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Whole vehicle thermal management method, system and device of electric vehicle and storage medium

A technology of electric vehicles and management methods, which is applied to electric vehicles, electric devices, battery/fuel cell control devices, etc., and can solve the problems of low thermal management efficiency of the whole vehicle and slow heat dissipation of power batteries

Active Publication Date: 2020-07-10
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a vehicle thermal management method, system, device, and storage medium for an electric vehicle to solve the problems of slow power battery heat dissipation and low thermal management efficiency of the vehicle in the prior art

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  • Whole vehicle thermal management method, system and device of electric vehicle and storage medium
  • Whole vehicle thermal management method, system and device of electric vehicle and storage medium
  • Whole vehicle thermal management method, system and device of electric vehicle and storage medium

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047]The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a particular order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstance...

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Abstract

The embodiment of the invention provides a whole vehicle thermal management method, system and device for an electric vehicle and a storage medium. The method comprises the steps: controlling a battery auxiliary loop main contactor of a BMS to be closed if a charging instruction transmitted by the BMS is received; controlling a main contactor of a direct current converter DCDC and a main contactorof an air conditioning system to be closed to enables the DCDC and the air conditioning system to be powered on; controlling the DCDC to start to work so as to provide power for a battery cooling water pump and a motor cooling water pump; receiving a request mode sent by the BMS in the charging process; and controlling the working states of the battery cooling water pump, a power battery, the airconditioning system and the motor cooling water pump according to the request mode. According to the embodiment of the invention, rapid cooling of the power battery can be realized to ensure that thepower battery is safer in the charging process, and the thermal management efficiency of the whole vehicle can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electric vehicles, and in particular to a vehicle thermal management method, system, device and storage medium for electric vehicles. Background technique [0002] With the development of pure electric vehicles, the safety of power batteries has become increasingly prominent. When the power battery is thermally charged or collided, it is easy to cause thermal runaway and cause the power battery to smoke, catch fire or even explode. At the same time, the energy density and service life of the power battery will also be affected by temperature changes. Therefore, It is very important to thermally manage the traction battery while it is charging. [0003] In related technologies, the widely used battery thermal management method is air-cooled heat dissipation technology, the principle of which is mainly to take away the heat generated by the battery through a heat dissipation fan, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/26B60L58/27B60L1/00B60L58/10B60L3/00B60H1/00H01M10/613H01M10/625H01M10/633H01M10/6567
CPCB60L58/26B60L58/27B60L1/003B60L58/10B60L3/003B60H1/00392H01M10/613H01M10/625H01M10/633H01M10/6567Y02T10/70Y02E60/10
Inventor 张超吴学强袁文文郭庆光张强刘丙龙
Owner WEICHAI POWER CO LTD
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