CN104276106B - Accelerator pedal zero value fault diagnosis method for hybrid vehicles/blade electric vehicles - Google Patents
Accelerator pedal zero value fault diagnosis method for hybrid vehicles/blade electric vehicles Download PDFInfo
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- CN104276106B CN104276106B CN201310276314.XA CN201310276314A CN104276106B CN 104276106 B CN104276106 B CN 104276106B CN 201310276314 A CN201310276314 A CN 201310276314A CN 104276106 B CN104276106 B CN 104276106B
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- Prior art keywords
- accelerator pedal
- zero point
- point value
- stroke
- fault diagnosis
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
Abstract
The invention provides an accelerator pedal zero value fault diagnosis method for hybrid vehicles/blade electric vehicles. The method includes the steps of monitoring an accelerator pedal position signal to determine the stroke of an accelerator pedal at the moment when the vehicle gear is switched to an advancing gear from a parking gear, and executing the accelerator pedal zero value fault diagnosis operation on the basis of the determined stroke of the accelerator pedal. By means of the method, the deviation between the actual zero value and the current accelerator pedal self-learning zero value of the accelerator pedal can be detected in time, and the vehicle driving safety can be improved.
Description
Technical field
The present invention relates to accelerator pedal zero point value method for diagnosing faults, more particularly, to for hybrid power/pure electronic
The accelerator pedal zero point value method for diagnosing faults of vehicle.
Background technology
Currently, with the growing of pure electric/hybrid vehicle and popularization, the drive safety of vehicle becomes more next
It is more important.Wherein, the initial zero value of accelerator pedal can be determined during vehicle production by the mode of self study（Accelerate
The origin of pedal（Or basic point）Position）, and store it in EEPROM memory cell.
However, with the increase of VMT Vehicle-Miles of Travel, accelerator pedal is likely to occur senile abrasion state, so that accelerator pedal
Actual zero point value and the initial zero value that determines during vehicle production between there is deviation, so as to cause moment of torsion parsing
Deviation, and and then affect drive safety.
Accordingly, there exist following demand：Offer can detect the actual zero point value of accelerator pedal and current accelerator pedal in time
Self study zero point value（The initial value of current accelerator pedal self study zero point value be it is described determine during vehicle production it is initial
Zero point value）Between deviation improving the accelerator pedal zero point for hybrid power/pure electric vehicle of vehicle drive security
Value method for diagnosing faults.
The content of the invention
In order to solve the problems of above-mentioned prior art, the present invention is proposed and can detect accelerator pedal in time
Actual zero point value and current accelerator pedal self study zero point value between deviation with improve vehicle drive security for mixing
Close the accelerator pedal zero point value method for diagnosing faults of power/pure electric vehicle.
The purpose of the present invention is achieved through the following technical solutions：
A kind of accelerator pedal zero point value method for diagnosing faults for hybrid power/pure electric vehicle, methods described include
The following steps：
（A1）When vehicle gear is switched to forward gear by parking shift, monitoring acceleration pedal position signal now add with being determined
The stroke of speed pedal；
（A2）The stroke of accelerator pedal based on determined by performs the operation of accelerator pedal zero point value fault diagnosis.
In scheme disclosed above, it is preferable that the accelerator pedal zero point value fault diagnosis operation includes：
（1）Determine whether the stroke of accelerator pedal is less than first threshold and determines the stroke of accelerator pedal and work as preacceleration
Whether the absolute value of the difference between pedal self study zero point value is less than Second Threshold, and if the stroke of accelerator pedal is less than
The absolute value of the difference between the stroke and current accelerator pedal self study zero point value of the first threshold and accelerator pedal is little
In the Second Threshold, then fault diagnosis operation terminates and diagnostic result is " fault-free ", otherwise, into step（2）；
（2）Perform one or more in following operation：Determine the stroke of accelerator pedal and current accelerator pedal self study
Whether the difference between zero point value is more than the 3rd threshold value（It is on the occasion of）, and if the stroke of accelerator pedal with step on when preacceleration
Difference between plate self study zero point value is more than the 3rd threshold value, then fault diagnosis operation terminates and diagnostic result is for " sending out
Raw failure "；Determine the difference between the stroke of accelerator pedal and current accelerator pedal self study zero point value whether less than the 4th threshold
Value（Which is negative value）, and if the difference between the stroke of accelerator pedal and current accelerator pedal self study zero point value is less than institute
The 4th threshold value is stated, then fault diagnosis operation terminates and diagnostic result is " breaking down "；It is determined that current accelerator pedal self study
Whether zero point value is equal to 0, and if current accelerator pedal self study zero point value is equal to 0, then fault diagnosis operation terminate and
Diagnostic result is " breaking down "；
Wherein, the accelerator pedal zero point value fault diagnosis operation is further included：If performing the step（1）
And/or the step（2）Diagnostic result is not " fault-free " or " breaking down " afterwards, then fault diagnosis operation terminates and examines
Disconnected result is " keeping a upper diagnostic result ".
In scheme disclosed above, it is preferable that methods described is further included：If diagnostic result is " generation event
Barrier ", then subsequently perform corresponding response operation to process occurred failure.
Accelerator pedal zero point value method for diagnosing faults for hybrid power/pure electric vehicle disclosed in this invention has
Advantages below：The deviation actual zero point value of accelerator pedal and current accelerator pedal self study zero point value between is detected in time can
And thus judge whether to break down, so as to considerably improve the drive safety of vehicle.
Description of the drawings
With reference to accompanying drawing, the technical characteristic and advantage of the present invention will be more fully understood by those skilled in the art, wherein：
Fig. 1 is the accelerator pedal zero point value failure for being used for hybrid power/pure electric vehicle according to an embodiment of the invention
The flow chart of diagnostic method.
Specific embodiment
Fig. 1 is the accelerator pedal zero point value failure for being used for hybrid power/pure electric vehicle according to an embodiment of the invention
The flow chart of diagnostic method.As shown in figure 1, the accelerator pedal zero for hybrid power/pure electric vehicle disclosed in this invention
Point value method for diagnosing faults comprises the following steps：（A1）In vehicle gear by parking shift（That is P keeps off）It is switched to forward gear（That is D keeps off）
When, monitor acceleration pedal position signal to determine the stroke of now accelerator pedal；（A2）The row of accelerator pedal based on determined by
Cheng Zhihang accelerator pedal zero point values fault diagnosis is operated.
Preferably, examine in the accelerator pedal zero point value failure for hybrid power/pure electric vehicle disclosed in this invention
In disconnected method, the accelerator pedal zero point value fault diagnosis operation includes：（1）Determine the stroke of accelerator pedal whether less than first
Threshold value（The first threshold can be determined by way of Experimental Calibration or configuration file）And determine the row of accelerator pedal
Journey and current accelerator pedal self study zero point value（The initial value for deserving preacceleration pedal self study zero point value is in vehicle production mistake
The initial zero value determined in journey）Between the absolute value of difference whether be less than Second Threshold（The Second Threshold can be by examination
Standard inspection is fixed or the mode of configuration file and be determined）, and if the stroke of accelerator pedal is less than the first threshold and adds
The absolute value of the difference between the stroke of speed pedal and current accelerator pedal self study zero point value is less than the Second Threshold, then event
Barrier diagnostic operation terminates and diagnostic result is " fault-free "（I.e. current accelerator pedal self study zero point value is in rational scope
It is interior）, otherwise, into step（2）；（2）Perform one or more in following operation：Determine that the stroke of accelerator pedal is added with current
Whether the difference between speed pedal self study zero point value is more than the 3rd threshold value（3rd threshold value can pass through Experimental Calibration or configuration
The mode of file and be determined, its be on the occasion of）, and if the stroke of accelerator pedal and current accelerator pedal self study zero point value
Between difference be more than the 3rd threshold value, then fault diagnosis operation terminate and diagnostic result be " breaking down "（It is i.e. current
Accelerator pedal self study zero point value is in outside rational scope）；The stroke and current accelerator pedal for determining accelerator pedal is learnt by oneself
Practise whether the difference between zero point value is less than the 4th threshold value（4th threshold value can be by way of Experimental Calibration or configuration file
And be determined, which is negative value）, and if the difference between the stroke of accelerator pedal and current accelerator pedal self study zero point value
Less than the 4th threshold value, then fault diagnosis operation terminates and diagnostic result is " breaking down "（I.e. current accelerator pedal is certainly
Study zero point value is in outside rational scope）；It is determined that whether current accelerator pedal self study zero point value is equal to 0, and if
Current accelerator pedal self study zero point value is equal to 0, then fault diagnosis operation terminates and diagnostic result is " breaking down "（I.e. when
Preacceleration pedal self study zero point value is in outside rational scope）；
Wherein, the accelerator pedal zero point value fault diagnosis operation is further included：If performing the step（1）
And/or the step（2）Diagnostic result is not " fault-free " or " breaking down " afterwards, then fault diagnosis operation terminates and examines
Disconnected result is " keeping a upper diagnostic result ".
Preferably, the accelerator pedal zero point value fault diagnosis for hybrid power/pure electric vehicle disclosed in this invention
Method is further included：If diagnostic result is " breaking down ", subsequently performs corresponding response operation and occurred to process
Failure.
Therefore, the accelerator pedal zero point value failure for hybrid power/pure electric vehicle disclosed in this invention is examined
Disconnected method has following advantages：The actual zero point value and current accelerator pedal self study zero point value of accelerator pedal are detected in time can
Between deviation and thus judge whether to break down, so as to considerably improve the drive safety of vehicle.
Although the present invention is described by above-mentioned preferred embodiment, its way of realization is not limited to
Above-mentioned embodiment.It should be realized that：In the case of without departing from spirit and scope of the present invention, those skilled in the art can be with
Different changing and modifications is made to the present invention.
Claims (2)
1. a kind of accelerator pedal zero point value method for diagnosing faults for hybrid power/pure electric vehicle, under methods described includes
Row step：
(A1) when vehicle gear is switched to forward gear by parking shift, monitor acceleration pedal position signal to determine that now acceleration is stepped on
The stroke of plate；
(A2) stroke of accelerator pedal based on determined by performs the operation of accelerator pedal zero point value fault diagnosis；
Wherein, the accelerator pedal zero point value fault diagnosis operation includes：
(1) determine the stroke of accelerator pedal whether less than first threshold and the stroke and current accelerator pedal of determination accelerator pedal
Whether the absolute value of the difference between self study zero point value is less than Second Threshold, and if the stroke of accelerator pedal is less than described
The absolute value of the difference between the stroke and current accelerator pedal self study zero point value of first threshold and accelerator pedal is less than institute
Second Threshold is stated, then fault diagnosis operation terminates and diagnostic result is " fault-free ", otherwise, into step (2)；
(2) one or more in following operation are performed：Determine the stroke of accelerator pedal and current accelerator pedal self study zero point
Whether the difference between value is more than the 3rd threshold value, and if the stroke of accelerator pedal and current accelerator pedal self study zero point value
Between difference be more than the 3rd threshold value, then fault diagnosis operation terminate and diagnostic result be " breaking down "；It is determined that plus
Whether the difference between the stroke of speed pedal and current accelerator pedal self study zero point value is less than the 4th threshold value, and if accelerates
Difference between the stroke of pedal and current accelerator pedal self study zero point value is less than the 4th threshold value, then fault diagnosis operation
Terminate and diagnostic result is " breaking down "；It is determined that whether current accelerator pedal self study zero point value is equal to 0, and if work as
Preacceleration pedal self study zero point value is equal to 0, then fault diagnosis operation terminates and diagnostic result is " breaking down "；
Wherein, the accelerator pedal zero point value fault diagnosis operation is further included：If perform step (1) and/or
After step (2), diagnostic result is not " fault-free " or " breaking down ", then fault diagnosis operation terminates and diagnoses knot
Fruit is " keeping a upper diagnostic result ".
2. the accelerator pedal zero point value method for diagnosing faults for hybrid power/pure electric vehicle according to claim 1,
Characterized in that, methods described is further included：If diagnostic result is " breaking down ", corresponding response behaviour is subsequently performed
Make to process occurred failure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310276314.XA CN104276106B (en) | 2013-07-03 | 2013-07-03 | Accelerator pedal zero value fault diagnosis method for hybrid vehicles/blade electric vehicles |
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| CN201310276314.XA CN104276106B (en) | 2013-07-03 | 2013-07-03 | Accelerator pedal zero value fault diagnosis method for hybrid vehicles/blade electric vehicles |
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| CN104276106B true CN104276106B (en) | 2017-03-22 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793608B (en) * | 2015-04-30 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Pedal component self-learning method |
| CN105422290B (en) * | 2015-12-07 | 2018-10-16 | 潍柴动力股份有限公司 | Small throttle malfunction setting, engine and throttle signal processing method |
| CN107089140B (en) * | 2017-04-26 | 2019-03-15 | 北京新能源汽车股份有限公司 | A kind of fault detection method, device and the electric car of accelerator pedal mechanism |
| CN109291934B (en) * | 2017-07-24 | 2020-07-03 | 长城汽车股份有限公司 | Self-learning method and system for minimum position of accelerator pedal and vehicle |
| CN109080600B (en) * | 2018-07-19 | 2020-05-08 | 奇瑞汽车股份有限公司 | Error self-learning method and device of brake pedal travel sensor |
| CN110901657B (en) * | 2018-09-14 | 2022-04-12 | 北汽福田汽车股份有限公司 | Vehicle and method and device for analyzing opening degree of accelerator pedal |
| CN110901658B (en) * | 2018-09-14 | 2021-04-20 | 北汽福田汽车股份有限公司 | Vehicle and fault diagnosis method and device of accelerator pedal |
| 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 |
| CN112298070A (en) * | 2019-07-26 | 2021-02-02 | 华为技术有限公司 | Pedal fault diagnosis method and device |
| CN111775959B (en) * | 2020-07-08 | 2021-10-22 | 中国第一汽车股份有限公司 | Fault diagnosis method and device for accelerator pedal and vehicle |
| CN113008574A (en) * | 2021-03-18 | 2021-06-22 | 中国第一汽车股份有限公司 | Hybrid electric vehicle accelerator pedal position and stroke output calibration method and hybrid electric vehicle |
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| CN104276106A (en) | 2015-01-14 |
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