US 12,077,056 B2
Bidirectional electric vehicle charging with multi-phase machines
Oliver D. Wilson, Fridley, MN (US); and Akm Arafat, Blaine, MN (US)
Assigned to CUMMINS INC., Columbus, IN (US)
Appl. No. 18/015,457
Filed by Cummins Inc., Columbus, IN (US)
PCT Filed Jul. 1, 2021, PCT No. PCT/US2021/040114
§ 371(c)(1), (2) Date Jan. 10, 2023,
PCT Pub. No. WO2022/015519, PCT Pub. Date Jan. 20, 2022.
Claims priority of provisional application 63/051,422, filed on Jul. 14, 2020.
Prior Publication US 2023/0278441 A1, Sep. 7, 2023
Int. Cl. H02J 7/02 (2016.01); B60L 53/24 (2019.01); B60L 55/00 (2019.01); H02M 7/537 (2006.01)
CPC B60L 53/24 (2019.02) [B60L 55/00 (2019.02); H02J 7/02 (2013.01); H02M 7/537 (2013.01); B60L 2210/40 (2013.01); B60L 2220/54 (2013.01); B60L 2220/58 (2013.01); H02J 2310/48 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a multi-phase machine; and
a controller coupled to the multi-phase machine, the controller configured to:
receive a first request for energy flow from an electric grid to an electric vehicle;
operate a first set of phases in the multi-phase machine through a first inverter, the first set of phases in the multi-phase machine being operated at a grid frequency of the electric grid;
in response to the first set of phases in the multi-phase machine being operated at the grid frequency of the electric grid, switch the first set of phases in the multi-phase machine to the electric grid;
in response to switching the first set of phases in the multi-phase machine to the electric grid, operate a second set of phases in the multi-phase machine through a second inverter, the second set of phases in the multi-phase machine generating energy via electrical coupling to the first set of phases in the multi-phase machine; and
provide the energy generated by the second set of phases in the multi-phase machine to charge an energy source of the electric vehicle.