CN108361368B - The fault handling method and gearbox control system of gas pedal - Google Patents
The fault handling method and gearbox control system of gas pedal Download PDFInfo
- Publication number
- CN108361368B CN108361368B CN201810157532.4A CN201810157532A CN108361368B CN 108361368 B CN108361368 B CN 108361368B CN 201810157532 A CN201810157532 A CN 201810157532A CN 108361368 B CN108361368 B CN 108361368B
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- position signal
- pedal position
- accelerator pedal
- gas pedal
- speed
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000009790 rate-determining step (RDS) Methods 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241001293511 Umbra Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1232—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
The invention discloses a kind of fault handling method of gas pedal and gearbox control systems, method includes that judgment step obtains accelerator pedal position signal, and judges validity, effectively then enters rate-determining steps, vehicle driving is controlled according to accelerator pedal position signal, then enters next step in vain；Processing step obtains current vehicle speed, and compared with threshold speed, otherwise holdback clutch when current vehicle speed is lower than threshold speed enters next step；Alternative steps send gas pedal analog signal, verify the validity of gas pedal analog signal, effectively then return to judgment step, while rate-determining steps control vehicle driving according to gas pedal analog signal, otherwise holdback clutch；Reboot step, after executing holdback clutch in processing step or alternative steps, gearbox control system trial is restarted, and (clutch has been disengaged at this time, it must restart after manual power cutoff), it is capable of handling the failure of gas pedal, avoids driver alarmed, reduces security risk.
Description
Technical field
The present invention relates to the fault handling method of gas pedal and gearbox control systems.
Background technique
Gas pedal failure is detected as two parts, and a part refers to gearbox control system (TCU) to transmission hardware
Real-time monitoring is carried out with signal, judges whether it is normal rationally；Another part refer to gearbox break down after (hardware damage or
Person's invalidating signal) some failure counter-measures for being made of transmission system, such as light trouble light, holdback clutch, into lame
Row mode etc..
Accelerator pedal position signal, from the received signal of engine control system (ECU), is to guarantee vehicle as TCU
The signal of interest of normally travel, but gas pedal has certain service life as electronic product, prolonged use inevitably can
There is certain failure, it is invalid signals that TCU, which is possible to the accelerator pedal position signal received, at this time, and vehicle will enter event
Barrier mode, gearbox can not work normally, and vehicle is possible to will appear acceleration or holdback clutch suddenly and loses dynamic at this time
The phenomenon that power, accelerates suddenly especially in running at high speed and stops suddenly, all constitutes pole for the safety of driver and passenger and vehicle
The earth threatens.
Processing mode after occurring in vain in terms of dual-clutch transmission TCU about accelerator pedal position signal at present
No matter being that all can directly disengage clutch under which kind of operating condition when the accelerator pedal position signal that the ECU that TCU is received is sent is invalid
Device makes vehicle be in neutral position sliding state, restores normal rear vehicle in accelerator pedal position signal and is in neutral state, TCU
Primary (power off and realize by vehicle) vehicle, which must be restarted, can just restore normal.This driving brings very big security risk.
Summary of the invention
The object of the present invention is to provide a kind of gearbox control systems of the fault handling method sum of gas pedal, can locate
The failure for managing gas pedal, avoids driver alarmed, reduces security risk.
The fault handling method of gas pedal of the invention, comprising: judgment step obtains accelerator pedal position signal, and
Judge validity, effectively then enter rate-determining steps, vehicle driving is controlled according to the accelerator pedal position signal, is then entered in vain
Next step；Processing step obtains current vehicle speed when the judgment step judges that the accelerator pedal position signal is invalid,
And compared with threshold speed, otherwise holdback clutch when current vehicle speed is lower than the threshold speed enters next step；Substitution step
Suddenly, when current vehicle speed is more than or equal to the threshold speed, gas pedal analog signal is sent, and verifies the gas pedal simulation
The validity of signal effectively then returns to the judgment step, while the rate-determining steps are according to the gas pedal analog signal
Vehicle driving is controlled, the clutch is otherwise disengaged；Reboot step is executed when in the processing step or the alternative steps
After disengaging the clutch, gearbox control system trial is restarted.
The fault handling method of gas pedal as described above, wherein the judgment step is including first judgement and again
Judgement；The first judgement are as follows: judge the validity of accelerator pedal position signal, effectively then enter rate-determining steps, according to described
Accelerator pedal position signal controls vehicle driving, otherwise enters and judges again；It is described to judge again are as follows: to obtain gas pedal position
The period of confidence number is T1, and the filtering time with gearbox control system is T2, when T1 is greater than T2, judges that the throttle is stepped on
Board position signal is to enter the processing step in vain.
The fault handling method of gas pedal as described above, wherein before entering the processing step, also carry out failure
Report.
The fault handling method of gas pedal as described above, wherein further include: monitoring step, when the alternative steps
Continuous n times return to the judgment step, then gradually decrease speed.
The fault handling method of gas pedal as described above, wherein n is more than or equal to 3.
Gearbox control system of the invention, comprising: judging unit is used for, and obtains accelerator pedal position signal, and judge
Validity, effectively then enters control unit, and described control unit is used to control vehicle row according to the accelerator pedal position signal
It sails；Processing unit for obtaining current vehicle speed when accelerator pedal position signal is invalid, and compared with threshold speed, works as front truck
Holdback clutch when speed is lower than the threshold speed；Substituting unit is used for when current vehicle speed is more than or equal to the threshold speed,
Gas pedal analog signal is sent, and verifies the validity of the gas pedal analog signal, effectively then by the gas pedal
Analog signal is sent to described control unit, and described control unit is also used to control vehicle according to the gas pedal analog signal
Traveling, meanwhile, the judging unit is started to work；It is invalid then disengage the clutch；Unit is restarted, for when the processing list
It is executed in the first or described substituting unit after disengaging the clutch, gearbox control system trial is restarted.
Gearbox control system as described above, wherein the judging unit includes first judging unit and judges again
Unit；The first judging unit is used to judge the validity of accelerator pedal position signal, effectively then enters rate-determining steps, according to
The accelerator pedal position signal controls vehicle driving, otherwise enters and judges again；The judging unit again is for when obtaining
Between, to obtain the period of accelerator pedal position signal as T1, the filtering time with gearbox control system is T2, when T1 is greater than
When T2, judge that the accelerator pedal position signal is invalid.
Gearbox control system as described above, wherein further include: monitoring unit, for working as the continuous n of the judging unit
It is secondary when starting to work in the effective situation that the substituting unit verifies the gas pedal analog signal, then gradually decrease vehicle
Speed.
In method of the invention, it can judge that cut-off clutch still enters alternative steps according to speed in processing step, when
When speed is higher than threshold speed, alternative steps can be entered, and alternative steps can generate gas pedal analog signal, the signal is effective
In the case where can temporarily substitute accelerator pedal position signal, controlled, avoided straight in the prior art with spending the traveling of vehicle
Holdback clutch is connect, makes driver panic or immediate system restarts bring security risk.
Detailed description of the invention
Fig. 1 is the flow chart of the fault handling method of gas pedal of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
The present invention discloses a kind of fault handling method of gas pedal, this method comprises: judgment step S1, processing step
This five big step of S2, alternative steps S3, reboot step S4 and rate-determining steps S5, wherein judgment step S1 is to obtain gas pedal
Position signal, and judge the validity of the accelerator pedal position signal, rate-determining steps S5, rate-determining steps are entered if effectively
S5 can control vehicle driving according to the effective accelerator pedal position signal, that is, according to accelerator pedal position signal at that time
Included content, to control the amount of vehicle " oiling ".
If above-mentioned accelerator pedal position signal is invalid, enter processing step S2, in processing step S2, acquisition is worked as
Preceding speed, and compared with threshold speed, holdback clutch when current vehicle speed is lower than the threshold speed avoids existing in this way
In technology when the vehicle is driving at high speed, if it find that accelerator pedal position signal is invalid, vehicle powers off bring to lose control of one's vehicle
Risk.In this step, if current vehicle speed is optionally greater than threshold speed, into alternative steps S3.
In alternative steps S3, gas pedal analog signal is sent, and verify the validity of the gas pedal analog signal,
It is effective then return to the judgment step, while the rate-determining steps control vehicle driving according to the gas pedal analog signal.
Gas pedal analog signal is the analog signal formed according to a variety of information summaries such as current vehicle speed, form road conditions,
The signal purport of this simulation is temporary substitution accelerator pedal position signal, it is panic to avoid driver, and bring unfavorable peace
Umbra is rung, and on the whole, which will not actively increase " throttle ", that is, the acceleration of vehicle will not be allowed to become
Must be bigger, the gas pedal analog signal will guarantee that vehicle keeps present speed or gradually slows down in other words.
When the pedal analog signal is effective, which can be sent to rate-determining steps S5, and at this moment then basis should by rate-determining steps S5
Pedal analog signal controls vehicle driving.It can be seen that rate-determining steps S5 can respond pedal position signal and pedal analog signal this two
A signal, certainly, from above-mentioned steps it can also be seen that the two signals will not occur simultaneously.
Corresponding above-mentioned gas pedal analog signal is effective, if the invalidating signal, holdback clutch.
The disengagement clutch involved in reboot step S4, corresponding above-mentioned processing step S2 or alternative steps S3, nothing
By the operation of holdback clutch is performed in above-mentioned processing step S2 or alternative steps S3, this reboot step S4 is all carried out, it should
Step is that gearbox control system trial is restarted.
It is to be understood that can not directly guarantee that gearbox control system can restart, and can only be tasted in reboot step S4
Examination, if conditions permit is likely to carry out reboot operation.In actual use, clutch has been disengaged, generally must manual power cutoff
After restarted.
Preferably, before entering the processing step S2, also progress Trouble Report, such as prompt this to ask in information panel
Topic or " the double sudden strains of a muscle " of automatically starting vehicle etc..Certainly, just continuously display if above-mentioned reboot step S4 does not succeed
The Trouble Report.But, the above-mentioned method of the present invention is not Exactly-once, can be real-time perfoming, if it is subsequent into
When row, it is found that the failure of accelerator pedal signal has solved, then Trouble Report just stops showing.
Step S1 is judged as below to be further detailed, preferably include it is two small step by step: first judgement
S11 and S12 is judged again.
S11 is judged for the first time are as follows: is judged the validity of accelerator pedal position signal, is effectively then entered rate-determining steps, according to institute
Accelerator pedal position signal control vehicle driving is stated, otherwise enters and judges again；This step be exactly directly to accelerator pedal position into
Row judgement.Not directly into processing step S2 after being but judged as invalid, but enter and judge S12 again, judges again are as follows:
To obtain the period of accelerator pedal position signal as T1, the filtering time with gearbox control system is T2, when T1 is greater than T2
When, judge the accelerator pedal position signal be it is invalid, into the processing step.And if T1 is less than or equal to T2, at this moment may be used
Effective accelerator pedal position signal can not got due to the time difference, wouldn't be judged as failure, such case is general
Normal vehicle operation, due to whole flow process be circulation carry out, can wait next time verifying, that is to say, that T1 be less than etc.
" accelerator pedal position signal " invalid judgement is not done when T2.
Further, the invention also includes monitoring step, when the continuous n times of the alternative steps return to the judgment step, then
Gradually decrease speed.N is more than or equal to 3.
Invention additionally discloses a kind of gearbox control systems, comprising: judging unit, for obtaining accelerator pedal position letter
Number, and judge validity, effectively then enter control unit, described control unit is used for according to the accelerator pedal position signal control
Vehicle driving processed；Processing unit obtains current vehicle speed for when accelerator pedal position signal is invalid, and with threshold speed ratio
Compared with holdback clutch when current vehicle speed is lower than the threshold speed；Substituting unit, for being more than or equal to the door in current vehicle speed
When sill speed, gas pedal analog signal is sent, and verify the validity of the gas pedal analog signal, it effectively then will be described
Gas pedal analog signal is sent to described control unit, and described control unit is also used to according to the gas pedal analog signal
Vehicle driving is controlled, meanwhile, the judging unit is started to work；It is invalid then disengage the clutch；Unit is restarted, for working as institute
It states after executing the disengagement clutch in processing unit or the substituting unit, gearbox control system trial is restarted.
The judging unit includes first judging unit and judging unit again；The first judging unit is for judging oil
The validity of door pedal position signal, effectively then enters rate-determining steps, controls vehicle row according to the accelerator pedal position signal
It sails, otherwise enters and judge again；The judging unit again is used for acquisition time, to obtain the time of accelerator pedal position signal
Section is T1, and the filtering time with gearbox control system is T2, when T1 is less than or equal to T2, judges the accelerator pedal position letter
It number is invalid.Further include: monitoring unit, for verifying the throttle in the substituting unit when the continuous n times of the judging unit
When starting to work in the effective situation of pedal analog signal, then speed is gradually decreased.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (6)
1. a kind of fault handling method of gas pedal characterized by comprising
Judgment step obtains accelerator pedal position signal, and judges validity, effectively then enters rate-determining steps, according to the oil
Door pedal position signal controls vehicle driving, then enters next step in vain；
Processing step, when the judgment step judges that the accelerator pedal position signal is invalid, obtain current vehicle speed, and with door
Sill speed compares, otherwise holdback clutch when current vehicle speed is lower than the threshold speed enters next step；
Alternative steps when current vehicle speed is more than or equal to the threshold speed, send gas pedal analog signal, and verify the oil
The validity of door pedal analog signal, effectively then returns to the judgment step, while the rate-determining steps are stepped on according to the throttle
Plate analog signal controls vehicle driving, otherwise disengages the clutch；
Reboot step, after executing the disengagement clutch in the processing step or the alternative steps, gearbox control
System trial is restarted；
The judgment step includes first judgement and judges again；
The first judgement are as follows: judge the validity of accelerator pedal position signal, effectively then enter rate-determining steps, according to the oil
Door pedal position signal controls vehicle driving, otherwise enters and judges again；
It is described to judge again are as follows: to obtain the period of accelerator pedal position signal for T1, with the filtering of gearbox control system
Time is T2, when T1 is greater than T2, judges the accelerator pedal position signal to enter the processing step in vain.
2. the fault handling method of gas pedal according to claim 1, which is characterized in that
Before entering the processing step, also progress Trouble Report.
3. the fault handling method of gas pedal according to claim 1, which is characterized in that further include:
Monitoring step then gradually decreases speed when the alternative steps continuous n times return judgment step.
4. the fault handling method of gas pedal according to claim 3, which is characterized in that
N is more than or equal to 3.
5. a kind of gearbox control system characterized by comprising
Judging unit is used for, and obtains accelerator pedal position signal, and judge validity, effectively then enters control unit, the control
Unit processed is used to control vehicle driving according to the accelerator pedal position signal；
Processing unit, for obtaining current vehicle speed, and compared with threshold speed, currently when accelerator pedal position signal is invalid
Holdback clutch when speed is lower than the threshold speed；
Substituting unit, for sending gas pedal analog signal, and verify when current vehicle speed is more than or equal to the threshold speed
The validity of the gas pedal analog signal effectively then sends described control unit for the gas pedal analog signal,
Described control unit is also used to control vehicle driving according to the gas pedal analog signal, meanwhile, the judging unit starts
Work；It is invalid then disengage the clutch；
Restart unit, is used for after executing the disengagement clutch in the processing unit or the substituting unit, gearbox
Control system trial is restarted；
The judging unit includes first judging unit and judging unit again；
The first judging unit is used to judge the validity of accelerator pedal position signal, effectively then enters rate-determining steps, according to
The accelerator pedal position signal controls vehicle driving, otherwise enters and judges again；
The judging unit again is used for acquisition time, to obtain the period of accelerator pedal position signal for T1, with gearbox
The filtering time of control system is T2, when T1 is greater than T2, judges that the accelerator pedal position signal is invalid.
6. gearbox control system according to claim 5, which is characterized in that further include:
Monitoring unit, for verifying the gas pedal analog signal in the substituting unit when the continuous n times of the judging unit
Effective situation under when starting to work, then gradually decrease speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157532.4A CN108361368B (en) | 2018-02-24 | 2018-02-24 | The fault handling method and gearbox control system of gas pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157532.4A CN108361368B (en) | 2018-02-24 | 2018-02-24 | The fault handling method and gearbox control system of gas pedal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108361368A CN108361368A (en) | 2018-08-03 |
| CN108361368B true CN108361368B (en) | 2019-05-28 |
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| CN201810157532.4A Expired - Fee Related CN108361368B (en) | 2018-02-24 | 2018-02-24 | The fault handling method and gearbox control system of gas pedal |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435933B (en) * | 2018-10-12 | 2020-07-28 | 安徽江淮汽车集团股份有限公司 | Brake fault control method |
| CN112109648B (en) * | 2020-09-30 | 2022-04-22 | 北京车和家信息技术有限公司 | Method for detecting clamping stagnation of accelerator pedal and vehicle control unit |
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| CN101947939A (en) * | 2010-09-30 | 2011-01-19 | 重庆长安汽车股份有限公司 | Method for diagnosing and processing faults of accelerator pedal of medium hybrid electric vehicle |
| CN102901639A (en) * | 2012-09-29 | 2013-01-30 | 北京智行鸿远汽车技术有限公司 | Method for diagnosing accelerator pedal of hybrid power vehicle |
| CN105857073A (en) * | 2016-05-11 | 2016-08-17 | 郑州宇通客车股份有限公司 | Accelerator pedal and accelerator pedal signal control method |
| CN106089459A (en) * | 2016-07-25 | 2016-11-09 | 潍柴动力股份有限公司 | A kind of method of electric-control motor gas pedal characteristic self study |
| CN106402370A (en) * | 2016-12-02 | 2017-02-15 | 安徽江淮汽车集团股份有限公司 | Fault treatment method and system of automatic transmission accelerator pedal |
| CN107107918A (en) * | 2015-01-05 | 2017-08-29 | 标致·雪铁龙汽车公司 | The detection method and detection means of the operation troubles of vehicle accelerator pedal are detected by examining the use of clutch pedal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493618B2 (en) * | 2000-03-15 | 2002-12-10 | Toyota Jidosha Kabushiki Kaisha | Vehicle control using multiple sensors |
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2018
- 2018-02-24 CN CN201810157532.4A patent/CN108361368B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947939A (en) * | 2010-09-30 | 2011-01-19 | 重庆长安汽车股份有限公司 | Method for diagnosing and processing faults of accelerator pedal of medium hybrid electric vehicle |
| CN102901639A (en) * | 2012-09-29 | 2013-01-30 | 北京智行鸿远汽车技术有限公司 | Method for diagnosing accelerator pedal of hybrid power vehicle |
| CN107107918A (en) * | 2015-01-05 | 2017-08-29 | 标致·雪铁龙汽车公司 | The detection method and detection means of the operation troubles of vehicle accelerator pedal are detected by examining the use of clutch pedal |
| CN105857073A (en) * | 2016-05-11 | 2016-08-17 | 郑州宇通客车股份有限公司 | Accelerator pedal and accelerator pedal signal control method |
| CN106089459A (en) * | 2016-07-25 | 2016-11-09 | 潍柴动力股份有限公司 | A kind of method of electric-control motor gas pedal characteristic self study |
| CN106402370A (en) * | 2016-12-02 | 2017-02-15 | 安徽江淮汽车集团股份有限公司 | Fault treatment method and system of automatic transmission accelerator pedal |
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| CN108361368A (en) | 2018-08-03 |
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Inventor after: Congcheng Gang Inventor after: Luo Xianhu Inventor after: Tu Anquan Inventor after: Zhang Jinchao Inventor after: Zhang Xuefeng Inventor after: Li Xing Inventor before: Luo Xianhu Inventor before: Tu Anquan Inventor before: Zhang Jinchao Inventor before: Zhang Xuefeng Inventor before: Li Xing |
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Granted publication date: 20190528 |