Battery control method and system and electric vehicle

A battery control method and battery controller technology, which can be applied to electric vehicles, battery/fuel cell control devices, secondary battery charging/discharging, etc., and can solve the problem of fast discharging speed

Active Publication Date: 2018-03-20
NINGBO WEIJI ELECTRIC POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the charging speed of the supercapacitor is fast, the discharge speed is also fast

Method used

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  • Battery control method and system and electric vehicle
  • Battery control method and system and electric vehicle
  • Battery control method and system and electric vehicle

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Embodiment Construction

[0056]The technical problems solved by the embodiments of the present invention, the technical solutions adopted and the technical effects achieved are clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other equivalent or obviously modified embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the invention can be embodied in many different ways as defined and covered by the claims.

[0057] It should be noted that, in the following description, many specific details are given for the convenience of understanding. It may be evident, however, that the present invention may be practiced without these specific details.

[0058] It should be not...

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Abstract

The invention discloses a battery control method and system and an electric automobile. The battery comprises a super-capacitor pack and a lithium battery pack which are controlled by a battery controller and electrically connected. The battery control method includes the steps that battery influence factors are obtained; the battery influence factors are dispersed into X sub-states, wherein X is an integer; based on the partial observable Markov decision-making process, a first natural state and a second natural state comprising the sub-states of the battery influence factors are determined; and when it is confirmed that the benefit generated by transferring from the first natural state to the second natural state is the maximum value, operation of transferring from the first natural state to the second natural state is executed, and therefore the charging and discharging processes between the super-capacitor pack and the lithium battery pack are controlled through the battery controller. By the adoption of the method and system, the technical problem of how to effectively control the charging and discharging processes of batteries is at least partially solved.

Description

technical field [0001] Embodiments of the present invention relate to the field of battery technology, and in particular, to a battery control method and system and an electric vehicle. Background technique [0002] New energy vehicles refer to the adoption of new power sources, leading to new power control and drive technologies, and the formation of new structural vehicles with advanced technical principles. Among them, pure electric vehicles relying on lithium battery packs as a power source have been widely developed both at home and around the world. [0003] There are various technical challenges that are quite difficult in the development of new energy vehicles, especially the mainstream electric vehicles. Among them, the core technical challenge is the battery pack management system of electric vehicles. Improper battery charge management can lead to serious consequences, such as battery overcharging. [0004] The key to solving the problem of battery explosion ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/18H01M10/44
CPCB60L58/21H01M10/44Y02E60/10Y02T10/70
Inventor 胡师彦王爱吉吴伟宗
Owner NINGBO WEIJI ELECTRIC POWER TECH
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