CN104340200B - A kind of diagnostic method of brake pedal position sensor fault - Google Patents
A kind of diagnostic method of brake pedal position sensor fault Download PDFInfo
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- CN104340200B CN104340200B CN201310333356.2A CN201310333356A CN104340200B CN 104340200 B CN104340200 B CN 104340200B CN 201310333356 A CN201310333356 A CN 201310333356A CN 104340200 B CN104340200 B CN 104340200B
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- position sensor
- brake pedal
- pedal position
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- 238000002405 diagnostic procedure Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Elements And Transmission Devices (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The present invention relates to the diagnostic method of a kind of brake pedal position sensor fault.The method includes successively: using braking light switch signal as reference signal, the second moving average of brake pedal position sensor when gathering the first moving average of brake pedal position sensor when braking light switch disconnects and collect braking light switch Guan Bi；Judge whether the difference between the first moving average and the second moving average is less than the first predetermined threshold, and be judged as fault in the case of difference is less than the first predetermined threshold；In the case of being judged as that difference is less than the first predetermined threshold, add 1 by accumulative for the number of stoppages, in the case of being judged as that difference is not less than the first predetermined threshold, the number of stoppages is reset；The number of stoppages that judgement adds up, whether more than or equal to the second predetermined threshold, is judged as brake pedal position sensor fault in the case of the number of stoppages that judgement is accumulative is more than or equal to the second predetermined threshold.In accordance with the invention it is possible to detect the fault of brake pedal position sensor and driver can be notified correctly, in time.
Description
Technical field
The present invention relates to new-energy automobile dynamical system fault diagnosis field, the diagnostic method blocked more particularly to a kind of brake pedal position sensor.
Background technology
In the prior art, along with the attention of energy security and environmental protection problem is constantly promoted by the world, automotive emissions are required more and more stricter by various countries.Reduce the dependence to the energy, it is achieved energy-saving and emission-reduction, it has also become the problem that World Economics sustainable development is in the urgent need to address.Hybrid vehicle, pure electric automobile have become the trend of current car industry development.
In hybrid vehicle, pure electric automobile field, the stroke of pedal is converted into voltage signal output by brake pedal position sensor, affects the functions such as car load torque demand, regenerative braking.If this sensor blocks, the voltage signal i.e. exported does not changes with the change of pedal travel, will certainly cause serious safety problem.Therefore, fault it is diagnosed to be in time by control software most important.
Summary of the invention
In view of the above problems, it is desirable to provide a kind of the invention discloses the diagnostic method that a kind of brake pedal position sensor is blocked, it is possible to detect whether the output of brake pedal position sensor is stuck near some value.Brake signal affects the running status of car load, and therefore, the present invention ensure that car load runs under controlled conditions.
The diagnostic method of the brake pedal position sensor fault of the present invention, it is characterised in that include successively:
Acquisition step, using braking light switch signal as reference signal, the second moving average of brake pedal position sensor when the first moving average of brake pedal position sensor when gathering braking light switch disconnection and braking light switch close；
Comparison step, it is judged that whether the difference between described first moving average and described second moving average is less than the first predetermined threshold, and is judged as fault in the case of described difference is less than the first predetermined threshold；
Counting step, is judged as that described difference, less than in the case of the first predetermined threshold, adds 1 by accumulative for the number of stoppages in the comparison step, is judged as that the number of stoppages, not less than in the case of the first predetermined threshold, is reset by described difference in the comparison step；
Judge step, it is judged that the accumulative number of stoppages in described counting step, whether more than or equal to the second predetermined threshold, is judged as brake pedal position sensor fault in the case of the accumulative number of stoppages of judgement is more than or equal to the second predetermined threshold.
Preferably, in described acquisition step, moving average filtering method is utilized to calculate the first moving average at the appointed time and the second moving average respectively.
Preferably, in described acquisition step, the process calculating the first moving average includes:
Brake pedal position sensor signal when being disconnected by braking light switch is as gathering data, regard N number of for continuous print collection data as a queue, after new one-shot measurement, the first data of above-mentioned queue are removed, remaining N-1 data moves forward successively, and new sampled data is inserted, as the tail of new queue, wherein N is natural number；And
This above-mentioned queue is carried out arithmetical operation, and using its result as the first moving average,
Preferably, in described acquisition step, the process calculating the second moving average includes:
Brake pedal position sensor signal when being closed by braking light switch is as gathering data, regard N number of for continuous print collection data as a queue, after new one-shot measurement, the first data of above-mentioned queue are removed, remaining N-1 data moves forward successively, and new sampled data is inserted, as the tail of new queue, wherein N is natural number；And
This above-mentioned queue is carried out arithmetical operation, and using its result as the second moving average.
Preferably, it was also equipped with before described acquisition step:
Preparation process, it may be judged whether meet conditions for diagnostics, carries out subsequent step on the basis of judging to meet conditions for diagnostics.
Preferably, in described preparation process, by judging that brake pedal position sensor the most effectively carries out meeting the judgement of conditions for diagnostics.
Preferably, in described judgement step, it is judged that in the case of brake pedal position sensor fault, prompting operator brake pedal position sensor breaks down.
Preferably, in described judgement step, in the case of the accumulative number of stoppages of judgement is less than the second predetermined threshold, return to described preparation process.
The diagnostic method of the brake pedal position sensor fault according to the present invention, the fault of brake pedal position sensor can not only be detected, and sporadic operating mode can be got rid of by the number of stoppages is counted, and malfunction can be notified driver the most in time, it is possible to ensure the safety of car load.
Accompanying drawing explanation
The graph of a relation of brake position signal when brake position signal when Fig. 1 is to represent normal and fault and brake switch signal.
Fig. 2 is the flow chart of the diagnostic method of the brake pedal position sensor fault representing the present invention.
Detailed description of the invention
Be described below be the present invention multiple embodiments in some, it is desirable to provide the basic understanding to the present invention.It is not intended as confirming the crucial of the present invention or conclusive key element or limiting scope of the claimed.
The graph of a relation of brake position sensor signal when brake position sensor signal when Fig. 1 is to represent normal and fault and braking light switch signal.
In the present invention, employing braking light switch signal is as reference signal, when record braking light switch disconnects and closes respectively, and the moving average of brake pedal position sensor.If two meansigma methodss are closely, then it is assumed that sensor has the possibility blocked.When the certain number of times of case above, it may be determined that have sensor to block fault.
Fig. 2 is the flow chart of the diagnostic method of the brake pedal position sensor fault representing the present invention.
Referring to Fig. 2, the diagnostic method of the brake pedal position sensor fault of the present invention is illustrated.
As in figure 2 it is shown, after flow process starts, first continue to determine whether to meet the preparation process of conditions for diagnostics.Conditions for diagnostics can include that the signal of sensor being correlated with is the most effective, such as judge that the signal of brake pedal position sensor is the most effective, subsequent step is proceeded, before returning to this preparation process in the case of sensor signal is invalid in the case of brake pedal position sensor signal is effective.
Then, in the case of preparation process judges that sensor signal is effective, meansigma methods when braking light switch signal is to disconnect (i.e. FALSE) is gathered as the first average movement value.
Here moving average filtering method is used to calculate the average movement value of first in the t time, specifically, brake pedal position sensor signal when being disconnected by braking light switch is as gathering data, regard N number of for continuous print collection data as a queue, after new one-shot measurement, the first data of above-mentioned queue are removed, remaining N-1 data moves forward successively, and new sampled data is inserted, as the tail of new queue, wherein N is natural number；This above-mentioned queue is carried out arithmetical operation, and using its result as the first moving average,
Then, gathering braking light switch signal is that meansigma methods during Guan Bi (i.e. TRUE) is as the second average movement value.
Here moving average filtering method is used to calculate the average movement value of second in the t time, specifically, brake pedal position sensor signal when being disconnected by braking light switch is as gathering data, regard N number of for continuous print collection data as a queue, after new one-shot measurement, the first data of above-mentioned queue are removed, remaining N-1 data moves forward successively, and new sampled data is inserted, as the tail of new queue, wherein N is natural number；This above-mentioned queue is carried out arithmetical operation, and using its result as the second moving average,
Then, two meansigma methodss that is first moving average and the second moving average are subtracted each other, it is judged that whether both differences are less than a certain limit value (i.e. mention in claim " the first predetermined threshold).If it is judged that be both differences less than in the case of this limit value, then failure counter adds 1 to the number of stoppages, if it is judged that for both difference not less than in the case of this limit value, then failure counter resets.
After failure counter adds 1 to the number of stoppages, judge that the cumulative number of enumerator is whether more than or equal to a certain limit value (i.e. mention in claim " the second predetermined threshold); if it is judged that in the case of being more than or equal to this limit value for stored count, quote malfunction to driver；If it is judged that for cumulative number less than the preparation process before the returning to of this limit value.
So, the diagnostic method of the brake pedal position sensor fault according to the above-mentioned present invention, the fault of brake pedal position sensor can not only be detected, and sporadic operating mode can be got rid of by the number of stoppages is counted, and malfunction can be notified driver the most in time, it is possible to ensure the safety of car load.
Example above primarily illustrates the diagnostic method of the brake pedal position sensor fault of the present invention.Although being only described the detailed description of the invention of the some of them present invention, but those of ordinary skill in the art are it is to be appreciated that the present invention can be implementing with other forms many with in scope without departing from its spirit.Therefore, the example shown and embodiment are considered illustrative and not restrictive, and in the case of without departing from spirit and scope of the present invention as defined in appended claims, the present invention may contain various amendments and replacement.
Claims (8)
1. the diagnostic method of a brake pedal position sensor fault, it is characterised in that include successively:
Acquisition step, using braking light switch signal as reference signal, the second moving average of brake pedal position sensor when the first moving average of brake pedal position sensor when gathering braking light switch disconnection and braking light switch close；
Comparison step, it is judged that whether the difference between described first moving average and described second moving average is less than the first predetermined threshold, and is judged as fault in the case of described difference is less than the first predetermined threshold；
Counting step, is judged as that described difference, less than in the case of the first predetermined threshold, adds 1 by accumulative for the number of stoppages in the comparison step, is judged as that the number of stoppages, not less than in the case of the first predetermined threshold, is reset by described difference in the comparison step；
Judge step, it is judged that the accumulative number of stoppages in described counting step, whether more than or equal to the second predetermined threshold, is judged as brake pedal position sensor fault in the case of the accumulative number of stoppages of judgement is more than or equal to the second predetermined threshold.
2. the diagnostic method of brake pedal position sensor fault as claimed in claim 1, it is characterised in that
In described acquisition step, moving average filtering method is utilized to calculate the first moving average at the appointed time and the second moving average respectively.
3. the diagnostic method of brake pedal position sensor fault as claimed in claim 1, it is characterised in that
In described acquisition step, the process calculating the first moving average includes:
Brake pedal position sensor signal when being disconnected by braking light switch is as gathering data, regard N number of for continuous print collection data as a queue, after new one-shot measurement, the first data of above-mentioned queue are removed, remaining N-1 data moves forward successively, and new sampled data is inserted, as the tail of new queue, wherein N is natural number；And
This above-mentioned queue is carried out arithmetical operation, and using its result as the first moving average.
4. the diagnostic method of the brake pedal position sensor fault as described in claims 1 to 3 any one, it is characterised in that
In described acquisition step, the process calculating the second moving average includes:
Brake pedal position sensor signal when being closed by braking light switch is as gathering data, regard N number of for continuous print collection data as a queue, after new one-shot measurement, the first data of above-mentioned queue are removed, remaining N-1 data moves forward successively, and new sampled data is inserted, as the tail of new queue, wherein N is natural number；And
This above-mentioned queue is carried out arithmetical operation, and using its result as the second moving average.
5. the diagnostic method of brake pedal position sensor fault as claimed in claim 4, it is characterised in that
It was also equipped with before described acquisition step:
Preparation process, it may be judged whether meet conditions for diagnostics, carries out subsequent step on the basis of judging to meet conditions for diagnostics.
6. the diagnostic method of brake pedal position sensor fault as claimed in claim 5, it is characterised in that
In described preparation process, by judging that brake pedal position sensor the most effectively carries out meeting the judgement of conditions for diagnostics.
7. the diagnostic method of brake pedal position sensor fault as claimed in claim 6, it is characterised in that
In described judgement step, it is judged that in the case of brake pedal position sensor fault, prompting operator brake pedal position sensor breaks down.
8. the diagnostic method of brake pedal position sensor fault as claimed in claim 7, it is characterised in that
In described judgement step, in the case of the accumulative number of stoppages of judgement is less than the second predetermined threshold, return to described preparation process.
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| CN201310333356.2A CN104340200B (en) | 2013-08-02 | 2013-08-02 | A kind of diagnostic method of brake pedal position sensor fault |
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| CN201310333356.2A CN104340200B (en) | 2013-08-02 | 2013-08-02 | A kind of diagnostic method of brake pedal position sensor fault |
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| CN104340200A CN104340200A (en) | 2015-02-11 |
| CN104340200B true CN104340200B (en) | 2016-12-28 |
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| CN105910732A (en) * | 2016-04-14 | 2016-08-31 | 广东美的暖通设备有限公司 | Accurate drift fault detection method and system of temperature sensor, and air conditioner |
| CN106354141B (en) * | 2016-11-02 | 2019-09-13 | 北京汽车集团有限公司 | A kind of Ride Control System and method |
| CN106961470A (en) * | 2017-03-01 | 2017-07-18 | 深圳市海派通讯科技有限公司 | A kind of exchange method of remote control intelligent terminal |
| CN109373945A (en) * | 2018-09-20 | 2019-02-22 | 北京海纳川汽车部件股份有限公司 | The position sensor test device and vehicle testing system of pedal of vehicles |
| CN110774993B (en) * | 2019-02-27 | 2021-03-26 | 长城汽车股份有限公司 | Vehicle fault detection method and device and vehicle |
| CN110103931B (en) * | 2019-04-28 | 2024-01-19 | 北京百度网讯科技有限公司 | Method and device for detecting abnormal braking of vehicle |
| CN110194139B (en) * | 2019-05-29 | 2021-01-29 | 中国第一汽车股份有限公司 | Brake test state determining method and device and vehicle |
| CN110239503B (en) * | 2019-06-28 | 2020-06-16 | 三一海洋重工有限公司 | Brake control alarm method and brake control system |
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| CN115946673B (en) * | 2022-12-28 | 2024-04-19 | 重庆赛力斯凤凰智创科技有限公司 | Fault diagnosis method, system, equipment and medium for automobile brake |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10037495A1 (en) * | 2000-08-01 | 2002-03-07 | Siemens Ag | Method for detection of a sensor fault, especially a Hall sensor fault or open circuit condition caused by a connection breakage in which a voltage transient is applied to the circuit input and an output signal analyzed for faults |
| CN1837998A (en) * | 2005-03-10 | 2006-09-27 | 通用汽车环球科技运作公司 | Vehicle control system for detecting a short-circuit condition between redundant position sensors |
| DE102005052261A1 (en) * | 2005-11-02 | 2007-05-03 | Robert Bosch Gmbh | Determining method e.g. for defect sensor elements of sensor arrangement, involves having four sensor elements which are switched into row as first and second group |
| CN101629526A (en) * | 2008-07-14 | 2010-01-20 | 华夏龙晖（北京）汽车电子科技有限公司 | Method for diagnosing and processing fault of throttle position sensor |
| CN201885747U (en) * | 2010-11-30 | 2011-06-29 | 力帆实业(集团)股份有限公司 | Detecting device for throttling valve position sensors |
| CN102607629A (en) * | 2011-01-21 | 2012-07-25 | 通用汽车环球科技运作有限责任公司 | Method of detecting an in-range failure of a brake pedal position sensor |
| CN102733982A (en) * | 2011-04-13 | 2012-10-17 | 通用汽车环球科技运作有限责任公司 | System and method for calibration and fault detection of non-contact position sensor |
| CN103052548A (en) * | 2010-08-04 | 2013-04-17 | 丰田自动车株式会社 | Stroke sensor malfunction determination device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4924407B2 (en) * | 2007-12-25 | 2012-04-25 | 富士通株式会社 | Sensor diagnostic method and sensor diagnostic apparatus |
| US8280603B2 (en) * | 2009-03-09 | 2012-10-02 | Goodrich Corporation | System and method to determine brake pedal sensor failure |
-
2013
- 2013-08-02 CN CN201310333356.2A patent/CN104340200B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10037495A1 (en) * | 2000-08-01 | 2002-03-07 | Siemens Ag | Method for detection of a sensor fault, especially a Hall sensor fault or open circuit condition caused by a connection breakage in which a voltage transient is applied to the circuit input and an output signal analyzed for faults |
| CN1837998A (en) * | 2005-03-10 | 2006-09-27 | 通用汽车环球科技运作公司 | Vehicle control system for detecting a short-circuit condition between redundant position sensors |
| DE102005052261A1 (en) * | 2005-11-02 | 2007-05-03 | Robert Bosch Gmbh | Determining method e.g. for defect sensor elements of sensor arrangement, involves having four sensor elements which are switched into row as first and second group |
| CN101629526A (en) * | 2008-07-14 | 2010-01-20 | 华夏龙晖（北京）汽车电子科技有限公司 | Method for diagnosing and processing fault of throttle position sensor |
| CN103052548A (en) * | 2010-08-04 | 2013-04-17 | 丰田自动车株式会社 | Stroke sensor malfunction determination device |
| CN201885747U (en) * | 2010-11-30 | 2011-06-29 | 力帆实业(集团)股份有限公司 | Detecting device for throttling valve position sensors |
| CN102607629A (en) * | 2011-01-21 | 2012-07-25 | 通用汽车环球科技运作有限责任公司 | Method of detecting an in-range failure of a brake pedal position sensor |
| CN102733982A (en) * | 2011-04-13 | 2012-10-17 | 通用汽车环球科技运作有限责任公司 | System and method for calibration and fault detection of non-contact position sensor |
Non-Patent Citations (1)
| Title |
|---|
| 混合动力汽车制动踏板位移传感器的故障诊断;朱明等;《汽车电器》;20110430(第4期);第31-33页 * |
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