CPC H02J 7/00714 (2020.01) [B60L 1/14 (2013.01); B60L 58/12 (2019.02); H02J 7/007 (2013.01); H02J 7/0013 (2013.01); H02J 7/0048 (2020.01); H02J 7/0063 (2013.01); H02J 7/007182 (2020.01); B60L 2240/12 (2013.01)] | 18 Claims |
1. A system comprising:
plural strings of energy storage devices configured to power a load and to be charged by a power source, the strings selectively connectable to one or more conductive buses by plural electrically controllable switches; and
a controller operatively connected to the switches and configured to control the switches for one or more of (a) connecting the strings with one or more of the load or the power source via the one or more conductive buses in a first sequence or (b) disconnecting the strings from one or more of the load or the power source via the one or more conductive buses in a second sequence, the controller configured to precharge the one or more conductive buses with one or more of: (c) at least one higher charged string of the strings or (d) the power source, the first sequence and the second sequence based on one or more of states of charge between the strings, different charge capacities between the strings, different electric currents conducted through the strings, different polarities of the electric currents conducted through the strings, or a speed of a vehicle that is powered by the load.
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