CN108819713A - Accelerator pedal aperture zero point method of adjustment for pure electric vehicle logistic car - Google Patents
Accelerator pedal aperture zero point method of adjustment for pure electric vehicle logistic car Download PDFInfo
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- CN108819713A CN108819713A CN201810373027.3A CN201810373027A CN108819713A CN 108819713 A CN108819713 A CN 108819713A CN 201810373027 A CN201810373027 A CN 201810373027A CN 108819713 A CN108819713 A CN 108819713A
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- accelerator pedal
- displacement
- pedal aperture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
- B60K2026/026—Adjusting of accelerator pedal positions
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a kind of accelerator pedal aperture zero point methods of adjustment for pure electric vehicle logistic car, include the following steps：Voltage signal obtaining step, displacement signal mean value seek step, the current accelerator pedal least displacement step of acquisition, accelerator pedal aperture and calculate step, current accelerator pedal least displacement compensation process, current accelerator pedal aperture and recalculate step.Accelerator pedal aperture zero point method of adjustment in pure electric vehicle logistic car of the invention, solves the problems, such as that the accelerator pedal aperture zero point under different vehicle or operating condition usually can not be obtained accurately, effectively realizes the active accommodation of accelerator pedal aperture zero point.
Description
Technical field
The present invention relates to pure electric vehicle field, specially a kind of accelerator pedal aperture zero point tune for pure electric vehicle logistic car
Adjusting method.
Background technique
Pure electric vehicle refers to using vehicle power supply as power, with motor driven wheels travel, meets road traffic, security legislation
The vehicle of requirements.Since effect on environment is smaller with respect to orthodox car, its prospects are considered optimistic wildly, but current techniques are still not
It is mature.
In the prior art, artificial test calibration is generally gone through about the accelerator pedal aperture zero point of pure electric vehicle logistic car,
It turns there are the problems such as accelerator pedal aperture null offset, may cause operator demand in calibrated error or vehicle use process
Square cannot be responded accurately and in time, or judge that vehicle has torque-demand when driver does not act accelerator pedal, with
The parsing of upper accelerator pedal information runs counter to actual driving intention, but existing patent is not involved with how to be directed to and ask above
Topic carries out active accommodation to accelerator pedal aperture zero point by self-learning method.
Summary of the invention
The purpose of the present invention is：A kind of accelerator pedal aperture zero point method of adjustment for pure electric vehicle logistic car is provided, with
It solves the problems, such as that active accommodation can not be carried out to accelerator pedal aperture zero point in the prior art.
Realizing the technical solution of above-mentioned purpose is：A kind of accelerator pedal aperture zero point adjustment side for pure electric vehicle logistic car
Method includes the following steps：Voltage signal obtaining step acquires the analog voltage signal of accelerator pedal in real time；Displacement signal is equal
Value seeks step, handles analog voltage signal in real time and obtains the displacement signal of accelerator pedal and seek accelerating to step within a preset time
The mean value of all displacement signals of plate；Current accelerator pedal least displacement step is obtained, according to the equal of two institute's displacement signals
Value, seeks current accelerator pedal least displacement within the nominal time；Accelerator pedal aperture calculates step, according to current accelerator pedal
Least displacement, accelerator pedal maximum displacement calibration value and the displacement of current accelerator pedal, calculate current accelerator pedal aperture；Currently
Accelerator pedal least displacement compensation process, if after preacceleration pedal is totally released, current accelerator pedal aperture is greater than upper one and accelerates
When pedal opening, then by one calibration bit shift compensation value complement repay supreme accelerator pedal least displacement obtain it is compensated acceleration step on
Plate least displacement；Current accelerator pedal aperture recalculates step, according to compensated accelerator pedal least displacement, accelerator pedal
Maximum displacement calibration value and the displacement of current accelerator pedal, recalculate current accelerator pedal aperture.
It further, include the two simulations electricity for acquiring accelerator pedal simultaneously in real time in the voltage signal obtaining step
Press signal.
Further, include normalized in the voltage signal obtaining step, i.e., respectively believe two analog voltages
Number divided by corresponding reference voltage, with unified dimension；The signal strength of unified analog voltage signal.
Further, institute's displacement signal mean value is sought including being filtered to obtain to two displacement signals in step
The mean value of two displacement signals corresponding to the analog voltage signal.
Further, institute's displacement signal mean value is sought in step, and the preset time setting 10ms is a period.
Further, described obtain in current accelerator pedal least displacement step includes that variance calculates step, is calculated separately
The standard deviation of current displacement and the mean value of two displacement signals；Variance judgment step judges whether the standard deviation is small
In calibration value, if so, entering current displacement judgment step, if it is not, then returning to variance calculates step；Current displacement judgement step
Suddenly, whether the current displacement of judgement is less than previous displacement, if so, will currently be displaced as preacceleration pedal least displacement, if it is not,
Then it regard a upper displacement as preacceleration pedal least displacement.
Further, the limitation range of the accelerator pedal aperture is in 0-100%.
It further, further include the selection of accelerator pedal aperture after the current accelerator pedal aperture recalculates step
Step calculates separately resulting accelerator pedal aperture to two analog voltage signals of accelerator pedal and selects.
Further, in the accelerator pedal aperture selection step, judge whether two analog voltage signals are abnormal, if
It is without exception, then select lesser accelerator pedal aperture；If one of analog voltage signal is abnormal, select not occur abnormal
The accelerator pedal aperture that analog voltage signal is calculated；If exception occur in two analog voltage signals, retain the last time
As a result.
It is an advantage of the invention that：It is of the invention due to the drift of accelerator pedal sensor signal zero, calibrated error etc.
In the accelerator pedal aperture zero point method of adjustment of pure electric vehicle logistic car, solves the accelerator pedal aperture under different vehicle or operating condition
The problem of zero point usually can not be obtained accurately effectively realizes the active accommodation of accelerator pedal aperture zero point, can be effective
Avoiding demand torque caused by can not accurately obtaining because of accelerator pedal zero point cannot be responded accurately and in time, or driven
Judge that vehicle has the problems such as torque-demand when the person of sailing does not act accelerator pedal.
Detailed description of the invention
The present invention is further explained with reference to the accompanying drawings and examples.
Fig. 1 is the accelerator pedal aperture zero point method of adjustment flow chart of steps of the embodiment of the present invention.
Fig. 2 is the current accelerator pedal least displacement flow chart of steps of acquisition of the embodiment of the present invention.
Fig. 3 accelerator pedal position and voltage relationship figure.
Accelerator pedal displacement and voltage relationship figure after Fig. 4 normalized.
Fig. 5 steady state condition accelerator pedal aperture zero point adjusts variation diagram.
Fig. 6 dynamic operation condition accelerator pedal aperture zero adjustment variation diagram.
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the present invention with reference to additional schema
Example.
Embodiment：As shown in Figure 1, a kind of accelerator pedal aperture zero point method of adjustment for pure electric vehicle logistic car, including
Step S1）Step S7）：
Step S1）Voltage signal obtaining step acquires the analog voltage signal of accelerator pedal in real time；In step S1）In, electricity
It presses signal to acquire two simultaneously, the acquisition of voltage signal is realized by two sensors of accelerator pedal position.Such as Fig. 3 to figure
Shown in 4, in step S1）In include normalized, i.e., respectively by two analog voltage signals divided by corresponding reference voltage,
With unified dimension；The signal strength of unified analog voltage signal.
Step S2）Displacement signal mean value seeks step, handles analog voltage signal in real time and obtains the displacement letter of accelerator pedal
Number and seek within a preset time accelerator pedal all displacement signals mean value.In step S2）In, institute's displacement signal is equal
Value is sought including being filtered to obtain two positions corresponding to the analog voltage signal to two displacement signals in step
The mean value of shifting signal.In the present embodiment, first sensor signal intensity is twice of second sensor signal intensity, therefore will
Second sensor signal intensity is put and is twice, and the identical two accelerator pedal displacement signals of slope can be acquired.The displacement letter
Number mean value is sought in step, and the preset time setting 10ms is a period.
Step S3）Current accelerator pedal least displacement step is obtained, according to the mean value of two institute's displacement signals, is being demarcated
Current accelerator pedal least displacement is sought in time.Described obtain includes step in current accelerator pedal least displacement step
S31）Step S35）, as shown in Fig. 2, step S31）Variance calculates step, calculates separately current displacement and two displacement signals
The standard deviation of mean value；Step S32）Variance judgment step, judges whether the standard deviation is less than calibration value, if so,
Enter step S33）Current displacement judgment step, if it is not, then returning to variance calculates step；Step S33）Current displacement judgement step
Suddenly, whether the current displacement of judgement is less than previous displacement, if so, step S34）It will currently be displaced as preacceleration pedal minimum bit
It moves, if it is not, then step S35）It regard a upper displacement as preacceleration pedal least displacement.In step S3）In, if the standard
Difference is less than a certain calibration value, then the downward study of accelerator pedal least displacement can be achieved, i.e.,：If current accelerator pedal displacement is less than
Upper accelerator pedal least displacement will currently be displaced as preacceleration pedal least displacement, calculate for accelerator pedal aperture, such as
Fig. 2；Otherwise, still retain a displacement as preacceleration pedal least displacement.
Step S4）Accelerator pedal aperture calculates step, according to current accelerator pedal least displacement, accelerator pedal maximum displacement
Calibration value and the displacement of current accelerator pedal, calculate current accelerator pedal aperture；The limitation range of the accelerator pedal aperture exists
0-100%.
Step S5）Current accelerator pedal least displacement compensation process, if after preacceleration pedal is totally released, when preacceleration is stepped on
When plate aperture is greater than upper accelerator pedal aperture, then the bit shift compensation value complement by a calibration repays supreme accelerator pedal least displacement
Obtain compensated accelerator pedal least displacement；In step S5）In, after driver is totally released pedal, it is understood that there may be by
Caused current accelerator pedal position is greater than accelerator pedal least displacement in the accelerator pedal sensor null offset the problems such as
Situation.It is not zero at this point, calculating gained accelerator pedal aperture, runs counter to the intention of driver, therefore also need to realize by strategy and add
The upward study of speed pedal aperture.
Step S6）Current accelerator pedal aperture recalculates step, according to compensated accelerator pedal least displacement, accelerates
Pedal maximum displacement calibration value and the displacement of current accelerator pedal, recalculate current accelerator pedal aperture.As shown in Figure 6.
Step S7）Accelerator pedal aperture selects step, calculates separately gained to two analog voltage signals of accelerator pedal
Accelerator pedal aperture selected.In the accelerator pedal aperture selection step, judge whether two analog voltage signals are different
Often, if it is without exception, select lesser accelerator pedal aperture；If one of analog voltage signal is abnormal, select not go out
The now accelerator pedal aperture that abnormal analog voltage signal is calculated；If exception occur in two analog voltage signals, protect
Stay last result.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (9)
1. a kind of accelerator pedal aperture zero point method of adjustment for pure electric vehicle logistic car, which is characterized in that include the following steps：
Voltage signal obtaining step acquires the analog voltage signal of accelerator pedal in real time；
Displacement signal mean value seeks step, handles analog voltage signal in real time and obtains the displacement signal of accelerator pedal and when default
The mean value of the interior all displacement signals for seeking accelerator pedal；
Current accelerator pedal least displacement step is obtained, according to the mean value of two institute's displacement signals, is sought within the nominal time
Current accelerator pedal least displacement；
Accelerator pedal aperture calculate step, according to current accelerator pedal least displacement, accelerator pedal maximum displacement calibration value and
Current accelerator pedal displacement, calculates current accelerator pedal aperture；
Current accelerator pedal least displacement compensation process, if after preacceleration pedal is totally released, current accelerator pedal aperture is greater than
When upper accelerator pedal aperture, then the bit shift compensation value complement of a calibration is repaid after supreme accelerator pedal least displacement obtains compensation
Accelerator pedal least displacement；
Current accelerator pedal aperture recalculates step, according to compensated accelerator pedal least displacement, accelerator pedal dominant bit
Calibration value and the displacement of current accelerator pedal are moved, current accelerator pedal aperture is recalculated.
2. the accelerator pedal aperture zero point method of adjustment according to claim 1 for pure electric vehicle logistic car, feature exist
In including acquiring two analog voltage signals of accelerator pedal simultaneously in real time in the voltage signal obtaining step.
3. the accelerator pedal aperture zero point method of adjustment according to claim 2 for pure electric vehicle logistic car, feature exist
In including in the voltage signal obtaining step
Normalized, i.e., respectively by two analog voltage signals divided by corresponding reference voltage, with unified dimension；
The signal strength of unified analog voltage signal.
4. the accelerator pedal aperture zero point method of adjustment according to claim 3 for pure electric vehicle logistic car, feature exist
In institute's displacement signal mean value is sought including being filtered to obtain the analog voltage letter to two displacement signals in step
The mean value of two displacement signals corresponding to number.
5. the accelerator pedal aperture zero point method of adjustment according to claim 3 for pure electric vehicle logistic car, feature exist
In institute's displacement signal mean value is sought in step, and the preset time setting 10ms is a period.
6. the accelerator pedal aperture zero point method of adjustment according to claim 4 for pure electric vehicle logistic car, feature exist
In, include in the current accelerator pedal least displacement step of acquisition,
Variance calculates step, calculates separately the standard deviation of current displacement and the mean value of two displacement signals；
Variance judgment step, judges whether the standard deviation is less than calibration value, if so, enter current displacement judgment step,
If it is not, then returning to variance calculates step；
Current displacement judgment step, judges whether current displacement is less than previous displacement, if so, will currently be displaced as preacceleration
Pedal least displacement, if it is not, then regarding a upper displacement as preacceleration pedal least displacement.
7. the accelerator pedal aperture zero point method of adjustment according to claim 6 for pure electric vehicle logistic car, feature exist
In the limitation range of the accelerator pedal aperture is in 0-100%.
8. the accelerator pedal aperture zero point method of adjustment according to claim 5 for pure electric vehicle logistic car, feature exist
In, after the current accelerator pedal aperture recalculates step, further include accelerator pedal aperture selection step, to accelerator pedal
Two analog voltage signals calculate separately resulting accelerator pedal aperture and selected.
9. the accelerator pedal aperture zero point method of adjustment according to claim 8 for pure electric vehicle logistic car, feature exist
In, in the accelerator pedal aperture selection step,
Judge whether two analog voltage signals are abnormal, if without exception, select lesser accelerator pedal aperture；If wherein one
A analog voltage signal is abnormal, then selects do not occur the accelerator pedal aperture that abnormal analog voltage signal is calculated；If two
There is exception in a analog voltage signal, then retains last result.
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| CN201810373027.3A CN108819713B (en) | 2018-04-24 | 2018-04-24 | Accelerator pedal opening zero point adjusting method for pure electric logistics vehicle |
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| CN201810373027.3A CN108819713B (en) | 2018-04-24 | 2018-04-24 | Accelerator pedal opening zero point adjusting method for pure electric logistics vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040085A (en) * | 2019-04-30 | 2019-07-23 | 东风航盛（武汉）汽车控制系统有限公司 | Electromobile pedal aperture failure automatic processing method |
| CN110103709A (en) * | 2019-05-20 | 2019-08-09 | 北京易控智驾科技有限公司 | A kind of control method, system, equipment and the medium of pedal of vehicles aperture |
| CN111038277A (en) * | 2019-11-04 | 2020-04-21 | 郑州意昂新能源汽车科技有限公司 | Calculation and processing method for opening degree of accelerator pedal of pure electric vehicle |
| CN112277845A (en) * | 2020-10-28 | 2021-01-29 | 中国第一汽车股份有限公司 | Vehicle accelerator pedal opening obtaining method, active sound production system and vehicle |
| CN112298070A (en) * | 2019-07-26 | 2021-02-02 | 华为技术有限公司 | Pedal fault diagnosis method and device |
| CN112977059A (en) * | 2021-02-26 | 2021-06-18 | 三一汽车制造有限公司 | Failure processing method and device for pedal, vehicle and readable storage medium |
| 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 |
| CN113147388A (en) * | 2021-05-11 | 2021-07-23 | 东风汽车集团股份有限公司 | Vehicle accelerator pedal position analysis method and system |
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| CN111038277A (en) * | 2019-11-04 | 2020-04-21 | 郑州意昂新能源汽车科技有限公司 | Calculation and processing method for opening degree of accelerator pedal of pure electric vehicle |
| CN112277845A (en) * | 2020-10-28 | 2021-01-29 | 中国第一汽车股份有限公司 | Vehicle accelerator pedal opening obtaining method, active sound production system and vehicle |
| CN112977059A (en) * | 2021-02-26 | 2021-06-18 | 三一汽车制造有限公司 | Failure processing method and device for pedal, vehicle and readable storage medium |
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| 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 |
| CN113147388A (en) * | 2021-05-11 | 2021-07-23 | 东风汽车集团股份有限公司 | Vehicle accelerator pedal position analysis method and system |
| CN113147388B (en) * | 2021-05-11 | 2023-01-17 | 东风汽车集团股份有限公司 | Vehicle accelerator pedal position analysis method and system |
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