CN112526329A - Relay adhesion diagnosis method and battery management system - Google Patents
Relay adhesion diagnosis method and battery management system Download PDFInfo
- Publication number
- CN112526329A CN112526329A CN201910883456.XA CN201910883456A CN112526329A CN 112526329 A CN112526329 A CN 112526329A CN 201910883456 A CN201910883456 A CN 201910883456A CN 112526329 A CN112526329 A CN 112526329A
- Authority
- CN
- China
- Prior art keywords
- relay
- adhesion
- automobile
- state
- fault
- 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.)
- Pending
Links
Images
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a relay adhesion diagnosis method and a battery management system, wherein the method comprises the following steps: when the running state of the automobile is switched from starting to flameout, after a preset time, judging whether the relay has an adhesion fault according to the voltage state of the relay; if the adhesion fault occurs, storing mark information for indicating the adhesion fault of the relay into a memory; when the running state is switched from flameout to starting, judging whether mark information exists in the memory; if the mark information exists, judging whether the relay has the adhesion fault; and if the relay has the adhesion fault, sending an adhesion fault signal to the vehicle control unit. According to the scheme, the relay is subjected to adhesion diagnosis at preset time intervals after the automobile is flamed out, and the DC-DC module is ensured to be completely discharged. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the diagnosis accuracy is ensured, and the driving safety and the driving experience are improved.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a relay adhesion diagnosis method and a battery management system.
Background
With the popularization of automobiles and the development of scientific technology, the electrification degree of automobiles is higher and higher. In the process of using the automobile, the relay of the automobile needs to be subjected to adhesion diagnosis.
The current strategy for performing adhesion diagnosis on an automobile relay is as follows: after the current automobile is shut down, a Battery Management System (BMS) carries out relay adhesion diagnosis after waiting for a direct current voltage conversion (DC-DC) module to discharge, and determines whether the relay has adhesion fault or not when the next start. However, the DC-DC module needs a certain time for discharging, when the automobile is quickly started in a short time after flameout, the DC-DC module cannot be discharged in time, and the adhesion fault of the BMS misinformation relay can be caused, so that the automobile cannot be started, and the driving safety and the driving experience are seriously influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a relay adhesion diagnosis method and a battery management system, so as to solve the problems that driving safety and driving experience are seriously affected in the existing relay adhesion diagnosis method.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the first aspect of the embodiment of the invention discloses a relay adhesion diagnosis method, which comprises the following steps:
acquiring the running state of an automobile in real time, wherein the running state of the automobile is a starting state or a flameout state;
when the running state of the automobile is switched from the starting state to the flameout state, after a preset time, judging whether the relay has an adhesion fault according to the voltage state of the relay of the automobile;
if the relay has the adhesion fault, storing mark information for indicating the adhesion fault of the relay into a memory;
when the running state of the automobile is switched from the flameout state to the starting state, judging whether the mark information exists in the memory;
if the mark information exists in the memory, judging whether the relay has adhesion fault according to the voltage state of the relay;
and if the relay has the adhesion fault, sending an adhesion fault signal to the vehicle control unit.
Preferably, the process of judging whether the relay has the adhesion fault according to the voltage state of the relay includes:
collecting the outer side voltage and the inner side voltage of a relay of the automobile;
judging whether the difference value of the outer side voltage and the inner side voltage is smaller than a threshold value;
and if the difference value is smaller than the threshold value, determining that the relay has the adhesion fault.
Preferably, if the relay has an adhesion fault, after sending an adhesion fault signal to the vehicle controller, the method further includes:
and recording the fault time of the adhesion fault of the relay.
Preferably, the preset time is greater than or equal to 20 seconds and less than or equal to 30 seconds.
A second aspect of an embodiment of the present invention discloses a battery management system, including:
the acquisition unit is used for acquiring the running state of the automobile in real time, wherein the running state of the automobile is a starting state or a flameout state;
the first detection unit is used for judging whether the relay has an adhesion fault or not according to the voltage state of the relay of the automobile after preset time when the running state of the automobile is switched from the starting state to the flameout state, and executing the storage unit if the relay has the adhesion fault;
the storage unit is used for storing mark information used for indicating that the relay has adhesion faults into a memory;
the second detection unit is used for judging whether the mark information exists in the memory or not when the running state of the automobile is switched from the flameout state to the starting state, and executing the first detection unit if the mark information exists in the memory;
the first detection unit is also used for judging whether the relay has the adhesion fault according to the voltage state of the relay, and if the relay has the adhesion fault, the reporting unit is executed;
and the reporting unit is used for sending an adhesion fault signal to the vehicle control unit.
Preferably, the first detection unit includes:
the acquisition module is used for acquiring the outer side voltage and the inner side voltage of the relay of the automobile;
and the judging module is used for judging whether the difference value of the outside voltage and the inside voltage is smaller than a threshold value or not, and if the difference value is smaller than the threshold value, determining that the relay has the adhesion fault.
Preferably, the system further comprises:
and the recording unit is used for recording the fault time of the adhesion fault of the relay.
Based on the relay adhesion diagnosis method and the battery management system provided by the embodiment of the invention, the method comprises the following steps: acquiring the running state of the automobile in real time; when the running state of the automobile is switched from a starting state to a flameout state, after a preset time, judging whether the relay has an adhesion fault according to the voltage state of the relay of the automobile; if the adhesion fault occurs, storing mark information for indicating the adhesion fault of the relay into a memory; when the running state is switched from a flameout state to a starting state, judging whether mark information exists in the memory or not; if the sign information exists, judging whether the relay has the adhesion fault according to the voltage state of the relay; and if the relay has the adhesion fault, sending an adhesion fault signal to the vehicle control unit. According to the scheme, the relay is subjected to adhesion diagnosis at preset time intervals after the automobile is flamed out, and the DC-DC module is ensured to be completely discharged. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the accuracy of the adhesion diagnosis of the relay is ensured, and the driving safety and the driving experience are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a relay adhesion diagnosis method according to an embodiment of the present invention;
fig. 2 is a flowchart for determining that an adhesion fault occurs in a relay according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a relay adhesion diagnosis method according to an embodiment of the present invention;
fig. 4 is a block diagram of a battery management system according to an embodiment of the present invention;
fig. 5 is a block diagram of another battery management system according to an embodiment of the present invention;
fig. 6 is a block diagram of a battery management system according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The background art shows that the DC-DC module needs a certain time for discharging, when the automobile is quickly started in a short time after flameout, the DC-DC module is probably not discharged in time and is finished by adopting the conventional relay adhesion diagnosis strategy, so that the BMS misinformation relay is caused to generate adhesion faults, the automobile cannot be started, and the driving safety and the driving experience are seriously influenced.
Therefore, the embodiment of the invention provides a relay adhesion diagnosis method and a battery management system, which are used for performing adhesion diagnosis on a relay at a preset time interval after an automobile is flameout, so that complete discharge of a DC-DC module is ensured. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, and the accuracy of the adhesion diagnosis of the relay is ensured so as to improve the driving safety and the driving experience.
It should be noted that, the automobiles to which the relay adhesion diagnosis method provided by the embodiment of the present invention is applied include, but are not limited to: pure fuel vehicles, hybrid electric vehicles and new energy vehicles.
Referring to fig. 1, a flowchart of a relay adhesion diagnosis method according to an embodiment of the present invention is shown, where the relay adhesion diagnosis method includes the following steps:
step S101: and acquiring the running state of the automobile in real time.
In the process of implementing step S101 specifically, the operation state of the vehicle is a start state or a stop state. When the operating state is switched from the starting state to the flameout state, the operating state is generally referred to as vehicle power-off in the embodiment of the invention, and when the operating state is switched from the flameout state to the starting state, the operating state is generally referred to as vehicle power-on in the embodiment of the invention.
Step S102: and when the running state of the automobile is switched from the starting state to the flameout state, judging whether the relay has the adhesion fault or not according to the voltage state of the relay of the automobile after preset time. And if the relay has the adhesion fault, executing the step S103, and if the relay does not have the adhesion fault, enabling the BMS of the automobile to enter a dormant state.
It should be noted that, after the vehicle is powered off, the DC-DC module of the vehicle takes 5 to 10 seconds to complete the discharge. If the adhesion diagnosis is performed on the relay when the DC-DC module is not discharged, the adhesion diagnosis is wrong, so that the adhesion fault of the misinformed relay is caused.
Therefore, in the process of specifically implementing step S102, after the vehicle is powered off, the adhesion diagnosis is performed on the relay after a preset time is delayed, that is, after the DC-DC module is fully discharged, the adhesion diagnosis is performed on the relay, so as to ensure the correctness of the adhesion diagnosis.
For example: when the automobile is powered off, the relay is subjected to adhesion diagnosis after 20-30 seconds.
It should be noted that the above mentioned interval of 20 to 30 seconds is only used for illustration, and the specific preset time is set according to the actual situation, but when the preset time is set, it is required to ensure that the DC-DC module completes the discharge before the preset time.
In a further implementation, the relay is subjected to adhesion diagnosis by an inside voltage and an outside voltage of the relay.
Step S103: and storing mark information for indicating that the relay has the adhesion fault into a memory.
In the process of implementing step S103 specifically, when the vehicle is powered off, if the relay has an adhesion fault, storing flag information indicating that the relay has the adhesion fault in the memory.
For example: when the automobile is powered off, if the relay has adhesion fault, the mark information is stored in an Electrically Erasable Programmable Read Only Memory (EEPROM).
Step S104: and when the running state of the automobile is switched from the flameout state to the starting state, judging whether the mark information exists in the memory, if so, executing the step S105, and if not, running the automobile normally.
In the process of implementing step S104 specifically, when the automobile is powered on, if the flag information can be read from the memory, it is determined that the flag information exists in the memory.
Step S105: and judging whether the relay has the adhesion fault according to the voltage state of the relay, if so, executing the step S106, and if not, operating the automobile normally.
In the process of implementing step S105 specifically, if the flag information exists in the memory, to further determine whether the relay has the adhesion fault, whether the relay has the adhesion fault is determined again according to the voltage state of the relay, and if the relay has the adhesion fault, an adhesion fault signal for indicating that the relay has the adhesion fault is sent to the vehicle control unit.
Step S106: and sending an adhesion fault signal to the vehicle control unit.
Preferably, the fault time of the sticking fault of the relay is recorded.
It should be noted that, the recording of the failure time includes, but is not limited to, the following two ways:
in the first embodiment, the time for storing the flag information in the memory in step S103 is recorded, and the time is used as the failure time.
In a second mode, after the relay is determined to have the sticking fault again in the step S105, the time for determining the sticking fault of the relay in the step S105 is recorded, and the time is taken as the fault time.
It should be noted that the execution sequence of steps S102 to S106 includes, but is not limited to, the execution sequence shown in the above embodiment of the present invention. When the automobile is powered off, step S102 and step S103 are executed, and when the automobile is powered on, step S104 to step S106 are executed.
In the embodiment of the invention, the relay is subjected to adhesion diagnosis at a preset time interval after the automobile is flameout, so that the DC-DC module is ensured to be completely discharged. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the accuracy of the adhesion diagnosis of the relay is ensured, and the driving safety and the driving experience are improved.
In the above embodiment of the present invention, referring to fig. 2, the process of determining whether the relay has the adhesion fault in step S102 and step S105 in fig. 1 shows a flowchart of determining whether the relay has the adhesion fault, which includes the following steps:
step S201: and collecting the outside voltage and the inside voltage of the relay of the automobile.
In the process of specifically implementing step S201, when performing adhesion diagnosis on the relay, the outside voltage and the inside voltage of the relay are respectively collected.
Step S202: and judging whether the difference value of the outside voltage and the inside voltage is smaller than a threshold value, if so, executing the step S203, and if so, determining that the relay does not have the adhesion fault.
In the process of specifically implementing step S202, it should be noted that whether the relay has the adhesion fault is determined by a difference between the outer voltage and the inner voltage of the relay. The specific judgment method is as follows: and if the difference value of the outside voltage and the inside voltage is smaller than the threshold value, the relay is proved to have adhesion fault.
For example: and if the difference value between the outer side voltage and the inner side voltage is less than 2V, the relay is proved to have adhesion fault.
It should be further noted that the difference value smaller than 2V is only used for illustration, and the specific threshold value may be set according to actual situations.
Step S203: and determining that the relay has adhesion fault.
In the embodiment of the invention, when the automobile is powered off, whether the relay has the adhesion fault or not is judged according to the difference value between the outer side voltage and the inner side voltage of the relay after the preset time interval. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the accuracy of the adhesion diagnosis of the relay is ensured, and the driving safety and the driving experience are improved.
In order to better explain the contents shown in fig. 1 and fig. 2 of the above embodiments of the present invention, the contents are illustrated by way of example in fig. 3, it should be noted that the contents shown in fig. 3 are merely used for illustration, and the fig. 3 includes the following steps:
step S301: and powering off the automobile, and executing the step S302 after delaying for 25 seconds.
Step S302: and performing adhesion diagnosis on the relay, if the relay has an adhesion fault, executing the step S303, and if the relay does not have the adhesion fault, entering a dormant state.
In the process of specifically implementing step S302, please refer to the contents shown in each step in fig. 2 for the process of performing adhesion diagnosis on the relay, which is not described herein again.
Step S303: and storing a fault flag bit for indicating that the relay has the adhesion fault into an EEPROM.
Step S304: the car is powered up again.
Step S305: and judging whether the EEPROM has the fault zone bit, if so, executing the step S306, and if not, normally operating the automobile.
Step S306: and performing adhesion diagnosis on the relay again, if the relay has an adhesion fault, executing the step S307, and if the relay does not have the adhesion fault, normally operating the automobile.
Step S307: and reporting the adhesion fault of the relay.
In the embodiment of the invention, the relay is subjected to adhesion diagnosis at a preset time interval after the automobile is flameout, so that the DC-DC module is ensured to be completely discharged. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the accuracy of the adhesion diagnosis of the relay is ensured, and the driving safety and the driving experience are improved.
Corresponding to the relay adhesion diagnosis method provided by the embodiment of the present invention, referring to fig. 4, the embodiment of the present invention further provides a structural block diagram of a battery management system, where the battery management system includes: an acquisition unit 401, a first detection unit 402, a storage unit 403, a second detection unit 404 and a reporting unit 405;
the acquiring unit 401 is configured to acquire an operating state of an automobile in real time, where the operating state of the automobile is a starting state or a flameout state.
A first detecting unit 402, configured to, when the operating state of the vehicle is switched from the start state to the flameout state, after a preset time, determine whether an adhesion fault occurs in the relay according to a voltage state of the relay of the vehicle, and if the adhesion fault occurs in the relay, execute a storing unit 403.
The storage unit 403 is configured to store flag information indicating that the relay has an adhesion fault in a memory.
A second detecting unit 404, configured to determine whether the flag information exists in the memory when the operating state of the vehicle is switched from the flameout state to the starting state, and execute the first detecting unit 402 if the flag information exists in the memory.
The first detecting unit 402 is further configured to determine whether the relay has an adhesion fault according to the voltage state of the relay, and if the relay has the adhesion fault, execute the reporting unit 405.
The reporting unit 405 is configured to send an adhesion fault signal to the vehicle controller.
In the embodiment of the invention, the relay is subjected to adhesion diagnosis at a preset time interval after the automobile is flameout, so that the DC-DC module is ensured to be completely discharged. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the accuracy of the adhesion diagnosis of the relay is ensured, and the driving safety and the driving experience are improved.
Preferably, referring to fig. 5 in conjunction with fig. 4, a structural block diagram of a battery management system according to an embodiment of the present invention is shown, where the first detecting unit 402 includes:
the acquisition module 4021 is used for acquiring the outside voltage and the inside voltage of the relay of the automobile.
The determining module 4022 is configured to determine whether a difference between the outside voltage and the inside voltage is smaller than a threshold, and determine that the relay has an adhesion fault if the difference is smaller than the threshold.
In the embodiment of the invention, when the automobile is powered off, whether the relay has the adhesion fault or not is judged according to the difference value between the outer side voltage and the inner side voltage of the relay after the preset time interval. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the accuracy of the adhesion diagnosis of the relay is ensured, and the driving safety and the driving experience are improved.
Preferably, referring to fig. 6 in conjunction with fig. 4, a structural block diagram of a battery management system according to an embodiment of the present invention is shown, where the battery management system further includes:
and the recording unit 406 is used for recording the fault time of the adhesion fault of the relay.
In summary, the embodiment of the present invention provides a relay adhesion diagnosis method and a battery management system, where the method includes: acquiring the running state of the automobile in real time; when the running state of the automobile is switched from a starting state to a flameout state, after a preset time, judging whether the relay has an adhesion fault according to the voltage state of the relay of the automobile; if the adhesion fault occurs, storing mark information for indicating the adhesion fault of the relay into a memory; when the running state is switched from a flameout state to a starting state, judging whether mark information exists in the memory or not; if the sign information exists, judging whether the relay has the adhesion fault according to the voltage state of the relay; and if the relay has the adhesion fault, sending an adhesion fault signal to the vehicle control unit. According to the scheme, the relay is subjected to adhesion diagnosis at preset time intervals after the automobile is flamed out, and the DC-DC module is ensured to be completely discharged. If the relay has the adhesion fault, the adhesion diagnosis is carried out again when the automobile is started, whether the relay has the adhesion fault or not is further determined, the accuracy of the adhesion diagnosis of the relay is ensured, and the driving safety and the driving experience are improved.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A relay stick diagnostic method, comprising:
acquiring the running state of an automobile in real time, wherein the running state of the automobile is a starting state or a flameout state;
when the running state of the automobile is switched from the starting state to the flameout state, after a preset time, judging whether the relay has an adhesion fault according to the voltage state of the relay of the automobile;
if the relay has the adhesion fault, storing mark information for indicating the adhesion fault of the relay into a memory;
when the running state of the automobile is switched from the flameout state to the starting state, judging whether the mark information exists in the memory;
if the mark information exists in the memory, judging whether the relay has adhesion fault according to the voltage state of the relay;
and if the relay has the adhesion fault, sending an adhesion fault signal to the vehicle control unit.
2. The method according to claim 1, wherein the process of determining whether the relay has the sticking fault according to the voltage state of the relay comprises:
collecting the outer side voltage and the inner side voltage of a relay of the automobile;
judging whether the difference value of the outer side voltage and the inner side voltage is smaller than a threshold value;
and if the difference value is smaller than the threshold value, determining that the relay has the adhesion fault.
3. The method of claim 1, wherein after sending a stuck fault signal to the vehicle controller if the relay has a stuck fault, the method further comprises:
and recording the fault time of the adhesion fault of the relay.
4. The method of claim 1, wherein the preset time is 20 seconds or more and 30 seconds or less.
5. A battery management system, the system comprising:
the acquisition unit is used for acquiring the running state of the automobile in real time, wherein the running state of the automobile is a starting state or a flameout state;
the first detection unit is used for judging whether the relay has an adhesion fault or not according to the voltage state of the relay of the automobile after preset time when the running state of the automobile is switched from the starting state to the flameout state, and executing the storage unit if the relay has the adhesion fault;
the storage unit is used for storing mark information used for indicating that the relay has adhesion faults into a memory;
the second detection unit is used for judging whether the mark information exists in the memory or not when the running state of the automobile is switched from the flameout state to the starting state, and executing the first detection unit if the mark information exists in the memory;
the first detection unit is also used for judging whether the relay has the adhesion fault according to the voltage state of the relay, and if the relay has the adhesion fault, the reporting unit is executed;
and the reporting unit is used for sending an adhesion fault signal to the vehicle control unit.
6. The system of claim 5, wherein the first detection unit comprises:
the acquisition module is used for acquiring the outer side voltage and the inner side voltage of the relay of the automobile;
and the judging module is used for judging whether the difference value of the outside voltage and the inside voltage is smaller than a threshold value or not, and if the difference value is smaller than the threshold value, determining that the relay has the adhesion fault.
7. The system of claim 5, further comprising:
and the recording unit is used for recording the fault time of the adhesion fault of the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910883456.XA CN112526329A (en) | 2019-09-18 | 2019-09-18 | Relay adhesion diagnosis method and battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910883456.XA CN112526329A (en) | 2019-09-18 | 2019-09-18 | Relay adhesion diagnosis method and battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112526329A true CN112526329A (en) | 2021-03-19 |
Family
ID=74975179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910883456.XA Pending CN112526329A (en) | 2019-09-18 | 2019-09-18 | Relay adhesion diagnosis method and battery management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112526329A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655378A (en) * | 2021-07-20 | 2021-11-16 | 湖州学院 | Method for detecting adhesion fault of new energy battery electric vehicle relay |
| CN114047454A (en) * | 2021-11-03 | 2022-02-15 | 一汽解放汽车有限公司 | Vehicle power system fault diagnosis method, system, device and medium |
| CN117114464A (en) * | 2023-07-18 | 2023-11-24 | 广州市城市规划勘测设计研究院 | Quality monitoring method and device for automobile industry chain, electronic equipment and storage medium |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07101345A (en) * | 1993-10-01 | 1995-04-18 | Aisin Seiki Co Ltd | Electric power supply relay failure preventive device for electric motor driving apparatus |
| US20020057015A1 (en) * | 2000-11-10 | 2002-05-16 | Mitsubishi Denki Kabushiki Kaisha | Electric power steering controller |
| CN101277058A (en) * | 2008-02-28 | 2008-10-01 | 艾默生网络能源有限公司 | Secondary time-delay soft start circuit of DC/DC convertor |
| CN102956399A (en) * | 2011-10-21 | 2013-03-06 | 厦门市芯阳科技有限公司 | Method for eliminating adhesion of relay contact |
| CN105988082A (en) * | 2015-02-13 | 2016-10-05 | 广州汽车集团股份有限公司 | Detection method and apparatus for relay state of high-voltage system of electric car |
| CN206610775U (en) * | 2016-12-01 | 2017-11-03 | 广东恒沃动力科技有限公司 | A kind of relay anti-adhesion circuit |
| CN107479002A (en) * | 2017-08-29 | 2017-12-15 | 宁德时代新能源科技股份有限公司 | Relay diagnosis circuit and method and battery management system |
| CN107526041A (en) * | 2017-08-29 | 2017-12-29 | 宁德时代新能源科技股份有限公司 | Battery detection circuit and battery management system |
| CN108333429A (en) * | 2018-02-28 | 2018-07-27 | 北京新能源汽车股份有限公司 | Power battery management system, and device and method for detecting insulation resistance of power battery |
| CN108608865A (en) * | 2016-12-09 | 2018-10-02 | 上海大郡动力控制技术有限公司 | The method that vehicle control unit of electric vehicle controls high pressure power-on and power-off |
| CN108761324A (en) * | 2018-06-15 | 2018-11-06 | 爱驰汽车有限公司 | The diagnostic method and device of the high-voltage relay functional response failure of battery pack |
| KR101955625B1 (en) * | 2017-11-22 | 2019-03-07 | 엘아이지넥스원 주식회사 | Apparatus and Method for Checking Fault of Relay |
| CN109581214A (en) * | 2018-12-29 | 2019-04-05 | 珠海广通汽车有限公司 | A kind of PDU relay adhesion detection circuit, detection method and automobilism control method |
-
2019
- 2019-09-18 CN CN201910883456.XA patent/CN112526329A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07101345A (en) * | 1993-10-01 | 1995-04-18 | Aisin Seiki Co Ltd | Electric power supply relay failure preventive device for electric motor driving apparatus |
| US20020057015A1 (en) * | 2000-11-10 | 2002-05-16 | Mitsubishi Denki Kabushiki Kaisha | Electric power steering controller |
| CN101277058A (en) * | 2008-02-28 | 2008-10-01 | 艾默生网络能源有限公司 | Secondary time-delay soft start circuit of DC/DC convertor |
| CN102956399A (en) * | 2011-10-21 | 2013-03-06 | 厦门市芯阳科技有限公司 | Method for eliminating adhesion of relay contact |
| CN105988082A (en) * | 2015-02-13 | 2016-10-05 | 广州汽车集团股份有限公司 | Detection method and apparatus for relay state of high-voltage system of electric car |
| CN206610775U (en) * | 2016-12-01 | 2017-11-03 | 广东恒沃动力科技有限公司 | A kind of relay anti-adhesion circuit |
| CN108608865A (en) * | 2016-12-09 | 2018-10-02 | 上海大郡动力控制技术有限公司 | The method that vehicle control unit of electric vehicle controls high pressure power-on and power-off |
| CN107526041A (en) * | 2017-08-29 | 2017-12-29 | 宁德时代新能源科技股份有限公司 | Battery detection circuit and battery management system |
| CN107479002A (en) * | 2017-08-29 | 2017-12-15 | 宁德时代新能源科技股份有限公司 | Relay diagnosis circuit and method and battery management system |
| KR101955625B1 (en) * | 2017-11-22 | 2019-03-07 | 엘아이지넥스원 주식회사 | Apparatus and Method for Checking Fault of Relay |
| CN108333429A (en) * | 2018-02-28 | 2018-07-27 | 北京新能源汽车股份有限公司 | Power battery management system, and device and method for detecting insulation resistance of power battery |
| CN108761324A (en) * | 2018-06-15 | 2018-11-06 | 爱驰汽车有限公司 | The diagnostic method and device of the high-voltage relay functional response failure of battery pack |
| CN109581214A (en) * | 2018-12-29 | 2019-04-05 | 珠海广通汽车有限公司 | A kind of PDU relay adhesion detection circuit, detection method and automobilism control method |
Non-Patent Citations (1)
| Title |
|---|
| 罗丙荷等: "纯电动客车高压接触器触点故障诊断的设计方案", 《客车技术与研究》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655378A (en) * | 2021-07-20 | 2021-11-16 | 湖州学院 | Method for detecting adhesion fault of new energy battery electric vehicle relay |
| CN113655378B (en) * | 2021-07-20 | 2024-04-05 | 湖州学院 | Method for detecting adhesion fault of relay of new energy battery electric vehicle |
| CN114047454A (en) * | 2021-11-03 | 2022-02-15 | 一汽解放汽车有限公司 | Vehicle power system fault diagnosis method, system, device and medium |
| CN114047454B (en) * | 2021-11-03 | 2024-07-09 | 一汽解放汽车有限公司 | Vehicle power supply system fault diagnosis method, system, equipment and medium |
| CN117114464A (en) * | 2023-07-18 | 2023-11-24 | 广州市城市规划勘测设计研究院 | Quality monitoring method and device for automobile industry chain, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108761324B (en) | Diagnosis method and device for functional responsiveness fault of high-voltage relay of battery pack | |
| CN112526329A (en) | Relay adhesion diagnosis method and battery management system | |
| US9551750B2 (en) | Monitoring system and vehicle | |
| EP3032633A1 (en) | Battery control system, and vehicle control system | |
| EP3032689B1 (en) | Battery control system and vehicle control system | |
| US9077187B2 (en) | Apparatus and method for controlling charging and discharging of batteries | |
| CN110907844A (en) | Vehicle-mounted storage battery state detection method and device, readable storage medium and vehicle | |
| US20170115370A1 (en) | Apparatus and method of diagnosing current sensor of eco-friendly vehicle | |
| US20210039519A1 (en) | Apparatus and application for predicting discharge of battery | |
| CN113771693A (en) | Monitoring method and device for vehicle power battery | |
| KR101856367B1 (en) | System and method for measuring offset current of current sensor for sensing current of battery | |
| CN116461489A (en) | Engine start-stop control method and device, storage medium and vehicle | |
| CN113884871A (en) | Relay state detection method, device, equipment and storage medium | |
| CN105354894B (en) | The method of supplying power to and device of a kind of drive recorder | |
| CN112009251B (en) | Electric vehicle battery replacement system diagnosis method | |
| JP7213649B2 (en) | Relay diagnosis device for electric vehicles | |
| CN116703353A (en) | New energy automobile prediction maintenance method, electronic equipment and storage medium | |
| CN116533786A (en) | Charging circuit, charging system, charging method, vehicle, and storage medium | |
| CN106911166A (en) | Intelligence anti-routed method for electrically and device | |
| CN115782591A (en) | Charging control method, device, equipment and storage medium | |
| CN108539303B (en) | Method for charging an energy store of a vehicle | |
| CN114994558A (en) | Battery life detection method, terminal device and computer-readable storage medium | |
| CN113602094A (en) | New energy automobile power-on method and device | |
| CN114791563A (en) | Apparatus and method for diagnosing battery failure | |
| KR20210058717A (en) | Diagnosing Apparatus for Malfunction of Switch means included in Multi Battery Pack and Method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |
|
| RJ01 | Rejection of invention patent application after publication |