Control method for cooling system of hybrid vehicle

Abstract

The invention relates to a method for controlling a cooling system of a hybrid vehicle, which can reasonably control operating conditions of an electronic water pump and a fan, guarantee that the system is operated within a high-efficiency section, and guarantee the safety of the system. The method for controlling the cooling system of the hybrid vehicle adopts the technical proposal that the electronic water pump, a motor water jacket, a hybrid controller and a radiator form a loop; the electronic water pump makes a liquid coolant flow in the loop; and the fan performs heat dissipation on the liquid coolant which flows through the radiator. The method for controlling the cooling system of the hybrid vehicle is characterized in that a control module of the cooling system controls the on / off of the electronic water pump and the fan according to the temperature of a motor stator and the temperature of an inverter in the hybrid controller.

Description

technical field [0001] The invention relates to a control method for a cooling system of a hybrid 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. In the automobile industry, people are more committed to the research and development of clean and environmentally friendly electric vehicles while improving fuel vehicles. Hybrid vehicles and pure electric vehicles are attracting more and more attention, but the power source of electric vehicles - the power battery pack is the most expensive part of vehicle production, and it is also an important factor limiting the mileage of electric vehicles, which largely depends on the development of batteries The pure electric vehicle has not made a major breakthrough in the develo...

AI Technical Summary

Problems solved by technology

[0003] At present, the parallel structure commonly used in moderate hybrid power has two power sources, the engine and the motor, the hybrid power controller HCU and the added power source motor are hybrid power components, because the hybrid power system components motor and controller are in the working process A large amount of heat will be generated, and the accumulation of heat will cause the temperature to rise. When the temperature is higher than the normal operating range of the components, the working efficiency of the motor and the controller will decrease as the temperature rises, which will affect the performance and safety of the hybrid system itself and the entire vehicle system. , resulting in system inefficiency and potential safety hazards

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