CN115946533A - Battery pack fault early warning method and vehicle - Google Patents
Battery pack fault early warning method and vehicle Download PDFInfo
- Publication number
- CN115946533A CN115946533A CN202310194459.9A CN202310194459A CN115946533A CN 115946533 A CN115946533 A CN 115946533A CN 202310194459 A CN202310194459 A CN 202310194459A CN 115946533 A CN115946533 A CN 115946533A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- early warning
- vibration
- vibration acceleration
- vehicle
- 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
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000001133 acceleration Effects 0.000 claims abstract description 84
- 238000001514 detection method Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application provides a battery pack fault early warning method, which is applied to a vehicle and comprises the following steps: acquiring the vibration acceleration of the battery pack; outputting a battery pack bottom supporting fault early warning under the condition that the vibration acceleration is greater than or equal to a first threshold and is less than a second threshold; outputting a battery pack leakage fault early warning when the vibration acceleration is greater than or equal to the second threshold; wherein the first threshold is less than the second threshold. The detection and early warning function for the battery leakage fault caused by the bottom support of the battery pack is realized.
Description
Technical Field
The application relates to the technical field of battery safety, in particular to a battery pack fault early warning method and a vehicle.
Background
The energy revolution promotes the rapid development of new energy automobiles, so that electric automobiles replace fuel automobiles and have an unblocked trend. The battery package is as the important part that electric automobile energy supported, often receives the influence that the car held in the palm the end, and often leads to the emergence of battery package weeping problem again when the battery package takes place to hold in the palm the end. At present, the prior art does not provide a related early warning technology for the leakage of the battery pack caused by the bottom of the battery pack. Therefore, how to detect and early warn the battery leakage caused by the bottom of the battery pack becomes a technical problem to be solved urgently.
Disclosure of Invention
The embodiment of the application provides a battery pack fault early warning method and a vehicle, and aims to solve the early warning problem of battery leakage caused by a battery pack bottom support.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a battery pack fault early warning method, which is applied to a vehicle, and includes:
acquiring the vibration acceleration of the battery pack;
outputting a battery pack bottom supporting fault early warning under the condition that the vibration acceleration is greater than or equal to a first threshold value and the vibration acceleration is less than a second threshold value;
outputting a battery pack leakage fault early warning under the condition that the vibration acceleration is greater than or equal to the second threshold;
wherein the first threshold is less than the second threshold.
Optionally, the acquiring the vibration acceleration of the battery pack includes:
acquiring a vibration signal of the battery pack acquired by a vibration sensor, converting the vibration signal into a voltage signal, and converting the voltage signal into a vibration acceleration signal;
and acquiring the vibration acceleration of the battery pack based on the vibration acceleration signal.
Optionally, after obtaining the vibration acceleration of the battery pack, the method further includes:
acquiring a running speed of a vehicle, a continuous running time of the vehicle at the running speed and a vehicle state of the vehicle;
controlling a vibration sensor to execute a sleep mode under the condition that the running speed is less than or equal to a preset running speed and the continuous running time is greater than a preset running time;
and controlling the vibration sensor to execute a working mode under the condition that the running speed is greater than a preset running speed and the vehicle state is a preset state.
Optionally, the outputting a battery pack bottom supporting fault warning if the vibration acceleration is greater than or equal to a first threshold and the vibration acceleration is less than a second threshold includes:
and when the vibration sensor executes a working mode, and when the vibration acceleration is greater than or equal to the first threshold and the vibration acceleration is less than the second threshold, outputting a battery pack bottom supporting fault early warning.
Optionally, the outputting a battery pack leakage fault warning if the vibration acceleration is greater than or equal to the second threshold includes:
and outputting a battery pack leakage fault early warning when the vibration sensor executes a working mode and the vibration acceleration is greater than or equal to the second threshold value.
Optionally, the method further comprises:
and displaying the early warning of the bottom supporting fault of the battery pack or displaying the early warning of the leakage fault of the battery pack by a display screen of a control instrument.
Optionally, the method further comprises:
and reporting the early warning of the bottom supporting fault of the battery pack or the early warning of the leakage fault of the battery pack to a background server of the vehicle.
In a second aspect, embodiments of the present application also provide a vehicle configured to perform the method steps of any one of the first aspect.
Optionally, the vehicle includes a vibration sensor and a battery pack management system, the vibration sensor includes a sensing module and a control module, an output end of the vibration sensor is connected with an input end of the control module, and the battery pack management system is connected with an output end of the control module;
the battery pack management system comprises a sensing module, a control module, a battery pack management system and a battery pack leakage fault early warning module, wherein the sensing module is used for acquiring a vibration signal of a battery pack, converting the vibration signal into a voltage signal and sending the voltage signal to the control module, the control module is used for receiving the voltage signal and converting the voltage signal into a vibration acceleration and transmitting the vibration acceleration to the battery pack management system, and the battery pack management system is used for outputting the battery pack leakage fault early warning or the battery pack bottom supporting fault early warning based on the vibration acceleration.
Optionally, the vehicle still includes gateway and instrument display screen, the input of gateway with battery package management system's output links to each other, the output of gateway is connected with the instrument display screen, the instrument display screen is used for showing battery package weeping fault early warning or battery package support end fault early warning.
In the embodiment of the application, the obtained vibration acceleration value of the battery pack is used for detecting and early warning the bottom supporting fault of the battery pack or the liquid leakage fault of the battery pack. Like this, through the threshold value of setting for battery package vibration acceleration, including first threshold value and second threshold value, can detect out the battery package of different fault status to carry out the early warning to different faults, effectively promoted the security performance of battery package.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for early warning a failure of a battery pack according to an embodiment of the present disclosure;
fig. 2 is a second flowchart of a battery pack failure warning method according to an embodiment of the present application
FIG. 3 is a schematic structural diagram of a vehicle according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a mounting structure of the vibration sensor in the vehicle.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The embodiment of the application provides a battery pack fault early warning method. Referring to fig. 1, fig. 1 is a flowchart of a battery pack fault early warning method provided in an embodiment of the present application, where the method includes the following steps:
and 101, acquiring the vibration acceleration of the battery pack.
In a specific step of the embodiment of the present application, the vibration acceleration of the battery pack may be obtained, where the vibration acceleration obtained by the battery pack may be specifically measured by a vibration sensor mounted on the battery pack, or may be obtained by another device for measuring a vibration signal, and the present application is not limited herein. Specifically, the process of acquiring the vibration acceleration may be to acquire a vibration harmonic by acquiring the battery pack through a vibration sensor fixed to the battery pack, convert the vibration harmonic into a vibration signal to be received by the sensor, convert the vibration signal into a voltage signal, and finally convert the voltage signal into the vibration acceleration to be output. Like this, the value of vibration acceleration can accurate convenient acquireing, the follow-up weeping trouble of judging this vibration acceleration value in order to early warning battery package existence of being convenient for.
It should be understood that the battery pack refers to an energy source power device which is mounted on an electric vehicle and can be used as the electric vehicle. The vehicle-mounted power battery pack can continuously bear the vibration load during the running process of the electric automobile, so the vibration test is an important part in the reliability test of the battery pack. Under the condition that the reliability of the battery pack is failed, especially when some key components or structures are failed, for example, the conditions of looseness, breakage and the like occur, the battery cell or the module will be displaced, shaken or extruded, which will further cause accelerated damage to the related components, lead to the failure of electric leakage or a sampling sensor, even induce the performance attenuation of the battery, and cause the occurrence of the conditions of management system failure, electric energy interruption or fire explosion and the like. Therefore, the fault mode of the battery pack is judged based on the vibration acceleration of the battery pack, and therefore the fault of the battery pack is early warned.
102, outputting a battery pack bottom supporting fault early warning under the condition that the vibration acceleration is greater than or equal to a first threshold value and is less than a second threshold value;
and 103, outputting a battery pack leakage fault early warning under the condition that the vibration acceleration is greater than or equal to the second threshold.
Wherein the first threshold is less than the second threshold.
In the above steps, the first threshold and the second threshold may be vibration acceleration values determined in an actual test when the bottom-up fault and the liquid leakage fault occur in the battery pack, and specific values may be determined by a test designer after a comprehensive test. In the embodiment of the application, whether the bottom supporting fault exists in the battery pack can be detected by judging the vibration acceleration value, and when the bottom supporting fault of the battery pack exceeds a first threshold value but does not reach a second threshold value, the early warning of the bottom supporting fault of the battery pack occurs. And when the bottom supporting fault level exceeds a second threshold value, battery pack leakage fault early warning is generated. Therefore, the vibration acceleration of the battery pack is logically judged through the steps, so that the fault early warning of the bottom support of the battery pack or the leakage of the battery pack is realized.
Optionally, the obtaining of the vibration acceleration of the battery pack includes:
acquiring a vibration signal of the battery pack acquired by a vibration sensor, converting the vibration signal into a voltage signal, and converting the voltage signal into a vibration acceleration signal;
and acquiring the vibration acceleration of the battery pack based on the vibration acceleration signal.
In the embodiment of this application, can adopt the mode of installation vibration sensor to acquire the vibration acceleration of battery package, specific conversion process can be that electric automobile receives the support end influence, has leaded to the battery package to take place to hold in the palm the end from this, can receive the vibration when the battery package takes place to hold in the palm the end, produces the vibration harmonic from this. The vibration sensor acquires the vibration harmonic wave, converts the vibration harmonic wave into a vibration signal, and then converts the vibration signal into a vibration acceleration signal. Above, obtained the vibration acceleration of battery package, be convenient for detect the early warning to the trouble of battery package, promote the security of battery package.
Optionally, after obtaining the vibration acceleration of the battery pack, the method further includes:
acquiring a running speed of a vehicle, a continuous running time of the vehicle at the running speed and a vehicle state of the vehicle;
controlling a vibration sensor to execute a sleep mode under the condition that the running speed is less than or equal to a preset running speed and the continuous running time is greater than a preset running time;
and controlling the vibration sensor to execute a working mode under the condition that the running speed is greater than a preset running speed and the vehicle state is a preset state.
In another specific embodiment of the application, after the vibration acceleration of the battery pack is acquired, a specific mode of the battery pack can be detected, so that the vibration sensor detects and warns the bottom supporting fault and the liquid leakage fault in the working mode. And when the vehicle is in a certain state, the vibration sensor is in a sleep mode, so that the power loss of the vibration sensor can be reduced, and the performance of the vibration sensor is improved.
Specifically, the running speed of the vehicle, the duration of the running of the vehicle at the running speed, and the vehicle state of the vehicle are first acquired, the specific running or suspension state of the vehicle and the like can be determined by the above three indexes, and it is determined whether or not the vibration acceleration of the battery pack needs to be detected based on the actual state of the vehicle, thereby determining whether or not the vibration sensor needs to enter the operation mode.
Optionally, under the condition that the vibration acceleration is greater than or equal to a first threshold and the vibration acceleration is less than a second threshold, outputting a battery pack bottom supporting fault warning, including:
and when the vibration sensor executes a working mode and the vibration acceleration is greater than or equal to the first threshold value and the vibration acceleration is less than the second threshold value, outputting a battery pack bottom supporting fault early warning.
Optionally, under the condition that the vibration acceleration is greater than or equal to the second threshold, outputting a battery pack leakage fault warning, including:
and when the vibration sensor executes a working mode and the vibration acceleration is greater than or equal to the second threshold value, outputting a battery pack leakage fault early warning.
Based on the embodiment, when the vibration sensor is in the working mode state, the vibration acceleration acquired by the vibration sensor is judged and compared, so that the power loss of the vibration sensor can be reduced, the performance of the vibration sensor is improved, and the bottom supporting fault of the battery pack or the electric leakage fault of the battery pack can be detected in time.
Optionally, the method further comprises:
and controlling an instrument display screen to display the battery pack bottom supporting fault early warning or the battery pack leakage fault early warning.
Optionally, the method further comprises:
and reporting the battery pack bottom supporting fault early warning or the battery pack leakage fault early warning to a background server of the vehicle.
It is worth mentioning that the early warning of the bottom fault of the battery pack or the early warning of the faults of the battery pack can be displayed on a display screen and timely transmitted to a user, so that the user can conveniently check related faults and timely remove the faults, and the safety performance of the vehicle is improved.
Referring to fig. 2, in one embodiment of the present application, the method comprises the following steps:
and step 124, reporting the leakage fault early warning of the battery pack to a background server of the vehicle.
In a second aspect, referring specifically to fig. 2, an embodiment of the present application further provides a vehicle configured to perform the method steps of any one of the first aspect.
Optionally, the vehicle includes a vibration sensor 201 and a battery pack management system 202, the vibration sensor 201 includes a sensing module 2011 and a control module 2012, an output end of the vibration sensor 201 is connected to an input end of the control module 2012, and the battery pack management system 202 is connected to an output end of the control module 2012;
wherein, sensing module 2011 is used for obtaining the vibration signal of battery package, and will vibration signal turns into voltage signal and sends for control module 2012, and control module 2012 is used for receiving voltage signal and with voltage signal turns into vibration acceleration and transmits for battery package management system 202, and battery package management system 202 is used for based on vibration acceleration output battery package weeping fault early warning or the battery package holds in the palm end fault early warning of battery package.
Referring to fig. 3, in another embodiment of the present application, a vehicle may be further designed, where the vehicle is configured with a battery pack, and the vehicle is capable of executing the battery pack fault early warning method in the foregoing embodiment, and the vehicle is capable of achieving all beneficial effects in the foregoing embodiment, which is not described herein again specifically.
It should be noted that the vibration sensor 201 in this application includes two parts, namely a sensing module 2011 and a control module 2012, the sensing module 2011 serves as an execution structure and can receive and convert vibration harmonics of the battery pack into a voltage signal, the control module 2012 converts the voltage signal into a vibration acceleration signal and transmits the vibration acceleration signal to a battery pack management system connected to the vibration sensor 201, and the battery pack management system 202 can determine a relationship between the vibration acceleration value and a first threshold value and a second threshold value, so as to determine and warn a bottoming fault of the battery pack or a leakage fault of the battery pack.
Optionally, the vehicle further includes a gateway 203 and an instrument display screen 204, an input end of the gateway 203 is connected to an output end of the battery pack management system 202, an output end of the gateway 203 is connected to the instrument display screen 204, and the instrument display screen 204 is used for displaying battery pack leakage fault early warning or battery pack bottom supporting fault early warning.
Specifically, a gateway 203 and an instrument display screen 204 may be further provided, where the gateway 203 is configured to connect to each device for data signal transmission, and the instrument display screen 204 is connected to an output end of the gateway 203 and receives information transmitted from the gateway 203 to display leakage failure warning information of the battery pack or bottom-supported failure warning information of the battery pack.
Referring to fig. 4, the embodiment of the present application further discloses a schematic structural diagram of a mounting structure of a vibration sensor in a vehicle, where the vibration sensor 201 is mounted on a battery pack, and the mounted battery pack further includes some related components: 301 is an upper cover plate, 302 is a bottom guard plate, 303 is a front side member, 304 is a front side member, 305 is a mounting bracket, and 306 is a mounting bolt. Specifically, the force applied to the bottom of the battery pack can transmit the vibration harmonic to the front side member 303 through the bottom guard plate 302, and the front side member 303 transmits the vibration harmonic to the front longitudinal member 304. Finally, the front longitudinal beam 304 transmits the vibration harmonic to the vibration sensor 201, and the vibration sensor 201 converts the vibration signal into an electric signal to be sent out. Like this, vibration sensor 201 can directly turn into vibration signal with the vibration harmonic on the battery package in order to obtain vibration acceleration, is convenient for detect the early warning to the trouble of battery package, promotes the security of battery package in the vehicle.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (10)
1. A battery pack fault early warning method is applied to a vehicle and is characterized by comprising the following steps:
acquiring the vibration acceleration of the battery pack;
outputting a battery pack bottom supporting fault early warning under the condition that the vibration acceleration is greater than or equal to a first threshold and is less than a second threshold;
outputting a battery pack leakage fault early warning when the vibration acceleration is greater than or equal to the second threshold;
wherein the first threshold is less than the second threshold.
2. The method of claim 1, wherein obtaining the vibration acceleration of the battery pack comprises:
acquiring a vibration signal of the battery pack acquired by a vibration sensor, converting the vibration signal into a voltage signal, and converting the voltage signal into a vibration acceleration signal;
and acquiring the vibration acceleration of the battery pack based on the vibration acceleration signal.
3. The method of claim 1, wherein after obtaining the vibration acceleration of the battery pack, further comprising:
acquiring a running speed of a vehicle, a continuous running time of the vehicle at the running speed and a vehicle state of the vehicle;
controlling a vibration sensor to execute a sleep mode under the condition that the running speed is less than or equal to a preset running speed and the continuous running time is greater than a preset running time;
and controlling the vibration sensor to execute a working mode under the condition that the running speed is greater than a preset running speed and the vehicle state is a preset state.
4. The method according to claim 3, wherein the outputting a battery pack bottom supporting fault early warning when the vibration acceleration is greater than or equal to a first threshold and the vibration acceleration is less than a second threshold comprises:
and when the vibration sensor executes a working mode, and when the vibration acceleration is greater than or equal to the first threshold and the vibration acceleration is less than the second threshold, outputting a battery pack bottom supporting fault early warning.
5. The method of claim 3, wherein outputting a battery pack leakage fault warning if the vibration acceleration is greater than or equal to the second threshold comprises:
and when the vibration sensor executes a working mode and the vibration acceleration is greater than or equal to the second threshold value, outputting a battery pack leakage fault early warning.
6. The method of claim 1, further comprising:
and displaying the early warning of the bottom supporting fault of the battery pack or displaying the early warning of the leakage fault of the battery pack by a display screen of a control instrument.
7. The method of claim 1, further comprising:
and reporting the early warning of the bottom supporting fault of the battery pack or the early warning of the leakage fault of the battery pack to a background server of the vehicle.
8. A vehicle, characterized in that the vehicle is configured to execute a battery pack failure warning method according to any one of claims 1 to 7.
9. The vehicle of claim 8, comprising a vibration sensor and a battery pack management system, the vibration sensor comprising a sensing module and a control module, an output of the vibration sensor being connected to an input of the control module, the battery pack management system being connected to an output of the control module;
the battery pack management system comprises a sensing module, a control module, a battery pack management system and a battery pack leakage fault early warning module, wherein the sensing module is used for acquiring a vibration signal of a battery pack, converting the vibration signal into a voltage signal and sending the voltage signal to the control module, the control module is used for receiving the voltage signal and converting the voltage signal into a vibration acceleration and transmitting the vibration acceleration to the battery pack management system, and the battery pack management system is used for outputting the battery pack leakage fault early warning or the battery pack bottom supporting fault early warning based on the vibration acceleration.
10. The vehicle of claim 9, further comprising a gateway and an instrument display screen, wherein an input end of the gateway is connected to an output end of the battery pack management system, an output end of the gateway is connected to the instrument display screen, and the instrument display screen is used for displaying battery pack leakage fault early warning or battery pack bottom supporting fault early warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310194459.9A CN115946533A (en) | 2023-02-27 | 2023-02-27 | Battery pack fault early warning method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310194459.9A CN115946533A (en) | 2023-02-27 | 2023-02-27 | Battery pack fault early warning method and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115946533A true CN115946533A (en) | 2023-04-11 |
Family
ID=87297804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310194459.9A Pending CN115946533A (en) | 2023-02-27 | 2023-02-27 | Battery pack fault early warning method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115946533A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120037154A (en) * | 2010-10-11 | 2012-04-19 | 현대자동차주식회사 | Method for diagnosing error of battery system |
| CN104827929A (en) * | 2014-09-22 | 2015-08-12 | 北汽福田汽车股份有限公司 | Control method and control device of electric vehicle |
| DE102019200636A1 (en) * | 2018-02-28 | 2019-08-29 | Denso Corporation | VEHICLE CONTROL DEVICE |
| CN110239463A (en) * | 2019-07-18 | 2019-09-17 | 深圳嗒程科技有限公司 | A kind of vehicle-mounted TBOX |
| CN111289097A (en) * | 2020-02-25 | 2020-06-16 | 河海大学 | Lithium ion battery fault early warning method and system based on vibration signals |
| CN113060068A (en) * | 2021-04-21 | 2021-07-02 | 北京理工大学 | Electric vehicle chassis collision protection and alarm system |
| CN114827336A (en) * | 2021-01-19 | 2022-07-29 | 深圳市奇虎智能科技有限公司 | Automobile data recorder control method, automobile data recorder and storage medium |
-
2023
- 2023-02-27 CN CN202310194459.9A patent/CN115946533A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120037154A (en) * | 2010-10-11 | 2012-04-19 | 현대자동차주식회사 | Method for diagnosing error of battery system |
| CN104827929A (en) * | 2014-09-22 | 2015-08-12 | 北汽福田汽车股份有限公司 | Control method and control device of electric vehicle |
| DE102019200636A1 (en) * | 2018-02-28 | 2019-08-29 | Denso Corporation | VEHICLE CONTROL DEVICE |
| CN110239463A (en) * | 2019-07-18 | 2019-09-17 | 深圳嗒程科技有限公司 | A kind of vehicle-mounted TBOX |
| CN111289097A (en) * | 2020-02-25 | 2020-06-16 | 河海大学 | Lithium ion battery fault early warning method and system based on vibration signals |
| CN114827336A (en) * | 2021-01-19 | 2022-07-29 | 深圳市奇虎智能科技有限公司 | Automobile data recorder control method, automobile data recorder and storage medium |
| CN113060068A (en) * | 2021-04-21 | 2021-07-02 | 北京理工大学 | Electric vehicle chassis collision protection and alarm system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101850723B (en) | Fault detecting and processing method for current sensor of motor control unit of electric automobile | |
| CN112356689B (en) | Detection method and system for safety early warning of hydrogen fuel cell automobile and vehicle-mounted terminal | |
| JP2581571B2 (en) | Battery voltage warning device | |
| CN102929272B (en) | A kind of motor system fault processing method and processor | |
| CN102393733B (en) | Failure diagnosis method, fault diagnosis instrument and system thereof, new energy automobile | |
| CN114137932A (en) | Vehicle diagnosis method, vehicle control unit, vehicle and readable storage medium | |
| CN112356674B (en) | Early deformation early warning method for power battery pack | |
| CN108238538B (en) | Fault monitoring method and fault monitoring system of escalator | |
| CN112895900B (en) | Hydrogen energy tramcar hydrogen redundancy monitoring protection device and method | |
| CN103262332A (en) | Battery system with cell voltage detecting units | |
| CN112977066A (en) | Battery collision safety monitoring and early warning system based on thin film sensor | |
| CN105067150A (en) | Motor car axle box temperature detection system and method | |
| CN110966515A (en) | Fuel cell vehicle and fuel gas filling safety control method thereof | |
| CN202806398U (en) | Car combination instrument self-checking device, car combination instrument and car | |
| CN102729835A (en) | Vehicle-mounted supercapacitor management system and method | |
| CN113375928A (en) | Real-time basic performance detection system of gearbox | |
| CN115946533A (en) | Battery pack fault early warning method and vehicle | |
| CN109050527B (en) | Vehicle collision detection system | |
| CN113961386A (en) | Automatic management method for software version of whole vehicle | |
| CN109142856A (en) | A kind of the startup power detection device and method of engine | |
| CN114279712A (en) | Automobile engine fault detection device | |
| CN118219838A (en) | Collision safety early warning device, detection method, electronic equipment and vehicle | |
| CN115356542A (en) | Method and device for detecting screw connection condition of high-voltage bus in battery pack | |
| CN209940414U (en) | Weighing system for working bucket of overhead working truck | |
| CN209606462U (en) | A kind of speed probe intelligent detection equipment applied to rail traffic |
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 |