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A thermal management system and working method for a power battery of an lng hybrid electric vehicle

A hybrid electric vehicle, battery management system technology, applied in electric vehicles, secondary batteries, battery temperature control, etc.

Active Publication Date: 2020-10-23
ZHONGTONG BUS HLDG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the lack of power and efficiency caused by the impact of the environment on the power battery system of the LNG plug-in hybrid electric vehicle with the largest market promotion in the high temperature and cold area, the present invention provides a thermal management system for the power battery of the LNG hybrid electric vehicle System and working method. This system realizes the effective control of the ambient temperature of the power battery system by reusing the waste energy on the vehicle and at the same time without increasing the excessive cost of the vehicle, so as to ensure that the vehicle is kept at high temperature. The normal operation in the alpine region also achieves the efficient energy saving and emission reduction effect of the vehicle

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  • A thermal management system and working method for a power battery of an lng hybrid electric vehicle

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0043] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or c...

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Abstract

The invention discloses a thermal management system for a power battery of an LNG hybrid electric vehicle, which realizes the control of the battery core temperature in the power battery system by utilizing the waste heat generated during the operation of the vehicle engine and the low-temperature characteristics of the gas supply pipeline of the LNG gas storage system. Adjustment, so as to ensure that the power battery system can work in a relatively stable temperature environment. Relying on the traditional components of the whole vehicle, and through the idea of ​​realizing integrated design, the present invention innovates and researches the use of the excess energy of the whole vehicle to realize the self-temperature regulation of the power battery system, which realizes the reuse of waste energy and improves the efficiency of new energy. The environmental adaptability of the bus also greatly improves the efficiency and service life of the power battery.

Description

technical field [0001] The invention belongs to the field of design and manufacture of new energy vehicles, and in particular relates to a thermal management system and working method of a power battery of an LNG hybrid vehicle. Background technique [0002] At present, the country's requirements and policies for energy conservation and emission reduction are increasing unprecedentedly. In the field of automobiles, the withdrawal of fuel vehicles from the market has accelerated, while energy-saving LNG vehicles and new energy vehicles, which have significant effects on energy conservation and emission reduction, have become national key promotion products. Due to the impact of the technical capabilities of vehicle power batteries, new energy vehicles are faced with the embarrassing situation that vehicles cannot run in high-cold and high-temperature areas during the actual promotion and application process. [0003] Vehicle power battery systems have high requirements in th...

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Application Information

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IPC IPC(8): B60L58/24B60H1/00B60H1/02B60H1/18H01M10/613H01M10/625H01M10/6567H01M10/66
CPCH01M10/613H01M10/625H01M10/6567H01M10/66Y02E60/10Y02T10/70
Inventor 李晨薛守飞赵永刚王波张刚
Owner ZHONGTONG BUS HLDG
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