US 12,451,706 B2
Multi-voltage vehicle operation
Chunhao J. Lee, Troy, MI (US); Yongjie Zhu, Troy, MI (US); Suresh Gopalakrishnan, Troy, MI (US); Dongxu Li, Troy, MI (US); Chen-fang Chang, Bloomfield Hills, MI (US); Junfeng Zhao, Chandler, AZ (US); and Matthew Rademacher, Rochester Hills, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Aug. 3, 2022, as Appl. No. 17/879,972.
Prior Publication US 2024/0047979 A1, Feb. 8, 2024
Int. Cl. H02J 7/00 (2006.01); B60L 58/21 (2019.01)
CPC H02J 7/0024 (2013.01) [B60L 58/21 (2019.02)] 20 Claims
OG exemplary drawing
 
1. A system in a vehicle comprising:
two or more battery packs configured to power one or more motors of the vehicle to move the vehicle; and
a controller configured to dynamically activate an operational mode of the vehicle during vehicle operation, the operational mode being one of a plurality of possible operational modes, each of the possible operational modes defining which of the two or more battery packs are connected to the one or more motors and, based on two or more of the two or more battery packs being connected to the one or more motors, also defining an interconnection among the two or more of the two or more battery packs, wherein the plurality of possible operational modes includes a first operational mode defining a series connection between the two or more battery packs and second operational mode defining a parallel connection between the two or more battery packs,
wherein the controller is configured to activate the first operational mode as the operational mode during startup of the vehicle.