CN110219744A - Electronic throttle failure solution, device, system and storage medium - Google Patents
Electronic throttle failure solution, device, system and storage medium Download PDFInfo
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- CN110219744A CN110219744A CN201910494804.4A CN201910494804A CN110219744A CN 110219744 A CN110219744 A CN 110219744A CN 201910494804 A CN201910494804 A CN 201910494804A CN 110219744 A CN110219744 A CN 110219744A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The present invention discloses a kind of electronic throttle failure solution, device, system and storage medium, this method comprises: obtaining the initial deviation distance between electronic throttle present position and preset standard position；Judge whether initial deviation distance is more than predetermined deviation threshold value, carries out rushing valve to electronic throttle if being more than and operate and obtain the actual deviation distance rushed at the end of valve operates between electronic throttle and preset standard position；If actual deviation distance is no more than predetermined deviation threshold value, determine that failure is not present in electronic throttle.Electronic throttle is carried out rushing valve when by then passing through the offset distance between electronic throttle current location and normal place more than deviation threshold and is operated, then detection rushes whether the actual deviation distance after valve operation between normal place is more than predetermined deviation threshold value, if otherwise determining to rush valve success, Block failure is not present in electronic throttle, it so as to timely and effective detection and solves the problems, such as electronic throttle clamping stagnation, improves riding experience.
Description
Technical field
The present invention relates to automobile technical field more particularly to a kind of electronic throttle failure solution, device, system and
Storage medium.
Background technique
Environmental protection is one of the major issue of facing mankind in the modern life.With the rapid development of economy, automobile is
Coming into huge numbers of families becomes the trip mode of current main-stream, while the emission problem of vehicle exhaust is also increasingly closed by masses
Note.
With the upgrading of emission request, electronics tubercle valve is widely applied on the internal combustion engines such as diesel engine, gasoline engine.Bavin
Before oil machine air throttle is typically located at exhaust gas recycling gas outlet (Exhaust Gas Recirculation, EGR), to make
The exhaust gas that comes out of EGR it is cooling after congeal into drop and flow back into electronic throttle position, but prolonged waste gas circulation is easy to cause
Electronic throttle clamping stagnation.Therefore, it how to be effectively prevent electronic throttle clamping stagnation, just becomes a urgent problem to be solved.
Above content is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that above content is existing skill
Art.
Summary of the invention
The main purpose of the present invention is to provide a kind of electronic throttle failure solution, device, system and storages
Medium, it is intended to solve the technical issues of prior art can not effectively solve electronic throttle clamping stagnation.
To achieve the above object, the present invention provides a kind of electronic throttle failure solution, the method includes with
Lower step:
Obtain the initial deviation distance between electronic throttle present position and preset standard position；
Judge whether the initial deviation distance is more than predetermined deviation threshold value, by default duty ratio to the electricity if being more than
Sub- air throttle carries out rushing valve operation；
Obtain the actual deviation rushed at the end of valve operates between the electronic throttle and the preset standard position
Distance；
When detecting that the actual deviation distance is no more than the predetermined deviation threshold value, the electronic throttle is determined not
There are failures.
Preferably, described when detecting that the actual deviation distance is no more than the predetermined deviation threshold value, described in judgement
It rushes before the successful step of valve operation, the method also includes:
The actual deviation distance is compared with the initial deviation distance；
If the actual deviation distance is less than the initial deviation distance, determine that the electronic throttle is in mobile shape
State, and detect whether the actual deviation distance is more than the predetermined deviation threshold value.
Preferably, after the step of whether detection actual deviation distance is more than the predetermined deviation threshold value, institute
State method further include:
If the actual deviation distance is more than the predetermined deviation threshold value, it is default to carry out first to the electronic throttle
The described of number rushes valve operation；
At the end of rushing valve operation every time, obtain deviation between the electronic throttle and the preset standard position away from
From, and the offset distance of acquisition is compared with the predetermined deviation threshold value；
If the offset distance obtained every time is more than the predetermined deviation threshold value, determine that the electronic throttle has event
Barrier.
Preferably, after described the step of being compared the actual deviation distance with the initial deviation distance, institute
State method further include:
If the actual deviation distance is equal to the initial deviation distance, determine that the electronic throttle is in non-moving
State；
When the electronic throttle is in non-moving state, the institute of the second preset times is carried out to the electronic throttle
It states and rushes valve operation；
The offset distance at the end of rushing valve operation every time between the electronic throttle and the preset standard position is obtained,
And the offset distance of acquisition is compared with the initial deviation distance；
If the offset distance obtained every time is equal to the initial deviation distance, determine that the electronic throttle has event
Barrier.
Preferably, the initial deviation distance obtained between electronic throttle present position and preset standard position
The step of before, the method also includes:
Current supply voltage and the electronic throttle for obtaining the corresponding electronic control unit of electronic throttle are corresponding
Current intake air temperature；
It detects the current intake air temperature and whether the current supply voltage is all satisfied default automatically cleaning condition；
If satisfied, then carrying out carbon cleaning operation to the electronic throttle, the carbon cleaning is operated including carbon distribution certainly
Drift correction after clean operation and the carbon distribution automatically cleaning operate operates；
At the end of drift correction operation, obtain inclined between the electronic throttle and the preset standard position
Difference；
Judge whether the deviation is more than the predetermined deviation threshold value；
When the deviation is no more than the predetermined deviation threshold value, carbon cleaning success is determined.
Preferably, whether the detection current intake air temperature and the current supply voltage are all satisfied default from clear
The step of clean condition, comprising:
Detect whether the current intake air temperature is in preset temperature range and whether the current supply voltage is higher than
Preset voltage value；
If the current intake air temperature is in the preset temperature range, and the current supply voltage is higher than described preset
Voltage value then determines to meet the default automatically cleaning condition.
Preferably, it is described judge the step of whether deviation is more than the predetermined deviation threshold value after, the method
Further include:
When the deviation is more than the predetermined deviation threshold value, then third preset times are carried out to the electronic throttle
The carbon cleaning operation；
At the end of the operation of each carbon cleaning, obtain inclined between the electronic throttle and the preset standard position
Difference, and the deviation of acquisition is compared with the predetermined deviation threshold value；
If the deviation obtained every time is more than the predetermined deviation threshold value, determine that the electronic throttle has event
Barrier.
In addition, to achieve the above object, the present invention also proposes a kind of electronic throttle failure solving device, described device packet
It includes:
Distance obtains module, initial inclined between electronic throttle present position and preset standard position for obtaining
Gap from；
Threshold value judgment module is pressed if being more than for judging whether the initial deviation distance is more than predetermined deviation threshold value
Default duty ratio carries out the electronic throttle to rush valve operation；
The distance obtains module, is also used to obtain the electronic throttle and described default of rushing at the end of valve operation
Actual deviation distance between normal place；
Breakdown judge module, for sentencing when detecting that the actual deviation distance is no more than the predetermined deviation threshold value
Failure is not present in the fixed electronic throttle.
In addition, to achieve the above object, the present invention also proposes that a kind of electronic throttle failure solves system, the system packet
Include: electronic control unit, engine and are stored in the electricity at electronic throttle, cooler for recycled exhaust gas, exhaust gas recirculation valve
In sub-control unit and the electronic throttle failure settlement procedure that can be run on the electronic control unit, the electronic throttle
The step of door failure settlement procedure is arranged for carrying out electronic throttle failure solution as described above.
In addition, to achieve the above object, the present invention also proposes a kind of storage medium, electronics is stored on the storage medium
Throttle fault settlement procedure, the electronic throttle failure settlement procedure realize electricity as described above when being executed by processor
The step of sub- throttle fault solution.
The present invention is by obtaining the initial deviation distance between electronic throttle present position and preset standard position；
Judge whether initial deviation distance is more than predetermined deviation threshold value, carries out rushing valve to electronic throttle by default duty ratio if being more than
Operation；Obtain the actual deviation distance at the end of rushing valve operation between electronic throttle and preset standard position；Detecting reality
When border offset distance is no more than predetermined deviation threshold value, determine that failure is not present in electronic throttle, by then passing through detection electronics section
Whether the offset distance between valve current location and normal place is more than predetermined deviation threshold value, when being more than to electronic throttle
It carries out rushing valve operation, then detection rushes whether the actual deviation distance after valve operation between electronic throttle and normal place does not surpass
Predetermined deviation threshold value is crossed, shows to rush valve success if being no more than, Block failure is also not present in electronic throttle, so as to timely
It effectively detects and solves the problems, such as electronic throttle clamping stagnation, improve riding experience.
Detailed description of the invention
Fig. 1 is that the electronic throttle failure for the hardware running environment that the embodiment of the present invention is related to solves the structure of system
Schematic diagram；
Fig. 2 is the flow diagram of electronic throttle failure solution first embodiment of the present invention；
Fig. 3 is the flow diagram of electronic throttle failure solution second embodiment of the present invention；
Fig. 4 is the flow diagram of electronic throttle failure solution 3rd embodiment of the present invention；
Fig. 5 is the structural block diagram of electronic throttle failure solving device first embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that described herein, specific examples are only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig.1, Fig. 1 is that the electronic throttle failure for the hardware running environment that the embodiment of the present invention is related to solves system
System structural schematic diagram.
As shown in Figure 1, it may include: electronic control unit (Electronic that the electronic throttle failure, which solves system,
Control Unit, ECU) (not shown), engine 1001 (such as diesel engine, gasoline engine etc.), electronic throttle 1002,
Cooler for recycled exhaust gas 1003, EGR valve 1004 and EGR exhaust outlet.Wherein, electronic control unit has data processing, network communication
And program operation function, it can be to being attached thereto (including wired connection and wireless in electronic throttle failure solution system
Connection) electronic device controlled；1004 one end of EGR valve is connect with engine 1001, and the other end and cooler for recycled exhaust gas 1003 connect
It connects；The other end of cooler for recycled exhaust gas 1003 is EGR exhaust outlet, and the setting of electronic throttle 1002 is before EGR exhaust outlet；EGR is useless
Gas outlet is on the pipeline between electronic throttle 1002 and engine 1001.
It will be understood by those skilled in the art that structure shown in Fig. 1, which is not constituted, solves system to electronic throttle failure
The restriction of system may include perhaps combining certain components or different component layouts than illustrating more or fewer components.
In electronic throttle failure solution system shown in Fig. 1, the electronic throttle failure solves system and passes through electricity
Sub-control unit calls the electronic throttle failure settlement procedure being stored on the electronic control unit, and executes of the invention real
The electronic throttle failure solution of example offer is provided.
The embodiment of the invention provides a kind of electronic throttle failure solutions, are electronics of the present invention referring to Fig. 2, Fig. 2
The flow diagram of throttle fault solution first embodiment.
In the present embodiment, the electronic throttle failure solution the following steps are included:
Step S10: the initial deviation distance between electronic throttle present position and preset standard position is obtained；
It should be noted that the executing subject of the present embodiment method can be electronic control unit (ECU), the electronics control
Unit processed, also known as " car running computer ", " vehicle-mounted computer ", ECU generally has fault self-diagnosis and defencive function.When system generates
When failure, it can automatically record fault code in random access memory (Random Access Memory, RAM) and use
Safeguard measure reads alternative program from intrinsic program to maintain the operating of engine and other components.
It should be understood that the preset standard position is location under electronic throttle normal condition.The present embodiment
Described in initial deviation distance can be by the aperture of electronic throttle, i.e. the electronic throttle valve block angle opened characterizes.
In the concrete realization, electronic control unit first obtains the position that electronic throttle is currently located after automobile starting,
Then the distance between present position and preset standard position, i.e., the described initial deviation distance are calculated.
Step S20: judge whether the initial deviation distance is more than predetermined deviation threshold value, by default duty ratio if being more than
The electronic throttle is carried out to rush valve operation；
It should be noted that the predetermined deviation threshold value can be the allowable error based on preset standard position setting
Value, i.e. the distance between electronic throttle present position and the preset standard position are less than or equal to the deviation threshold then
The position for assert that electronic throttle is presently in is normal, does not need to carry out the adjustment of valve block position by rushing valve operation；Conversely, then needing
The adjustment of valve block position is carried out by rushing valve operation.
It will be appreciated that described rush valve operation, i.e., when electronic throttle is there are when clamping stagnation trend, driven with biggish duty ratio
The mobile movement of moving valve plate.So-called duty ratio refers to that the time that circuit is switched on accounts for the percentage of entire circuit duty cycle.Than
Such as, a circuit (or electronic component) has half the time to be switched on (energization) in its duty cycle, then it
Duty ratio is exactly 50%.Assuming that the electronic component is an electronic valve, when the circuit is on, valve wide open；When duty ratio is
When 50%, valve state is half-open.Similarly, when duty ratio is set as 20%, the aperture of valve obviously should be 20%.In this way
Valve can realize that electronic throttle is any in the range of 0% (fully closed) is to 100% (standard-sized sheet) by control duty ratio
It adjusts.Duty ratio is preset described in this programme may be configured as 100% or -100%.
In the concrete realization, electronic control unit shows when judging that initial deviation distance is more than predetermined deviation threshold value
It needs to carry out the adjustment of valve block position by rushing valve operation.Specifically, electronic control unit can come according to preset duty ratio
Valve operation is rushed to being reversed for electronic throttle initial deviation distance, such as using position of valve block when normally closed as reference point, it is suitable
The offset distance of hour hands rotation is positive, and the deviation rotated counterclockwise is negative, and is timing in offset distance, needs reversed punching (counterclockwise)
Valve needs reversed (clockwise) to rush valve when offset distance is negative.
Step S30: described rush at the end of valve operates between the electronic throttle and the preset standard position is obtained
Actual deviation distance；
It should be noted that the actual deviation distance is to rush electronic throttle valve block and preset standard at the end of valve operation
Offset distance between position.
It should be understood that rushing valve operation meeting so that driving performance is affected, it is therefore desirable to as far as possible less
The case where automotive electronics air throttle is with the presence or absence of clamping stagnation is accurately judged in the case where rushing valve operation.With the prior art using each
Driving cycle is fixed to carry out three-wheel, and every to take turns five electronic throttle clamping stagnation inspection policies differences for rushing valve operation, the present embodiment is first
It carries out once rushing valve operation, is then judged automotive electronics air throttle with the presence or absence of clamping stagnation according to the result for rushing valve operation.
In the concrete realization, electronic control unit also obtains after carrying out rushing valve operation to electronic throttle and rushes valve operation
At the end of actual deviation distance between electronic throttle and preset standard position, thus inclined according to the reality after valve operation is rushed
Gap is from judging to rush whether valve succeeds, and showing electronic throttle if success, there is no Block failures, if unsuccessfully show electricity
Sub- air throttle needs to further confirm that there may be Block failure.
Step S40: when detecting that the actual deviation distance is no more than the predetermined deviation threshold value, determine the electronics
Failure is not present in air throttle.
It should be noted that before step S40, electronic control unit first by the actual deviation distance with it is described initial
Offset distance is compared, if detecting that actual deviation distance is less than initial deviation distance according to comparison result, can be sentenced
Determine electronic throttle and be in moving condition, but does not represent electronic throttle in moving condition and be moved into normal position
(the i.e. described preset standard position), therefore electronic control unit also will test whether actual deviation distance is more than predetermined deviation threshold
Value, if detecting, actual deviation distance is no more than predetermined deviation threshold value, and can determining electronic throttle immediately, there is no clamping stagnations
Failure.
In the concrete realization, electronic control unit is detecting that it is default inclined that the actual deviation distance after rushing valve operation is no more than
When poor threshold value, that is, it can determine that the failure of clamping stagnation is not present in electronic throttle.
The present embodiment by obtain the initial deviation between electronic throttle present position and preset standard position away from
From；Judge whether initial deviation distance is more than predetermined deviation threshold value, is carried out by default duty ratio to electronic throttle if being more than
Rush valve operation；Obtain the actual deviation distance at the end of rushing valve operation between electronic throttle and preset standard position；It is detecting
When being no more than predetermined deviation threshold value to actual deviation distance, determine that failure is not present in electronic throttle, by then passing through detection electricity
Whether the offset distance between sub- air throttle current location and normal place is more than predetermined deviation threshold value, when being more than to electronics section
Valve carries out rushing valve operation, and then whether detection rushes the actual deviation distance after valve operation between electronic throttle and normal place
No more than predetermined deviation threshold value, showing to rush valve success if being no more than, Block failure is also not present in electronic throttle, so as to
Timely and effective detection simultaneously solves the problems, such as electronic throttle clamping stagnation, improves riding experience.
With reference to Fig. 3, Fig. 3 is the flow diagram of electronic throttle failure solution second embodiment of the present invention.
Based on above-mentioned first embodiment, in the present embodiment, electronic control unit will be rushed for the first time after valve operates and be obtained
After actual deviation distance is compared with initial deviation distance, the electronic throttle failure solution further include:
Step S301: if the actual deviation distance be more than the predetermined deviation threshold value, to the electronic throttle into
The described of the first preset times of row rushes valve operation；
It should be understood that still detecting that actual deviation distance has been more than to preset if carrying out after rushing valve operation for the first time
Deviation threshold, indicate that once rushing valve operation insufficient for electronic throttle is moved to preset standard position, needs to carry out
Secondary even more numbers rush valve operation.
In view of rushing valve operation meeting so that driving performance is affected, the first preset times described in the present embodiment are excellent
It is selected as three times.
In the concrete realization, if electronic control unit detects that actual deviation distance is more than predetermined deviation threshold value, it will
The valve that rushes for carrying out above-mentioned first preset times to electronic throttle operates.
Step S302: at the end of rushing valve operation every time, obtain the electronic throttle and the preset standard position it
Between offset distance, and the offset distance of acquisition is compared with the predetermined deviation threshold value；
It should be noted that after rushing valve operation each time, electronic control unit all will acquire electronics in the present embodiment
Offset distance between air throttle and preset standard position, the offset distance that then will acquire are compared with predetermined deviation distance
Compared with to judge whether the valve block of electronic throttle is moved to preset standard position according to comparison result.
Step S303: if the offset distance obtained every time is more than the predetermined deviation threshold value, determine the electronics section
There are failures for valve；
In the concrete realization, if after the first preset times rush valve operation after, electronic control unit detect deviation away from
From (being no more than) described predetermined deviation threshold value is less than or equal to, then show to rush valve success, conversely, then showing the electronic throttle
There are failures for door.
Further, in the present embodiment, electronic control unit will rush for the first time after valve operation the actual deviation that obtains away from
From with the step of being compared with a distance from initial deviation after, the present embodiment electronic throttle failure solution further include:
Step S304: if actual deviation distance is equal to the initial deviation distance, determine the electronic throttle
In non-moving state；
It should be understood that if electronic control unit detects that the actual deviation distance rushed obtain after valve operation for the first time is equal to
Initial deviation distance then shows that electronic throttle does not almost move at the end of rushing valve operation for the first time, that is, is in non-moving state
Or irremovable state.
Certainly, in the present embodiment, it is not considered critical reality that the actual deviation distance, which is equal to the initial deviation distance,
The numerical value of border offset distance and the numerical value of initial deviation distance must equal, the relationship that can be about equal between them, also
Be say as long as actual deviation distance and initial deviation apart from absolute value of the difference belong to the range (such as 0~1) of a calibration as long as
Assert actual deviation distance " being equal to " initial deviation distance.
In the concrete realization, if electronic control unit detects that the actual deviation distance after rushing valve operation for the first time is equal to just
Beginning offset distance then determines that electronic throttle is in non-moving state.
Step S305: when the electronic throttle is in non-moving state, it is pre- that second is carried out to the electronic throttle
If the described of number rushes valve operation；
It should be noted that the second preset times described in the present embodiment can be set according to actual conditions.Similarly, consider
Meeting is operated so that driving performance is affected, but when electronic throttle is in non-moving state, rushes valve number to valve is rushed
It is very few possibly effectively to solve the problems, such as electronic throttle clamping stagnation, therefore the second preset times described in the present embodiment are preferably 5
It is secondary.It is a wheel that 5 times, which are rushed valve operation, in the present embodiment, and each driving cycle needs to carry out 3 wheels.
In the concrete realization, when the electronic throttle is in non-moving state, electronic control unit will be to the electricity
The valve that rushes that sub- air throttle carries out the second preset times operates.
Step S306: at the end of rushing valve operation every time, obtain the electronic throttle and the preset standard position it
Between offset distance, and the offset distance of acquisition is compared with the initial deviation distance；
In the concrete realization, electronic control unit rush each time valve operation at the end of, all will acquire electronic throttle with
Then the offset distance of acquisition is compared by the offset distance between preset standard position with initial deviation distance, with detection
Whether electronic throttle is still in non-moving state.
Step S307: if the offset distance obtained every time is equal to the initial deviation distance, determine the electronics section
There are failures for valve.
In the concrete realization, if the second preset times are rushed in valve operation implementation procedure, electronic control unit obtains every time
Offset distance be equal to initial deviation distance, then determine that there are Block failures for the electronic throttle.
It is pre- that the present embodiment carries out first when detecting that actual deviation distance is more than predetermined deviation threshold value, to electronic throttle
If number rushes valve operation；Obtain the deviation at the end of rushing valve operation every time between the electronic throttle and preset standard position
Distance, and the offset distance of acquisition is compared with predetermined deviation threshold value；If the offset distance obtained every time is more than default
Deviation threshold, then determining electronic throttle, there are failures, compare existing electronic throttle clamping stagnation inspection policies, the present embodiment energy
Enough reduce while guaranteeing failure detection result accuracy rushes valve operation, improves the driving performance of automobile.Meanwhile this implementation
Example detect actual deviation distance be equal to the initial deviation apart from when, determine electronic throttle be in non-moving state；?
When electronic throttle is in non-moving state, the valve that rushes for carrying out the second preset times to electronic throttle is operated；Obtain punching every time
Offset distance at the end of valve operation between electronic throttle and preset standard position, and it is by the offset distance of acquisition and initially inclined
Gap is from being compared；If the offset distance obtained every time is equal to initial deviation distance, determine that electronic throttle has event
Barrier, and then electronic throttle can be determined by repeatedly rushing valve operation when judging that electronic throttle is in non-moving state
Door whether there is failure, improve the accuracy of failure detection result.
With reference to Fig. 4, Fig. 4 is the flow diagram of electronic throttle failure solution 3rd embodiment of the present invention.
Based on the various embodiments described above, in the present embodiment, before the step S10, the method also includes:
Step S01: the current supply voltage and the electronics section of the corresponding electronic control unit of electronic throttle are obtained
The corresponding current intake air temperature of valve；
It should be understood that the electronic throttle clamping stagnation of automobile may be that carbon distribution adhered on valve block etc. is miscellaneous under actual conditions
Caused by matter.Therefore, the present embodiment electronic throttle failure solution is further solved by being purged operation to carbon distribution
Certainly the problem of electronic throttle clamping stagnation.
It will be appreciated that carbon cleaning operation inconvenience in automobilism is carried out, the present embodiment electronic control unit will be
Carbon cleaning is carried out under automobile key after electricity.
In the concrete realization, electronic control unit electricity under automobile key is enough, acquires electronic throttle by temperature sensor
The corresponding current intake air temperature of door, and obtain the supply voltage at itself current time.
Step S02: detecting the current intake air temperature and whether the current supply voltage is all satisfied default automatically cleaning
Condition；
It should be noted that presetting automatically cleaning condition described in the present embodiment is electronics section after (off) electric under automobile key
The intake air temperature of valve is greater than 10V in preset temperature range (i.e. 0 ° to 110 ° between), ECU supply voltage.Certain the present embodiment
Before carrying out carbon clear operation, therefore, to assure that at least 500 milliseconds of electricity under automobile key.
In the concrete realization, electronic control unit will test whether current intake air temperature is in preset temperature range, and
Whether current supply voltage is higher than preset voltage value；If current intake air temperature is in preset temperature range, and current supply voltage
Higher than preset voltage value, then determine to meet the default automatically cleaning condition.
Step S03: if satisfied, then carrying out carbon cleaning operation, the carbon cleaning operation packet to the electronic throttle
Include carbon distribution automatically cleaning operation and the carbon distribution automatically cleaning operate after drift correction operation；
It should be noted that the operation of carbon distribution automatically cleaning described in the present embodiment can decarbonizing to a certain extent.The product
The operation of carbon automatically cleaning specifically includes: the valve block of electronic control unit closed-loop control electronic throttle is rotated to 95% position, is kept
Valve block does not move lasting 400 milliseconds in the position；Then closed-loop control valve block is rotated to 5% position, keeps valve block in the position
Lasting 400 milliseconds are not moved, and last closed-loop control valve block is rotated to 95% position；Predetermined number of times (such as 8 times) are repeated the above process,
And entire repetitive process needs are completed in 15 seconds.Valve block is closed completely in the present embodiment and is defined as 0% position (lower dead center),
Valve block is fully opened and is defined as 100% position (top dead centre).
In addition, the drift correction operation after the carbon distribution automatically cleaning operation can be described as drift correction in the present embodiment
Self study process, the specific self study process includes: that above-mentioned carbon distribution automatically cleaning operation terminates a period of time (for example, 0.5
Second) after, electronic control unit closed-loop control throttle position to 0% position (process must be completed in 1.5 seconds, otherwise into
Entering pulse width modulation (Pulse Width Modulation, PWM), directly control stage, closed-loop control follow soft landing), then will
Current PWM is maintained 0.5 second herein with the PWM of the rate transition of 100%/s to 30%, after read 5 position signal values
And it is averaged and (still reads be separated by 20ms every time under 30%PWM control at this time).When lower dead center, corresponding self study operation is executed
After, (the same process must be in 1.5 seconds for electronic control unit closed-loop control electronic throttle position to 100% position
Complete, otherwise enter PWM and directly control the stage), then current PWM is jumped to -10% PWM, and maintain 0.5 second herein, terminated
5 position signal values are read afterwards and are averaged and (are still read be separated by 20ms every time under -10%PWM control at this time).On in addition,
Stating self study process must complete in 9 seconds, and otherwise self study will be interrupted.
In the concrete realization, electronic control unit detect meet default automatically cleaning condition when, to electronic throttle into
The above-mentioned carbon cleaning operation of row.
Step S04: at the end of drift correction operation, the electronic throttle and the preset standard position are obtained
Between deviation；
It should be noted that electronic control unit will also will do it short-term deviation after the present embodiment self study process
With the verification of long-term deviation.
Wherein, the short-term deviation will the valve block position of electronic throttle and last after self study process every time
After the position of valve block makes the difference after self study process, the error range whether difference is in a permission is detected, if then
Determine self study success, valve block is in normal position.Likewise, the long-term deviation will electricity after self study process every time
After the position of valve block makes the difference after the valve block position of sub- air throttle and first time self study process, detect whether the difference is in
The error range of one permission, it is on the contrary then determine failure if then determining self study success.
In the concrete realization, electronic control unit obtains at the end of drift correction operates (i.e. above-mentioned self study process)
State the deviation between electronic throttle present position and the preset standard position.
Step S05: judge whether the deviation is more than the predetermined deviation threshold value；
In the concrete realization, electronic control unit is getting the deviation between electronic throttle and preset standard position
Afterwards, will also judge whether the deviation is more than the predetermined deviation threshold value, i.e., between detection valve block and preset standard position
Whether distance is in the error range of permission.
Step S06: when the deviation is no more than the predetermined deviation threshold value, determine carbon cleaning success.
In the concrete realization, electronic control unit can be sentenced when detecting that the deviation is no more than predetermined deviation value
Constant volume carbon clear operation success.
Further, in this embodiment if electronic control unit detect deviation be more than predetermined deviation threshold value when,
The carbon cleaning operation of third preset times is carried out to electronic throttle；Obtain electronic throttle at the end of each carbon cleaning operates
Deviation between door and preset standard position, and the deviation of acquisition is compared with predetermined deviation threshold value；If obtaining every time
The deviation obtained is more than predetermined deviation threshold value, then determines that there are failures for electronic throttle.
Wherein, the third preset times are the number for carrying out carbon cleaning, and the present embodiment is to the third preset times
Numerical value is not specifically limited.
The current supply voltage and electronics section that the present embodiment passes through the corresponding electronic control unit of acquisition electronic throttle
The current intake air temperature of valve；It detects current intake air temperature and whether current supply voltage is all satisfied default automatically cleaning condition；
If satisfied, then carrying out carbon cleaning operation to electronic throttle；It obtains electronic throttle at the end of drift correction operates and presets
Deviation between normal place；Whether judgment bias value is more than predetermined deviation threshold value；It is no more than predetermined deviation threshold in deviation
When value, carbon cleaning success is determined, the present embodiment, can be further by being purged to the carbon distribution at electronic throttle valve block
Ground prevents carbon distribution excessively caused clamping stagnation problem.
In addition, the embodiment of the present invention also proposes a kind of storage medium, electronic throttle event is stored on the storage medium
Hinder settlement procedure, the electronic throttle failure settlement procedure realizes electronic throttle as described above when being executed by processor
The step of failure solution.
Fig. 5 is the structural block diagram of electronic throttle failure solving device first embodiment of the present invention.
As shown in figure 5, the electronic throttle failure solving device that the embodiment of the present invention proposes includes:
Distance obtains module 501, first between electronic throttle present position and preset standard position for obtaining
Beginning offset distance；
Threshold value judgment module 502, for judging whether the initial deviation distance is more than predetermined deviation threshold value, if being more than
The electronic throttle is carried out by default duty ratio to rush valve operation；
It is described distance obtain module 501, be also used to obtain it is described rush valve operation at the end of the electronic throttle with it is described
Actual deviation distance between preset standard position；
Breakdown judge module 503, for when detecting that actual deviation distance is no more than the predetermined deviation threshold value,
Determining the electronic throttle, there is no failures.
The present embodiment by obtain the initial deviation between electronic throttle present position and preset standard position away from
From；Judge whether initial deviation distance is more than predetermined deviation threshold value, is carried out by default duty ratio to electronic throttle if being more than
Rush valve operation；Obtain the actual deviation distance at the end of rushing valve operation between electronic throttle and preset standard position；It is detecting
When being no more than predetermined deviation threshold value to actual deviation distance, determine that failure is not present in electronic throttle, by then passing through detection electricity
Whether the offset distance between sub- air throttle current location and normal place is more than predetermined deviation threshold value, when being more than to electronics section
Valve carries out rushing valve operation, and then whether detection rushes the actual deviation distance after valve operation between electronic throttle and normal place
No more than predetermined deviation threshold value, showing to rush valve success if being no more than, Block failure is also not present in electronic throttle, so as to
Timely and effective detection simultaneously solves the problems, such as electronic throttle clamping stagnation, improves riding experience.
Based on the above-mentioned electronic throttle failure solving device first embodiment of the present invention, electronic throttle event of the present invention is proposed
Hinder the second embodiment of solving device.
In the present embodiment, the threshold value judgment module 502 is used for the actual deviation distance and the initial deviation
Distance is compared；If the actual deviation distance is less than the initial deviation distance, determine that the electronic throttle is in
Moving condition, and detect whether the actual deviation distance is more than the predetermined deviation threshold value.
Further, the threshold value judgment module 502 is also used to detecting that the actual deviation distance is more than described pre-
If when deviation threshold, carrying out the described of the first preset times to the electronic throttle and rushing valve operation；Valve operation knot is being rushed every time
Shu Shi, obtains the offset distance between the electronic throttle and the preset standard position, and by the offset distance of acquisition with
The predetermined deviation threshold value is compared；If the offset distance obtained every time is more than the predetermined deviation threshold value, institute is determined
Stating electronic throttle, there are failures.
Further, the threshold value judgment module 502 is also used to detecting that it is described first that the actual deviation distance is equal to
When beginning offset distance, determine that the electronic throttle is in non-moving state；Non-moving state is in the electronic throttle
When, the described of the second preset times is carried out to the electronic throttle and rushes valve operation；At the end of rushing valve operation every time, institute is obtained
State the offset distance between electronic throttle and the preset standard position, and by the offset distance of acquisition and the initial deviation
Distance is compared；If the offset distance obtained every time is equal to the initial deviation distance, the electronic throttle is determined
There are failures.
Further, the electronic throttle failure solving device further includes carbon distribution cleaning module, and the carbon distribution cleans mould
Block, the current supply voltage and the electronic throttle for obtaining the corresponding electronic control unit of electronic throttle are corresponding
Current intake air temperature；It detects the current intake air temperature and whether the current supply voltage is all satisfied default automatically cleaning item
Part；If satisfied, then carrying out carbon cleaning operation to the electronic throttle, the carbon cleaning operation includes that carbon distribution automatically cleaning is grasped
Drift correction after work and the carbon distribution automatically cleaning operate operates；At the end of drift correction operation, institute is obtained
State the deviation between electronic throttle and the preset standard position；Judge whether the deviation is more than the predetermined deviation
Threshold value；When the deviation is no more than the predetermined deviation threshold value, carbon cleaning success is determined.
Further, the carbon distribution cleaning module, is also used to detect whether the current intake air temperature is in preset temperature
Whether range and the current supply voltage are higher than preset voltage value；If the current intake air temperature is in the default temperature
Range is spent, and the current supply voltage is higher than the preset voltage value, then determines to meet the default automatically cleaning condition.
Further, the carbon distribution cleaning module is also used to when the deviation is more than the predetermined deviation threshold value, then
The carbon cleaning operation of third preset times is carried out to the electronic throttle；At the end of the operation of each carbon cleaning,
The deviation between the electronic throttle and the preset standard position is obtained, and the deviation of acquisition is preset partially with described
Poor threshold value is compared；If the deviation obtained every time is more than the predetermined deviation threshold value, the electronic throttle is determined
There are failures.
The other embodiments or specific implementation of electronic throttle failure solving device of the present invention can refer to above-mentioned each side
Method embodiment, details are not described herein again.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as read-only memory/random access memory, magnetic disk, CD), including some instructions are used so that a terminal device (can
To be mobile phone, computer, server, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of electronic throttle failure solution, which is characterized in that the described method includes:
Obtain the initial deviation distance between electronic throttle present position and preset standard position；
Judge whether the initial deviation distance is more than predetermined deviation threshold value, by default duty ratio to the electronics section if being more than
Valve carries out rushing valve operation；
Obtain the actual deviation distance rushed at the end of valve operates between the electronic throttle and the preset standard position；
When detecting that the actual deviation distance is no more than the predetermined deviation threshold value, determine that the electronic throttle is not present
Failure.
2. the method as described in claim 1, which is characterized in that described to detect that it is described that the actual deviation distance is no more than
When predetermined deviation threshold value, judgement is described to be rushed before the successful step of valve operation, the method also includes:
The actual deviation distance is compared with the initial deviation distance；
If the actual deviation distance is less than the initial deviation distance, determine that the electronic throttle is in moving condition,
And detect whether the actual deviation distance is more than the predetermined deviation threshold value.
3. method according to claim 2, which is characterized in that whether the detection actual deviation distance is more than described pre-
If after the step of deviation threshold, the method also includes:
If the actual deviation distance is more than the predetermined deviation threshold value, the first preset times are carried out to the electronic throttle
It is described rush valve operation；
At the end of rushing valve operation every time, the offset distance between the electronic throttle and the preset standard position is obtained,
And the offset distance of acquisition is compared with the predetermined deviation threshold value；
If the offset distance obtained every time is more than the predetermined deviation threshold value, determine that there are failures for the electronic throttle.
4. method according to claim 2, which is characterized in that it is described by the actual deviation distance and the initial deviation away from
After the step of being compared, the method also includes:
If the actual deviation distance is equal to the initial deviation distance, determine that the electronic throttle is in non-moving shape
State；
When the electronic throttle is in non-moving state, the punching of the second preset times is carried out to the electronic throttle
Valve operation；
At the end of rushing valve operation every time, the offset distance between the electronic throttle and the preset standard position is obtained,
And the offset distance of acquisition is compared with the initial deviation distance；
If the offset distance obtained every time is equal to the initial deviation distance, determine that there are failures for the electronic throttle.
5. the method as described in claim 1, which is characterized in that the acquisition electronic throttle present position and pre- bidding
Level set between initial deviation apart from the step of before, the method also includes:
It obtains the current supply voltage of the corresponding electronic control unit of electronic throttle and the electronic throttle is corresponding works as
Preceding intake air temperature；
It detects the current intake air temperature and whether the current supply voltage is all satisfied default automatically cleaning condition；
If satisfied, then carrying out carbon cleaning operation to the electronic throttle, the carbon cleaning operation includes carbon distribution automatically cleaning
Drift correction after operation and the carbon distribution automatically cleaning operate operates；
At the end of drift correction operation, the deviation between the electronic throttle and the preset standard position is obtained
Value；
Judge whether the deviation is more than the predetermined deviation threshold value；
When the deviation is no more than the predetermined deviation threshold value, carbon cleaning success is determined.
6. method as claimed in claim 5, which is characterized in that the detection current intake air temperature and the current confession
Whether piezoelectric voltage is all satisfied the step of default automatically cleaning condition, comprising:
Detect the current intake air temperature whether be in preset temperature range and the current supply voltage whether be higher than it is default
Voltage value；
If the current intake air temperature is in the preset temperature range, and the current supply voltage is higher than the predeterminated voltage
Value then determines to meet the default automatically cleaning condition.
7. method as claimed in claim 5, which is characterized in that described to judge whether the deviation is more than the predetermined deviation
After the step of threshold value, the method also includes:
When the deviation is more than the predetermined deviation threshold value, then the institute of third preset times is carried out to the electronic throttle
State carbon cleaning operation；
At the end of the operation of each carbon cleaning, the deviation between the electronic throttle and the preset standard position is obtained
Value, and the deviation of acquisition is compared with the predetermined deviation threshold value；
If the deviation obtained every time is more than the predetermined deviation threshold value, determine that there are failures for the electronic throttle.
8. a kind of electronic throttle failure solving device, which is characterized in that described device includes:
Distance obtain module, for obtain the initial deviation between electronic throttle present position and preset standard position away from
From；
Threshold value judgment module, for judging whether the initial deviation distance is more than predetermined deviation threshold value, by default if being more than
Duty ratio carries out the electronic throttle to rush valve operation；
The distance obtains module, is also used to obtain the electronic throttle and the preset standard at the end of rushing valve operation
Actual deviation distance between position；
Breakdown judge module, for determining institute when detecting that the actual deviation distance is no more than the predetermined deviation threshold value
Stating electronic throttle, there is no failures.
9. a kind of electronic throttle failure solves system, which is characterized in that the system comprises: electronic control unit, engine,
It electronic throttle, cooler for recycled exhaust gas, exhaust gas recirculation valve and is stored on the electronic control unit and can be described
The electronic throttle failure settlement procedure run on electronic control unit, the electronic throttle failure settlement procedure are configured to reality
Now the step of electronic throttle failure solution as described in any one of claims 1 to 7.
10. a kind of storage medium, which is characterized in that be stored with electronic throttle failure settlement procedure, institute on the storage medium
It states when electronic throttle failure settlement procedure is executed by processor and realizes electronic throttle as described in any one of claim 1 to 7
The step of door failure solution.
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| CN201910494804.4A CN110219744B (en) | 2019-06-06 | 2019-06-06 | Electronic throttle failure solving method, device, system and storage medium |
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| CN110410222A (en) * | 2019-09-26 | 2019-11-05 | 潍柴动力股份有限公司 | The judgment method and equipment of throttle opening failure |
| CN110529249A (en) * | 2019-09-19 | 2019-12-03 | 潍柴动力股份有限公司 | Air throttle method for detecting abnormality and equipment |
| CN110609538A (en) * | 2019-09-30 | 2019-12-24 | 潍柴动力股份有限公司 | Fault processing method, device, equipment and storage medium |
| CN111140377A (en) * | 2019-12-31 | 2020-05-12 | 潍柴动力股份有限公司 | Method and device for detecting misloading of throttle valve, storage medium and electronic equipment |
| CN112197054A (en) * | 2020-09-28 | 2021-01-08 | 东风商用车有限公司 | Valve self-cleaning control method with position feedback |
| CN112360639A (en) * | 2020-09-23 | 2021-02-12 | 东风汽车集团有限公司 | Fault monitoring method and device for throttle valve actuator |
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| CN113062807A (en) * | 2021-03-31 | 2021-07-02 | 东风商用车有限公司 | Method and equipment for controlling clamping stagnation fault of throttle valve |
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| CN112197054B (en) * | 2020-09-28 | 2022-07-05 | 东风商用车有限公司 | Valve self-cleaning control method with position feedback |
| CN112197054A (en) * | 2020-09-28 | 2021-01-08 | 东风商用车有限公司 | Valve self-cleaning control method with position feedback |
| CN112631125A (en) * | 2020-12-28 | 2021-04-09 | 潍柴动力股份有限公司 | Throttle valve self-learning control method and device, storage medium and electronic equipment |
| CN112631125B (en) * | 2020-12-28 | 2022-11-29 | 潍柴动力股份有限公司 | Throttle valve self-learning control method and device, storage medium and electronic equipment |
| CN113187629A (en) * | 2021-03-29 | 2021-07-30 | 广西玉柴机器股份有限公司 | Method and device for processing state of EGR valve |
| CN113062807A (en) * | 2021-03-31 | 2021-07-02 | 东风商用车有限公司 | Method and equipment for controlling clamping stagnation fault of throttle valve |
| CN113588237A (en) * | 2021-07-30 | 2021-11-02 | 东风商用车有限公司 | Torque motor valve spring detection method, device, equipment and storage medium |
| CN113588237B (en) * | 2021-07-30 | 2023-11-28 | 东风商用车有限公司 | Torque motor valve spring detection method, device, equipment and storage medium |
| CN116014193A (en) * | 2023-01-31 | 2023-04-25 | 重庆长安新能源汽车科技有限公司 | Fuel cell throttle valve clamping stagnation escaping control method, device, equipment and medium |
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