Thermal management system and method for pure electric vehicle

A pure electric vehicle and thermal management system technology, applied in the field of electric vehicles, can solve the problems of low intake air volume of front-end modules, increased energy consumption, and reduced performance of air conditioning systems, so as to avoid NVH complaints, reduce power consumption, and reduce pressure. Effect
CN113147323AActive Publication Date: 2021-07-23VOYAH AUTOMOBILE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
VOYAH AUTOMOBILE TECH CO LTD
Publication Date
2021-07-23

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Abstract

The invention relates to a thermal management system and method for a pure electric vehicle, and relates to the technical field of electric vehicles. The thermal management method for the pure electric vehicle comprises the steps that firstly, operation parameters of the electric vehicle are obtained, the electric vehicle is driven to be switched between a first working mode and a second working mode according to the operation parameters, when the electric vehicle is in the first working mode, a refrigerant loop is opened, a warm air cooling liquid loop is closed, the refrigerant loop is used for refrigerating a passenger compartment of the electric automobile, and when the electric vehicle is in the second working mode, the refrigerant loop and the warm air cooling liquid loop are started at the same time, and motor radiators on the refrigerant loop and the warm air cooling liquid loop are used for refrigerating the passenger compartment of the electric automobile together. According to the thermal management method for the pure electric vehicle, the problems that the outdoor heat exchanger is insufficient in heat exchange capacity and the air conditioning system is high in pressure are solved when the air conditioner is cooled, the supercooling degree of the air conditioning system is increased, and the pressure of the air conditioning system is reduced.
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Description

technical field

[0001] The present application relates to the technical field of electric vehicles, in particular to a thermal management system and method for pure electric vehicles. Background technique

[0002] Due to the emphasis on energy consumption of electric vehicles, the influence of heating and cooling of electric vehicles on battery life has gradually increased in the industry. In the industry, models using heat pump technology on pure electric vehicles have begun to be applied to many models, and With the improvement of demand and performance requirements, the complexity of the thermal management system is also becoming more and more complex. Some high-end models are also equipped with motor waste heat recovery and utilization functions to achieve the purpose of heating the battery or the passenger compartment with waste heat from low-temperature motors. .

[0003] At present, the key tasks and ideas in the process of air conditioning cooling and energy consump...

Claims

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