US 12,139,040 B2
Electric drive with dual-energy storage and variable inverter input
Muhammad Hussain Alvi, Troy, MI (US); Suresh Gopalakrishnan, Troy, MI (US); and Chandra S. Namuduri, 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 Dec. 7, 2022, as Appl. No. 18/076,455.
Prior Publication US 2024/0190293 A1, Jun. 13, 2024
Int. Cl. B60L 58/19 (2019.01); H01M 10/44 (2006.01); H02J 7/00 (2006.01); H02M 3/158 (2006.01)
CPC B60L 58/19 (2019.02) [H01M 10/441 (2013.01); H02J 7/0024 (2013.01); H02M 3/1582 (2013.01); H01M 2220/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric drive system comprising:
a first electric drive;
a second electric drive;
a switchable battery including at least two battery packs that are selectively arranged in one of a series configuration and a parallel configuration;
a first half-bridge buck converter connecting the first electric drive to a first battery back of the at least two battery packs of the switchable battery;
a second half-bridge buck converter connecting the second electric drive to a second battery back of the at least two battery packs of the switchable battery; and
a controller configured to control a configuration of the switchable battery, an operation of the first half-bridge buck converter, and the second half-bridge buck converter,
wherein the controller is configured to operate the electric drive system in one of a first operating mode, a second operating mode and a third operating mode, wherein each of the operating modes define a different configuration arrangement of the switchable battery, an operation of the first half-bridge buck converter, and the second half-bridge buck converter.