CN106772012A - A kind of relay fault diagnosis circuit and method - Google Patents
A kind of relay fault diagnosis circuit and method Download PDFInfo
- Publication number
- CN106772012A CN106772012A CN201611236540.5A CN201611236540A CN106772012A CN 106772012 A CN106772012 A CN 106772012A CN 201611236540 A CN201611236540 A CN 201611236540A CN 106772012 A CN106772012 A CN 106772012A
- Authority
- CN
- China
- Prior art keywords
- voltage
- relay
- detection
- branch
- branch road
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
Abstract
The invention discloses a kind of relay fault diagnosis circuit and method, comprise the following steps：S01：After electricity in circuit low pressure, BMS control units (200) control detection branch select unit (100) carry out corresponding voltage detecting branch road gating operation；S02：The voltage detecting branch road of current gating is detected to the voltage at its two ends；S03：The voltage that voltage detecting branch road is detected is compared, the adhesion state of each relay is judged according to comparative result；S04：If each relay is without adhesion in step S03, operational control is carried out to corresponding relay, and gates corresponding voltage detecting branch road to carry out voltage detecting, the failure state of corresponding relay is judged according to the voltage for being detected.By setting detection branch detection unit any switching laws are carried out between multichannel potential circuit to be detected, realize the detectable plurality of voltages value of voltage detection unit all the way, greatly save the element cost of voltage detecting, simplify BMS hardware circuits, taken up room beneficial to BMS is reduced, and be that BMS performances are more stablized.
Description
Technical field
The present invention relates to relay diagnostic field, more particularly to a kind of relay fault diagnosis circuit and method.
Background technology
With the fast development of electric automobile, the electrokinetic cell performance requirement to electric automobile is more and more stricter, so that high
The fault diagnosis of potential relay is more and more important.Diagnose what high-voltage relay was commonly used with reference to Fig. 1, in the BMS of current electric automobile
Method needs to detect multiple magnitudes of voltage that the detection of each magnitude of voltage corresponds to voltage detecting circuit independent all the way respectively, such as interior
Stagnation pressure detects circuit, outer stagnation pressure detection circuit, the voltage detecting circuit between the total anode of electrokinetic cell and negative pole end, negative pole positive pole
Voltage detecting circuit between end and the total negative terminal of electrokinetic cell etc..In the prior art.Turn including AD per voltage detecting circuit all the way
Change unit, high-pressure and low-pressure isolated location, divider resistance unit etc..Therefore, the BMS of prior art is needing to detect plurality of voltages value
In the case of, it is necessary to using the voltage detecting circuit of multichannel, cause that BMS circuit structures are complicated, production cost is high, take up room
Greatly, and complexity circuit structure influence BMS overall performances.Meanwhile, plurality of voltages detection circuit needs to take control centre in BMS
Multiple AD mouthfuls, it is excessive to take the very limited amount of AD mouthfuls of resource of control centre in BMS.
Additionally, the failure of high-voltage relay include adhesion and failure (failure as cannot closure state, it is general in industry
Saying) two states.But existing high-voltage relay diagnostic method is generally only capable of being diagnosed to be high-voltage relay in adhesion state,
Fail Precise Diagnosis and whether go out high-voltage relay in failure state, diagnostic result is not comprehensive, and then influences BMS performances.
The content of the invention
The purpose of the present invention is to overcome weak point of the prior art, there is provided a kind of relay method for diagnosing faults.
The purpose of the present invention is achieved through the following technical solutions：
A kind of relay fault diagnosis circuit, including：It is total positive relay Kp, preliminary filling resistance R, preliminary filling relay Kpre, total
Negative relay Kn, detection branch select unit, BMS control units and voltage detection unit, total positive relay Kp are serially connected in
The total anode of battery bag, the always negative relay Kn is serially connected in the total negative terminal of battery bag, total positive relay Kp and it is total bear relay Kn it
Between series load；
The preliminary filling resistance and the series arm that the preliminary filling relay Kpre is connected in series to form be parallel to it is described it is total just
Relay Kp；
The first input end of the detection branch select unit connects total anode of the battery bag, the connection of the second input
The positive terminal of the load, the 3rd input connects total negative terminal of the battery bag, and the 4th input connects the negative of the load
Extremely, the 5th input connects the connecting node of the preliminary filling resistance R and preliminary filling relay Kpre, the detection branch choosing
The output end for selecting unit is connected with the voltage detection unit；
The detection branch select unit is connected with the BMS control units signal.
Wherein in one embodiment, the first input end, the branch road select unit (100), the voltage detecting
Unit and the 3rd input constitute first voltage detection branch；3rd input, branch road select unit, voltage detecting
Unit and the 5th input constitute second voltage detection branch, the first input end, the branch road select unit, described
Voltage detection unit and the 4th input constitute tertiary voltage detection branch, second input, branch road selection
Unit, the voltage detection unit and the 3rd input constitute the 4th voltage detecting branch road.
Based on the method for diagnosing faults of relay fault diagnosis circuit, comprise the following steps：
S01：After electricity in circuit low pressure, BMS control units control detection branch select unit carries out corresponding voltage inspection
Survey branch road gating operation；
S02：The voltage detecting branch road of current gating is detected to the voltage at its two ends；
S03：The voltage that voltage detecting branch road is detected is compared, the adhesion shape of each relay is judged according to comparative result
State；
S04：If each relay carries out operational control, and gate phase without adhesion to corresponding relay in step S03
The voltage detecting branch road answered carries out voltage detecting, and the failure state of corresponding relay is judged according to the voltage for being detected.
Wherein in one embodiment, the step S01 is specially：
After electricity in circuit low pressure, the control detection branch select unit of BMS control units gates first voltage inspection in turn
Survey branch road, second voltage detection branch, tertiary voltage detection branch, the 4th voltage detecting branch road.
Wherein in one embodiment, the step S02 is specially：
During gating first voltage detection branch, first voltage detection branch to the voltage at its two ends detected
Voltage V1；During gating second voltage detection branch, second voltage detection branch to the voltage at its two ends detected
Voltage V2；During gating tertiary voltage detection branch, tertiary voltage detection branch to the voltage at its two ends detected
Voltage V3；When gating the 4th voltage detecting branch road, the 4th voltage detecting branch road to the voltage at its two ends detected
Voltage V4.
Wherein in one embodiment, the step S03 specifically includes following steps：
If the detection voltage V3 of tertiary voltage detection branch is equal to the detection voltage V1 of first voltage detection branch, total negative
Relay Kn adhesions；
If the detection voltage V4 of the 4th voltage detecting branch road is equal to the detection voltage V1 of first voltage detection branch, always just
Relay Kp adhesions；
If the detection voltage V4 of the 4th voltage detecting branch road rises according to preliminary filling curve, always negative relay Kn and preliminary filling after
Electrical equipment Kpre adhesions simultaneously；
If the detection voltage V4 of the 4th voltage detecting branch road is equal to the detection voltage V2 of second voltage detection branch, preliminary filling
Relay Kpre and total positive pre- adhesions simultaneously of relay Kp are filled in relay Kpre adhesions.
Wherein in one embodiment, operational control is carried out in the step S04 to corresponding relay, and gate corresponding
Voltage detecting branch road carry out voltage detecting, include the step of judge the failure state of corresponding relay according to the voltage for being detected
The failure of preliminary filling relay Kpre judges step S041：
Closure preliminary filling relay Kpre, gates first voltage detection branch and the 4th voltage detecting branch road successively, obtains inspection
Survey voltage V1 and detection voltage V4；
If detection voltage V4 is equal to detection voltage V1, preliminary filling relay Kpre normally closeds；
If detection voltage V4 is equal to zero, preliminary filling relay Kpre failures；
If detection voltage V4 glues according to the rising of preliminary filling curve, preliminary filling relay Kpre normally closeds and total negative relay Kn
Even.
Wherein in one embodiment, if the equal fault-free of diagnostic result in the step S041, the step S04 is also wrapped
The failure for including total negative relay Kn judges step S042：
Closure always bears relay kn, and first voltage detection branch and tertiary voltage detection branch are gated successively, obtains detection
Voltage V1 and detection voltage V3；
If detection voltage V3 is equal to detection voltage V1, relay Kn normally closeds are always born；
If detection voltage V3 is equal to zero, always negative relay Kn failures.
Wherein in one embodiment, if the equal fault-free of diagnostic result in the step S042, the step S04 is also wrapped
The failure for including total positive relay Kp judges step S043：
Always negative relay kn is first closed, preliminary filling relay Kpre is closed again；
Total positive relay kp is first closed after the completion of preliminary filling, preliminary filling relay kpre is then turned off；
First voltage detection branch and the 4th voltage detecting branch road are gated successively, obtain detection voltage V1 and detection voltage
V4；
If detection voltage V4 is equal to detection voltage V1, total positive relay Kp normally closeds；
If detection voltage V4 is less than detection voltage V1, and detection voltage V4 declines, then total positive relay Kp failures.
This technical scheme has following beneficial effect compared to prior art：
1. any switching laws are carried out between multichannel potential circuit to be detected by setting detection branch detection unit, realize one
The detectable plurality of voltages value of road voltage detection unit, greatlys save the element cost of voltage detecting, simplifies BMS hardware circuits, profit
Taken up room in BMS is reduced, and be that BMS performances are more stablized.
2. the technical program can carry out plurality of voltages detection on the premise of uncomplicated circuit, carry out high-voltage relay
During the diagnosis of device, energy Accurate Diagnosis have two kinds of failure situations of adhesion and failure of high-voltage relay.
3. diagnostic process method is simple, and diagnostic result is comprehensive, and high efficient and reliable.
Brief description of the drawings
Fig. 1 is the relay diagnostic circuit schematic diagram of prior art；
Fig. 2 is the relay fault diagnosis circuit schematic diagram in the present embodiment；
Fig. 3 is the circuit voltage detection branch schematic diagram of the relay fault diagnosis in the present embodiment；
Fig. 4 is the relay method for diagnosing faults flow chart in the present embodiment.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give better embodiment of the invention.But, the present invention can be realized in many different forms, however it is not limited to herein
Described implementation method.On the contrary, the purpose for providing these implementation methods is to make to understand more the disclosure
Plus it is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
For illustrative purposes only, it is unique implementation method to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article with belong to technical field of the invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the implementation method of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all of combination of related Listed Items.
As schemed, 2 show relay fault diagnosis circuit, and reference picture 3 is please combined in the lump, including：It is total positive relay Kp, pre-
Charge resistance R, always preliminary filling relay Kpre, negative relay Kn, detection branch select unit 100, BMS control units 200 and voltage
Detection unit 300, total positive relay Kp is serially connected in the total anode of battery bag, and it is total that the always negative relay Kn is serially connected in battery bag
Negative terminal, series load between total positive relay Kp and always negative relay Kn；
The preliminary filling resistance and the series arm that the preliminary filling relay Kpre is connected in series to form be parallel to it is described it is total just
Relay Kp；
The first input end of the detection branch select unit 100 connects total anode of the battery bag, the second input
The positive terminal of the load is connected, the 3rd input connects total negative terminal of the battery bag, and the 4th input connects the load
Negative pole end, the 5th input connects the connecting node of the preliminary filling resistance R and preliminary filling relay Kpre, the detection branch
The output end of road select unit 100 is connected with the voltage detection unit 300；
The detection branch select unit 100 is connected with the signal of BMS control units 200.
Further, the first input end, the branch road select unit 100, the voltage detection unit 300 and described
3rd input constitutes first voltage detection branch；3rd input, branch road select unit 100, voltage detection unit 300
It is the first input end, the branch road select unit 100, described and the 5th input constitutes second voltage detection branch
Voltage detection unit 300 and the 4th input constitute tertiary voltage detection branch, second input, branch road choosing
Select unit 100, the voltage detection unit 300 and the 3rd input and constitute the 4th voltage detecting branch road.
Based on the method for diagnosing faults of relay fault diagnosis circuit, Fig. 4 is refer to, comprised the following steps：
S01：After electricity in circuit low pressure, the control detection branch of BMS control units 200 select unit 100 carries out corresponding
Voltage detecting branch road gating operation；
S02：The voltage detecting branch road of current gating is detected to the voltage at its two ends；
S03：The voltage that voltage detecting branch road is detected is compared, the adhesion shape of each relay is judged according to comparative result
State；
S04：If each relay carries out operational control, and gate phase without adhesion to corresponding relay in step S03
The voltage detecting branch road answered carries out voltage detecting, and the failure state of corresponding relay is judged according to the voltage for being detected.
Further, the step S01 is specially：
After electricity in circuit low pressure, gating first is electric in turn for the control detection branch of BMS control units 200 select unit 100
Pressure detection branch, second voltage detection branch, tertiary voltage detection branch, the 4th voltage detecting branch road.
Further, the step S02 is specially：
During gating first voltage detection branch, first voltage detection branch to the voltage at its two ends detected
Voltage V1；During gating second voltage detection branch, second voltage detection branch to the voltage at its two ends detected
Voltage V2；During gating tertiary voltage detection branch, tertiary voltage detection branch to the voltage at its two ends detected
Voltage V3；When gating the 4th voltage detecting branch road, the 4th voltage detecting branch road to the voltage at its two ends detected
Voltage V4.
Further, the step S03 specifically includes following steps：
If the detection voltage V3 of tertiary voltage detection branch is equal to the detection voltage V1 of first voltage detection branch, total negative
Relay Kn adhesions；
If the detection voltage V4 of the 4th voltage detecting branch road is equal to the detection voltage V1 of first voltage detection branch, always just
Relay Kp adhesions；
If the detection voltage V4 of the 4th voltage detecting branch road rises according to preliminary filling curve, always negative relay Kn and preliminary filling after
Electrical equipment Kpre adhesions simultaneously；
If the detection voltage V4 of the 4th voltage detecting branch road is equal to the detection voltage V2 of second voltage detection branch, preliminary filling
Relay Kpre and total positive pre- adhesions simultaneously of relay Kp are filled in relay Kpre adhesions.
Further, operational control is carried out to corresponding relay in the step S04, and gates corresponding voltage detecting
Branch road carries out voltage detecting, and preliminary filling relay is included the step of judge the failure state of corresponding relay according to the voltage for being detected
The failure of Kpre judges step S041：
Closure preliminary filling relay Kpre, gates first voltage detection branch and the 4th voltage detecting branch road successively, obtains inspection
Survey voltage V1 and detection voltage V4；
If detection voltage V4 is equal to detection voltage V1, preliminary filling relay Kpre normally closeds；
If detection voltage V4 is equal to zero, preliminary filling relay Kpre failures；
If detection voltage V4 glues according to the rising of preliminary filling curve, preliminary filling relay Kpre normally closeds and total negative relay Kn
Even.
Further, if the equal fault-free of diagnostic result in the step S041, the step S04 also includes always negative relay
The failure of device Kn judges step S042：
Closure always bears relay kn, and first voltage detection branch and tertiary voltage detection branch are gated successively, obtains detection
Voltage V1 and detection voltage V3；
If detection voltage V3 is equal to detection voltage V1, relay Kn normally closeds are always born；
If detection voltage V3 is equal to zero, always negative relay Kn failures.
Further, if the equal fault-free of diagnostic result in the step S042, the step S04 also includes total positive relay
The failure of device Kp judges step S043：
Always negative relay kn is first closed, preliminary filling relay Kpre is closed again；
Total positive relay kp is first closed after the completion of preliminary filling, preliminary filling relay kpre is then turned off；
First voltage detection branch and the 4th voltage detecting branch road are gated successively, obtain detection voltage V1 and detection voltage
V4；
If detection voltage V4 is equal to detection voltage V1, total positive relay Kp normally closeds；
If detection voltage V4 is less than detection voltage V1, and detection voltage V4 declines, then total positive relay Kp failures.
It should be noted that relay Kn and preliminary filling relay Kpre adhesions simultaneously ought be always born, battery bag, always negative relay
Kn, preliminary filling relay Kpre and load form loop, due to there is electric capacity, the detection voltage of the 4th voltage detecting branch road in load
V4 rises to those skilled in the art's scope to understand according to preliminary filling curve, and no longer preliminary filling curve is determined in the description
Justice is illustrated, and similarly, the detection voltage decline of the 4th voltage detecting branch road is also no longer explained.
Also, it should be noted that shown BMS control units 200 are connected with voltage detection unit signal.
Also, it should be noted that described relay failure state cannot normally closed state for relay.
The above implementation method only expresses several embodiments of the invention, and its description is more specific and detailed, but
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for the ordinary skill people of this area
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of relay fault diagnosis circuit, it is characterised in that：Including：Total positive relay Kp, preliminary filling resistance R, preliminary filling relay
Device Kpre, always negative relay Kn, detection branch select unit (100), BMS control units (200) and voltage detection unit
(300), total positive relay Kp is serially connected in the total anode of battery bag, and the always negative relay Kn is serially connected in the total negative terminal of battery bag,
Series load between total positive relay Kp and always negative relay Kn；
The preliminary filling resistance is parallel to total positive relay with the series arm that the preliminary filling relay Kpre is connected in series to form
Device Kp；
The first input end of the detection branch select unit (100) connects total anode of the battery bag, and the second input connects
The positive terminal of the load is connect, the 3rd input connects total negative terminal of the battery bag, and the 4th input connects the load
Negative pole end, the 5th input connects the connecting node of the preliminary filling resistance R and preliminary filling relay Kpre, the detection branch
The output end of select unit (100) is connected with the voltage detection unit (300)；
The detection branch select unit (100) is connected with BMS control units (200) signal.
2. relay fault diagnosis circuit according to claim 1, it is characterised in that the first input end, the branch
Road select unit (100), the voltage detection unit (300) and the 3rd input constitute first voltage detection branch；Institute
State the 3rd input, branch road select unit (100), voltage detection unit (300) and the 5th input and constitute second voltage
Detection branch, the first input end, the branch road select unit (100), the voltage detection unit (300) and the described 4th
Input constitutes tertiary voltage detection branch, second input, the branch road select unit (100), the voltage detecting
Unit (300) and the 3rd input constitute the 4th voltage detecting branch road.
3. the method for diagnosing faults of the relay fault diagnosis circuit being based on described in claim 2, it is characterised in that including following
Step：
S01：After electricity in circuit low pressure, BMS control units (200) control detection branch select unit (100) are carried out accordingly
Voltage detecting branch road gating operation；
S02：The voltage detecting branch road of current gating is detected to the voltage at its two ends；
S03：The voltage that voltage detecting branch road is detected is compared, the adhesion state of each relay is judged according to comparative result；
S04：If each relay is without adhesion in step S03, operational control is carried out to corresponding relay, and gate corresponding
Voltage detecting branch road carries out voltage detecting, and the failure state of corresponding relay is judged according to the voltage for being detected.
4. relay method for diagnosing faults according to claim 3, it is characterised in that the step S01 is specially：
After electricity in circuit low pressure, control detection branch select unit (100) of BMS control units (200) gates first in turn
Voltage detecting branch road, second voltage detection branch, tertiary voltage detection branch, the 4th voltage detecting branch road.
5. relay method for diagnosing faults according to claim 4, it is characterised in that the step S02 is specially：
During gating first voltage detection branch, first voltage detection branch to the voltage at its two ends detect and obtains detection voltage
V1；During gating second voltage detection branch, second voltage detection branch to the voltage at its two ends detect and obtains detection voltage
V2；During gating tertiary voltage detection branch, tertiary voltage detection branch to the voltage at its two ends detect and obtains detection voltage
V3；When gating the 4th voltage detecting branch road, the 4th voltage detecting branch road to the voltage at its two ends detect and obtains detection voltage
V4。
6. relay method for diagnosing faults according to claim 5, it is characterised in that the step S03 specifically include with
Lower step：
If the detection voltage V3 of tertiary voltage detection branch is equal to the detection voltage V1 of first voltage detection branch, relay is always born
Device Kn adhesions；
If the detection voltage V4 of the 4th voltage detecting branch road is equal to the detection voltage V1 of first voltage detection branch, total positive relay
Device Kp adhesions；
If the detection voltage V4 of the 4th voltage detecting branch road rises according to preliminary filling curve, relay Kn and preliminary filling relay are always born
Kpre adhesions simultaneously；
If the detection voltage V4 of the 4th voltage detecting branch road is equal to the detection voltage V2 of second voltage detection branch, preliminary filling relay
Relay Kpre and total positive pre- adhesions simultaneously of relay Kp are filled in device Kpre adhesions.
7. relay method for diagnosing faults according to claim 6, it is characterised in that to corresponding in the step S04
Relay carries out operational control, and gates corresponding voltage detecting branch road and carry out voltage detecting, is judged according to the voltage for being detected
Failure of the step of failure state of corresponding relay including preliminary filling relay Kpre judges step S041：
Closure preliminary filling relay Kpre, gates first voltage detection branch and the 4th voltage detecting branch road successively, obtains detection electricity
Pressure V1 and detection voltage V4；
If detection voltage V4 is equal to detection voltage V1, preliminary filling relay Kpre normally closeds；
If detection voltage V4 is equal to zero, preliminary filling relay Kpre failures；
If detection voltage V4 rises according to preliminary filling curve, preliminary filling relay Kpre normally closeds and always negative relay Kn adhesions.
8. relay method for diagnosing faults according to claim 7, it is characterised in that if diagnosing knot in the step S041
Fruit fault-free, then failures of the step S04 also including total negative relay Kn judges step S042：
Closure always bears relay kn, and first voltage detection branch and tertiary voltage detection branch are gated successively, obtains detection voltage
V1 and detection voltage V3；
If detection voltage V3 is equal to detection voltage V1, relay Kn normally closeds are always born；
If detection voltage V3 is equal to zero, always negative relay Kn failures.
9. relay method for diagnosing faults according to claim 8, it is characterised in that if diagnosing knot in the step S042
Fruit fault-free, then failures of the step S04 also including total positive relay Kp judges step S043：
Always negative relay kn is first closed, preliminary filling relay Kpre is closed again；
Total positive relay kp is first closed after the completion of preliminary filling, preliminary filling relay kpre is then turned off；
First voltage detection branch and the 4th voltage detecting branch road are gated successively, obtain detection voltage V1 and detection voltage V4；
If detection voltage V4 is equal to detection voltage V1, total positive relay Kp normally closeds；
If detection voltage V4 is less than detection voltage V1, and detection voltage V4 declines, then total positive relay Kp failures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236540.5A CN106772012B (en) | 2016-12-28 | 2016-12-28 | Relay fault diagnosis circuit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236540.5A CN106772012B (en) | 2016-12-28 | 2016-12-28 | Relay fault diagnosis circuit and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106772012A true CN106772012A (en) | 2017-05-31 |
| CN106772012B CN106772012B (en) | 2020-02-14 |
Family
ID=58925291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611236540.5A Active CN106772012B (en) | 2016-12-28 | 2016-12-28 | Relay fault diagnosis circuit and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106772012B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482591A (en) * | 2017-08-01 | 2017-12-15 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of on-board high-voltage relay safety protecting method |
| CN107544021A (en) * | 2017-07-17 | 2018-01-05 | 广东美的厨房电器制造有限公司 | Detection method, system and micro-wave oven, the computer equipment of relay adhesion situation |
| CN107561436A (en) * | 2017-09-26 | 2018-01-09 | 厦门金龙汽车新能源科技有限公司 | A kind of relay adhesion detection method |
| CN107831430A (en) * | 2017-08-30 | 2018-03-23 | 欣旺达电动汽车电池有限公司 | A kind of high voltage connector electric shock abnormal detection circuit and detection method |
| CN108051733A (en) * | 2017-10-31 | 2018-05-18 | 惠州市蓝微新源技术有限公司 | A kind of the relay adhesion detecting system and method for more battery clusters |
| CN108116267A (en) * | 2018-01-29 | 2018-06-05 | 北斗航天汽车（北京）有限公司 | Electric vehicle pre-charging presses detection device and method |
| CN109116230A (en) * | 2018-10-26 | 2019-01-01 | 常州索维尔电子科技有限公司 | High-voltage relay state on_line monitoring device and method |
| CN109239588A (en) * | 2017-07-11 | 2019-01-18 | 宁德时代新能源科技股份有限公司 | Fault detection circuit and method |
| CN109507476A (en) * | 2018-12-25 | 2019-03-22 | 中国重汽集团济南动力有限公司 | A kind of high voltage connector front and back end voltage detecting system |
| CN109839587A (en) * | 2017-11-24 | 2019-06-04 | 中信国安盟固利动力科技有限公司 | A kind of fault detection of battery system and positioning device and method |
| CN110031755A (en) * | 2019-04-30 | 2019-07-19 | 贵州振华群英电器有限公司（国营第八九一厂） | A kind of portable contacts of contactor service life monitor |
| CN110286317A (en) * | 2019-04-29 | 2019-09-27 | 惠州市亿能电子有限公司 | A kind of diagnostic circuit and method of battery system |
| CN110456265A (en) * | 2019-08-16 | 2019-11-15 | 武汉合康智能电气有限公司 | The detection method of relay in a kind of charging pile |
| CN111152659A (en) * | 2019-12-25 | 2020-05-15 | 浙江合众新能源汽车有限公司 | Battery pack high-voltage topological structure and relay adhesion detection method based on structure |
| CN112034333A (en) * | 2020-07-28 | 2020-12-04 | 北汽福田汽车股份有限公司 | High-voltage relay diagnosis method and device |
| CN113721138A (en) * | 2020-05-25 | 2021-11-30 | 精工爱普生株式会社 | Relay fault detection circuit and robot |
| CN109116230B (en) * | 2018-10-26 | 2024-05-03 | 常州是为电子有限公司 | High-voltage relay state on-line monitoring device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130093427A1 (en) * | 2011-10-17 | 2013-04-18 | Cobasys, Llc | Welded contactor checking systems and methods |
| KR20130039817A (en) * | 2011-10-13 | 2013-04-23 | 에스케이이노베이션 주식회사 | Circuit for monitoring relay |
| CN104391241A (en) * | 2014-10-13 | 2015-03-04 | 惠州市亿能电子有限公司 | High-voltage relay state detection circuit of power battery and method thereof |
| CN104597396A (en) * | 2014-12-11 | 2015-05-06 | 北京新能源汽车股份有限公司 | Method for performing high-voltage electrifying detection on electric vehicle |
| CN204556787U (en) * | 2015-03-13 | 2015-08-12 | 北汽福田汽车股份有限公司 | A kind of relay status monitoring device and there is its battery management system |
| CN105137336A (en) * | 2015-07-29 | 2015-12-09 | 南通大学 | Diagnostic circuit and diagnostic method for detecting electric vehicle high-voltage relay fault |
| CN105196886A (en) * | 2015-09-16 | 2015-12-30 | 北京新能源汽车股份有限公司 | Battery system of electric car and state diagnosis method for high-voltage relays in battery system |
| CN105548892A (en) * | 2015-12-02 | 2016-05-04 | 北京新能源汽车股份有限公司 | System, method and device of fault detection of battery system and electric vehicle |
-
2016
- 2016-12-28 CN CN201611236540.5A patent/CN106772012B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130039817A (en) * | 2011-10-13 | 2013-04-23 | 에스케이이노베이션 주식회사 | Circuit for monitoring relay |
| US20130093427A1 (en) * | 2011-10-17 | 2013-04-18 | Cobasys, Llc | Welded contactor checking systems and methods |
| CN104391241A (en) * | 2014-10-13 | 2015-03-04 | 惠州市亿能电子有限公司 | High-voltage relay state detection circuit of power battery and method thereof |
| CN104597396A (en) * | 2014-12-11 | 2015-05-06 | 北京新能源汽车股份有限公司 | Method for performing high-voltage electrifying detection on electric vehicle |
| CN204556787U (en) * | 2015-03-13 | 2015-08-12 | 北汽福田汽车股份有限公司 | A kind of relay status monitoring device and there is its battery management system |
| CN105137336A (en) * | 2015-07-29 | 2015-12-09 | 南通大学 | Diagnostic circuit and diagnostic method for detecting electric vehicle high-voltage relay fault |
| CN105196886A (en) * | 2015-09-16 | 2015-12-30 | 北京新能源汽车股份有限公司 | Battery system of electric car and state diagnosis method for high-voltage relays in battery system |
| CN105548892A (en) * | 2015-12-02 | 2016-05-04 | 北京新能源汽车股份有限公司 | System, method and device of fault detection of battery system and electric vehicle |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239588A (en) * | 2017-07-11 | 2019-01-18 | 宁德时代新能源科技股份有限公司 | Fault detection circuit and method |
| CN107544021A (en) * | 2017-07-17 | 2018-01-05 | 广东美的厨房电器制造有限公司 | Detection method, system and micro-wave oven, the computer equipment of relay adhesion situation |
| CN107482591A (en) * | 2017-08-01 | 2017-12-15 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of on-board high-voltage relay safety protecting method |
| CN107831430A (en) * | 2017-08-30 | 2018-03-23 | 欣旺达电动汽车电池有限公司 | A kind of high voltage connector electric shock abnormal detection circuit and detection method |
| CN107561436A (en) * | 2017-09-26 | 2018-01-09 | 厦门金龙汽车新能源科技有限公司 | A kind of relay adhesion detection method |
| CN108051733A (en) * | 2017-10-31 | 2018-05-18 | 惠州市蓝微新源技术有限公司 | A kind of the relay adhesion detecting system and method for more battery clusters |
| CN109839587A (en) * | 2017-11-24 | 2019-06-04 | 中信国安盟固利动力科技有限公司 | A kind of fault detection of battery system and positioning device and method |
| CN109839587B (en) * | 2017-11-24 | 2023-11-07 | 中信国安盟固利动力科技有限公司 | Fault detection and positioning device and method for battery system |
| CN108116267A (en) * | 2018-01-29 | 2018-06-05 | 北斗航天汽车（北京）有限公司 | Electric vehicle pre-charging presses detection device and method |
| CN109116230A (en) * | 2018-10-26 | 2019-01-01 | 常州索维尔电子科技有限公司 | High-voltage relay state on_line monitoring device and method |
| CN109116230B (en) * | 2018-10-26 | 2024-05-03 | 常州是为电子有限公司 | High-voltage relay state on-line monitoring device and method |
| CN109507476A (en) * | 2018-12-25 | 2019-03-22 | 中国重汽集团济南动力有限公司 | A kind of high voltage connector front and back end voltage detecting system |
| CN110286317B (en) * | 2019-04-29 | 2021-12-24 | 惠州市亿能电子有限公司 | Diagnostic circuit and method of battery system |
| CN110286317A (en) * | 2019-04-29 | 2019-09-27 | 惠州市亿能电子有限公司 | A kind of diagnostic circuit and method of battery system |
| CN110031755A (en) * | 2019-04-30 | 2019-07-19 | 贵州振华群英电器有限公司（国营第八九一厂） | A kind of portable contacts of contactor service life monitor |
| CN110031755B (en) * | 2019-04-30 | 2021-02-02 | 贵州振华群英电器有限公司（国营第八九一厂） | Portable contactor contact life monitor |
| CN110456265A (en) * | 2019-08-16 | 2019-11-15 | 武汉合康智能电气有限公司 | The detection method of relay in a kind of charging pile |
| CN111152659B (en) * | 2019-12-25 | 2021-09-10 | 浙江合众新能源汽车有限公司 | Battery pack high-voltage topological structure and relay adhesion detection method based on structure |
| CN111152659A (en) * | 2019-12-25 | 2020-05-15 | 浙江合众新能源汽车有限公司 | Battery pack high-voltage topological structure and relay adhesion detection method based on structure |
| CN113721138A (en) * | 2020-05-25 | 2021-11-30 | 精工爱普生株式会社 | Relay fault detection circuit and robot |
| CN112034333A (en) * | 2020-07-28 | 2020-12-04 | 北汽福田汽车股份有限公司 | High-voltage relay diagnosis method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106772012B (en) | 2020-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106772012A (en) | A kind of relay fault diagnosis circuit and method | |
| US11892518B2 (en) | Method of operating battery management systems, corresponding device and vehicle | |
| US9024769B2 (en) | Isolation resistance measuring apparatus having fault self-diagnosing function and fault self-diagnosing method using the same | |
| CN104391241A (en) | High-voltage relay state detection circuit of power battery and method thereof | |
| US8797043B2 (en) | System and method for detection of open connections between an integrated circuit and a multi-cell battery pack | |
| KR101716886B1 (en) | Apparatus for Diagnosing Electrical Contactor Capable of Accurately Detecting Diagnosing Voltage | |
| US20120139553A1 (en) | Electrochemical cell monitoring and balancing circuit with self-diagnostic feature | |
| CN103291429B (en) | Method for diagnosing electrical contact connection of an exhaust gas sensor | |
| EP2720056A1 (en) | Insulation resistance measurement device having failure self-diagnosis function, and self-diagnosis method using same | |
| CN102928727A (en) | Detecting an open wire between a battery cell and an external circuit | |
| CN107255782B (en) | A kind of high-voltage interlocking detection circuit and interlocking signal detection method | |
| CN106772082B (en) | Voltage acquisition line disconnection detection method for single battery | |
| US20220219544A1 (en) | Method of operating battery management systems, corresponding device and vehicle | |
| CN106324507A (en) | Performance testing method and system of power battery | |
| CN112034333B (en) | High-voltage relay diagnosis method and device | |
| DE102014223274A1 (en) | Device and method for monitoring a switch of a battery and battery module, battery, battery system, vehicle, computer program and computer program product | |
| CN203616422U (en) | Input signal state detecting device and electric automobile provided with same | |
| US11370321B2 (en) | Method of operating battery management systems, corresponding device and vehicle | |
| CN114217216A (en) | Relay detection circuit and detection method and system thereof | |
| CN108263239B (en) | Passive equalization circuit, fault diagnosis method and automobile | |
| CN202906447U (en) | Inverter protection circuit | |
| CN207717864U (en) | Storage battery insulating resistance detecting circuit | |
| CN207215978U (en) | Digital switch detects circuit | |
| CN110824374A (en) | Low-cost high-voltage system total pressure detection circuit | |
| CN217954706U (en) | Detection circuit of super capacitor charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |