Battery thermal management control method

A battery thermal management and control method technology, which is applied in the field of automotive battery thermal management control, can solve the problems of energy waste, inability to efficiently control the temperature of battery modules, etc., and achieve the effect of minimizing energy consumption

Inactive Publication Date: 2012-01-11
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the temperature of the battery module itself is not only related to the load of the battery, but also affected by factors such as the ambient temperature and the state of the heat d

Method used

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Embodiment Construction

[0037] In order to make the above objects, features and advantages more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] see figure 1 As shown, a vehicle battery thermal management system according to an embodiment of the present invention involves a battery cooling circuit 1 and an air conditioner refrigerant circuit 2 .

[0039] The battery cooling circuit 1 includes a water pump 12 , a battery module 10 and a heat exchanger 14 connected in sequence by a coolant conduit 11 . The water pump 12 can be driven electrically or mechanically, and drives the coolant to flow through the coolant conduit 11 and circulate through the battery module 10 and the heat exchanger 14 . The cooling liquid circulates in the loop communicated with the cooling liquid conduit 11 to form a cooling liquid circulation loop. In the coolant circulation circuit, when the coolant flows through the ...

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Abstract

The invention discloses a battery thermal management control method, which comprises the steps of: using a water pump to drive cooling liquid to realize heat exchange between the cooling liquid and a battery module so as to cool the battery module; acquiring the temperature of the cooling liquid; under the situation that the water pump is shut down, when the temperature of the cooling liquid reaches startup temperature, starting up the water pump; and under the situation that the water pump is started up, when the temperature of the cooling liquid reaches shutdown temperature, shutting down the water pump, wherein the startup temperature is higher than the shutdown temperature. Therefore, the situation that the water pump is apt to be damaged because the water pump is frequently started up is avoided. Moreover, energy wastage can be avoided by avoiding the frequent startup of the water pump.

Description

【Technical field】 [0001] The invention relates to the field of thermal management control of a vehicle battery, in particular to a battery thermal management control method for a vehicle including an air-conditioning refrigerant circuit. 【Background technique】 [0002] The battery power in traditional vehicles is generally relatively small, and the operating temperature is relatively low. Vehicles equipped with high-power traction batteries, such as hybrid vehicles and electric vehicles, etc., because the traction batteries need to provide power to the driving motor of the vehicle, and their output power is large, they often generate heat and cause the temperature of the traction batteries to rise. When the temperature is too high, it is easy to cause abnormal operation of the traction battery, and even cause the danger of explosion of the traction battery. Therefore, it is necessary to design a special battery thermal management system to help the power battery run in the ...

Claims

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Application Information

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IPC IPC(8): H01M10/50H01M10/613H01M10/625H01M10/635H01M10/6567
CPCY02E60/10
Inventor 王天英张良
Owner SAIC MOTOR
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