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Battery management system and control method therefor

A battery management system and battery control technology, applied in battery/fuel cell control devices, battery circuit devices, current collectors, etc., can solve the problems of low safety of battery management systems

Inactive Publication Date: 2016-03-23
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Embodiments of the present invention provide a battery management system and its control method, so as to at least solve the technical problem of relatively low security of the battery management system

Method used

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  • Battery management system and control method therefor

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Embodiment Construction

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0020] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a battery management system and a control method therefor. The battery management system comprises: a battery control unit used for outputting a control signal; a relay used for controlling the on or off state of a high-voltage relay loop according to the control signal; and a latch control module connected between the battery control unit and the relay and used for detecting a working state of the relay and latching the current working state of the relay when a control loop of the battery control unit has a fault. According to the battery management system and the control method, the technical problem of relatively low security of the battery management system is solved.

Description

technical field [0001] The present invention relates to the field of batteries, in particular to a battery management system and a control method thereof. Background technique [0002] The design of the battery system is the biggest technical problem for current electric vehicles, which determines the safety and performance of each electric vehicle. Among them, the battery management system (BMS) is the key to the success of the battery system, and its quality affects the life, safety and reliability of lithium batteries. performance and power supply / charging efficiency. If the battery management system fails, it may cause system failure and even bring danger to the driving of the vehicle. Especially for the high-voltage system in the battery management system, the system is controlled by the high-voltage relay control circuit. The safety of the existing battery management system is relatively low. Once the high-voltage relay control circuit fails, the high-voltage system w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCB60L58/10H02J7/0063Y02T10/70
Inventor 秦兴权李党清梁瑞闫立国王长治
Owner BEIJING ELECTRIC VEHICLE
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