Hybrid vehicle thermal management system and management method

Abstract

The invention provides a heat management system and management method for a hybrid electric vehicle, including an engine cooling circuit, a battery cooling circuit and a motor cooling circuit, wherein: the engine cooling circuit includes a high-temperature radiator, an engine cooling water pump, an engine cooling and the first multi-port valve, the high-temperature radiator and the engine cooling water pump are used to dissipate heat for the engine; the battery cooling circuit includes a second multi-port valve and the battery; the motor cooling circuit includes a low-temperature radiator and a second electronic water pump that are connected in sequence and form a loop , motor controller, motor and the third multi-way valve, the low temperature radiator and the second electronic water pump are used to dissipate heat for the motor, and the motor controller is used to detect the operating condition of the motor; the engine cooling circuit, battery cooling circuit and motor cooling circuit pass through the first A multi-port valve, a second multi-port valve, and a third multi-port valve are coupled to each other to transfer thermal energy between the engine cooling circuit, the battery cooling circuit, and the electric motor cooling circuit.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a heat management system and a management method for a hybrid electric vehicle. Background technique [0002] Compared with traditional fuel vehicles, hybrid electric vehicles (HEVs) have more heat sources and larger temperature spans. With the deepening of hybrid power, the heat management requirements of power batteries cannot be ignored. In order to better To coordinate the heat in the HEV and improve the energy efficiency of the whole vehicle, further optimization of the thermal management system is required. A complete thermal management solution needs to involve engine controller (EMS), vehicle controller (VCU), battery management system (BMS), and the system is complex. Therefore, OEMs are now choosing more independent cooling systems. In order to utilize the limited energy of vehicles more efficiently, it is necessary to reasonably couple and utilize the ther...

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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