Method and device for controlling battery power
A battery power and battery technology, which is applied in the direction of battery/fuel cell control devices, secondary batteries, power collectors, etc., can solve the problems of damaging battery cells and shortening battery service life, so as to prolong service life and avoid damage Effect
Active Publication Date: 2021-07-13
NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
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Problems solved by technology
However, during the working process of the battery, the power of the battery may continue to be higher than the estimated maximum allowable power, which will still damage the battery cells and shorten the service life of the battery
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[0041] In existing battery protection solutions, the maximum allowable power for the battery is usually estimated in advance, that is, the maximum power allowed for the battery to work is estimated. In this way, when the battery is working, the power of the control battery will not exceed the estimated maximum allowable power, so as to achieve the purpose of protecting the battery core. However, in practical applications, the actual power of the battery during operation may exceed the maximum allowable power of the battery within a certain period of time, so that during this period of time, the long-term high-power operation of the battery will still damage the battery cells, and further It will shorten the battery life.
[0042] In order to achieve a better effect of protecting battery cells, the embodiment of the present application provides a method for controlling battery power, so that when the actual power of the battery exceeds a certain power, the power of the battery ...
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The present application discloses a method and device for controlling battery power, including: obtaining the first actual integral value of the actual power of the battery in the first time period for the first time period, and obtaining the first power threshold value of the battery for the first time period. The first integral value of the time period, and then compare the first actual integral value with the size of the first integral value, if the first actual integral value is greater than the first integral value, it indicates that the power of the battery in the first time period is greater than the first power threshold, then reduce the power of the battery to a second power threshold smaller than the first power threshold. It can be seen that by comparing the actual work done by the battery in the first time period with the theoretical value, it can be determined in time whether the power of the battery in the first time period is too large, and when the actual power is too large, by reducing the power of the battery , to avoid damage to the battery cell caused by the battery working at high power for a long time, thereby achieving the effect of protecting the battery cell and prolonging the service life of the battery.
Description
technical field [0001] The present application relates to the technical field of battery control, in particular to a method and device for controlling battery power. Background technique [0002] With the development of new energy technologies, batteries are being used more and more in fields such as electric vehicles and mobile terminals. When the battery is working, such as providing power for electric vehicles, it is usually required that the power of the battery should not be too large, otherwise, the long-term high-power work of the battery will damage the battery cell, thereby shortening the service life of the battery. [0003] In existing battery protection schemes, the maximum allowable power value of the battery is usually estimated, and when the battery is working, the power of the battery during operation is controlled to be lower than the preset maximum allowable power, so as to protect the battery. However, during the working process of the battery, the power ...
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IPC IPC(8): H01M10/42B60L58/10B60L58/13B60L5/14
CPCH01M10/425H01M2010/4271Y02E60/10Y02T10/70
Inventor 王晓玉陈明亮
Owner NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD