US 12,330,527 B2
System and method for high voltage battery pack measurement
Seyed R. Zarabadi, Kokomo, IN (US); Mark R. Keyse, Sharpsville, IN (US); and Mark W. Gose, Kokomo, IN (US)
Assigned to BorgWarner US Technologies LLC, Wilmington, DE (US)
Filed by BorgWarner US Technologies LLC, Wilmington, DE (US)
Filed on Jul. 5, 2024, as Appl. No. 18/764,564.
Application 18/764,564 is a continuation of application No. 17/333,854, filed on May 28, 2021, granted, now 12,054,073.
Prior Publication US 2024/0359589 A1, Oct. 31, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B60L 58/12 (2019.01); G01R 31/36 (2020.01); G01R 31/388 (2019.01)
CPC B60L 58/12 (2019.02) [G01R 31/3648 (2013.01); G01R 31/388 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining a first resistance ratio based, at least in part, on one or more first reference voltages associated with a positive voltage direct current signal of a battery;
determining a second resistance ratio based, at least in part, on one or more second reference voltages associated with a negative voltage direct current signal of the battery;
determining a positive voltage associated with the positive voltage direct current signal based, at least in part, on the first resistance ratio; and
determining a negative voltage associated with the negative voltage direct current signal based, at least in part, on the second resistance ratio.
 
9. A system comprising:
one or more controllers configured to:
determine a first resistance ratio based, at least in part, on one or more first reference voltages associated with a positive voltage direct current signal of a battery;
determine a second resistance ratio based, at least in part, on one or more second reference voltages associated with a negative voltage direct current signal of the battery;
determine a positive voltage associated with the positive voltage direct current signal based, at least in part, on the first resistance ratio; and
determine a negative voltage associated with the negative voltage direct current signal based, at least in part, on the second resistance ratio.
 
17. An apparatus comprising:
one or more controllers configured to:
determine a positive voltage based, at least in part, on a first resistance ratio associated with a positive voltage direct current signal; and
determine a negative voltage based, at least in part, on a second resistance ratio associated with a negative voltage direct current signal.