US 12,269,541 B2
Steering control device and method
SeungGyu Hong, Gyeonggi-do (KR)
Assigned to HL MANDO CORPORATION, Gyeonggi-do (KR)
Filed by HL MANDO CORPORATION, Gyeonggi-do (KR)
Filed on Dec. 8, 2022, as Appl. No. 18/077,231.
Claims priority of application No. 10-2021-0174407 (KR), filed on Dec. 8, 2021.
Prior Publication US 2023/0174144 A1, Jun. 8, 2023
Int. Cl. B62D 5/04 (2006.01); B62D 3/12 (2006.01)
CPC B62D 5/0472 (2013.01) [B62D 3/12 (2013.01); B62D 5/0421 (2013.01); B62D 5/0481 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A steering control device for controlling a first motor generating steering feedback torque in response to rotation of a steering wheel and a second motor generating rack driving torque for moving a rack, the steering control device comprising:
a calculation unit calculating allowed rack speed information regarding a rack speed allowed when driving the rack using the second motor, based on rack force information and preset second motor performance information and calculating catch-up prevention torque information for preventing catch-up in the steering wheel, based on the allowed rack speed information and command rack speed information generated to drive the rack at a speed in response to rotation of the steering wheel; and
a controller performing catch-up prevention control on the first motor based on the catch-up prevention torque information.