CN211148867U - Battery pack diagnostic device for electric vehicle - Google Patents
Battery pack diagnostic device for electric vehicle Download PDFInfo
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- CN211148867U CN211148867U CN201921866416.6U CN201921866416U CN211148867U CN 211148867 U CN211148867 U CN 211148867U CN 201921866416 U CN201921866416 U CN 201921866416U CN 211148867 U CN211148867 U CN 211148867U
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- battery pack
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- battery
- power supply
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- 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
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The utility model relates to an electric automobile battery package diagnostic device, including storage device, failure diagnosis unit, balanced control unit, CAN communication unit, touch display screen, built-in power supply, consumption measuring unit and insulating monitoring unit. The storage device is used for storing new battery management system software, automatically upgrading the battery management system software in the battery pack and calibrating parameters by modifying the configuration file; the fault diagnosis unit is used for reporting abnormal data of the battery pack on one hand and reading specific battery information of the battery pack on the other hand; the balance control unit is used for carrying out balance setting on any string of electric cores. The utility model discloses can carry out insulation resistance and measure, guarantee field personnel's safety, can provide 12V 24V power, measure the consumption of load, judge whether have a problem, maintain the battery.
Description
Technical Field
The utility model relates to a battery package fault detection equipment particularly, is an electric automobile battery package diagnostic device.
Background
With the continuous development of electric vehicles, the after-sale problems of electric vehicles are more and more prominent. Because the electronic controller node of electric automobile is more, it is also comparatively loaded down with trivial details to investigate the inside problem of battery package. The battery pack is one of the most critical components of the electric automobile, when the battery has a problem, a notebook computer is adopted for fault detection and software upgrading by technicians, the battery pack data is read by the upper computer, and the technicians need to be trained before to be skilled in use. This method is very inconvenient because the field conditions are generally crude. The common diagnosis device can only simply display some parameters, has a complex interface, does not contain a power supply battery, cannot measure the power of a load, cannot perform insulation measurement, can only read insulation data in the BMS, forms potential safety hazards for field personnel, does not support the balanced configuration of single battery cells, and causes inconvenient and unsafe fault diagnosis of the battery pack of the electric automobile. In addition, because the battery package is mostly high voltage system, directly carry out the operation and also can bring the potential safety hazard.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an electric automobile battery package diagnostic device to reach the purpose of conveniently detecting the battery package trouble.
For solving the above technical problem, the utility model discloses a technical scheme is:
a battery pack diagnostic device of an electric vehicle comprises a storage device, a fault diagnosis unit, a balance control unit and a CAN communication unit;
the storage device is used for storing new battery management system software, automatically upgrading the battery management system software in the battery pack and calibrating parameters by modifying the configuration file;
the fault diagnosis unit is used for reporting abnormal data of the battery pack on one hand and reading specific battery information of the battery pack on the other hand;
the balance control unit is used for carrying out balance setting on any one string of the electric cores;
the storage equipment, the fault diagnosis unit and the balance control unit are all connected with the CAN communication unit;
the CAN communication unit is used for being connected with a finished automobile CAN network and reading data of a battery pack, and is provided with an OBD interface and a battery pack communication interface.
Further, the storage device is a U disk or an SD card.
And the touch display screen is connected with the fault diagnosis unit, the balance control unit and the CAN communication unit to display data and perform human-computer interaction.
Further, the system also comprises a built-in power supply and a power consumption measuring unit, wherein the built-in power supply is used for providing 12V or 24V power supply for loads including a battery management system; the power consumption measuring unit is connected with a built-in power supply and is provided with a 12V/24V power supply interface.
The insulation monitoring unit is used for carrying out insulation detection on the battery pack and measuring the insulation resistance value of the battery pack; the insulation detection unit is provided with an insulation detection interface.
Compared with the prior art, the utility model provides an electric automobile supports BMS software upgrading and parameter calibration, can with data record to USB flash disk or SD card in. Two failure diagnosis modes are provided, and a plurality of interfaces are provided.
It is usable the utility model discloses carry out insulation resistance and measure, guarantee site personnel's safety. The 12V/24V power supply can be provided, the power consumption of the load is measured, and whether a problem exists is judged. And for any string of battery cores, the balance configuration can be carried out, and the battery is simply maintained. When the diagnosis device is used for a vehicle, the diagnosis device can be directly connected to the OBD interface of the vehicle, relevant parameter information of the battery pack is read, and 12V power supply of the OBD interface can be directly used for power supply. Finally, the purpose of conveniently detecting the faults of the battery pack of the electric automobile is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention in any way.
Fig. 1 is a schematic diagram of the battery pack diagnosis device of the electric vehicle according to the present invention.
In the figure, 1-storage equipment, 2-fault diagnosis unit, 3-balance control unit, 4-CAN communication unit, 5-touch display screen, 6-OBD interface, 7-battery pack communication interface, 8-built-in power supply, 9-power consumption measurement unit, 10-12V/24V power supply interface, 11-insulation monitoring unit and 12-insulation detection interface.
Detailed Description
In the following embodiments, bms (battery Management system) refers to a battery Management system, and is generally located inside a battery pack to manage battery voltage, temperature, and charge/discharge current. The battery pack is formed by connecting lithium batteries in series and parallel, and provides electric energy for the electric automobile. SOC is called State of Charge, the State of Charge of the battery, also called the remaining capacity, and represents the ratio of the remaining dischargeable capacity to the capacity in its fully charged State after the battery has been used for a period of time or left unused for a long time, and is usually expressed in percentage.
The utility model relates to an electric automobile battery package diagnostic device that typical embodiment provided, including storage equipment 1, failure diagnosis unit 2, balanced the control unit 3 and CAN communication unit 4.
The electric vehicle battery pack diagnostic apparatus provided in the present embodiment is configured with the storage device 1 to implement the function of online upgrade of the battery management system. The storage device 1 is used for storing new battery management system software, automatically upgrading the battery management system software in the battery pack, and calibrating parameters by modifying a configuration file. The storage device 1 is a U disk or an SD card. Parameter calibration CAN be carried out through a U disk or an SD card, and related data CAN be copied from CAN message data sent by the BMS through a diagnostic device for subsequent data storage and data analysis.
The embodiment is provided with the touch display screen 5, and the touch display screen 5 is connected with the fault diagnosis unit 2, the balance control unit 3 and the CAN communication unit 4 for data display and man-machine interaction. Specifically, the touch display screen 4 is used for displaying specific faults or data, and can perform parameter setting and human-computer interaction. Parameters such as voltage information and SOC information of the battery pack are displayed on the diagnostic device in the form of a graph.
The fault diagnosis unit 2 is used for reporting abnormal data of the battery pack on one hand and reading specific battery information of the battery pack on the other hand. Specifically, the failure diagnosis is divided into two modes, first, autonomous analysis is possible, the diagnosis apparatus automatically analyzes, and some important parameter information is set in the diagnosis apparatus in advance, for example: the parameters related to the normal state of the battery pack are set in the diagnostic device. When the related data of the battery pack is abnormal and is not in the normal parameter range, the problem information is directly reported through the diagnosis device, and the method is suitable for simpler personnel with less faults and experience. And secondly, information such as specific battery information, monomer voltage, temperature, current and the like can be read, field problem analysis is carried out, and the method is suitable for complex faults. And the information such as the unit voltage, the temperature, the SOC and the like can be displayed in a chart form, so that research and development personnel can analyze the problems conveniently.
The balance control unit 3 is used for carrying out balance setting on any string of electric cores. Through the equalization protocol of the battery management system, equalization setting is carried out on any string of battery cores, the battery to be controlled can be operated through the diagnosis device, specific equalization voltage parameters can be set, and real-time data monitoring operation is carried out.
The storage device 1, the fault diagnosis unit 2, the balance control unit 3 and the touch display screen 5 are all connected with the CAN communication unit 4.
The CAN communication unit 4 is used for being connected with a finished automobile CAN network and reading data of a battery pack, and is provided with an OBD interface 6 and a battery pack communication interface 7.
The utility model discloses be equipped with multiple interface and pencil, support OBD interface 6, this kind of mode is the simplest and most convenient, can accomplish the operation in the driver's cabin. The battery pack communication wiring harness is supported, the battery pack can be separated from the whole vehicle network, the diagnosis device and the battery pack can be used for one-to-one diagnosis, and the problem analysis is more accurate. The power supply to the diagnostic device may be performed using a 12V battery built in the diagnostic device, or may be performed using 12V at the OBD interface 6.
The utility model discloses can also to battery package relay control, see battery package relay's state in real time through the diagnostic device that can touch the screen operation, can set up the relay switch in the battery package.
In one embodiment, the system further comprises a built-in power supply 8 and a power consumption measuring unit 9, wherein the built-in power supply is a 12V battery and is used for providing 12V or 24V power supply for loads including a battery management system; the power consumption measuring unit 9 is connected with the built-in power supply 8 and is provided with a 12V/24V power supply interface 10, the vehicle-mounted battery can still operate when the problem occurs, the power consumption of the load can be measured while power is supplied, the fault diagnosis is assisted, if the power consumption is too large, the situation that hardware faults exist in the vehicle-mounted battery is indicated, and a basis is provided for fault diagnosis.
In another embodiment, the device further comprises an insulation monitoring unit 11, wherein the insulation monitoring unit is used for performing insulation detection on the battery pack and measuring the insulation resistance value of the battery pack; the insulation detection unit 11 is provided with an insulation detection interface 12. Firstly, the battery pack is ensured not to leak electricity, and then functions such as fault diagnosis and the like are carried out, so that the safety of field personnel is ensured.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The utility model provides an electric automobile battery package diagnostic device which characterized in that: the device comprises a storage device, a fault diagnosis unit, a balance control unit and a CAN communication unit;
the storage device is used for storing new battery management system software, automatically upgrading the battery management system software in the battery pack and calibrating parameters by modifying the configuration file;
the fault diagnosis unit is used for reporting abnormal data of the battery pack on one hand and reading specific battery information of the battery pack on the other hand;
the balance control unit is used for carrying out balance setting on any one string of the electric cores;
the storage equipment, the fault diagnosis unit and the balance control unit are all connected with the CAN communication unit;
the CAN communication unit is used for being connected with a finished automobile CAN network and reading data of a battery pack, and is provided with an OBD interface and a battery pack communication interface.
2. The electric vehicle battery pack diagnostic apparatus according to claim 1, characterized in that: the storage device is a U disk or an SD card.
3. The electric vehicle battery pack diagnostic apparatus according to claim 1 or 2, characterized in that: the system comprises a touch display screen which is connected with a fault diagnosis unit, a balance control unit and a CAN communication unit for data display and man-machine interaction.
4. The electric vehicle battery pack diagnostic apparatus according to claim 3, characterized in that: the power supply also comprises a built-in power supply and a power consumption measuring unit, wherein the built-in power supply is used for providing 12V or 24V power supply for loads including a battery management system; the power consumption measuring unit is connected with a built-in power supply and is provided with a 12V/24V power supply interface.
5. The electric vehicle battery pack diagnostic apparatus according to claim 4, wherein: the insulation monitoring unit is used for carrying out insulation detection on the battery pack and measuring the insulation resistance value of the battery pack; the insulation detection unit is provided with an insulation detection interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866416.6U CN211148867U (en) | 2019-11-01 | 2019-11-01 | Battery pack diagnostic device for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866416.6U CN211148867U (en) | 2019-11-01 | 2019-11-01 | Battery pack diagnostic device for electric vehicle |
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| Publication Number | Publication Date |
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| CN211148867U true CN211148867U (en) | 2020-07-31 |
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| CN201921866416.6U Active CN211148867U (en) | 2019-11-01 | 2019-11-01 | Battery pack diagnostic device for electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114035108A (en) * | 2021-10-25 | 2022-02-11 | 深圳市道通科技股份有限公司 | Electric leakage diagnosis device and method |
| CN114265387A (en) * | 2021-12-16 | 2022-04-01 | 江西五十铃汽车有限公司 | Vehicle-mounted fault diagnosis system |
-
2019
- 2019-11-01 CN CN201921866416.6U patent/CN211148867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114035108A (en) * | 2021-10-25 | 2022-02-11 | 深圳市道通科技股份有限公司 | Electric leakage diagnosis device and method |
| CN114265387A (en) * | 2021-12-16 | 2022-04-01 | 江西五十铃汽车有限公司 | Vehicle-mounted fault diagnosis system |
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