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System and method for monitoring battery cell fault and vehicle

A cell and fault technology, applied in the field of vehicles, can solve the problem of many safety accidents and achieve the effect of reducing safety accidents

Pending Publication Date: 2022-01-14
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the battery fails, there is no control or data record, resulting in many safety accidents

Method used

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  • System and method for monitoring battery cell fault and vehicle
  • System and method for monitoring battery cell fault and vehicle
  • System and method for monitoring battery cell fault and vehicle

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Embodiment Construction

[0027] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0028] First, the application scenarios of the present disclosure are described. This disclosure can be applied to the scene where the battery pack of the vehicle is monitored after the battery management system is dormant. At present, all electric vehicles need to install a vehicle remote monitoring vehicle terminal. The bus communicates with the vehicle battery management system, the vehicle controller and other controllers, obtains the data and fault information of each control system in real time, and then sends them to the remote monitoring platform (generally built by the government or the vehicle manufacturer). After receiving the vehicle data, it wil...

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Abstract

The invention relates to a system and method for monitoring a battery cell fault and a vehicle. The system comprises a main controller, a battery sampling module and a battery pack, and the battery sampling module is connected with the main controller and the battery pack respectively; the battery sampling module is used for collecting state information of the battery pack, awakening the main controller under the condition that the state information is determined to be in an abnormal state and the main controller is in a dormant state, and sending the state information to the main controller; and the main controller is used for receiving the state information of the battery pack sent by the battery sampling module after being awakened and outputting the state information. In other words, the battery sampling module awakens the main controller when determining that the collected state information of the battery pack is in an abnormal state, and outputs the state information through the main controller, so that when the battery management system is in a dormant state, the state of the battery pack can be monitored, and safety accidents can be reduced.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, in particular, to a system, method and vehicle for monitoring battery failures. Background technique [0002] Electric vehicles refer to vehicles powered by on-board power supplies and driven by electric motors. Because of their smaller impact on the environment than traditional vehicles, their prospects are widely optimistic. Pure electric vehicles generally have three working states: driving (discharging) state, charging state, and engine-off parking state. After the vehicle is in the engine-off and parking state, in order to save battery energy, almost all electrical equipment is turned off or dormant. [0003] When the vehicle is stopped for a long time, the battery management system is generally in a power-off or dormant state. In this case, the battery is completely out of control. When the battery fails, there is no control or data recording, resulting in many safety accidents. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/3835G01R31/396
CPCG01R31/3835G01R31/396
Inventor 凌和平潘华谢朝谢恩来伍家和
Owner BYD CO LTD