CPC G01R 31/396 (2019.01) [B60L 50/64 (2019.02); G01R 31/367 (2019.01); H01M 10/482 (2013.01); G01R 19/2509 (2013.01); H01M 2220/20 (2013.01)] | 15 Claims |
1. A vehicle power system comprising:
a plurality of battery cell arrays;
a plurality of battery array sensors, each of the battery array sensors arranged to sense a voltage of at least some of the battery cells of one of the battery cell arrays;
a current sensor arranged to sense a current through the battery cell arrays; and
a controller programmed to generate a first command for the battery array sensors to sense the voltages and to generate a second command to sample a value of the current from the current sensor at a time following the first command that is defined by a time difference between a midpoint of a duration of an analog to digital conversion operation of a first of the battery array sensors and a midpoint of a duration of an analog to digital conversion operation of a last of the battery array sensors.
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