Method and device for estimating available capacity and state of health of minimum single battery and battery system
A battery system and effective capacity technology, applied in the direction of measuring devices, measuring electrical variables, measuring electricity, etc., can solve problems such as inaccurate estimation of effective capacity, inaccurate estimation of the smallest battery cell, and inaccurate estimation of the health status of the battery system. Achieve the effect of solving the inaccurate estimation of the health status, overcoming the calculation of the battery health status, and overcoming the battery health status
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[0059] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0060] Embodiment of the method for estimating the effective capacity of the minimum battery cell of the present invention:
[0061] The entire battery system is composed of battery cells connected in series. After the battery system is powered on, it is first judged whether the battery system is in a charging state. If it is not in a charging state, this calculation is discarded; otherwise, the smallest cell of the battery system is selected as the research object to calculate the effective capacity of the smallest cell.
[0062] The minimum unit of the system is judged according to the voltage of the unit. In the application process of the whole system, the individual cells show the voltage of the single cell, and the voltage of the single cell ...
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