
Bar carries out moving back gear；
Step S7, gear box control unit TCU are provided with predetermined position, and gear box control unit TCU judges that gear lever is
No arrival predetermined position, if gear lever does not reach predetermined position, gear box control unit TCU issues the warning that reports an error；If gear lever
Predetermined position is reached, S8 is entered step；
Gear lever may be provided with position sensor, and the position that position sensor is used to detect gear lever generates position signal,
And position signal is sent to gear box control unit, so as to judge whether gear lever reaches predetermined by gear box control unit TCU
Position；
More preferably, gear box control unit TCU was provided with for the second predetermined time, if gear lever is within second scheduled time not
Predetermined position is reached, gear box control unit TCU issues the warning that reports an error；If gear lever reaches pre-determined bit within second scheduled time
It sets, then enters step S8；
Step S8, gear box control unit TCU carry out block selecting control by block selecting, drive gear lever to advance to by block selecting, move
It moves to target position；Gear box control unit TCU adjusts the revolving speed of motor simultaneously, such as adjusts motor by PID control method
Revolving speed, the revolving speed of the revolving speed and output shaft of gear-box that make motor matches；
Step S9, gear box control unit TCU control gear lever movement are carried out into gear, until entering gear lever by block selecting
Position；
Step S10, gear box control unit TCU stop sending shifting commands, entire car controller to entire car controller VCU
VCU restores the response to throttle, and shift terminates.
More preferably, in step S8, may further comprise the step of:
Step S81, gear box control unit TCU judge whether gear lever moves to reach designated position, if not having, gearbox
Control unit TCU carries out the processing that reports an error；If reaching designated position, S82 is entered step；
Step S82, gear box control unit TCU are provided with by the reduction ratio of block selecting and third predetermined time, gearbox control
Unit TCU processed judges whether the ratio between the revolving speed of motor and the revolving speed of output shaft of gear-box meets by the reduction ratio of block selecting,
If mismatching within the third ticket reserving time, report an error processing；If matching, enters step S9.
More preferably, it in step S9, further comprises the steps of:
Step S91, gear box control unit TCU were provided with for the 4th predetermined time, if the gear lever within the 4th predetermined time
It does not complete to reach the designated position into gear, if gear lever fails into gear three times, gear box control unit TCU carries out the place that reports an error
Reason；If gear lever is three times into keeping off successfully, gear lever does drawback movement, is back to step S81；If gear lever successfully arrives at finger into gear
Positioning is set, and S92 is entered step；
Whether step S92, gear box control unit TCU judge gear lever completely into gear, gear box control unit TCU setting
Had the 5th predetermined time, if gear lever in the 5th predetermined time not completely into gear, report an error processing；If gear lever completely into
Gear, enters step S10.
Invention removes the synchronization mechanisms of conventional gearbox, using the method for active synchronization, adjust motor by PID
Revolving speed makes motor speed match with output shaft of gear-box, this not only reduces the complex degree of structure of gearbox, also reduces oil
Bring torsional impact is interrupted in door response, improves the comfort level of shift；By the operating parameter and cockpit that acquire vehicle
Information carries out gearbox gear switching with the difference of operating condition automatically, is redistributed and managed to energy, has cost
The characteristics of low high financial profit, has on pure electric coach and brings huge application value and economic value.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.All within the spirits and principles of the present invention, it is made it is any modification, equally replace
It changes, improve, should all be included in the protection scope of the present invention.Thus, certain details in embodiment should not be constituted to this
The restriction of invention, the present invention will be using the ranges that the appended claims define as protection scope of the present invention.
Claims (8)
1. a kind of two gear mechanical automatic gearbox control methods of pure electric coach, which is characterized in that the pure electric coach
Two gear mechanical automatic gearbox control methods the following steps are included:
Step S1, the output shaft of gearbox are provided with velocity sensor, and speed is sent to gearbox control by the velocity sensor
Unit TCU processed；
Step S2, the gear box control unit TCU are provided with shift critical value, and the gear box control unit TCU judges institute
State whether speed is more than the shift critical value, if not above the gear box control unit TCU control vehicle presses current shift
Operation；If being more than, S3 is entered step；
Shift request instruction is sent to entire car controller VCU, the vehicle control by step S3, the gear box control unit TCU
When device VCU processed judges that vehicle meets shift condition, sends and permit to the gear box control unit TCU and motor control unit MCU
Perhaps shifting commands, vehicle enter shift mode；
Step S4, the electric machine controller MCU respond the gear box control unit TCU and stop the response to throttle, motor
Carry out unloading torque processing；
Step S5, the electric machine controller MCU are provided with torque critical value, and the electric machine controller MCU judges that the motor is turned round
Whether square is reduced to the torque critical value, if the Motor torque is not reduced to the torque critical value, the motor control
Device MCU issues the warning that reports an error；If the Motor torque is reduced in the torque critical value, S6 is entered step；
Step S6, the gear box control unit TCU drive the shift motor by pwm control signal, make the shift electricity
Machine driving gear lever carries out moving back gear；
Step S7, the gear box control unit TCU are provided with predetermined position, described in the gear box control unit TCU judgement
Whether gear lever reaches the predetermined position, if the gear lever does not reach the predetermined position, the gear box control unit
TCU issues the warning that reports an error；If the gear lever reaches the predetermined position, S8 is entered step；
Step S8, the gear box control unit TCU progress block selecting control drive the gear lever to advance to by block selecting；Simultaneously
The gear box control unit TCU adjusts the revolving speed of the motor, makes the revolving speed of the motor and the output shaft of gear-box
Revolving speed matches；
Step S9, the gear box control unit TCU control the gear lever movement and carry out into gear, until make the gear lever into
Enter the selected gear to set；
Step S10, the gear box control unit TCU stop sending the shifting commands to the entire car controller VCU, described
Entire car controller VCU restores the response to throttle, and shift terminates.
2. two gear mechanical automatic gearbox control methods of pure electric coach according to claim 1, which is characterized in that
In the step S4, the data/address bus is CAN bus.
3. two gear mechanical automatic gearbox control methods of pure electric coach according to claim 1, which is characterized in that
In the step S5, the electric machine controller MCU was additionally provided with for the first predetermined time, if the Motor torque is pre- described first
It is not reduced in the torque critical value in fixing time, the electric machine controller MCU issues the warning that reports an error；If the Motor torque
It is reduced in the torque critical value in first predetermined time, enters step S6.
4. two gear mechanical automatic gearbox control methods of pure electric coach according to claim 1, which is characterized in that
In the step S7, position sensor is arranged in the gear lever, and the position sensor is used to detect the position of the gear lever
Generation position signal is set, and the position signal is sent to the gear box control unit, so that gearbox control is single
First TCU judges whether the gear lever reaches the predetermined position.
5. two gear mechanical automatic gearbox control methods of pure electric coach according to claim 4, which is characterized in that
In the step S7, the gear box control unit TCU was provided with for the second predetermined time, if the gear lever is pre- described second
The predetermined position is not reached in fixing time, the gear box control unit TCU issues the warning that reports an error；If the gear lever is in institute
It states and reaches the predetermined position in the second predetermined time, enter step S8.
6. two gear mechanical automatic gearbox control methods of pure electric coach according to claim 1, which is characterized in that
In the step S8, the gear box control unit TCU adjusts the revolving speed of the motor by PID control method.
7. two gear mechanical automatic gearbox control methods of pure electric coach according to claim 1, which is characterized in that
In the step S8, further comprise the steps of:
Step S81, the gear box control unit TCU judges whether the gear lever moves to reach designated position, if not having, institute
It states gear box control unit TCU and carries out the processing that reports an error；If reaching the designated position, S82 is entered step；
Step S82, the gear box control unit TCU be provided with it is described by the reduction ratio of block selecting and third predetermined time, it is described
Gear box control unit TCU judges whether the ratio between the revolving speed of the motor and the revolving speed of the output shaft of gear-box meets
The reduction ratio by block selecting, if mismatching within the third ticket reserving time, report an error processing；If when the third is subscribed
Interior matching, into the step S9.
8. two gear mechanical automatic gearbox control methods of pure electric coach according to claim 7, which is characterized in that
In the step S9, further comprise the steps of:
Step S91, the gear box control unit TCU were provided with for the 4th predetermined time, if the institute within the 4th predetermined time
Gear lever is stated not complete to reach the designated position into gear, if the gear lever fails into gear three times, the gearbox control
Unit TCU carries out the processing that reports an error；If the gear lever is three times into keeping off successfully, gear lever described in the gear lever does drawback movement,
It is back to the step S81；If the gear lever successfully arrives at the designated position into gear, S92 is entered step；
Whether step S92, the gear box control unit TCU judge the gear lever completely into gear, and the gearbox control is single
First TCU was provided with for the 5th predetermined time, if the gear lever in the 5th predetermined time not completely into gear, report an error place
Reason；If the gear lever is completely into gear, into the step S10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404165.9A CN108980332A (en) | 2017-06-01 | 2017-06-01 | Two gear mechanical automatic gearbox control methods of pure electric coach |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404165.9A CN108980332A (en) | 2017-06-01 | 2017-06-01 | Two gear mechanical automatic gearbox control methods of pure electric coach |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486229A (en) * | 2019-01-28 | 2020-08-04 | 上海汽车变速器有限公司 | Method for controlling gear shifting process of pure electric two-gear reduction box |
| WO2021115027A1 (en) * | 2019-12-09 | 2021-06-17 | 北理慧动（常熟）车辆科技有限公司 | Amt gear shifting process control method |
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| CN104728422A (en) * | 2015-03-23 | 2015-06-24 | 山东理工大学 | Electric vehicle gear-shifting control method and system |
| CN106114493A (en) * | 2016-07-28 | 2016-11-16 | 长春孔辉汽车科技股份有限公司 | A kind of electric automobile AMT shift process control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111486229A (en) * | 2019-01-28 | 2020-08-04 | 上海汽车变速器有限公司 | Method for controlling gear shifting process of pure electric two-gear reduction box |
| WO2021115027A1 (en) * | 2019-12-09 | 2021-06-17 | 北理慧动（常熟）车辆科技有限公司 | Amt gear shifting process control method |
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