US 12,291,288 B2
Steer-by-wire software end stop
Kaiser Xu, Suzhou (CN); and Roger Liu, Suzhou (CN)
Assigned to Steering Solutions IP Holding Corporation, Saginaw, MI (US)
Filed by STEERING SOLUTIONS IP HOLDING CORPORATION, Saginaw, MI (US)
Filed on Sep. 2, 2022, as Appl. No. 17/902,228.
Claims priority of application No. 202211006485.6 (CN), filed on Aug. 22, 2022.
Prior Publication US 2024/0059345 A1, Feb. 22, 2024
Int. Cl. B62D 5/00 (2006.01); B60W 50/10 (2012.01)
CPC B62D 5/001 (2013.01) [B60W 50/10 (2013.01); B60W 2510/202 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A system for controlling an end-of-travel of a handwheel, the system comprising:
a processor; and
a memory that includes instructions that, when executed by the processor, cause the processor to:
receive sensor data from at least one sensor associated with a roadwheel actuator of a vehicle;
determine, based on the sensor data, a mechanical end-of-travel value of the roadwheel actuator of the vehicle;
determine, based on the mechanical end-of-travel value of the roadwheel actuator and a speed of the vehicle, a handwheel actuator end-of-travel active value and a handwheel actuator end-of-travel damping value, wherein, responsive to an error in the sensor data, the handwheel actuator end-of-travel active value and the handwheel actuator end-of-travel damping value are determined based on a default end-of-travel value of the roadwheel actuator, wherein the error in the sensor data corresponds to a fault in the at least one sensor, and wherein the default end-of-travel value of the roadwheel actuator is larger than the mechanical end-of-travel value of the roadwheel actuator;
determine an end-of-travel value of a handwheel actuator based on the handwheel actuator end-of-travel active value, the handwheel actuator end-of-travel damping value, and a reference torque value; and
selectively control the handwheel of the vehicle based on the end-of-travel value of the handwheel actuator.