US 12,267,032 B2
Dual inverter open winding machine for vehicle with electric power takeoff
Akshay Sarin, Auburn Hills, MI (US); Alan B. Martin, Washington, MI (US); Brian Podczervinski, West Bloomfield, MI (US); Brian A. Welchko, Oakland Township, MI (US); Suresh Gopalakrishnan, Troy, MI (US); and Mark J. Moran, 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. 7, 2023, as Appl. No. 18/366,176.
Prior Publication US 2025/0055398 A1, Feb. 13, 2025
Int. Cl. H02P 27/08 (2006.01); B60L 50/75 (2019.01); B60L 53/20 (2019.01); H01M 16/00 (2006.01); H02P 27/06 (2006.01)
CPC H02P 27/06 (2013.01) [B60L 50/75 (2019.02); B60L 53/20 (2019.02); H01M 16/006 (2013.01); B60L 2210/40 (2013.01); H01M 2220/20 (2013.01); H01M 2250/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dual inverter open winding machine for a vehicle, comprising:
an electric motor operable according to a mechanical distribution mode and an electrical distribution mode, the mechanical distribution mode utilizing the motor to propel the vehicle, the electrical distribution mode utilizing the motor to support electrical power transfer for the vehicle, the electric motor including a plurality of windings with each winding having a first end and a second end;
a fuel cell energy source;
a fuel cell inverter coupled between the fuel cell energy source and the first ends of the windings;
a plurality of fuel cell switches independently operable between an opened position and a closed position to selectively connect and disconnect a direct current (DC) battery port and an alternating current (AC) fuel cell port with one or more of the fuel cell energy source, the fuel cell inverter, and the first ends of the windings;
a battery energy source;
a battery inverter coupled between the battery energy source and the second ends of the windings;
a plurality of battery switches independently operable between an opened position and a closed position to selectively connect and disconnect a DC fuel cell port and an AC battery port with one or more of the battery energy source, the battery inverter, and the second ends of the windings; and
a controller configured for controlling the fuel cell switches, the battery switches, the fuel cell inverter, and the battery inverter according to a mechanical power distribution strategy when the electric motor is operating in the mechanical distribution mode and according to an electrical power distribution strategy when the electric motor is operating according to the electrical distribution mode.