Electric vehicle thermal management system and thermal management method

Abstract

The invention discloses a thermal management system and a thermal management method for an electric vehicle. The system comprises an outside-vehicle heat management system, terminal equipment or a cloud platform and an electric vehicle. The external heat management system comprises an information processing module and external heat management equipment; the electric vehicle comprises a vehicle thermal management system, a power battery and a cabin. The vehicle thermal management system is used for acquiring thermal management information and sending the thermal management information to the terminal equipment or the cloud platform; the terminal equipment or the cloud platform is used for acquiring thermal management information sent by the vehicle thermal management system and controlling the external thermal management equipment to provide thermal management service for the power battery and the cabin; and the external thermal management system receives the thermal management information and provides thermal management service for the power battery and the cabin. According to the invention, thermal management can be carried out on the power battery and the cabin of the electric vehicle during parking, so that the power battery and the cabin can keep proper temperature, the service life of the power battery is prolonged, and the driving satisfaction of a user is improved.

Description

technical field [0001] The invention relates to the technical field of automobile batteries, in particular to a thermal management system and a thermal management method for an electric vehicle. Background technique [0002] When the temperature is high or low, it is necessary to conduct thermal management on the power battery and the cockpit of the car to help the power battery and the cockpit maintain a proper temperature and ensure the safety of the vehicle and a comfortable ride experience. At present, the power battery and cockpit thermal management are mainly powered by the power battery. [0003] During the driving process of the car, when the temperature is low, the current OEMs and power battery manufacturers usually use electric heating, air conditioning heat pump, PTC heating, motor coolant waste heat utilization, motor locked rotor pulse current heating and other methods to heat the battery box. Heating the cabin. These methods can work only when the remaining ...

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to solve the problem that the thermal management of the electric vehicle will accelerate the consumption of the power battery, reduce the service life of the power battery and reduce the user satisfaction when restarting after parking, and provide A thermal management system and thermal management method for an electric vehicle, capable of avoiding thermal runaway of a power battery, and at the same time preventing the thermal management system from malfunctioning due to insufficient remaining power of the power battery, thereby improving user driving satisfaction

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