US 11,865,932 B2
High voltage switching for an electric vehicle
Dongxu Li, Troy, MI (US); Lei Hao, Troy, MI (US); Chunhao J. Lee, Troy, MI (US); Suresh Gopalakrishnan, Troy, MI (US); and Junfeng Zhao, Troy, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Jun. 14, 2022, as Appl. No. 17/839,736.
Prior Publication US 2023/0398887 A1, Dec. 14, 2023
Int. Cl. B60L 53/20 (2019.01); B60L 1/02 (2006.01); H02M 3/155 (2006.01)
CPC B60L 53/20 (2019.02) [B60L 1/02 (2013.01); H02M 3/155 (2013.01); B60L 2210/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining whether a vehicle is operating in a first high voltage mode or a second high voltage mode;
responsive to determining that the vehicle is operating in the first high voltage mode, providing electric power to an electric motor at a first high voltage and providing electric power to an auxiliary device at a second high voltage that is different than the first high voltage; and
responsive to determining that the vehicle is operating in the second high voltage mode, providing electric power to the electric motor at the second high voltage and providing electric power to the auxiliary device at the second high voltage.