US 12,377,746 B2
Load shedding for a vehicle
Xinyu Du, Oakland Township, MI (US); Infane Lowe, Grand Blanc, MI (US); Chandra S. Namuduri, Troy, MI (US); Lyall Kenneth Winger, Waterloo (CA); and Jonathan O. Conell, Sterling Heights, 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. 9, 2022, as Appl. No. 17/884,145.
Prior Publication US 2024/0051421 A1, Feb. 15, 2024
Int. Cl. B60L 53/63 (2019.01); B60L 53/14 (2019.01)
CPC B60L 53/63 (2019.02) [B60L 53/14 (2019.02)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
selecting a selected load shed operation from one of three initial load shed operations, wherein the selecting is based at least in part on an operating condition of the vehicle;
responsive to determining to perform the selected load shed operation, issuing, by the controller, a command to a device to perform the selected load shed operation;
determining, by the controller, whether the device performed the selected load shed operation based at least in part on an available energy and an available power, wherein the available energy is how much power is available over a period of time expressed in amp hours (Ah), and wherein the available power is how much power is available at a particular time expressed in watts (W);
responsive to determining that the selected load shed operation was not effective, implementing an additional load shed operation other than the three initial load shed operations; and
responsive to determining that the device failed to perform the selected load shed operation or that the additional load shed operation was not effective, opening a relay associated with the device to prevent power from being delivered from the battery to the device.