A vehicle power battery equalization method, device and vehicle
A technology of power battery and equalization method, which is applied in the direction of battery circuit devices, battery/fuel cell control devices, electric vehicles, etc., can solve the problems of low equalization efficiency and inapplicability, so as to improve the equalization effect, increase the usable capacity, The effect of good vehicle dynamic index
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[0054]The following descriptions of various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented.
[0055] Such as figure 1 Shown is a flow chart of a vehicle power battery equalization method provided by the embodiment of the first aspect of the present invention, and the method includes the following steps:
[0056] S100 determines to start battery equalization according to the sleep time of the car and the battery charge and discharge current value;
[0057] S200 Determine the battery cell with the lowest voltage, and obtain information about the voltage difference between other battery cells and the battery cell with the lowest voltage;
[0058] S300 Determine the balance information of the battery cells in each battery module according to the pressure difference information;
[0059] The S400 performs battery balancing based on the balancing information of battery cells.
[0060] Specificall...
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