Automotive thermal management method

Abstract

The invention discloses an automotive thermal management method. The automotive thermal management method comprises the following steps: a controller receives refrigerating requirement from a battery management system; the controller collects an environment temperature Te and a coolant temperature Tc in a working element thermal processing loop; and the controller performs analysis and treatment according to the collected environment temperature Te and coolant temperature Tc so as to cool the working elements through a radiator arranged on the working element thermal processing loop, and / or cool the working element through a heat exchanger which takes a refrigerating agent of an air conditioning system as a cold source. By adoption of the method, automotive energy consumption can be lowered effectively; and in addition, influence from the external environment temperature can be reduced in the thermal management process of the working elements.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile thermal management method. Background technique [0002] Under the pressure of energy shortage and environmental pollution, energy saving and environmental protection have become the consensus of the society. With the rapid development of the automobile industry, problems such as energy crisis and environmental pollution have become more prominent. Utilization rate and energy saving and emission reduction have more unique advantages than traditional vehicles, and have been valued at home and abroad. The development of electric vehicles will become the mainstream direction of future automobile development. As the core component of new energy vehicles, the safety of batteries is particularly important, and the electrochemical performance and cycle life of most batteries are significantly affected by temperature. If the temperature is too high, power batteries are ...

AI Technical Summary

Problems solved by technology

The air-cooled structure and control design are relatively simple, but there are problems such as obvious temperature gradient of the battery pack, uneven temperature field, long relaxation time of heat conduction, and only air cooling cannot meet the requirements

The liquid-cooled type uses liquid as the medium to manage the heat of the power battery. The liquid-cooled type is also divided into passive type and active type. The passive type refers to the battery cooling fluid flowing through the battery, transported by the water pump, and exchanging heat with the outside air through the radiator. The liquid-cooled passive type has a simple structure, low cost, and low energy consumption, but is greatly affected by the external environment temperature; the active type refers to the heat exchange between the battery coolant and the external environment mainly through the combination of the air-conditioning refrigerant system. Ambient temperature has little effect, but it increases battery energy consumption

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