Whole automobile heat management system for hybrid power automobile

Abstract

The invention discloses a whole automobile heat management system for a hybrid power automobile. The whole automobile heat management system comprises a heat pump circulation loop, an engine heat management loop, a passenger cabin heat management loop, a motor heat management loop and a battery heat management loop, wherein the heat pump circulation loop comprises a compressor, a first heat exchanger, a heat exchanger, an evaporator and a second heat exchanger; the battery cooler is connected in parallel with the evaporator and is then connected with the second heat exchanger; the engine heat management loop comprises an engine, a first heat radiator and a first water pump; the motor heat management loop comprises a motor, a third water pump and a second heat radiator; the passenger cabin heat management loop comprises a hot air core body, a second water pump and a first heat exchanger; the battery heat management loop comprises a battery pack, a fourth water pump and a battery cooler. The system realizes the whole automobile heat management and reasonable distribution and utilization of the hybrid power automobile.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a heat management system for hybrid electric vehicles. Background technique [0002] With the occurrence of a series of environmental problems such as global warming, the gradual reduction of fossil energy, the destruction of the ozone layer, air pollution, smog, and sandstorms, people's awareness of environmental protection is increasing, and automobiles are one of the main factors of environmental problems. The contribution of its energy-saving and emission-reduction effects to environmental protection has gradually attracted the attention of governments and major vehicle manufacturers. In recent years, the requirements of fuel consumption regulations have become more and more stringent. The emission reduction and emission reduction of traditional vehicles can no longer meet the more stringent requirements of regulations on fuel consumption and emissions. Coupl...

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Problems solved by technology

[0003] For plug-in hybrid electric vehicles, its position between traditional fuel vehicles and pure electric vehicles makes it have a special treatment method in terms of vehicle thermal management. Currently, most hybrid vehicles on the market use belt The conventional single-cooling air conditioner for battery cooling plus the thermal management mode of high-pressure water-cooled electric heating equipment (PTC), in summer, the cooling of the car and the battery cooling rely on the single-cooling air conditioner, while the heating in winter uses PTC or the engine as the heat source, but this conventional The heating mode has certain disadvantages. When heating is required in winter, if PTC heating is used, the cruising range of the vehicle in pure electric mode will be reduced by more than 50%. If the engine is used to provide heat for the passenger compartment, there is no pure electric mode available in winter. use, unable to give full play to the advantages of low fuel consumption and emission in the pure electric mode of hybrid vehicles

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