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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

Inactive Publication Date: 2021-04-09
GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For an aging battery, if it is still used in the same way as a new battery, the aging of the battery will be greatly accelerated, and it will also bring a great safety risk

Method used

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  • Battery management method and device and vehicle
  • Battery management method and device and vehicle
  • Battery management method and device and vehicle

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Experimental program
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Embodiment Construction

[0064] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0065] refer to figure 1 , which shows a flow chart of the steps of Embodiment 1 of a battery management method of the present application, which may specifically include the following steps:

[0066] Step 101, acquiring battery state parameters of the electric vehicle.

[0067] In a specific implementation, the battery state parameter may be obtained through a battery management system (Battery Management System, BMS). The battery management system is responsible for controlling the charging and discharging of the battery and realizing functions such as battery state estimation.

[0068] Battery status parameters may include, but are not limited to, the total mileage M of the electric vehicle, the bat...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/12B60L58/16G01R31/382G01R31/392
CPCB60L58/12B60L58/16G01R31/382G01R31/392H02J7/005H02J7/007182H02J7/00714H02J7/0048B60L53/11B60L58/14B60L58/15H01M10/44H01M2220/20H01M10/48H01M10/425H01M2010/4271H01M2010/4278Y02E60/10Y02T10/7072Y02T90/14Y02T10/70
Inventor 黄兰英王燕乐
Owner GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD
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