US 12,221,013 B2
Vehicle drive axle system and method of control
Frank J. Falcone, Escondido, CA (US); Ameya S. Jathar, Escondido, CA (US); and Aakash Ahuja, Escondido, CA (US)
Assigned to ArvinMeritor Technology, LLC, Troy, MI (US)
Filed by ArvinMeritor Technology, LLC, Troy, MI (US)
Filed on Sep. 22, 2022, as Appl. No. 17/950,485.
Prior Publication US 2024/0100995 A1, Mar. 28, 2024
Int. Cl. B60L 58/26 (2019.01); B60L 58/18 (2019.01); B60L 58/27 (2019.01)
CPC B60L 58/26 (2019.02) [B60L 58/18 (2019.02); B60L 58/27 (2019.02); B60L 2240/545 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of controlling a drive axle system of a vehicle, the method comprising:
determining whether a temperature of a first electric power source of the drive axle system is above an upper temperature limit when the first electric power source is being charged by a power supply that is external to the vehicle, wherein the first electric power source is configured to store electrical energy and provide electrical energy to an electric motor to provide vehicle propulsion torque; and
reducing the temperature of the first electric power source before entering a hibernation mode when the temperature of the first electric power source exceeds the upper temperature limit.