Battery management method and device and vehicle

A battery management and battery technology, applied in the fields of vehicles and computer-readable storage media, devices, and battery management methods, can solve problems such as large safety risks and accelerated battery aging

Active Publication Date: 2021-03-30
GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD +1
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  • Summary
  • 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

[0046] 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.

[0047] 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:

[0048] Step 101, acquiring battery state parameters of the electric vehicle.

[0049] 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.

[0050] The battery state parameters may include, but are not limited to, one or more of the state parameters such as the t...

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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 obtaining a battery state parameter of the electricvehicle; if the battery state parameter is between a first preset threshold value and a second preset threshold value, determining a first charging upper limit parameter corresponding to the first preset threshold value and a second charging upper limit parameter corresponding to the second preset threshold value; and determining a target charging upper limit parameter according to the first preset threshold value, the second preset threshold value, the first charging upper limit parameter and the second charging upper limit parameter. According to the technical scheme, the interval range where the target charging upper limit parameter is located is determined according to the interval range where the battery state parameter is located, and the target charging upper limit parameter is linearly reduced along with the increase of the battery state parameter in the corresponding interval range, so that a user does not perceive the endurance change of the whole vehicle; and different charging upper limit parameters can be set in each stage of the battery, so that the attenuation speed of the service life of the battery is reduced, and the safety risk is reduced.

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): B60L58/12B60L53/00
CPCB60L58/12B60L53/00Y02T10/7072Y02T90/14
Inventor 胡孟杰
Owner GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD
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