CN104131906B - The fault detection method of air throttle and fault detection system - Google Patents
The fault detection method of air throttle and fault detection system Download PDFInfo
- Publication number
- CN104131906B CN104131906B CN201410307676.5A CN201410307676A CN104131906B CN 104131906 B CN104131906 B CN 104131906B CN 201410307676 A CN201410307676 A CN 201410307676A CN 104131906 B CN104131906 B CN 104131906B
- Authority
- CN
- China
- Prior art keywords
- air throttle
- aperture
- throttle
- fault
- action
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The present invention discloses fault detection method and the detecting system of a kind of air throttle, comprises the steps: 1) set throttle opening, and control air throttle according to the aperture action set；2) the detection actual aperture of air throttle；3) according to actual aperture and setting aperture, judge that air throttle is whether it is anticipated that direction action, and judge that the action command controlling air throttle action the most normally exports, if not it is anticipated that direction action and output are normal, then assert that air throttle generation H-bridge drive circuit both positive and negative polarity connects anti-fault.This detecting system and detection method, can find the concrete reason that air throttle cannot run well, beneficially staff to solve problem for failure cause in time, improve malfunction elimination efficiency.Additionally, according to air throttle action trend, this kind of detection mode only i.e. can determine whether whether air throttle breaks down and fault concrete reason, the detection time is short, it is to avoid air throttle is stuck in standard-sized sheet or closed positions towards rightabout action constantly, thus avoids structural failure.
Description
Technical field
The present invention relates to technical field of engines, particularly to the fault detect side of a kind of air throttle
Method and fault detection system.
Background technology
In engine working process, its cylinder needs air inlet, can be by the aperture of electronic throttle
Control air input of engine by air.The aperture size of electronic throttle (hereinafter referred to as air throttle) is then
Motor Spin Control is driven by the signal of telecommunication.
Air throttle includes throttle body, drives motor and TPS etc..Electromotor
ECU output order makes driving motor action, rotates through drive mechanism throttle valve body, reaches
Throttle opening needed for working to electromotor.
Air throttle takes closed loop control, and typically, PID is output as on the occasion of then to driving one, motor
Rotating forward excitation, PID is output as negative value then to driving one negative sense of motor to rotate excitation.PID
Output driving force and spring mechanical power jointly act on driving motor, control to drive turning of motor
Dynamic.
In existing gas engine control strategy, ECU can carry out self study to air throttle after powering on
Detection, but typically can only judge whether air throttle breaks down, the tool of air throttle can not be judged
Body fault, needs to check further confirmation, inefficiency；And, when the self study time is longer,
Often occur air throttle to be stuck in standard-sized sheet or fully closed position, cause structural failure.
In view of this, how to improve the fault detection method of air throttle, so that fault discovery is concrete
Change, be those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
For solving above-mentioned technical problem, the purpose of the present invention is for providing the fault inspection of a kind of air throttle
Survey method and fault detection system, the method and system make fault discovery embody.
The fault detection method of the air throttle that the present invention provides, comprises the steps:
1) set throttle opening, and control air throttle according to the aperture action set；
2) the detection actual aperture of air throttle；
3) according to actual aperture and setting aperture, it is judged that whether air throttle is it is anticipated that direction is moved
Make, and judge control air throttle action action command the most normally export, if not it is anticipated that
Direction action and output are normal, then assert that air throttle generation H-bridge drive circuit both positive and negative polarity connects anti-event
Barrier.
Preferably,
Step 1) further comprise the steps of: before
10) the detection actual aperture of air throttle, and judge that this actual aperture and air throttle are in nature
Whether aperture during state is consistent, the most then enter step 1), if it is not, then assert air throttle
There is stuck fault, and/or the position sensor of detection throttle position breaks down.
Preferably,
Step 1) in, the throttle opening of setting more than air throttle in the raw time open
Degree.
Preferably, the throttle opening set is as between 15% to 20%.
Preferably,
After assert that air throttle produces fault, during electromotor work, stop controlling throttle opening.
Preferably,
After assert that air throttle produces fault, send alarm signal.
The present invention also provides for the fault detection system of a kind of air throttle, including controller and detection joint
The detection device of valve opening, the actual aperture of air throttle of described detection device output detections is to institute
State controller；Described controller is set with the aperture of air throttle, and control described air throttle according to
The aperture action set, described controller judges institute according to the actual aperture of air throttle and setting aperture
When stating air throttle not it is anticipated that direction action and action command normally export, then assert air throttle
H-bridge drive circuit both positive and negative polarity is occurred to connect anti-fault.
Preferably,
Described controller judges opening when the actual aperture of air throttle is with air throttle in the raw
When degree is consistent, then control described air throttle according to setting aperture action, otherwise, described controller
Assert that described air throttle occurs stuck fault, and/or the position sensor of detection throttle position is sent out
Raw fault.
Preferably,
The throttle opening set in described controller more than air throttle in the raw time
Aperture.
Preferably,
The throttle opening set in described controller is as between 15% to 20%.
Preferably,
After described controller assert that air throttle produces fault, during electromotor work, described controller
Stop controlling throttle opening.
Preferably,
Also include alarm device, after described controller assert that air throttle produces fault, output order
To described alarm device, to send alarm signal.
The fault detection system of above-mentioned air throttle and detection method, can find the air throttle cannot be just
The often concrete reason of operating, connects anti-or action command output including H-bridge drive circuit both positive and negative polarity
Abnormal, beneficially staff solves problem for failure cause in time, improves malfunction elimination effect
Rate, is also beneficial to producer and solves a problem promptly or remind user change in time or repair air throttle,
Remove a hidden danger, provide for follow-up engine work and ensure.It addition, this kind of detection mode
As long as the action trend according to air throttle i.e. can determine whether whether air throttle breaks down and fault tool
Body reason, the detection time is short, when H-bridge drive circuit both positive and negative polarity connects inverse time, can have soon found that
Fault, during in order to avoid detecting for a long time, air throttle is stuck in towards rightabout action constantly entirely
Open or closed positions, thus avoid structural failure.
Accompanying drawing explanation
Fig. 1 is the flow chart of throttle fault detection method first embodiment provided by the present invention；
Fig. 2 is the flow chart of throttle fault detection method the second embodiment provided by the present invention.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, knot below
The present invention is described in further detail to close the drawings and specific embodiments.For ease of understanding and letter
Clean description, fault detection method and fault detection system below in conjunction with air throttle carry out example and say
Bright, beneficial effect is not repeated to discuss.
Refer to Fig. 1, Fig. 1 is throttle fault detection method first embodiment provided by the present invention
Flow chart.
Air throttle (i.e. electronic throttle) fault detection system in the present embodiment includes controller
With the detection device of detection throttle opening, it can be the position sensor of air throttle.Detection dress
Putting and export the throttle opening amount signal of detection to controller, controller is by throttle opening amount signal
With target aperture contrast, output order so that drive air throttle action driving motor rotate forward or
Reversion, thus ensure that air throttle shifts to target location.Controller output order can be that PID is defeated
Go out instruction, the most proportionally, integral differential calculate controlled quentity controlled variable, carry out aperture control.This event
Air throttle can be tested by barrier detecting system before the engine is started.
Concrete detecting step is as follows:
S11, setting throttle opening, and control air throttle according to the aperture action set；
S12, the detection actual aperture of air throttle；
S13, according to actual aperture with set aperture, it is judged that whether air throttle it is anticipated that direction
Action, no, then enter step S14, be, then enter step S17；
S14, judge control air throttle action action command the most normally export, be then to enter
Enter step S15, no, then enter step S16；
As it has been described above, action command can be PID output valve, it is assumed that PID output on the occasion of, drive
Motor rotates forward so that throttle opening increases, and PID exports negative value, drives motor reversal with envoy
Valve opening reduces.Then, when according to setting aperture, it is contemplated that when direction of action is to increase aperture,
In step S14, PID output valve is on the occasion of belonging to normal output, and negative value is output abnormality.
S15, identification air throttle generation H-bridge drive circuit both positive and negative polarity connect anti-fault, enter step
S17。
Motor is driven to be driven by H-bridge drive circuit, H bridge (circuit profile and letter " H "
Similar) it is alternating current by DC inverter, and change the sense of current by the folding of switch, use
In driving motor forward or reverse.Controller regulates according to the normal mode of connection of H-bridge drive circuit
Setting, controller output aperture increases/reduces instruction, and the H bridge sense of current disclosure satisfy that driving joint
Valve opening increases/reduces, but, when the both positive and negative polarity of H-bridge drive circuit connects inverse time, although control
Device output increases/reduces instruction, and the sense of current of H-bridge drive circuit actually can produce air throttle
The reverse energization that aperture reduces/increases.Therefore, through step S13, two steps of S14, it is judged that
When going out air throttle not it is anticipated that direction action and action command output are normal, then can assert solar term
Door occurs H-bridge drive circuit both positive and negative polarity to connect anti-fault.It is appreciated that the priority of S13, S14 is suitable
Sequence is not restricted by.
S16, identification air throttle generation action command output fault, enter step S17.
Air throttle it is anticipated that direction action and action command output abnormality, does not then show air throttle
Action on the contrary by instruction output error cause, H-bridge drive circuit both positive and negative polarity does not connect instead.
When being regulated by PID, i.e. pid algorithm is likely to occur mistake, causes instruction errors, causes solar term
Door is according to rightabout action.
S17, end.
The fault detection system of above-mentioned air throttle and detection method, can find the air throttle cannot be just
The often concrete reason of operating, connects anti-or action command output including H-bridge drive circuit both positive and negative polarity
Abnormal, beneficially staff solves problem for failure cause in time, improves malfunction elimination effect
Rate, is also beneficial to producer and solves a problem promptly or remind user change in time or repair air throttle,
Remove a hidden danger, provide for follow-up engine work and ensure.It addition, this kind of detection mode
As long as the action trend according to air throttle i.e. can determine whether whether air throttle breaks down and fault tool
Body reason, the detection time is short, when H-bridge drive circuit both positive and negative polarity connects inverse time, can have soon found that
Fault, during in order to avoid detecting for a long time, air throttle is stuck in towards rightabout action constantly entirely
Open or closed positions (anti-owing to connecing, to be unable to reach setting aperture all the time), thus avoid structure to damage
Bad.
For above-described embodiment, it is also possible to make improvement further, refer to Fig. 2, Fig. 2 is this
The flow chart of provided throttle fault detection method the second embodiment is provided.
S20, ECU power on, not actuated electromotor；
S21, the detection actual aperture of air throttle；
S22, actual aperture with air throttle in the raw time aperture whether be consistent, if so,
Then enter step S24, if it is not, then enter step S23；
Typically, air throttle is provided with spring, in its natural state, drives motor any if do not given
Driving signal, air throttle can be maintained in a less aperture according to the original state of spring.
Being represented by air throttle opening value angle, θ in its natural state, air throttle is in its natural state
Aperture is usually about 10%, the aperture (0% is fully closed, and 100% is standard-sized sheet) of i.e. 10%, no
Can be slightly different with this value of air throttle, value range [θ 1, θ 2] can be demarcated as.When detecting
The actual aperture of air throttle and naturalness under aperture inconsistent time, be i.e. not in [θ 1, θ 2] it
Between time, then show that air throttle may be stuck, fail under the action of the spring smoothly return, or joint
The position sensor of valve there occurs fault, fails correctly to detect the actual aperture of air throttle, i.e.
There occurs the fault that step S23 is assert.
There is stuck fault, and/or the position sensor of detection air throttle in S23, identification air throttle
Break down, enter step S29.
Assert that after there is above-mentioned fault, air throttle cannot normally work the most, the most no longer enters
Other judgements of row.
S24, set throttle opening as θ+Δ 1, and control air throttle and move according to this setting aperture
Make；
Wherein, Δ 1 is a scalar quantity, and its value is more than 0, i.e. controls air throttle and increases according to aperture
The direction added is run.Herein, the value between Δ 1 desirable 15% to 20%, i.e. give a ratio certainly
The setting value that so aperture under state is bigger can be carried out the detection of the method.In order to avoid there is H
In the case of bridge drive circuit both positive and negative polarity connects instead, setting value crosses conference makes PID regulation more violent, increases
Add the risk that air throttle blocks in closed position.
S25, according to actual aperture and set aperture, it is judged that whether throttle opening reduces, and is,
Then enter step S26, no, then enter step S29；
S26, judge control air throttle action PID instruction whether be continuously on the occasion of, be then to enter
Enter step S27, no, then enter step S28；
Herein, PID is continuously on the occasion of i.e. remaining on the occasion of exceeding certain time, and this time can root
Border working condition calibration factually.PID is continuously and can be shown that action command output is normal on the occasion of certain time.
It practice, PID is on the occasion of being, instruction is correct to be exported, but certain time, then can ensure that
Instruction the most normally exports, in order to avoid certain flashy data influence judged result.
S27, identification air throttle generation H-bridge drive circuit both positive and negative polarity connect anti-fault, and enter step
S29。
S28, identification air throttle generation action command output abnormality fault, and enter step S29.
S29, end.
Compared with first embodiment, this embodiment first detects under naturalness that air throttle is actual to be opened
Degree, to judge that air throttle is the most stuck or whether position sensor breaks down, then such event
Barrier can be detected before air throttle does not makees any action, to improve overhaul efficiency, improves joint
The variation of valve failure cause detection, also avoids affecting the correctness of other failure detection result.
It addition, setting aperture in step S23 more than air throttle in the raw time open
Degree, then connect inverse time when H-bridge drive circuit both positive and negative polarity, and air throttle can move toward the direction that aperture reduces
Make, in order to avoid air throttle is continued towards the direction action of aperture increase and excessively pulls spring to cause bullet
Spring lost efficacy.Certainly, in view of the detection time is the shortest, set aperture less than the solar term under naturalness
Door aperture is also feasible, and simply the second embodiment can reduce and that may be present excessively pulls wind
Danger.
It should be noted that for the various embodiments described above, when controller assert that air throttle there occurs
H-bridge drive circuit both positive and negative polarity connects anti-fault, or during action command output fault, at electromotor
During work, controller can stop controlling throttle opening, i.e. throttle valve is maintained at nature
The aperture of state, maintains certain air inflow, makes electromotor be in limp-home state.Accordingly,
In view of the structure that the embodiment of the present invention can avoid air throttle to be stuck in standard-sized sheet or closed positions causes is damaged
Bad, thus it is easily achieved limp-home function, and detection mode of the prior art is easily caused
Throttle valve structure damages, it is impossible to realize limp-home function.
Also, it should be noted controller noted above can be the ECU that electromotor carries, it is also possible to
Separately put controller module.Alarm device can also be set, when detecting above-mentioned all kinds of fault,
Controller can be reported to the police with output order to alarm device, sends alarm signal, and alarm device is permissible
It is phonetic alarm or signal lights etc..
Fault detection method and fault detect to a kind of air throttle provided by the present invention above
System is all described in detail.Specific case used herein is to the principle of the present invention and reality
The mode of executing is set forth, and the explanation of above example is only intended to help to understand the side of the present invention
Method and core concept thereof.It should be pointed out that, for those skilled in the art,
Under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification,
These improve and modify in the protection domain also falling into the claims in the present invention.
Claims (10)
1. the fault detection method of an air throttle, it is characterised in that comprise the steps:
10) the detection actual aperture of air throttle, and judge that this actual aperture and air throttle are in nature
Whether aperture during state is consistent, the most then enter step 1), if it is not, then assert air throttle
There is stuck fault, and/or the position sensor of detection throttle position breaks down；
1) set throttle opening, and control air throttle according to the aperture action set；
2) the detection actual aperture of air throttle；
3) according to according to the actual aperture after setting aperture action and setting aperture, it is judged that solar term
Whether door is it is anticipated that direction action, and judges the most just controlling the action command of air throttle action
Often output, if not it is anticipated that direction action and output are normal, then assert that air throttle occurs H bridge
Drive circuit both positive and negative polarity connects anti-fault；
Above-mentioned air throttle aperture in the raw, any for the driving motor not giving air throttle
Drive signal, the aperture that air throttle is kept according to the original state of spring.
2. the fault detection method of air throttle as claimed in claim 1, it is characterised in that
Step 1) in, the throttle opening of setting more than air throttle in the raw time aperture.
3. the fault detection method of air throttle as claimed in claim 2, it is characterised in that
The throttle opening set is as between 15% to 20%.
4. the fault detection method of the air throttle as described in any one of claim 1-3, its feature
It is, after assert that air throttle produces fault, during electromotor work, stops controlling throttle opening.
5. the fault detection method of the air throttle as described in any one of claim 1-3, its feature
It is, after assert that air throttle produces fault, sends alarm signal.
6. the fault detection system of an air throttle, it is characterised in that include controller and inspection
Survey the detection device of throttle opening, the actual aperture of air throttle of described detection device output detections
To described controller；If the actual aperture of air throttle is not inconsistent with aperture time in the raw, then
Described controller assert that described air throttle occurs stuck fault, and/or the position of detection throttle position
Put sensor failure；Described controller is set with the aperture of air throttle, and described controller is sentenced
The disconnected actual aperture of air throttle with air throttle in the raw time aperture when being consistent, then control institute
State air throttle according to set aperture action, described controller according to according to setting aperture action after
The actual aperture of air throttle and set aperture judge described air throttle not it is anticipated that direction action and move
Instruct when normally exporting, then assert that air throttle generation H-bridge drive circuit both positive and negative polarity connects anti-fault；
Above-mentioned air throttle aperture in the raw, any for the driving motor not giving air throttle
Drive signal, the aperture that air throttle is kept according to the original state of spring.
7. the fault detection system of air throttle as claimed in claim 6, it is characterised in that
The throttle opening set in described controller more than air throttle in the raw time aperture.
8. the fault detection system of air throttle as claimed in claim 7, it is characterised in that described control
The throttle opening set in device processed is as between 15% to 20%.
9. the fault detection system of the air throttle as described in any one of claim 6-8, its feature
It is, after described controller assert that air throttle produces fault, during electromotor work, described control
Device stops controlling throttle opening.
10. the fault detection system of the air throttle as described in any one of claim 6-8, it is special
Levy and be, also include alarm device, after described controller assert that air throttle produces fault, output
Instruction is to described alarm device, to send alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410307676.5A CN104131906B (en) | 2014-06-30 | 2014-06-30 | The fault detection method of air throttle and fault detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410307676.5A CN104131906B (en) | 2014-06-30 | 2014-06-30 | The fault detection method of air throttle and fault detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104131906A CN104131906A (en) | 2014-11-05 |
| CN104131906B true CN104131906B (en) | 2016-10-19 |
Family
ID=51804722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410307676.5A Active CN104131906B (en) | 2014-06-30 | 2014-06-30 | The fault detection method of air throttle and fault detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104131906B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150728B (en) * | 2015-03-31 | 2019-09-20 | 长城汽车股份有限公司 | The fault detection and processing method of continuous variable valve lift mechanism |
| CN106224108A (en) * | 2016-08-29 | 2016-12-14 | 重庆隆鑫机车有限公司 | Engine electric spray executor's self checking method and system |
| CN106383024B (en) * | 2016-09-29 | 2019-03-01 | 联合汽车电子有限公司 | The stagnant test method of electronic throttle microcaloire |
| CN107228767A (en) * | 2017-07-26 | 2017-10-03 | 安庆市鼎立汽车配件有限公司 | A kind of valve intelligent detecting method analyzed based on aperture |
| CN109386394B (en) * | 2018-09-30 | 2020-10-09 | 安徽江淮汽车集团股份有限公司 | Dynamic diagnosis method for throttle valve |
| CN110529249B (en) * | 2019-09-19 | 2020-12-22 | 潍柴动力股份有限公司 | Throttle valve abnormality detection method and apparatus |
| CN110410222B (en) * | 2019-09-26 | 2020-03-10 | 潍柴动力股份有限公司 | Method and equipment for judging throttle opening fault |
| CN110609538B (en) * | 2019-09-30 | 2021-04-16 | 潍柴动力股份有限公司 | Fault processing method, device, equipment and storage medium |
| CN111856248A (en) * | 2020-07-22 | 2020-10-30 | 中国第一汽车股份有限公司 | Electronic throttle valve driving circuit diagnosis method and system and readable storage medium |
| CN112360639B (en) * | 2020-09-23 | 2021-11-30 | 东风汽车集团有限公司 | Fault monitoring method and device for throttle valve actuator |
| CN112326221B (en) * | 2020-10-28 | 2022-03-29 | 东风汽车集团有限公司 | Valve clamping stagnation simulation equipment and control method |
| CN114320636B (en) * | 2021-12-31 | 2022-09-02 | 中国第一汽车股份有限公司 | Fault diagnosis method for throttle position sensor, vehicle and storage medium |
| CN114484733B (en) * | 2022-01-26 | 2023-07-21 | 宁波奥克斯电气股份有限公司 | Expansion valve control method and device and air conditioning system |
| CN114526144B (en) * | 2022-02-25 | 2023-03-21 | 潍柴动力股份有限公司 | NOx sensor installation position identification method and device, vehicle and medium |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618441A (en) * | 1984-06-22 | 1986-01-16 | Nissan Motor Co Ltd | Accelerator control device in vehicle internal combustion engine |
| DE19706382C2 (en) * | 1997-02-19 | 2003-03-06 | Daimler Chrysler Ag | Procedure for testing for correctly connected lambda probes |
| JPH10299555A (en) * | 1997-04-25 | 1998-11-10 | Mitsubishi Motors Corp | Control device for internal combustion engine with electronic throttle control device |
| JP2009162088A (en) * | 2007-12-28 | 2009-07-23 | Hitachi Ltd | Control device for internal combustion engine |
| CN101498252B (en) * | 2008-01-29 | 2012-02-15 | 华夏龙晖（北京）汽车电子科技有限公司 | Electronic air throttle control device and method |
| US8624531B2 (en) * | 2011-02-24 | 2014-01-07 | Deere & Company | Method and system for evaluating electrical connections between a motor controller and motor |
-
2014
- 2014-06-30 CN CN201410307676.5A patent/CN104131906B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104131906A (en) | 2014-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104131906B (en) | The fault detection method of air throttle and fault detection system | |
| JP5624357B2 (en) | Electronic governor system and control device therefor | |
| CN104696286B (en) | The device of emergency operation for actuator | |
| KR20100064939A (en) | Fail safe controlling method of oil pump control unit for hybrid vehicle | |
| KR20180030221A (en) | Valve control device | |
| JP6778854B2 (en) | Motor control device | |
| EP2800888A1 (en) | Fault detection and correction in valve assemblies | |
| BR112018014688B1 (en) | PRESSURE RELIEF VALVE CONTROL METHOD AND CONTROL DEVICE | |
| KR101465115B1 (en) | Apparatus for controlling of electric governor in vessel | |
| JP2009270492A (en) | Failure diagnosis device of cylinder deactivation system | |
| US10323600B2 (en) | Method for diagnosing failure of power stage of electronic waste gate actuator | |
| WO2019080795A1 (en) | Power-driven tailgate control system and protection method thereof | |
| CN104153839A (en) | Method for self-inspection of continuously variable valve lift mechanism | |
| JP2014009590A (en) | Control device of internal combustion engine with supercharger system | |
| CN106199728A (en) | For detecting the method and system of the fault of the fastening bolt in CVVT | |
| KR101898216B1 (en) | Method of waste gate control for coping with position sensor failure | |
| KR101512396B1 (en) | Apparatus and method for controlling waste gate for turbocharger | |
| US9038597B2 (en) | Electronic throttle control apparatus | |
| JP2005083295A (en) | Device for controlling variable nozzle of turbocharger | |
| JP2007255251A (en) | Device for and method of determining failure of egr control valve | |
| KR20160025325A (en) | Method for Variable Charge Motion Operation Maintenance, Variable Charge Motion System thereof | |
| KR0164297B1 (en) | Limp-home function control method according to the diagnosing result of isc actuator | |
| JP5429146B2 (en) | Throttle control device for internal combustion engine | |
| CN117345452A (en) | Fault processing method, device and system for variable valve speed sensor of engine | |
| KR100448835B1 (en) | Limp home control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |