Hybrid electric vehicle heat management system and management method

Abstract

The invention provides a hybrid electric vehicle heat management system and a management method. The hybrid electric vehicle heat management system comprises an engine cooling loop, a battery coolingloop and a motor cooling loop, the engine cooling loop comprises a high temperature radiator, an engine cooling water pump, an engine and a first multi-way valve which are connected in sequence and form a loop; the high temperature radiator and the engine cooling water pump are used for radiating the engine; the battery cooling loop comprises a second multi-way valve and a battery; the motor cooling loop comprises a low-temperature radiator, a second electronic water pump, a motor controller, a motor and a third multi-way valve which are connected in sequence to form a loop, the low-temperature radiator and the second electronic water pump are used for radiating heat for the motor, and the motor controller is used for detecting the operation condition of the motor; and the engine cooling loop, the battery cooling loop and the motor cooling loop are mutually coupled through the first multi-way valve, the second multi-way valve and the third multi-way valve, so that heat energy is converted among the engine cooling loop, the battery cooling loop and the motor cooling loop.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a heat management system and method for a hybrid electric vehicle. Background technique [0002] Compared with traditional fuel vehicles, hybrid electric vehicles (HEV) have more heat sources and a larger temperature span. With the deepening of hybrid power, the heat management requirements of power batteries cannot be ignored. In order to better Coordinating heat in HEVs and improving overall vehicle energy efficiency requires further optimization of thermal management systems. A complete thermal management solution needs to involve the engine controller (EMS), vehicle controller (VCU), battery management system (BMS), and the system is complex. Therefore, at present, vehicle manufacturers choose more independent cooling systems. In order to use the limited energy of vehicles more efficiently, it is necessary to reasonably couple and utilize the thermal energy of ne...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a heat management system and management method for a hybrid electric vehicle to solve the problem of low coupling and low efficiency of the existing heat management method for a hybrid electric vehicle

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