Integrated cooling system for electric vehicle and heat management control method thereof

A technology of cooling system and electric vehicle, which is applied in the layout of power unit cooling combination, power unit, vehicle components, etc., can solve the problems of single cycle control, descent, low transmission efficiency of transmission transmission oil temperature, etc. The effect of mileage

Active Publication Date: 2014-10-01
BEIJING ELECTRIC VEHICLE
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  • Abstract
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Problems solved by technology

[0003] At present, the cooling system of pure electric vehicles generally does not have a cooling system for single-stage reducers, and the cooling system of the motor and controller is connected in series and often adopts a single cycle control, that is, all the cooling liquid passes through the radiator, which is easy to occur in winter and low-load conditions. Overcooling phenomenon, it is difficult to ensure that the transmission oil works in a suitable range, resulting in low transmission oil temperature and a decrease in transmission efficiency

Method used

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  • Integrated cooling system for electric vehicle and heat management control method thereof
  • Integrated cooling system for electric vehicle and heat management control method thereof
  • Integrated cooling system for electric vehicle and heat management control method thereof

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Embodiment Construction

[0030] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 The shown integrated cooling system for electric vehicles includes a coolant outflow pipe connected to the motor-transmission cooling water circuit, a coolant inflow pipe, a radiator a and a water pump a, and the coolant outflow pipe is installed There is a thermostat. The thermostat can be a wax type thermostat or an electronic thermostat. Take the wax type thermostat as an example. The high temperature liquid outlet of the thermostat is connected to the inlet of the radiator through a pipe, and the radiator The outlet of the thermostat is connected to the coolant inflow pipeline through a pipeline, and the low-temperature liquid outlet of the thermostat is directly connected to the coolant inflow pipeline through a pipeline; this integrated cooling system becomes a dual-cycle cooling system;...

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Abstract

The invention discloses an integrated cooling system for an electric vehicle and a heat management control method thereof. The cooling system comprises a motor-transmission cooling system connected with a vehicle controller and a motor controller cooling system, wherein the motor-transmission cooling system is a two-way circulation control system, and the two-way circulation control system comprises an external circulation control system for cooling a radiator and an internal circulation control system for natural cooling; and the motor controller is an independent circulation control system. When a blade electric vehicle runs at different environmental temperatures and different working conditions, a supercooling phenomenon occurred in winter and at a low-load working condition is avoided affecting transmission efficiency through controlling the working state of a fan and a water pump of the cooling system, and driving range can be kept on the basis of guaranteeing reliable transmission.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to an integrated cooling system for electric vehicles and a thermal management control method thereof. Background technique [0002] In the development process of the automobile industry, pure electric vehicles are increasingly concerned and valued by the government and automobile user groups because of their green and environmental protection concepts. Direction of development. [0003] At present, the cooling system of pure electric vehicles generally does not have a cooling system for single-stage reducers, and the cooling system of the motor and controller is connected in series and often adopts a single cycle control, that is, all the cooling liquid passes through the radiator, which is easy to occur in winter and low-load conditions. The overcooling phenomenon makes it difficult to ensure that the transmission oil works in an appropriate range, resulting in a low temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K11/00
Inventor 朱波于涛曹琛王可峰魏跃远柯南极
Owner BEIJING ELECTRIC VEHICLE
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