Power cell heat management device and method

A power battery and thermal management technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve problems such as the inability to effectively control the battery temperature, and achieve a good cooling effect.
CN104733801AInactive Publication Date: 2015-06-24BEIJING BORGWARD AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING BORGWARD AUTOMOBILE CO LTD
Publication Date
2015-06-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a power cell heat management system and method and relates to the technical field of automobile power cells. The power cell heat management system comprises an acquisition module for real time acquisition of a current value and a cell temperature value output by the cell, a prediction module for predicting a cell heating state and determining if a heat radiation mode is started in advance according to the cell heating state, and first and second control modules respectively for controlling a cell heat radiation device. Through prediction of a cell state after preset time, the highest temperature after the predicted time can be predicted so that a cooling treatment process is carried out before cell heating and the cell temperature is in a reasonable temperature range. The power cell heat management system and method solves the problem that because of temperature hysteresis quality, the cell is cooled only after heating. The power cell heat management system and method realize effective cell heat management and guarantee high efficiency and long life operation of the cell.
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Description

technical field

[0001] The invention relates to the technical field of electric vehicle power batteries, in particular to a power battery thermal management device and method. Background technique

[0002] The performance of power batteries is sensitive to temperature changes. The space for loading batteries in the car is limited, and the number of batteries required for normal operation is relatively large, and the batteries are all closely connected. When the vehicle is in different working conditions such as high speed, low speed, acceleration, deceleration, etc., the battery will be discharged at different rates, and a large amount of heat will be generated at different heat generation rates. In addition to the accumulation of time and the influence of space, a large amount of heat will be accumulated, so it is effective Thermal management is very important. Battery thermal management is an important part of the battery management system. The thermal management system i...

Claims

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