Control method and device of power battery pack and electric vehicle

A technology for power battery packs and electric vehicles, applied in the field of devices and control methods for power battery packs, capable of solving problems such as thermal runaway fires and explosions

Pending Publication Date: 2022-06-28
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a control method and device for a power battery pack and an electric vehicle, so as to solve the problems in the prior art caused by the defects of the power battery or other factors, even in the parking situation without collision or misoperation. Thermal runaway, fire or even explosion may occur

Method used

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  • Control method and device of power battery pack and electric vehicle
  • Control method and device of power battery pack and electric vehicle
  • Control method and device of power battery pack and electric vehicle

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Embodiment Construction

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0055] The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that embodiments of the application can be practiced in sequences other than those illustrated or described herein. In addition, "and / or" in the de...

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Abstract

The invention discloses a control method and device of a power battery pack and an electric automobile, and relates to the technical field of electric automobiles, a plurality of battery modules, a signal detector and a fire extinguishing pipeline are arranged in the power battery pack, the battery modules are connected with a fire extinguishing agent storage tank through the fire extinguishing pipeline, and the signal detector is connected with the fire extinguishing agent storage tank through the fire extinguishing pipeline. The method comprises the following steps: receiving environmental information in the power battery pack collected by a signal detector; obtaining current voltage information and temperature information of each battery module; and when it is determined that the power battery pack is in the thermal runaway state according to the environment information, the voltage information and the temperature information, the fire extinguishing agent storage tank is controlled to be opened. According to the scheme, the problem that thermal runaway fire and even explosion possibly occur even under the condition of parking without collision and misoperation due to the induction of defects of a mobile battery or other factors is avoided.

Description

technical field [0001] The present application relates to the technical field of electric vehicles, and in particular, to a control method and device for a power battery pack and an electric vehicle. Background technique [0002] In recent years, electric vehicles have developed rapidly, but at the same time, their safety issues have also attracted widespread attention from the society. At present, the new energy vehicle industry at home and abroad has insufficient awareness of safety in general, the safety accumulation of product design is not enough, and the safety interaction mechanism in the whole chain has not been formed, which has led to the frequent occurrence of electric vehicle safety accidents and many electric vehicle fire accidents in recent times. , which has a great negative impact on the development of the entire industry and related enterprises. [0003] At the same time, limited by the current level of battery technology, electric vehicles may be induced b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10A62C31/00A62C3/16
CPCB60L58/10A62C31/00A62C3/16B60L2240/547B60L2240/545Y02T10/70
Inventor 王昊盛军代康伟李兴华
Owner BEIJING ELECTRIC VEHICLE
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