US 12,269,364 B2
Real-time modification of charge termination voltage and current and associated controls for electric vehicles
Justin Bunnell, Farmington Hills, MI (US); John C. Lyons, Canton, MI (US); Sudhakar Inguva, Troy, MI (US); and Ryan B. Moulliet, Farmington 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 Nov. 21, 2022, as Appl. No. 17/990,808.
Prior Publication US 2024/0166070 A1, May 23, 2024
Int. Cl. B60L 53/62 (2019.01); B60L 53/14 (2019.01); B60L 53/20 (2019.01); B60L 53/66 (2019.01)
CPC B60L 53/62 (2019.02) [B60L 53/14 (2019.02); B60L 53/20 (2019.02); B60L 53/66 (2019.02)] 20 Claims
OG exemplary drawing
 
1. A charging system for an electric vehicle, the charging system comprising:
a memory configured to store a plurality of terminal clamp voltage (CV) and a cutoff current (CC) combination pairs, wherein a terminal CV refers to a voltage at terminals of a rechargeable energy storage system at a point in time when charging of the rechargeable energy storage system is complete, and wherein a CC refers to an amount of charging current to the rechargeable energy storage system at the point in time when charging of the rechargeable energy storage system is complete;
a charging receptacle configured to connect to an offboard charging station; and
an onboard charging circuit comprising
a high-voltage direct current bus connected to the rechargeable energy storage system, and
a control module configured to communicate with the offboard charging station and determine charging capabilities of the offboard charging station and the onboard charging circuit, to select one of the plurality of CV and CC combination pairs based on the charging capabilities of the offboard charging station and the onboard charging circuit, and to initiate charging of the rechargeable energy storage system based on the selected one of the plurality of CV and CC combination pairs.