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Electric vehicle thermal management system

A thermal management system and electric vehicle technology, applied in the field of electric vehicle thermal management system, can solve the problems that different systems cannot transfer energy

Active Publication Date: 2020-10-20
GAC AION NEW ENERGY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a thermal management system for electric vehicles to solve the problem in the prior art that energy transfer cannot be performed between different systems

Method used

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  • Electric vehicle thermal management system
  • Electric vehicle thermal management system

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Experimental program
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Embodiment approach

[0045] As a first implementation manner, the heat pump air-conditioning system 300 cools at least one of the passenger compartment, the power battery and the motor according to a preset working mode.

[0046] Wherein, the preset working mode is a control mode in which the heat pump air-conditioning system 300 is controlled to cool at least one of the passenger compartment, the power battery and the motor according to the current environment state.

[0047] As the first preset working mode, the preset working mode is a mode in which the heat pump air-conditioning system 300 performs cooling on the passenger compartment; image 3 As shown, the heat pump air conditioning system 300 includes a compressor 23, a first condenser 2, a second condenser 9, a fourth electronic expansion valve 24, an external heat exchanger 25, a first electronic expansion valve 26 and a second An evaporator 27; the heat pump air-conditioning system 300 also includes an air-conditioning fan 14 for driving...

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Abstract

The application provides an electric vehicle thermal management system. The electric vehicle thermal management system comprises a motor cooling system, a first controllable switch, a passenger compartment water heating system, a second controllable switch, a third controllable switch and a heat pump air conditioning system. By arranging the controllable switches, a power battery temperature control system and the motor cooling system are switched between a series mode and an independent mode, the power battery temperature control system and the passenger compartment water heating system are switched between the series mode and the independent mode, and the motor cooling system and the passenger compartment water heating system are switched between the series mode and the independent mode.Heat exchange between the heat pump air conditioning system and the power battery temperature control system, heat exchange between the heat pump air conditioning system and the motor cooling system,heat exchange between the heat pump air conditioning system and the passenger compartment water heating system and heat exchange between the heat pump air conditioning system and air in a passenger compartment are achieved by arranging a heat exchange device. Heat can be flexibly transferred among the four systems, so that the energy consumption of the electric vehicle is reduced, and the drivingrange of the electric vehicle is increased.

Description

technical field [0001] The present application relates to the technical field of vehicles, in particular to a heat management system for electric vehicles. Background technique [0002] At present, electric vehicles usually use the power provided by the power battery to provide energy for accessories such as vehicle driving, air conditioners, passenger compartment heaters, and battery heaters, and the driving range of electric vehicles can be improved by reducing the energy consumption of accessories. In order to reduce the energy consumption of the whole vehicle, the heat pump air conditioner is applied to the electric vehicle. In the low temperature and high humidity environment, the external evaporator of the heat pump air conditioner is prone to frost, which reduces the efficiency of the heat pump air conditioner and needs to enter the defrosting mode. At this time, the power However, a large amount of waste heat from batteries and motors is discharged into the environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/14B60H1/32B60L58/26B60L58/27
CPCB60H1/00392B60H1/00271B60H1/00278B60H1/143B60H1/3204B60H2001/00307Y02T10/70
Inventor 万星荣喻皓陈文单刘俊文
Owner GAC AION NEW ENERGY AUTOMOBILE CO LTD
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