US 12,344,307 B2
Steer-by-wire system for a vehicle providing synthetic chassis understeer based on steering rack load
Ibrahim A. Badiru, Novi, MI (US); and Gabriel de Paula Eduardo, Brighton, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on May 18, 2023, as Appl. No. 18/319,980.
Prior Publication US 2024/0383532 A1, Nov. 21, 2024
Int. Cl. B62D 15/02 (2006.01); B62D 3/12 (2006.01); B62D 5/04 (2006.01); B62D 6/00 (2006.01)
CPC B62D 15/025 (2013.01) [B62D 3/12 (2013.01); B62D 5/0421 (2013.01); B62D 5/0463 (2013.01); B62D 6/002 (2013.01); B62D 6/003 (2013.01); B62D 6/007 (2013.01); B62D 6/008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A steer-by-wire system of a vehicle, the steer-by-wire system comprising:
a plurality of sensors configured to detect a plurality of parameters including at least one of a steering rack load on a steering rack of the vehicle and a speed of the vehicle; and
a control module configured to operate in a synthetic chassis understeer mode including i) determining a change in road wheel angle based on the plurality of parameters, and ii) based on the change in the road wheel angle, controlling a motor to adjust a position of the steering rack to at least one of introduce and increase understeer.