US 12,240,545 B2
Apparatus and method of diagnosing and correcting steering angle of steer-by-wire steering system
Dong Hee Kim, Yongin-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Nov. 29, 2022, as Appl. No. 18/070,925.
Claims priority of application No. 10-2022-0068667 (KR), filed on Jun. 7, 2022.
Prior Publication US 2023/0391397 A1, Dec. 7, 2023
Int. Cl. B62D 6/02 (2006.01); B62D 5/04 (2006.01); B62D 6/00 (2006.01); G01M 17/06 (2006.01)
CPC B62D 6/002 (2013.01) [B62D 5/0481 (2013.01); G01M 17/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A steering angle diagnosis and correction apparatus in a steer-by-wire (SBW) steering system, the apparatus comprising:
a sensor unit configured to detect information for diagnosing a steering angle alignment error between a steer-side upper system and a wheel-side lower system in the SBW steering system through a plurality of sensors provided in the steer-side upper system and wheel-side lower system; and
one or more processors configured to execute one or more instructions to:
diagnose the steering angle alignment error between the steer-side upper system and wheel-side lower system on a basis of the information detected by the sensor unit; and
correct the steering angle alignment error in real time,
wherein the instructions further comprise:
detecting a steering angle range during vehicle steering;
comparing the steering angle range with a steerable range, the steerable range including one of a mechanically designed steerable range or a steerable range set by software; and
adjusting the steerable range by an excess amount of the steering angle range in a direction to correct the steering angle alignment error if the steering angle range exceeds the one of the mechanically designed steerable range or the steerable range set by software.