Efficient integrated water-cooling hybrid electric vehicle thermal management system

Abstract

The invention discloses an efficient integrated water-cooling hybrid electric vehicle thermal management system. The system comprises a high-temperature water cooling system, a low-temperature water cooling system, an air conditioning system and a battery thermal management system. The high-temperature water cooling system comprises a high-temperature radiator, an engine, a fan, a water heater, a first electronic water pump, a first three-way electromagnetic valve and a plate heat exchanger, and the low-temperature water cooling system comprises a low-temperature radiator, a second electronic water pump, a second three-way electromagnetic valve, a motor assembly, a water-cooling condenser and a water-cooling intercooler. The air conditioning system comprises an electric compressor, a thermostatic expansion valve, an evaporator, an electronic expansion valve and a battery cooler. The battery thermal management system comprises a power battery and a third electronic water pump. The four systems can be mutually coupled for heat exchange, system energy is fully utilized, and energy consumption is reduced to the maximum extent. And the whole thermal management system dissipates heat with the environment only through the high-temperature radiator and the low-temperature radiator at the front end of the engine, so that the integration of the system and arrangement of a front-end module are facilitated.

Description

technical field [0001] The present application relates to the technical field of new energy vehicles, and in particular, relates to a high-efficiency integrated water-cooled hybrid vehicle thermal management system. Background technique [0002] Hybrid Vehicle (Hybrid Vehicle) refers to a vehicle whose drive system is composed of two or more single drive systems that can operate simultaneously. It is an important branch of new energy vehicles. A balance is reached among the other factors. In order to respond to the needs of users, hybrid vehicles are becoming more and more common in the market. A hybrid vehicle includes two sets of power systems, an engine and a motor. With different power modes, it can reflect three different driving modes: pure electric, hybrid, and fuel. [0003] Since the power system of hybrid electric vehicles is larger than that of traditional fuel vehicles, the complexity of its thermal management system will also increase. Power batteries, motors ...

AI Technical Summary

Problems solved by technology

[0003] Since the power system of a hybrid vehicle is larger than that of a traditional fuel vehicle, the complexity of its thermal management system will also increase. Power batteries, motors and high-voltage accessories all need to design a separate thermal management system to ensure normal operation. , the number of heat exchangers arranged at the front grille may be doubled (from 2-3 in traditional cars to 4-5), which puts forward higher requirements for the layout of front-end modules

At the same time, the complexity of the thermal management system increases, and the energy consumption of water pumps, compressors, fans, etc. in the system will also increase. The increase in energy consumption of these components will reduce the actual battery life of the power battery.

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