US 12,330,509 B2
Systems and methods for resolving hill start conditions
Brian Harries, Hermosa Beach, CA (US); Boru Wang, Torrance, CA (US); Kang Wang, Palos Verdes Estates, CA (US); and Chia-Chou Yeh, Torrance, CA (US)
Assigned to Rivian IP Holdings, LLC, Irvine, CA (US)
Filed by Rivian IP Holdings, LLC, Plymouth, MI (US)
Filed on Jan. 27, 2021, as Appl. No. 17/159,224.
Prior Publication US 2022/0234452 A1, Jul. 28, 2022
Int. Cl. B60L 15/20 (2006.01); B60L 53/20 (2019.01)
CPC B60L 15/2081 (2013.01) [B60L 53/20 (2019.02); B60L 2240/10 (2013.01); B60L 2250/26 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A controller comprising:
a first component configured to receive a zero-speed command and electric motor information comprising information on positions of a plurality of electric motors received from a plurality of sensors for monitoring positions of the plurality of electric motors;
a second component configured to generate a torque command based on the received zero-speed command and the information on positions of the plurality of electric motors of the electric motor information; and
a third component configured to instruct a drive unit inverter for an electric motor in response to the generated torque command, wherein the controller is configured to:
determine that a brake pedal is depressed less than a first threshold amount that is sufficient to keep the vehicle from rolling forward or backward and that a current motor speed information indicates a value below a second threshold amount for speed of the electric motor; and
send, responsive to the determination, the zero-speed command to the first component.