US 12,030,387 B2
Electrified vehicle control using battery electrochemical equilibrium based state of charge and power capability estimates
Marcelo Araujo Xavier, Belleville, MI (US); and Gabrielle Vuylsteke, Ann Arbor, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Jan. 7, 2021, as Appl. No. 17/143,298.
Prior Publication US 2022/0212545 A1, Jul. 7, 2022
Int. Cl. B60L 15/20 (2006.01); B60L 50/60 (2019.01); B60L 58/12 (2019.01)
CPC B60L 15/20 (2013.01) [B60L 50/60 (2019.02); B60L 58/12 (2019.02); B60L 2240/545 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vehicle comprising:
a traction battery having a plurality of cells;
a temperature sensor configured to measure battery temperature of the traction battery;
an electric machine powered by the traction battery and configured to provide propulsive power to the vehicle; and
a controller configured to control at least one of the electric machine and the traction battery using an estimated battery state of charge initialized upon requesting activation of the traction battery using an open circuit voltage that varies based on elapsed time from the traction battery becoming inactive.