CN109695564A - A kind of fault detection method and system of electric compressor - Google Patents
A kind of fault detection method and system of electric compressor Download PDFInfo
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- CN109695564A CN109695564A CN201710987408.6A CN201710987408A CN109695564A CN 109695564 A CN109695564 A CN 109695564A CN 201710987408 A CN201710987408 A CN 201710987408A CN 109695564 A CN109695564 A CN 109695564A
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- air compressor
- compressor machine
- instruction
- machine
- entire car
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of fault detection method of electric compressor and systems, detection method therein includes: to detect after vehicle powers on at least one of following: the enabled instruction of air compressor machine whether effectively, air compressor machine control instruction whether effectively, air compressor machine executes instruction state whether communication effectively and between air compressor machine and entire car controller normal；If instruction ignore in above-mentioned any one executes instruction that state is invalid or communication is abnormal, air compressor machine abnormal alarm is carried out.The present invention powers in driving process in vehicle, carries out active detecting by the various faults being likely to occur to air compressor machine, and detection range is wider, is capable of detecting when that air compressor machine various hidden danger that may be present, air compressor machine functional safety degree of protection are high；Compared to off-line test, detection is in time and detection interval is shorter, can be realized detection and troubleshooting to the failure of air compressor system randomness, effectively prevents the problem of air compressor machine disabler seriously affects traffic safety.
Description
Technical field
The present invention relates to a kind of fault detection method of electric compressor and systems, belong to electric compressor safety detection
Technical field.
Background technique
Transformation of traditional car to integral new-energy passenger is the main trend of current car development, the application of electric compressor by
This is also popularized.The safe and effective work of air compressor machine, is directly related to the braking ability of vehicle, seriously affects traffic safety.
So how to guarantee that security performance of the electric compressor in new energy vehicle operational process is that Car design and control strategy are opened
Important process during hair.In the safety lifecycle of air compressor machine, there is following factor to will lead to the mistake of air compressor machine function
Effect: 1) air compressor machine machinery itself, circuit, gas path failure；2) air compressor machine control failure.
For these two aspects, each car quotient factory has carried out relevant research, to ensure service brake safety.It is existing
Detection means for the air compressor machine disabler of pure electric coach implementation is mainly include the following types: 1, engineering exemplar is verified；2,
After air compressor machine entrucking, vehicle off-line test is carried out；3, annual test is carried out after vehicle puts into effect；4, driver goes out in discovery air compressor machine
It is overhauled after existing failure；5, integrated vehicle control tactics receive air compressor machine error code and carry out control processing.
Above-mentioned preceding four kinds of detection means have a common defect: detection interval is too long, and detection pattern is parking detection, inspection
Survey and lack real-time initiative, will lead to detection cannot cover in vehicle travel process it is possible that sporadic failure；
5th kind of detection means can detect the failure of air compressor machine itself, but cannot cover the failure of the entire control loop of air compressor machine.
Therefore, it is necessary to design perfect detection system, air compressor machine disabler is eliminated to the full extent, and then eliminate brake fade
Hidden danger.
Summary of the invention
The object of the present invention is to provide a kind of fault detection method of electric compressor and systems, for solving existing pneumatics
The incomplete problem of machine failure detection.
In order to solve the above technical problems, steps are as follows the present invention provides a kind of fault detection method of electric compressor:
After vehicle powers on, detected at least one of following: the enabled instruction of air compressor machine whether effectively, air compressor machine control
System instruction whether effectively, air compressor machine execute instruction state whether effectively and the communication between air compressor machine and entire car controller be
It is no normal；
If instruction ignore in above-mentioned any one executes instruction that state is invalid or communication is abnormal, air compressor machine is carried out
Abnormal alarm.
It further, further include whether effectively being detected to air compressor machine faults itself code, if air compressor machine faults itself code
Effectively, then air compressor machine abnormal alarm is carried out.
Further, the air compressor machine control instruction includes that air compressor machine opens machine control instruction and air compressor machine and shuts down control and refers to
It enables.
Further, it includes that air compressor machine has executed machine command status and air compressor machine execution that the air compressor machine, which executes instruction state,
Halt instruction state.
Further, if entire car controller can receive the message information of air compressor machine in the set time period, determine
Communication between air compressor machine and entire car controller is normal, otherwise determines the communication abnormality between air compressor machine and entire car controller.
The present invention also provides a kind of fault detection systems of electric compressor, including entire car controller, air compressor machine to control
Device and instrument warning device；The entire car controller communicates to connect the air compressor controller and controls the connection instrument report
Alarm device；The air compressor controller is for controlling connection air compressor machine；The entire car controller is for executing control program with reality
Existing following method:
After vehicle powers on, detected at least one of following: the enabled instruction of air compressor machine whether effectively, air compressor machine control
System instruction whether effectively, air compressor machine execute instruction state whether effectively and the communication between air compressor machine and entire car controller be
It is no normal；
If instruction ignore in above-mentioned any one executes instruction that state is invalid or communication is abnormal, air compressor machine is carried out
Abnormal alarm.
Further, the entire car controller is also used to execute instruction to realize following method:
Whether air compressor machine faults itself code is effectively detected, if air compressor machine faults itself code is effective, carries out pneumatics
Machine abnormal alarm.
Further, the air compressor machine control instruction includes that air compressor machine opens machine control instruction and air compressor machine and shuts down control and refers to
It enables.
Further, it includes that machine command status and air compressor machine execution are opened in air compressor machine execution that the air compressor machine, which executes instruction state,
Halt instruction state.
Further, if the entire car controller is used to receive the message letter of air compressor machine in the set time period
Breath, then determine that the communication between air compressor machine and entire car controller is normal, otherwise determines logical between air compressor machine and entire car controller
Letter is abnormal.
The beneficial effects of the present invention are:
It is powered in driving process in vehicle, carries out active detecting, detection by the various faults being likely to occur to air compressor machine
Range is wider, is capable of detecting when that air compressor machine various hidden danger that may be present, air compressor machine functional safety degree of protection are high；Compared under
Line detection, detection is in time and detection interval is shorter, can be realized detection and troubleshooting to the failure of air compressor system randomness,
Effectively prevent the problem of air compressor machine disabler seriously affects traffic safety.
Further, failure existing for air compressor machine itself is monitored, failure then and alarm, reminds work if it exists
Personnel's on-call maintenance.
Detailed description of the invention
Fig. 1 is the structure chart of the fault detection system of electric compressor；
Fig. 2 is the control flow chart of the fault detection method of electric compressor.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
The present invention will be described in further detail for example.
As shown in Figure 1, the fault detection system of electric compressor of the invention includes entire car controller VCU, air compressor machine control
Device processed and instrument warning device, wherein entire car controller VCU is communicated to connect by hardwire and air compressor controller, and the company of control
Connect instrument warning device；Air compressor controller control connection air compressor machine.
Above-mentioned air compressor controller is used to detect the working condition of air compressor machine, and the fault message of air compressor machine itself is sent
Entire car controller VCU is given, so that VCU makes breakdown judge decision.
Above-mentioned entire car controller VCU be used for according to receive ON fire power on signal state judgement start execute detection when
Between；Breakdown judge is carried out according to the air compressor machine working state signal and air compressor machine CAN message received；By rigid line to air compressor machine
Controller sends air compressor machine control instruction；Air compressor machine fault detection sequence code is executed, and according to the result of execution to instrument report
Alarm device sends warning message.
The fault message that above-mentioned instrument warning device is used to transmit according to entire car controller VCU, can be with to driver's alarm
It is alarmed by voice signal, light alarm can also be passed through.
As shown in Fig. 2, the fault detection system of above-mentioned electric compressor is when executing fault detection method, including following
Timing 1-8 is detected, the specific working principle is as follows:
1, electro-detection on ON fire: purpose is to ensure that vehicle carries out power-on self-test when preparing operation every time daily.Vehicle
Controller judges the stubborn key action of driver according to ON fire signal, when detecting that ON fire becomes 1 from 0 every time, i.e., each vehicle
When powering on, start to execute air compressor machine power-on self-test program.
2, air compressor machine enable signal detects: purpose is to ensure that the air compressor machine control strategy run in VCU is normally executed.
After upper ON fire, whether the enabled instruction of detection air compressor machine enable signal, that is, air compressor machine is effective, if air compressor machine enable signal is 0, says
Bright air compressor machine enable signal is invalid, then reports failure ERROR1；If air compressor machine enable signal is 1, illustrate air compressor machine enable signal
Effectively, next detection sequence is executed.
3, air compressor machine communication state detects: purpose is whether just to detect CAN communication between air compressor machine and entire car controller
Often.If entire car controller can normally receive the message information of air compressor machine within the set time, then it is assumed that air compressor machine communication is normal,
Next detection sequence is executed at this time；If detecting, VCU is not received by air compressor machine message in the set time period, judges pneumatics
Machine communication abnormality, this Times air compressor machine communication failure ERROR2.
4, air compressor machine error code detects: air compressor machine faults itself code is transferred to entire car controller VCU by CAN network, if
VCU receives effective fault code indications, at this time vehicle report failure ERROR3；Otherwise, next detection sequence is executed.
5, air compressor machine open machine instruction correctness detection: before full-vehicle control program setting brake gas bag pressure be A (assuming that according to
Design, when gas bag pressure is A, air compressor machine can start to inflate), the air compressor machine work order that VCU is issued then illustrates pneumatics if 1
Machine opens machine and instructs effectively (correct), executes next detection sequence；If the air compressor machine work order that VCU is issued is 0, pneumatics is judged
Machine opens machine instruction ignore (mistake), vehicle report failure ERROR4.
6, machine instruction correctness detection is opened in air compressor machine execution: it is A, VCU that gas bag pressure is braked before full-vehicle control program setting
Collected air compressor machine working condition then illustrates that air compressor machine correctly performs and opens machine instruction, is i.e. air compressor machine execution is opened machine and referred to if 1
Writ state is effective, then executes next detection sequence；If the collected air compressor machine working condition of VCU is 0, illustrate that air compressor machine does not have
Correct execute opens machine instruction, i.e. air compressor machine execution invalid, the vehicle report failure ERROR5 that opens machine command status.
7, air compressor machine halt instruction correctness detect: before full-vehicle control program setting brake gas bag pressure be B (assuming that according to
Design, when gas bag pressure is B, air compressor machine can stop inflating), the air compressor machine halt instruction that VCU is issued then illustrates pneumatics if 0
Machine halt instruction effectively (correct), executes next detection sequence；If the air compressor machine halt instruction that VCU is issued is 1, illustrate pneumatics
Machine halt instruction is invalid (mistake), vehicle report failure ERROR6.
8, air compressor machine executes the detection of halt instruction correctness: it is B, VCU that gas bag pressure is braked before full-vehicle control program setting
Collected air compressor machine working condition then illustrates that air compressor machine correctly performs halt instruction, i.e. air compressor machine executes to shut down and refer to if 0
Writ state is effective, executes next detection sequence；If the collected air compressor machine working condition of VCU is 1, illustrate air compressor machine without just
Halt instruction is really executed, i.e. air compressor machine execution halt instruction state is invalid, vehicle report failure ERROR7.
All detection sequences when detecting that ERROR1-ERROR7 is 0, should judge at air compressor machine and its control system
In safe work state；If it is detected that judging that air compressor machine and its control system are in non-security work shape there are any failure
State, entire car controller VCU issues an alarm signal to instrument warning device at this time, remind driver overhaul and again on
It could drive a vehicle after electric self-test safety.
Certainly, it as other embodiments, can also select according to actual needs to two in above-mentioned detection timing
Or it is multinomial be monitored, can not also be carried out according to the above-mentioned timing that provides between each detection, when detecting the presence of failure
When, then carry out fault alarm.
Air compressor machine fault detection method of the invention is mainly made of a series of active detecting sequences, these detection sequence energy
Realize respectively to air compressor machine control instruction (including opening machine and shutdown), air compressor machine execute instruction state (including opening machine and shutdown),
Internet state of air compressor machine and entire car controller VCU etc. influences the link that air compressor machine function is realized and carries out safety monitoring, VCU
By continual these sequences of execution, so that the entire control loop of air compressor machine can be monitored effectively, to ensure sky
Press trouble free service.
Claims (10)
1. a kind of fault detection method of electric compressor, which is characterized in that steps are as follows:
After vehicle powers on, detect at least one following: whether the enabled instruction of air compressor machine is effective, air compressor machine control refers to
Enable whether effectively, air compressor machine execute instruction state whether effectively and the communication between air compressor machine and entire car controller whether just
Often；
If instruction ignore in above-mentioned any one executes instruction that state is invalid or communication is abnormal, air compressor machine exception is carried out
Alarm.
2. the fault detection method of electric compressor according to claim 1, which is characterized in that further include to air compressor machine from
Whether body error code is effectively detected, if air compressor machine faults itself code is effective, carries out air compressor machine abnormal alarm.
3. the fault detection method of electric compressor according to claim 1 or 2, which is characterized in that the air compressor machine control
System instruction includes that air compressor machine opens machine control instruction and air compressor machine shutdown control instruction.
4. the fault detection method of electric compressor according to claim 1 or 2, which is characterized in that the air compressor machine is held
Row command status includes that air compressor machine has executed machine command status and air compressor machine execution halt instruction state.
5. the fault detection method of electric compressor according to claim 1 or 2, which is characterized in that if entire car controller
The message information that air compressor machine can be received in the set time period then determines communication between air compressor machine and entire car controller just
Often, otherwise determine the communication abnormality between air compressor machine and entire car controller.
6. a kind of fault detection system of electric compressor, which is characterized in that including entire car controller, air compressor controller and instrument
Statistical tables and reports alarm device；The entire car controller communicates to connect the air compressor controller and controls the connection instrument warning device；
The air compressor controller is for controlling connection air compressor machine；The entire car controller is for executing control program to realize such as lower section
Method:
After vehicle powers on, detect at least one following: whether the enabled instruction of air compressor machine is effective, air compressor machine control refers to
Enable whether effectively, air compressor machine execute instruction state whether effectively and the communication between air compressor machine and entire car controller whether just
Often；
If instruction ignore in above-mentioned any one executes instruction that state is invalid or communication is abnormal, air compressor machine exception is carried out
Alarm.
7. the fault detection system of electric compressor according to claim 6, which is characterized in that the entire car controller is also
For executing instruction to realize following method:
Whether air compressor machine faults itself code is effectively detected, if air compressor machine faults itself code is effective, it is different to carry out air compressor machine
Often alarm.
8. the fault detection system of electric compressor according to claim 6 or 7, which is characterized in that the air compressor machine control
System instruction includes that air compressor machine opens machine control instruction and air compressor machine shutdown control instruction.
9. the fault detection system of electric compressor according to claim 6 or 7, which is characterized in that the air compressor machine is held
Row command status includes that machine command status and air compressor machine execution halt instruction state are opened in air compressor machine execution.
10. the fault detection system of electric compressor according to claim 6 or 7, which is characterized in that the full-vehicle control
If device is used to receive the message information of air compressor machine in the set time period, determine between air compressor machine and entire car controller
Communication it is normal, otherwise determine the communication abnormality between air compressor machine and entire car controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710987408.6A CN109695564B (en) | 2017-10-20 | 2017-10-20 | Fault detection method and system for electric air compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710987408.6A CN109695564B (en) | 2017-10-20 | 2017-10-20 | Fault detection method and system for electric air compressor |
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| Publication Number | Publication Date |
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| CN109695564A true CN109695564A (en) | 2019-04-30 |
| CN109695564B CN109695564B (en) | 2020-09-01 |
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| CN201710987408.6A Active CN109695564B (en) | 2017-10-20 | 2017-10-20 | Fault detection method and system for electric air compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173420A (en) * | 2019-06-30 | 2019-08-27 | 潍柴动力股份有限公司 | The air pump fault detection method and relevant apparatus of electric vehicle |
| CN115111139A (en) * | 2022-07-28 | 2022-09-27 | 安徽江淮汽车集团股份有限公司 | Compressed air supply system for electric commercial vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916107A (en) * | 2010-08-11 | 2010-12-15 | 奇瑞汽车股份有限公司 | Control method and control device for fault diagnosis and treatment of electric automobile |
| CN102167001A (en) * | 2011-04-18 | 2011-08-31 | 北京理工华创电动车技术有限公司 | Controller for electric vehicle |
| CN103047125A (en) * | 2012-12-11 | 2013-04-17 | 潍柴动力股份有限公司 | Oil pump feeding fault detecting method and device of high-pressure plunger-type fuel pump |
| EP3190296A1 (en) * | 2014-09-02 | 2017-07-12 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Hydraulic pump malfunction diagnosing device |
| CN107120262A (en) * | 2017-05-11 | 2017-09-01 | 厦门金龙联合汽车工业有限公司 | A kind of electric compressor control strategy and method for diagnosing faults |
-
2017
- 2017-10-20 CN CN201710987408.6A patent/CN109695564B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916107A (en) * | 2010-08-11 | 2010-12-15 | 奇瑞汽车股份有限公司 | Control method and control device for fault diagnosis and treatment of electric automobile |
| CN102167001A (en) * | 2011-04-18 | 2011-08-31 | 北京理工华创电动车技术有限公司 | Controller for electric vehicle |
| CN103047125A (en) * | 2012-12-11 | 2013-04-17 | 潍柴动力股份有限公司 | Oil pump feeding fault detecting method and device of high-pressure plunger-type fuel pump |
| EP3190296A1 (en) * | 2014-09-02 | 2017-07-12 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Hydraulic pump malfunction diagnosing device |
| CN107120262A (en) * | 2017-05-11 | 2017-09-01 | 厦门金龙联合汽车工业有限公司 | A kind of electric compressor control strategy and method for diagnosing faults |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173420A (en) * | 2019-06-30 | 2019-08-27 | 潍柴动力股份有限公司 | The air pump fault detection method and relevant apparatus of electric vehicle |
| CN110173420B (en) * | 2019-06-30 | 2020-11-20 | 潍柴动力股份有限公司 | Air pump fault detection method of electric vehicle and related device |
| CN115111139A (en) * | 2022-07-28 | 2022-09-27 | 安徽江淮汽车集团股份有限公司 | Compressed air supply system for electric commercial vehicle |
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| CN109695564B (en) | 2020-09-01 |
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Address after: 450061 Yutong Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co., Ltd Address before: 450016 shibalihe Yutong Industrial Park, Zhengzhou City, Henan Province Patentee before: Zhengzhou Yutong Bus Co., Ltd |