Electric automobile cooling system and control method thereof

A technology for cooling systems and electric vehicles, which is applied to the layout of the cooling combination of power plants, power plants, and vehicle components, and can solve problems such as difficult layout, high design requirements, and poor cooling effects

Inactive Publication Date: 2009-10-07
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The analysis shows that air cooling has high requirements on the design of the motor and

Method used

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  • Electric automobile cooling system and control method thereof
  • Electric automobile cooling system and control method thereof

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Embodiment Construction

[0012] Such as figure 1 As shown, the present invention is a cooling system of a front-drive electric vehicle, and the motor 3 and the motor controller 2 are arranged in the front compartment, so the radiator 5 and the fan 4 are arranged in the air-conditioning condenser as in conventional automobiles. The fan 4 is directly arranged at the rear of the radiator 5 to directly dissipate heat from the radiator; the electronic water pump 1 is fixed to the vehicle body. Since the water pump 1 itself has noise and vibration, in order to improve the NVH performance of the vehicle, the fixing method of the water pump 1 It should be carried out in the way of soft connection; the motor 3 is fixed in the front cabin of the vehicle by suspension; the motor controller 2 can be fixed at an appropriate position in the front cabin. The entire cooling system starts from the water pump 1 and connects the water pipe to the motor controller 2, the water outlet pipe of the motor controller 2 is con...

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Abstract

The invention provides an electric automobile cooling system, comprising an electric water pump (1), an electric machine controller (MCU) (2), an electric machine (3), a radiator (5), a fan (4), an expansion tank and hose (6); wherein the electric machine (3) and the electric machine controller (2) are arranged in the front cabin of the electric automobile. The electric water pump (1), electric machine controller (2), electric machine (3) and the hose for the radiator (5) are connected with each other to form a cooling circuit; the fan is arranged at the back part of the radiator and the headwind and the cold air driven by the fan exchange heat with the radiator. When one of the electric machine temperature and the electric machine controller temperature achieves the preset value, the cooling system starts to work. When the two temperatures are lower than the preset value, the cooling system stops to work. Therefore the service life of the electric water pump is prolonged and the reliability of the cooling system is increased.

Description

technical field [0001] The invention relates to a cooling system of an electric drive system of an electric vehicle and a control method thereof. Background technique [0002] With the increasing shortage of oil resources and the continuous deepening of national energy conservation and environmental protection requirements, traditional gasoline vehicles can no longer adapt to the development of society. The social problem of increasing shortage is not only a topic of concern to the Chinese society, but also a major concern of the international community. In recent years, due to the development of electric bicycles and electric light vehicles, the rapid development of various key technologies such as batteries, motors and electronic control technologies has been promoted, laying a good foundation for the development of pure electric vehicles. Some European and American countries with developed automobile culture are actively developing pure electric vehicles relying on their...

Claims

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Application Information

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IPC IPC(8): B60K11/04B60K11/06
Inventor 戴荣田
Owner CHERY AUTOMOBILE CO LTD
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