US 12,485,961 B2
Steering control apparatus of SBW system
Chan Jung Kim, Hwaseong-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Nov. 7, 2022, as Appl. No. 17/981,979.
Claims priority of application No. 10-2021-0167867 (KR), filed on Nov. 30, 2021.
Prior Publication US 2023/0166791 A1, Jun. 1, 2023
Int. Cl. B62D 6/08 (2006.01); B62D 5/00 (2006.01)
CPC B62D 6/08 (2013.01) [B62D 5/006 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A steering control apparatus of a vehicle steer-by-wire (SBW) system, the steering control apparatus comprising:
a steering feedback unit configured to detect a steering torque generated according to an operation of a steering wheel;
a road-wheel steering unit connected to the steering feedback unit to allow a steering of a wheel to be performed according to the steering torque transmitted from the steering feedback unit; and
a control unit connected to the steering feedback unit and the road-wheel steering unit and configured to determine and convert the steering torque detected in the steering feedback unit into a steering angle, which is then transmitted to the road-wheel steering unit, and control the steering of the wheel according to the steering angle to be performed,
wherein the control unit is configured to apply the steering torque detected through the steering feedback unit to a plurality of steering auxiliary modules, to control the steering torque to be processed, and to apply the processed steering torque to a preset steering angle generation module so that the steering angle for being transmitted to the road-wheel steering unit is determined, and
wherein the steering angle generation module includes a first module in which the steering angle increases in proportion to an increase in the steering torque, a second module in which an increase rate of the steering angle increase as the steering torque increases, and a third module in which the increase rate of the steering angle decreases as the steering torque increases.