A method for controlling heating of electric vehicle battery while driving
A driving heating and control method technology, which is applied to secondary batteries, circuits, electrical components, etc., can solve the problems that the battery system cannot adapt to different environments, and the threshold value of heating on and off is fixed, so as to solve the problem of environmental adaptability and reduce The overall energy consumption and the effect of reducing the power consumption of the whole vehicle
Active Publication Date: 2021-06-01
宇通商用车有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a heating control method for electric vehicle batteries, which is used to solve the problem in the prior art that the heating on and off thresholds are fixed so that the battery system cannot adapt to different environments
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0024] The invention designs a driving heating control method of an electric vehicle, which is suitable for driving heating control of a battery system of the electric vehicle.
[0025] Such as figure 1 Shown is a flow chart of the method of the present invention, comprising:
[0026] 1. Check whether the vehicle is powered on, if the vehicle is not powered on, it will end, otherwise go to the next step;
[0027] 2. Check whether the battery system is in the set state, if so, enter the next step, otherwise end;
[0028] 3. Check whether the number of times of heating is greater than the set number, if so, end, otherwise go to the next step;
[0029] 4. Detect the battery power-on temperature, and compare it with the stored historical power-on temperature within the set time period before power-on to obtain the minimum power-on temperature;
[0030] 5. Com...
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The invention relates to the field of heat management of an electric vehicle battery system, in particular to a heating control method for an electric vehicle battery while driving. The present invention compares the power-on temperature when the electric vehicle is powered on with the stored historical power-on temperature in the previously set time period by setting the standard minimum temperature, determines the value of the minimum power-on temperature, and then compares it with the standard minimum temperature , to get the corresponding heating on and off temperatures. The invention can effectively solve the problem of environmental adaptability, dynamically adjust the heating on and off thresholds, and on the premise of meeting the driving power of the whole vehicle, take into account the customer's power supply needs, reduce the heating time as much as possible, reduce the power consumption of the whole vehicle, and prolong the electric heating time. Car mileage.
Description
technical field [0001] The invention relates to the field of heat management of an electric vehicle battery system, in particular to a heating control method for an electric vehicle battery while driving. Background technique [0002] The thermal management technology of electric vehicle battery system is very important for electric vehicles and their power battery systems (hereinafter referred to as battery systems). It can also reduce the power consumption increase of electric vehicles caused by excessive and repeated heating of the battery system itself, extend the mileage of electric vehicles, and enhance the competitiveness of products. The heating management technology of electric vehicles is one of the key points and difficulties in the design of electric vehicles. one. [0003] Electric vehicle heating management mainly refers to charging heating management and driving heating management. The current industry basically adopts fixed heating opening and closing thresh...
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IPC IPC(8): H01M10/615H01M10/625H01M10/633
CPCY02E60/10
Inventor 张红涛周雪松游祥龙李师周时国
Owner 宇通商用车有限公司