US 12,221,177 B2
Deboost methods and systems for active safety steering control
Mohammadali Shahriari, Markham (CA); Tushita Arun Sikder, Windsor (CA); Reza Zarringhalam, Whitby (CA); Ashraf Abualfellat, Grand Blanc, MI (US); Emily Frances Wolfangel, West Bloomfield, MI (US); and Brian Porto, Wixom, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Dec. 14, 2022, as Appl. No. 18/065,902.
Prior Publication US 2024/0199111 A1, Jun. 20, 2024
Int. Cl. B62D 5/04 (2006.01); B62D 6/00 (2006.01)
CPC B62D 5/0481 (2013.01) [B62D 5/0463 (2013.01); B62D 6/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of controlling a vehicle comprising an Electric Power Steering System (EPS), the method comprising:
learning, by a processor, a non-linearity of a boost factor associated with the EPS;
determining, by the processor, a deboost factor based on an inverse relationship of the learned non-linearity of the boost factor associated with the EPS; and
generating, by the processor, a steering command to the EPS based on the deboost factor wherein the learning comprises learning the non-linearity based on a measured lateral acceleration of the vehicle and a target lateral acceleration of the vehicle and wherein the determining the deboost factor is based on an adaptive filter.