US 11,656,295 B2
Battery pack measurement timing
Benjamin A. Tabatowski-Bush, Ann Arbor, MI (US); John Paul Gibeau, Canton, MI (US); and Baojin Wang, Saline, MI (US)
Assigned to FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on May 27, 2021, as Appl. No. 17/332,384.
Prior Publication US 2022/0381847 A1, Dec. 1, 2022
Int. Cl. G01R 31/396 (2019.01); G01R 31/367 (2019.01); H01M 10/48 (2006.01); B60L 50/64 (2019.01); G01R 19/25 (2006.01)
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
OG exemplary drawing
 
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.