CN107575567A - A kind of shift control method with stop-working protection - Google Patents
A kind of shift control method with stop-working protection Download PDFInfo
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- CN107575567A CN107575567A CN201711063052.3A CN201711063052A CN107575567A CN 107575567 A CN107575567 A CN 107575567A CN 201711063052 A CN201711063052 A CN 201711063052A CN 107575567 A CN107575567 A CN 107575567A
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- speed
- gear
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- actuator
- gears
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Abstract
The present invention relates to a kind of shift control method with stop-working protection, including control unit for automatic shift TCU；The gear changer control unit GSM of request gear is sent to CAN；With the actuator for axis connection of shifting gears, actuator is interior to be provided with actuator position sensor；Also include actuator control unit GBC, actuator control unit GBC detects the gear of shifting shaft by actuator position sensor；Defining speed, i.e. to be defined as speed low less than 3Km/h；P gears are sent to CAN when gear changer control unit GSM detects the P gear requests of driver, whether failure, current vehicle speed meet the low condition of speed, judge whether speed changer in limphome pattern systhesis adjusts speed changer according to actuator position sensor.Speed changer protection when adjusting P gears is realized, it is possible to prevente effectively from the situation for occurring damaging automatic transmission because of the maloperation of driver occurs, can improve the service life of automatic transmission in the case where single or multiple control units break down.
Description
Technical field
The present invention relates to a kind of shift control method with stop-working protection.
Background technology
In mechanical changeover mechanism, driver is moved by manipulating common gear level, and common gear level passes through mechanical connection
Gearshift zip drive automatic transmission shifting shaft rotation, so as to realize the switching of tetra- gears of P, R, N, D.With life water
Flat raising, increasing people wishes to aid in driving conditions by advanced technology, so as to improve traffic safety and reduction
Requirement to driving technology.Such as automatic parking, automatically by technologies such as limited road, automatic Pilots, and these technology applications
Premise be that vehicle possesses electric gear change function, it is possible to achieve the automatic switchover between P, R, N, D gear.Actually using car process
In, before vehicle does not come to a complete stop, do not allow to rotate automatic transmission shift axle to P and keep off, otherwise automatic transmission, which occurs, beats tooth
The phenomenon of damage.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of effectively avoid vehicle do not come to a complete stop before shifting shaft rotate to P
The shift control method with stop-working protection of gear.
In order to solve the above technical problems, the technical scheme is that：A kind of shift control method with stop-working protection,
Including operation module, executor module and control unit for automatic shift TCU；
The operation module includes the gear changer control unit GSM for sending driver to CAN and asking gear；
The executor module includes：With the actuator for axis connection of shifting gears, the interior actuator position that is provided with of the actuator passes
Sensor；Also include controlling the actuator control unit GBC, the actuator control unit GBC of the actuator action to pass through institute
State the gear that actuator position sensor detects the shifting shaft；
The gear changer control unit GSM sends the gear request of driver to CAN and institute is obtained from CAN
State the actual gear of shifting shaft；The actuator control unit GBC sends actual gear and the institute of the shifting shaft to CAN
State actuator position sensor whether failure；The control unit for automatic shift TCU obtains actuator position from CAN
Sensor whether failure, the gear request of driver, the actual gear of shifting shaft and speed；
Defining speed, i.e. to be defined as speed low less than 3Km/h；Gear changer control unit GSM detects that the P gears of driver please
P gears are sent to CAN when asking,
S1, judge actuator position sensor whether failure, if actuator position sensor fault-free, performs S2, if
Actuator position sensor failure then performs S3；
S2, judge whether current vehicle speed meets the low condition of speed, if current vehicle speed meets the low condition of speed, actuator
Control unit GBC controls the shifting shaft to perform P gears；If current vehicle speed is unsatisfactory for the low condition of speed, actuator control unit
GBC controls the shifting shaft to perform N gears；
S3, judge whether speed changer is in limphome patterns,
If speed changer is in non-limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed expires
The low condition of sufficient speed, actuator control unit GBC perform P Blind gears；If current vehicle speed is unsatisfactory for speed low condition,
Then actuator control unit GBC performs D Blind gears；
If speed changer is in limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed meets
The low condition of speed, actuator control unit GBC perform P Blind gears；If current vehicle speed is unsatisfactory for the low condition of speed, hold
Row device control unit GBC keeps gear.
As preferable technical scheme, control unit for automatic shift TCU also by PWM communication lines respectively with selector
Control unit GSM connects with actuator control unit GBC.
As preferable technical scheme, the operation module also includes gear indicator lamp, if gear changer control unit GSM is examined
When measuring the gear and the gear difference of GSM requests of the shifting shaft of actuator control unit GBC feedbacks, the gear instruction
Lamp flashes；If gear changer control unit GSM detects the gear and GSM of the shifting shaft of actuator control unit GBC feedbacks
The gear of request is consistent, the gear indicator lamp Chang Liang.
As preferable technical scheme, the gear instruction flicker cycle is 800ms.
As preferable technical scheme, S2, judge whether current vehicle speed meets the low condition of speed, if current vehicle speed meets
The low condition of speed, actuator control unit GBC control the shifting shaft to perform P gears, P gear indicator lamps Chang Liang；If current vehicle speed
The low condition of speed is unsatisfactory for, actuator control unit GBC controls the shifting shaft to perform N gears, P gear indicator lamp flickers；
S3, judge whether speed changer is in limphome patterns,
If speed changer is in non-limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed expires
The low condition of sufficient speed, actuator control unit GBC perform P Blind gears, P gear indicator lamp flickers；If current vehicle speed is unsatisfactory for
During the low condition of speed, then actuator control unit GBC performs D Blind gears, P gear indicator lamp flickers；
If speed changer is in limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed meets
The low condition of speed, actuator control unit GBC perform P Blind gears, P gear indicator lamp flickers；If current vehicle speed is unsatisfactory for car
The low condition of speed, then actuator control unit GBC holdings gear, P gear indicator lamps flash.
As preferable technical scheme, in addition to combination instrument, the combination instrument shows that the speed changer is actually located
Gear.
By adopting the above-described technical solution, a kind of shift control method with stop-working protection is by cooperateing with selector control
Control between unit (GSM) processed, control unit for automatic shift (TCU), actuator control unit (GBC) is realized when adjusting P gears
Speed changer protection, can be in the case where single or multiple control units break down, it is possible to prevente effectively from because driver
Maloperation and the situation that occurs damaging automatic transmission occurs, the service life of automatic transmission can be improved.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the control flow chart of the present invention.
Embodiment
A kind of shift control method with stop-working protection, including operation module, executor module and automatic transmission control
Unit TCU processed；The operation module includes gearshift knob and two gearshift plectrums, gear changer control unit GSM obtain selector
Gear detected by position sensor simultaneously sends the gear changer control unit GSM that driver asks gear to CAN；It is described
Executor module includes：With the actuator for axis connection of shifting gears, the actuator is interior to be provided with actuator position sensor；Also include control
The actuator control unit GBC of actuator action is made, the actuator control unit GBC is passed by the actuator position
Sensor detects the gear of the shifting shaft；
The gear changer control unit GSM sends the gear request of driver to CAN and institute is obtained from CAN
State the actual gear of shifting shaft；The actuator control unit GBC sends actual gear and the institute of the shifting shaft to CAN
State actuator position sensor whether failure；The control unit for automatic shift TCU obtains actuator position from CAN
Sensor whether failure, the gear request of driver, the actual gear of shifting shaft and speed.
The operation module also includes gear indicator lamp, if gear changer control unit GSM detects actuator control unit
When the gear of the shifting shaft of GBC feedbacks and the gear difference of GSM requests, the gear indicator lamp flicker；The gear refers to
It is 800ms to show flicker cycle.If gear changer control unit GSM detects the shifting shaft of actuator control unit GBC feedbacks
Gear be consistent with the GSM gears asked, the gear indicator lamp Chang Liang.
As shown in figure 1, defining speed, less than 3Km/h, i.e. to be defined as speed low；Gear changer control unit GSM detects driving
P gears are sent to CAN during the P gear requests of member,
S1, judge actuator position sensor whether failure, if actuator position sensor fault-free, performs S2, if
Actuator position sensor failure then performs S3；
S2, judge whether current vehicle speed meets the low condition of speed, if current vehicle speed meets the low condition of speed, actuator
Control unit GBC controls the shifting shaft to perform P gears, P gear indicator lamps Chang Liang；If current vehicle speed is unsatisfactory for the low condition of speed,
Actuator control unit GBC controls the shifting shaft to perform N gears, P gear indicator lamp flickers；
S3, judge whether speed changer is in limphome patterns,
If speed changer is in non-limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed expires
The low condition of sufficient speed, actuator control unit GBC perform P Blind gears, P gear indicator lamp flickers；If current vehicle speed is unsatisfactory for
During the low condition of speed, then actuator control unit GBC performs D Blind gears, P gear indicator lamp flickers；
If speed changer is in limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed meets
The low condition of speed, actuator control unit GBC perform P Blind gears, P gear indicator lamp flickers；If current vehicle speed is unsatisfactory for car
The low condition of speed, then actuator control unit GBC holdings gear, P gear indicator lamps flash.
In addition, control unit for automatic shift TCU also by PWM communication lines respectively with gear changer control unit GSM and
Actuator control unit GBC connections.Also include combination instrument, the combination instrument shows the actually located gear of the speed changer.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
- A kind of 1. shift control method with stop-working protection, it is characterised in that：Including operation module, executor module and automatic Transmission control unit TCU；The operation module includes the gear changer control unit GSM for sending driver to CAN and asking gear；The executor module includes：With the actuator for axis connection of shifting gears, the actuator is interior to be provided with actuator position sensor； Also include controlling the actuator control unit GBC, the actuator control unit GBC of the actuator action to pass through the execution Device position sensor detects the gear of the shifting shaft；The gear changer control unit GSM sends the gear request of driver to CAN and changed from CAN described in acquisition The actual gear of gear shaft；The actuator control unit GBC sends the actual gear of the shifting shaft to CAN and described held Row device position sensor whether failure；The control unit for automatic shift TCU obtains actuator position sensing from CAN Device whether failure, the gear request of driver, the actual gear of shifting shaft and speed；Defining speed, i.e. to be defined as speed low less than 3Km/h；When gear changer control unit GSM detects the P gear requests of driver P gears are sent to CAN,S1, judge actuator position sensor whether failure, if actuator position sensor fault-free, performs S2, if perform Device position sensor failure then performs S3；S2, judge whether current vehicle speed meets the low condition of speed, if current vehicle speed meets the low condition of speed, actuator control Unit GBC controls the shifting shaft to perform P gears；If current vehicle speed is unsatisfactory for the low condition of speed, actuator control unit GBC controls Make the shifting shaft and perform N gears；S3, judge whether speed changer is in limphome patterns,If speed changer is in non-limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed meets car The low condition of speed, actuator control unit GBC perform P Blind gears；If current vehicle speed is unsatisfactory for speed low condition, hold Row device control unit GBC performs D Blind gears；If speed changer is in limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed meets speed Low condition, actuator control unit GBC perform P Blind gears；If current vehicle speed is unsatisfactory for the low condition of speed, actuator Control unit GBC keeps gear.
- A kind of 2. shift control method with stop-working protection as claimed in claim 1, it is characterised in that：Automatic transmission control Unit TCU processed is also connected with gear changer control unit GSM and actuator control unit GBC respectively by PWM communication lines.
- A kind of 3. shift control method with stop-working protection as claimed in claim 1, it is characterised in that：The operation module Also include gear indicator lamp, if gear changer control unit GSM detects the shifting shaft of actuator control unit GBC feedbacks When gear and the gear difference of GSM requests, the gear indicator lamp flicker；If gear changer control unit GSM detects actuator The gear of the shifting shaft of control unit GBC feedbacks is consistent with the GSM gears asked, the gear indicator lamp Chang Liang.
- A kind of 4. shift control method with stop-working protection as claimed in claim 3, it is characterised in that：The gear instruction Flicker cycle is 800ms.
- A kind of 5. shift control method with stop-working protection as claimed in claim 3, it is characterised in that：S2, judge whether current vehicle speed meets the low condition of speed, if current vehicle speed meets the low condition of speed, actuator control Unit GBC controls the shifting shaft to perform P gears, P gear indicator lamps Chang Liang；If current vehicle speed is unsatisfactory for the low condition of speed, perform Device control unit GBC controls the shifting shaft to perform N gears, P gear indicator lamp flickers；S3, judge whether speed changer is in limphome patterns,If speed changer is in non-limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed meets car The low condition of speed, actuator control unit GBC perform P Blind gears, P gear indicator lamp flickers；If current vehicle speed is unsatisfactory for speed During low condition, then actuator control unit GBC performs D Blind gears, P gear indicator lamp flickers；If speed changer is in limphome patterns, judge whether speed meets the low condition of speed, if current vehicle speed meets speed Low condition, actuator control unit GBC perform P Blind gears, P gear indicator lamp flickers；It is low that if current vehicle speed is unsatisfactory for speed Condition, then actuator control unit GBC keep gear, P gear indicator lamp flicker.
- A kind of 6. shift control method with stop-working protection as any one of claim 1 to 5, it is characterised in that： Also include combination instrument, the combination instrument shows the actually located gear of the speed changer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711063052.3A CN107575567B (en) | 2017-11-02 | 2017-11-02 | Gear shifting control method with parking protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711063052.3A CN107575567B (en) | 2017-11-02 | 2017-11-02 | Gear shifting control method with parking protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575567A true CN107575567A (en) | 2018-01-12 |
| CN107575567B CN107575567B (en) | 2020-01-14 |
Family
ID=61041386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711063052.3A Active CN107575567B (en) | 2017-11-02 | 2017-11-02 | Gear shifting control method with parking protection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN107575567B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296743A (en) * | 2018-12-10 | 2019-02-01 | 安徽江淮汽车集团股份有限公司 | The control method of shift by wire apparatus |
| CN110043656A (en) * | 2019-04-25 | 2019-07-23 | 四川阿尔特新能源汽车有限公司 | Car gear shifting method, entire car controller, automobile and storage medium |
| CN114396474A (en) * | 2021-12-21 | 2022-04-26 | 中国第一汽车股份有限公司 | Vehicle gear signal initialization method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982646A (en) * | 2014-06-03 | 2014-08-13 | 盛瑞传动股份有限公司 | Method and system for controlling active limp home returning mode entering of automatic gearbox |
| CN104132127A (en) * | 2014-06-24 | 2014-11-05 | 安徽江淮汽车股份有限公司 | Limp home control method of double-clutch automatic transmission |
| WO2017056859A1 (en) * | 2015-10-02 | 2017-04-06 | 株式会社デンソー | Vehicle control device |
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2017
- 2017-11-02 CN CN201711063052.3A patent/CN107575567B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982646A (en) * | 2014-06-03 | 2014-08-13 | 盛瑞传动股份有限公司 | Method and system for controlling active limp home returning mode entering of automatic gearbox |
| CN104132127A (en) * | 2014-06-24 | 2014-11-05 | 安徽江淮汽车股份有限公司 | Limp home control method of double-clutch automatic transmission |
| WO2017056859A1 (en) * | 2015-10-02 | 2017-04-06 | 株式会社デンソー | Vehicle control device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296743A (en) * | 2018-12-10 | 2019-02-01 | 安徽江淮汽车集团股份有限公司 | The control method of shift by wire apparatus |
| CN110043656A (en) * | 2019-04-25 | 2019-07-23 | 四川阿尔特新能源汽车有限公司 | Car gear shifting method, entire car controller, automobile and storage medium |
| CN114396474A (en) * | 2021-12-21 | 2022-04-26 | 中国第一汽车股份有限公司 | Vehicle gear signal initialization method and device, electronic equipment and storage medium |
| CN114396474B (en) * | 2021-12-21 | 2023-09-22 | 中国第一汽车股份有限公司 | Method and device for initializing vehicle gear signal, electronic equipment and storage medium |
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| Publication number | Publication date |
|---|---|
| CN107575567B (en) | 2020-01-14 |
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