Whole vehicle thermal management system and method based on hybrid electric vehicle

Abstract

The invention discloses a whole vehicle thermal management system and a method based on a hybrid electric vehicle. The system comprises a compressor, an expander, a heat exchanger, a water tank, a pump, a radiator, an engine and a valve, through controlling the on-off of the valve, different operation modes can be adjusted; battery management, waste heat recovery and combination of an air conditioner / heat pump system are realized; the requirements of refrigeration and heating of an air conditioner and heat dissipation and preheating of an engine and a battery are met; individual working conditions do not influence each other, individual completion, the waste heat recovery system, the air conditioner / heat pump system, the air conditioner / heat pump system and the battery management system are coupled at the same time, waste heat recovery is met, the refrigerating / heating requirement can be met at the same time, the requirement that the air conditioner / heat pump system refrigerates and cools the battery pack is met, and the heat management requirement of the hybrid electric vehicle under different driving working conditions is met. The whole system is high in integration degree and suitable for various working conditions, and the energy utilization efficiency of the whole vehicle can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of thermal management of hybrid electric vehicles, and in particular relates to a thermal management system and method for a complete vehicle based on hybrid electric vehicles. Background technique [0002] In recent years, countries around the world have become more and more strict on environmental protection. Hybrid vehicles have become a focus of automobile development and research due to their advantages of energy saving and low emissions, and have begun to be commercialized. The core of this technology is to learn from each other and match each other under different working conditions, so that the car can run in the high-efficiency range for a long time, and at the same time, it takes advantage of the long-term continuous working time of the engine, the advantages of good power and the pollution-free electric motor. The advantage of low noise. Engine waste heat recovery technology is also being continu...

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Problems solved by technology

[0005] To deal with the defects of the existing thermal management technology of hybrid electric vehicles, the purpose of the present invention is to provide a thermal management system and method based on hybrid electric vehicles, which can effectively solve the thermal problems of most current hybrid electric vehicles. The integration of the management system is low, the space utilization rate of the car is low, the working conditions are limited, and the heat is not well distributed and utilized, etc.

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