Method for controlling cooling system of electric automobile

Abstract

The invention discloses a method for controlling a cooling system of an electric automobile, which comprises the following steps: detecting the temperature of a motor stator and the temperature of an inverter through an entire automobile controller, comparing the temperatures with the set temperature threshold of the motor rotor for turning on an electronic water pump, the temperature threshold of the inverter for turning on the electronic water pump, the temperature threshold of the motor stator for turning off the electronic water pump, the temperature threshold of the inverter for turning off the electronic water pump, the temperature threshold of the motor rotor for turning on a fan, the temperature threshold of the inverter for turning on the fan, the temperature threshold of the motor rotor for turning off the fan, and the temperature threshold of the inverter for turning off the fan, and controlling the working conditions of the water pump and the fan according to the comparison results. By using the control method, the working conditions of the electronic water pump and the fan can be controlled reasonably, and the system can be ensured to work in a high-efficiency interval, thus the working safety of the system is greatly improved.

Description

technical field [0001] The invention is designed in the field of electric vehicles, specifically a method for realizing the control of the cooling system of the electric vehicle. Background technique [0002] At the present stage of social development, under the situation that energy crisis and environmental pollution have become important obstacles to global development, energy-saving and environmental protection products have become a hot topic in all walks of life. Especially in the automotive industry, people are more committed to the research and development of clean and environmentally friendly vehicles while improving fuel vehicles. Hybrid vehicles and pure electric vehicles are increasingly being paid attention to by people. Due to the limitation of cost and battery technology, it was once considered an unfeasible solution, so the research of hybrid power has once become the focus of attention of various automobile manufacturers. However, in recent years, with the d...

AI Technical Summary

Problems solved by technology

Excessive temperature has certain harm to the components themselves and the whole system, and when the temperature is higher than a certain value, the working efficiency of the motor and inverter will decrease as the temperature rises

In addition, during the driving and energy recovery process of electric vehicles, the motor itself and the AC / DC inverter will also generate a lot of heat, and the accumulation of these heat will increase the danger of the system.

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