CN106383024B - The stagnant test method of electronic throttle microcaloire - Google Patents
The stagnant test method of electronic throttle microcaloire Download PDFInfo
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- CN106383024B CN106383024B CN201610862146.6A CN201610862146A CN106383024B CN 106383024 B CN106383024 B CN 106383024B CN 201610862146 A CN201610862146 A CN 201610862146A CN 106383024 B CN106383024 B CN 106383024B
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- valve plate
- electronic throttle
- physical slot
- microcaloire
- stagnant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a kind of stagnant test methods of electronic throttle microcaloire, comprising the following steps: control valve plate reaches mechanical top dead center position；After mechanically dead-centre position was stopped less than 30 seconds, electron throttle motor powers off and is shorted motor positive and negative anodes；Valve plate physical slot is returned to valve plate；The process data of valve plate stop to valve plate physical slot from machinery is acquired；The process data of mechanical top dead centre to valve plate physical slot section is compared with standard value range；If process data exceeds standard value range, judges electronic throttle there are microcaloires and is stagnant；If process data in standard value range, judges electronic throttle, there is no microcaloire is stagnant.The stagnant test method of electronic throttle microcaloire of the present invention is implemented simply, can effectively pick out all kinds of clamping stagnation parts, prevents unqualified part from flowing out, improves the recall rate of electronic throttle clamping stagnation.
Description
Technical field
The present invention relates to a kind of engine component testing methods, more particularly to a kind of test of engine air throttle
Method.
Background technique
The main function of electronic throttle is the load according to engine, controls the charge flow rate of engine, determines to start
The operating condition of machine.Electronic throttle is installed on the engine, for controlling the oil mass (being commonly called as throttle) for entering cylinder combustion, is opened
Degree is bigger, and the fuel mixture into cylinder is more, and engine speed is higher, changes the aperture of throttle, to reach control hair
The purpose of motivation revolving speed height；Electronic throttle is onboard an important component, once breaking down will be abnormally dangerous, institute
To devise a set of reset spring on electronic air throttle body, it can guarantee to break down when Electronic Throttle Control.Direct current
When machine can not work, electronic throttle gate valve returns to closed position, enables the engine to work in the state of high idle speed, this
The design of sample can occur dangerous to avoid engine mounted longitudinally racing.Power assisting device to guarantee on vehicle works normally, and has driver sufficiently
Leeway the automobile of failure is parked in the place of a safety, electronic throttle should keep certain aperture.
Electronic throttle is the execution unit of electronic throttle system, electronic air throttle body by electronic throttle driving motor,
The composition such as reset spring and position sensor for electronic throttle valve.The position of electronic throttle valve plate adjusts control by 1 direct current generator
System, the motor can allow electronic throttle valve plate to rotate in the range of 0-90 degree, pass through angular transducer and signal processing electricity
The mechanical angle of valve plate is converted to the output of voltage percentage signal, to obtain desired electronic throttle aperture by road.Valve plate is complete
Machinery top dead centre is the position OMA when portion opens, and machinery lower dead center is the position UMA when valve plate completely closes, when motor is not powered, valve
The physical slot of plate is NLP.In addition, this adjusting motor itself is equipped with position sensor, it can be by the position of electronic throttle
Confidence breath feeds back to control computer, forms closed-loop control.In this way, motor can after control instruction is transmitted to motor by computer
Electronic throttle valve plate rotational positioning is correctly allowed according to the information of sensor feedback.
Electronic throttle valve spindle is connected with a reset spring, and reset spring and motor opposite direction act on electronic throttle,
In this way, in the case where thrashing, reset spring can make the disc of electronic throttle reset to initial position to be in one
Small aperture can guarantee that enough air mass flows allow vehicle to reach overhaul stand without casting anchor, reach traffic safety
Purpose.
When producing electronic throttle, since assembly or raw material (intermediate gear, integrated motor) defect cause valve plate to exist
Meeting clamping stagnation when no current returns, when being parked in valve plate physical slot NLP and fully open valve plate between machinery top dead centre OMA.Existing nothing
Electric current returns to test and 100% can not detect, causes unqualified electronic throttle to flow out, electronic throttle clamping stagnation occurs after sale
It complains.
And existing no current return test can not detect clamping stagnation part.Existing no current returns to test process are as follows: 1.5-2 peace
Training electric current drives electronic throttle valve plate to the position mechanical top dead centre OMA；Mechanically the position stop OMA stops 0.5-1 seconds；It is disconnected
Electricity allows valve plate to return to valve plate physical slot NLP；The output signal of stop OMA to valve plate physical slot NLP from machinery is acquired, is led to
It crosses algorithm and judges whether electronic throttle returns to valve plate physical slot NLP；Judge whether time of return Δ t complies with standard value range
It is required that.Valve plate is when stop OMA returns to valve plate physical slot NLP from machinery, since spring-return power is enough to overcome clamping stagnation power, greatly
Most clamping stagnation parts can normally return to valve plate physical slot NLP, and time of return Δ t value also complies with standard value range requirement, because
This, the method 100% cannot detect clamping stagnation part.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of stagnant test methods of electronic throttle microcaloire, can be effective
All kinds of clamping stagnation parts are picked out, the recall rate of electronic throttle clamping stagnation is improved.
In order to solve the above technical problems, the present invention provides a kind of stagnant test methods of electronic throttle microcaloire, including with
Lower step:
It controls valve plate and reaches mechanical top dead center position；
After mechanically dead-centre position was stopped less than 30 seconds, electron throttle motor powers off and is shorted motor positive and negative anodes；
Valve plate is waited to return to valve plate physical slot, and to valve plate mistake number of passes of the stop to valve plate physical slot from machinery
According to being acquired；
The process data of mechanical top dead centre to valve plate physical slot section is compared with standard value range；
If process data exceeds standard value range, judges electronic throttle there are microcaloires and is stagnant；
If process data in standard value range, judges electronic throttle, there is no microcaloire is stagnant.
The beneficial effect of the stagnant test method of electronic throttle microcaloire of the present invention is: method implement it is simple, can be with
All kinds of clamping stagnation parts are effectively picked out, prevent unqualified part from flowing out, improve the recall rate of electronic throttle clamping stagnation.
Preferably, after the process data to valve plate stop to valve plate physical slot from machinery is acquired, if valve
Plate physical slot voltage output value then judges that valve plate is not returned to valve plate physical slot not within the scope of standard output value.
Preferably, after the process data to valve plate stop to valve plate physical slot from machinery is acquired, if valve
Plate physical slot voltage output value then judges that valve plate returns to valve plate physical slot within the scope of standard output value.
Preferably, the microcaloire is stagnant can return to valve plate physical slot for final valve plate, but valve plate from machinery stop to valve
During plate physical slot, there is stop in some position therebetween.
Preferably, the microcaloire is stagnant can return to valve plate physical slot for final valve plate, but valve plate from machinery stop to valve
During plate physical slot, time of return is longer than standard time.
Preferably, after mechanically dead-centre position stops 0.5 to 1 second, electron throttle motor powers off and is shorted motor
Positive and negative anodes.
Preferably, electronic throttle electrical power control valve plate reaches mechanical top dead center position；Reset spring pulls valve plate
Return to valve plate physical slot.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the method for the invention general flow chart；
Fig. 2 is one the method flow chart of the embodiment of the present invention；
Fig. 3 is two the method flow chart of the embodiment of the present invention；
Fig. 4 is three the method flow chart of the embodiment of the present invention；.
Specific embodiment
The stagnant test method of electronic throttle microcaloire of the present invention highlights clamping stagnation failure mode using motor method is shorted.Work as electricity
Sub- air throttle valve plate no current is when stop OMA returns to valve plate physical slot NLP from machinery, since spring-return power is enough to overcome
Clamping stagnation power, most of clamping stagnation parts can normally return to valve plate physical slot NLP, and time of return also complies with standard value range and wants
It asks, it is therefore necessary to which the return speed for reducing valve plate highlights catching phenomenon.Being shorted motor method is returned in electronic throttle no current
It powers off while being shorted motor positive and negative anodes, overcome a part of spring-return power using the effect of motor reaction gesture, valve plate is made to be back to valve
Plate physical slot NLP speed slows down.After driving electronic throttle to the position mechanical top dead centre OMA, powers off while being shorted to motor
Motor positive and negative anodes detect the electric current of electric motor loop, and the current maxima generated during being shorted is 1.1 amperes and the duration is small
In 1 second, much smaller than permission 3 amperes of locked rotor current, 30 seconds, therefore the method will not damage electronic throttle door motor.
The valve plate of clamping stagnation part of the present invention from machinery stop OMA to the return course of valve plate physical slot NLP, have with
Lower three kinds of failure modes:
Big clamping stagnation mode: for big clamping stagnation part compared with standard component, final valve plate can not return to valve plate physical slot NLP, be parked in
Some position between valve plate physical slot NLP and mechanical top dead centre OMA.
The stagnant mode one of microcaloire: final valve plate can return to valve plate physical slot NLP, but in valve plate physical slot NLP and machinery
There is short time stop in some position between top dead centre OMA.
The stagnant mode two of microcaloire: final valve plate can return to valve plate physical slot NLP, but time of return is long compared with the standard component time.
The stagnant set for the stagnant mode one of microcaloire and the stagnant mode two of microcaloire of microcaloire of the present invention.
The method of the invention can be implemented by flow chart described in Fig. 1.The following steps are included:
It is powered using power supply electron throttle motor, control valve plate reaches mechanical top dead centre OMA.
After the valve plate mechanically position stop OMA stop was less than 30 seconds, is powered off to motor and be shorted motor positive and negative anodes.Its is excellent
Selecting scheme is that mechanically the position stop OMA stops 0.5 to 1 second valve plate.
It waits reset spring that valve plate is pulled to return to valve plate physical slot NLP, and process data is acquired.
If valve plate physical slot voltage output value is greater than standard output value, judge that valve plate is not returned to valve plate nature position
It sets, directly judgement electronic throttle is unqualified part, and demarcating its failure mode is big clamping stagnation mode.
If valve plate physical slot voltage output value is less than or equal to standard output value, the stagnant test of next step microcaloire is carried out.
Then, NLP sections of return curves of machinery top dead centre OMA- valve plate physical slot are intercepted, and are differentiated, are obtained
Mechanical NLP sections of differential curves of top dead centre OMA- valve plate physical slot, differential value judge differential value compared with standard value range
Whether in standard value range.
If differential value, in standard value range, electronic throttle is qualification.
If differential value is not in standard value range, and valve plate is from machinery during stop to valve plate physical slot,
There is short time stop in some position therebetween, then there are above-mentioned microcaloires stagnant one for electronic throttle.Determine that electronic throttle is not conform to
Lattice part, and demarcating its failure mode is the stagnant mode one of microcaloire.
If differential value is not in standard value range, and valve plate is from machinery during stop to valve plate physical slot,
Time of return is long compared with the standard time, then judging electronic throttle, there are above-mentioned microcaloires stagnant two.Determine that electronic throttle is unqualified
Part, and demarcating its failure mode is the stagnant mode two of microcaloire.
The present invention can also or be subdivided into following three embodiments and implement respectively.
Embodiment one, big clamping stagnation mode detection method:
As shown in Fig. 2, being powered using power supply electron throttle motor, control valve plate reaches mechanical top dead centre OMA.
After the valve plate mechanically position stop OMA stop 0.5-1 seconds, is powered off to motor and be shorted motor positive and negative anodes.
It waits reset spring that valve plate is pulled to return to valve plate physical slot NLP, and process data is acquired.
If valve plate physical slot voltage output value is greater than standard output value, judge that valve plate is not returned to valve plate nature position
It sets, directly judgement electronic throttle is unqualified part, and demarcating its failure mode is big clamping stagnation mode.
If valve plate physical slot voltage output value is less than or equal to standard output value, the stagnant test of next step microcaloire is carried out,
Or stop test.
Stagnant one test method of mode of embodiment two, microcaloire:
As shown in figure 3, being powered using power supply electron throttle motor, control valve plate reaches mechanical top dead centre OMA.
After the valve plate mechanically position stop OMA stop 0.5-1 seconds, is powered off to motor and be shorted motor positive and negative anodes.
It waits reset spring that valve plate is pulled to return to valve plate physical slot NLP, and process data is acquired.
If valve plate physical slot voltage output value is less than or equal to standard output value, judge that valve plate returns to valve plate nature
Position carries out subsequent judgement.
NLP sections of return curves of machinery top dead centre OMA- valve plate physical slot are intercepted, and are differentiated, are obtained mechanically
Stop OMA- NLP sections of differential curves of valve plate physical slot, differential value compared with standard value range, judge differential value whether
In standard value range.
If differential value, in standard value range, electronic throttle is qualification.
If differential value is not in standard value range, and valve plate is from machinery during stop to valve plate physical slot,
There is short time stop in some position therebetween, then there are above-mentioned microcaloires stagnant one for electronic throttle.Determine that electronic throttle is not conform to
Lattice part, and demarcating its failure mode is the stagnant mode one of microcaloire.
Stagnant two test method of mode of embodiment three, microcaloire:
As shown in figure 4, being powered using power supply electron throttle motor, control valve plate reaches the machinery position top dead centre OMA.
Usage data collection board acquires electronic throttle output signal.
After the position mechanical top dead centre OMA stops 0.5-1 seconds, is powered off to motor and be shorted motor positive and negative anodes.
It waits valve plate to return to valve plate physical slot NLP, and process data is acquired.
If valve plate physical slot voltage output value is less than or equal to standard output value, judge that valve plate returns to valve plate nature
Position carries out subsequent judgement.
NLP sections of return curves of machinery top dead centre OMA- valve plate physical slot are intercepted, and are differentiated, are obtained mechanically
Stop OMA- NLP sections of differential curves of valve plate physical slot, differential value compared with standard value range, judge differential value whether
In standard value range.
If differential value, in standard value range, electronic throttle is qualification.
If differential value is not in standard value range, and valve plate is from machinery during stop to valve plate physical slot,
Time of return is long compared with the standard time, then judging electronic throttle, there are above-mentioned microcaloires stagnant two.Determine that electronic throttle is unqualified
Part, and demarcating its failure mode is the stagnant mode two of microcaloire.
The stagnant test of microcaloire of the present invention reduces valve plate return speed, highlights all kinds of clamping stagnations by being shorted motor positive and negative anodes
Defect analyzes and determines all kinds of clamping stagnation defect part output signal curves by differential algorithm, effectively picks out all kinds of cards
Stagnant part prevents unqualified part from flowing out.Microcaloire test method of the present invention is implemented simply, in the situation that production line beat is enough
Under, it is only necessary to respective algorithms are added in electronic throttle functional test station, are greatly improved electronics using this test method
The recall rate of air throttle clamping stagnation.
This method can also be used for other electronic throttles driven by direct current generator, in electronic throttle motion process
In, it, can be by differentiating to movement travel if inconvenient directly detect running speed, analysis electronic throttle is moved through
Characteristic in journey judges in motion process with the presence or absence of pause, clamping stagnation.
The present invention is not limited to embodiments discussed above.The description of specific embodiment is intended to above in order to retouch
State and illustrate technical solution of the present invention.The obvious transformation or substitution enlightened based on the present invention should also be as being considered
Fall into protection scope of the present invention.Above specific embodiment is used to disclose best implementation method of the invention, so that this
The those of ordinary skill in field can reach of the invention using numerous embodiments of the invention and a variety of alternatives
Purpose.
Claims (9)
1. a kind of stagnant test method of electronic throttle microcaloire, which comprises the following steps:
It controls valve plate and reaches mechanical top dead center position；
After mechanically dead-centre position was stopped less than 30 seconds, electron throttle motor powers off and is shorted motor positive and negative anodes；
Wait valve plate to return to valve plate physical slot, and to valve plate from machinery stop to valve plate physical slot process data into
Row acquisition；
The process data of mechanical top dead centre to valve plate physical slot section is compared with standard value range；
If process data exceeds standard value range, judges electronic throttle there are microcaloires and is stagnant；
If process data in standard value range, judges electronic throttle, there is no microcaloire is stagnant.
2. the stagnant test method of electronic throttle microcaloire according to claim 1, which is characterized in that valve plate from machinery
After the process data of stop to valve plate physical slot is acquired, if valve plate physical slot voltage output value is not in standard output
It is worth in range, then judges that valve plate is not returned to valve plate physical slot.
3. the stagnant test method of electronic throttle microcaloire according to claim 1 or 2, which is characterized in that valve plate slave
After the process data of tool top dead centre to valve plate physical slot is acquired, if valve plate physical slot voltage output value is defeated in standard
It is worth in range out, then judges that valve plate returns to valve plate physical slot.
4. the stagnant test method of electronic throttle microcaloire according to claim 3, which is characterized in that the stagnant microcaloire is final
Valve plate can return to valve plate physical slot, but valve plate is from machinery during stop to valve plate physical slot, therebetween some position
It is equipped with stop.
5. the stagnant test method of electronic throttle microcaloire according to claim 3, which is characterized in that the stagnant microcaloire is final
Valve plate can return to valve plate physical slot, but valve plate, from machinery during stop to valve plate physical slot, time of return is than mark
It is long between punctual.
6. the stagnant test method of electronic throttle microcaloire according to claim 4, which is characterized in that mechanically dead-centre position
After stopping 0.5 to 1 second, electron throttle motor powers off and is shorted motor positive and negative anodes.
7. the stagnant test method of electronic throttle microcaloire according to claim 6, which is characterized in that electronic throttle door motor is logical
Electric control valve plate reaches mechanical top dead center position；Reset spring pulls valve plate to return to valve plate physical slot.
8. the stagnant test method of electronic throttle microcaloire according to claim 5, which is characterized in that mechanically dead-centre position
After stopping 0.5 to 1 second, electron throttle motor powers off and is shorted motor positive and negative anodes.
9. the stagnant test method of electronic throttle microcaloire according to claim 8, which is characterized in that electronic throttle door motor is logical
Electric control valve plate reaches mechanical top dead center position；Reset spring pulls valve plate to return to valve plate physical slot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610862146.6A CN106383024B (en) | 2016-09-29 | 2016-09-29 | The stagnant test method of electronic throttle microcaloire |
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| CN201610862146.6A CN106383024B (en) | 2016-09-29 | 2016-09-29 | The stagnant test method of electronic throttle microcaloire |
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| CN106383024B true CN106383024B (en) | 2019-03-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775421A (en) * | 2021-09-02 | 2021-12-10 | 宁波协诚电动工具有限公司 | Electric actuator and control method thereof and commercial vehicle |
| CN113958760B (en) * | 2021-12-21 | 2022-03-04 | 中国空气动力研究与发展中心超高速空气动力研究所 | Method and device for processing jamming of execution mechanism |
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| CN106383024A (en) | 2017-02-08 |
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