Battery management method and device and vehicle

A battery management and battery technology, applied in battery circuit devices, circuit devices, battery/fuel cell control devices, etc., can solve the problems of accelerated battery aging, major safety risks, etc., to slow down the aging speed, accurately and efficiently determine, and reduce safety. effect of risk
CN112622693AInactive Publication Date: 2021-04-09GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD
Publication Date
2021-04-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention provides a battery management method and device and a vehicle. The battery management method comprises the steps of firstly obtaining battery state parameters; comparing the battery state parameters with a plurality of aging parameter thresholds to determine a target aging grade of the battery; and then determining a target charging and discharging parameter corresponding to the target aging level according to a pre-stored corresponding relationship between the aging level and the charging and discharging parameter. According to the technical scheme, the target charging and discharging parameters are determined according to the target aging level, and different charging and discharging parameters can be adopted in each aging stage of the whole life cycle of the battery, so that the aging speed of the battery is reduced to a certain extent, and the safety risk caused by aging is reduced; in addition, the battery state parameters are respectively compared with a plurality of aging parameter thresholds, so that the aging grade of the battery can be determined more accurately and efficiently.
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Description

technical field

[0001] The present application relates to the technical field of batteries, in particular to a battery management method, device, vehicle and computer-readable storage medium. Background technique

[0002] For new energy vehicles, especially pure electric vehicles, power batteries are the main source of power. Power battery safety has become a top priority for pure electric vehicles. Power battery safety is reflected in many aspects, among which battery aging is one of the important factors affecting battery safety.

[0003] At present, battery life is one of the most important factors for users to evaluate the performance of electric vehicles. Based on the existing technology and materials, it is very difficult to develop a battery with a higher capacity, and the restrictions on the weight and space of the vehicle cannot be broken. In a fixed space, that is, the number of batteries is fixed, in order to meet the user's battery life. Expanding the battery ...

Claims

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