Thermal management system and control method of hybrid vehicle

Abstract

The invention discloses a heat management system for a hybrid power vehicle and a control method of the heat management system. The heat management system comprises a motor radiator, a supply unit, a power electronic device, a motor driving unit, an engine radiator, an engine and an air conditioner system, wherein the motor radiator, the supply unit, the power electronic device and the motor driving unit are sequentially connected by first pipelines, and the motor driving unit is connected to the motor radiator by a second pipeline, so as to form a first circulating loop; the engine radiator, the engine and the air conditioner system are sequentially connected by third pipelines, and the air conditioner system, the engine and the engine radiator are sequentially connected by fourth pipelines, so as to form a second circulating loop; a first branched pipeline and a second branched pipeline at the downstream of the first branched pipeline are arranged on each second branched pipeline; the first branched pipelines connects the second pipelines with the third pipelines; and the second branched pipelines connects the second pipelines with the fourth pipelines. By adopting the heat management system for the hybrid power vehicle, the more efficient heat management can be carried out to the engine and an electric device.

Description

technical field [0001] The invention relates to the technical field of motor vehicles, in particular to a heat management system and a control method of a hybrid vehicle. Background technique [0002] The gasoline-electric hybrid vehicle can improve the combustion efficiency of the engine by properly controlling the torque and rotation speed of the electric motor. In recent years, hybrid vehicles have received increasing attention in consideration of environmental issues. [0003] figure 1 A schematic diagram showing the cooling system of an existing deep hybrid vehicle. Such as figure 1 As shown, the existing deep hybrid vehicle cooling system 200 includes a first radiator 16, a pump 12, an electric device 14, a second radiator 52, an engine 20 and a heater 24, wherein the first circulation pipeline 10 will The pump 12, the electric device 14 and the first radiator 16 are in communication, and the pump 12 drives the coolant to circulate through the first circulation pip...

AI Technical Summary

Problems solved by technology

[0008] The main technical problem to be solved by the present invention is to provide a thermal management system and its control method for a hybrid vehicle to solve the problem of effective thermal management of the engine and electric devices

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