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Battery management system and electric vehicle

A battery management system and power battery technology, applied in electric vehicles, battery/fuel cell control devices, vehicle components, etc., can solve the problems of large size and high cost of battery management systems

Active Publication Date: 2021-03-05
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This makes the battery management system costly and bulky

Method used

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  • Battery management system and electric vehicle
  • Battery management system and electric vehicle

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Embodiment Construction

[0020] 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.

[0021] figure 1 A schematic block diagram of a battery management system according to an embodiment of the present disclosure is shown. like figure 1 As shown, the battery management system includes a BMS main control module 1 and an analog front-end module 2, wherein the BMS main control module 1 includes a first bridge chip 11 and a main control chip 12, and the analog front-end module 2 is used to detect the single power battery battery information and transmit the single battery information to the main control chip 12 through the first bridge chip 11, and the main control chip 12 monitors the power battery based on the single battery information.

[00...

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Abstract

The invention relates to a battery management system and an electric vehicle, and aims to reduce the size of the battery management system and reduce the cost of the whole vehicle. The battery management system (BMS) comprises a BMS main control module and an analog front-end module, the BMS main control module comprises a first bridging chip and a main control chip. The analog front-end module isused for detecting single battery information of a power battery and transmitting the single battery information to the main control chip through the first bridging chip, and the main control chip monitors the power battery based on the single battery information.

Description

technical field [0001] The present disclosure relates to the field of electric vehicles, and in particular, relates to a battery management system and the electric vehicle. Background technique [0002] The Battery Management System (BMS) is used to monitor and control the reliable operation of the power battery. The existing BMS includes an analog front-end module and a BMS main control module. The analog front-end module includes a sampling module that collects the voltage and temperature of the single battery, a microcontroller that processes the information collected by the sampling module, and a power conversion module that supplies power to the microcontroller, and the microcontroller Communicate with the BMS main control module through the CAN bus. This makes the battery management system costly and bulky. Contents of the invention [0003] The purpose of the present disclosure is to provide a battery management system and an electric vehicle, which can not only ...

Claims

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Application Information

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IPC IPC(8): B60L58/10
CPCB60L58/10Y02T10/70
Inventor 凌和平谢朝武宽陈孝杰许盛世
Owner BYD CO LTD
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