Electric Vehicle Thermal Management System

A thermal management system and electric vehicle technology, applied in the field of electric vehicles, can solve problems such as complex system control strategies, complex thermal management design, and low reliability, and achieve the goal of avoiding control logic and diagnosis, simple structure, and convenient maintenance and management Effect
CN107323285BActive Publication Date: 2021-06-29奇瑞新能源汽车股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
奇瑞新能源汽车股份有限公司
Publication Date
2021-06-29

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Abstract

The invention discloses a heat management system for an electric vehicle, which belongs to the field of electric vehicles. The electric vehicle thermal management system includes an electric drive cooling circuit, an air-conditioning circuit and a battery thermal management circuit, and the heat exchangers are respectively connected to the main branch of the battery thermal management circuit and the heat exchange branch in the air-conditioning circuit, so that the air-conditioning circuit and the The battery thermal management circuit can realize heat exchange, and can distribute the heat in the system no matter when the vehicle is running or charging, and realize the unified thermal management of the electric drive device, air conditioner and battery device. At the same time, the system reduces The water valve, tee and other components are eliminated, the structure is simple, and complex control logic and diagnosis are avoided, making later maintenance and management more convenient.
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Description

technical field

[0001] The invention relates to the field of electric vehicles, in particular to a heat management system for electric vehicles. Background technique

[0002] In order to avoid damage caused by overheating of components caused by the accumulation of heat energy in the electric vehicle, and to provide a comfortable temperature in the cabin, it is necessary to dissipate heat from the operating components and transfer the heat energy of the vehicle air conditioner. Therefore, how to manage the heat energy distribution of electric vehicles is the current vehicle research. one of the directions.

[0003] The electric vehicle thermal management system in the prior art includes a power cooling unit, a heating and cooling air-conditioning unit, a heat exchange unit and a control unit. The heat exchange path is controlled and adjusted by the control unit to adjust the flow rate of the coolant in the power cooling unit, so that the heat dissipation capacity of the pow...

Claims

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