US 12,103,584 B2
Steering control apparatus and method
Ji Hoon Park, Seongnam-si (KR); Sun Hong Park, Yongin-si (KR); and Hyun Chul Tae, Yongin-si (KR)
Assigned to HL MANDO CORPORATION, Pyeongtaek-si (KR)
Appl. No. 17/790,074
Filed by HL MANDO CORPORATION, Pyeongtaek-si (KR)
PCT Filed Dec. 24, 2020, PCT No. PCT/KR2020/019081
§ 371(c)(1), (2) Date Jun. 29, 2022,
PCT Pub. No. WO2021/137528, PCT Pub. Date Jul. 8, 2021.
Claims priority of application No. 10-2019-0179321 (KR), filed on Dec. 31, 2019.
Prior Publication US 2023/0058697 A1, Feb. 23, 2023
Int. Cl. B62D 15/02 (2006.01)
CPC B62D 15/0245 (2013.01) [B60Y 2300/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A steering control device, comprising:
a receiver configured to receive:
an ignition-off signal and an ignition-on signal, and
relative steering angle information received from a relative steering angle sensor measuring only a relative angle of a steering wheel;
a calculator configured to calculate:
range information using the relative steering angle information, and
absolute steering angle information based on the relative steering angle information and the range information; and
a controller configured to:
when the ignition-off signal is received, determine whether an absolute steering angle calculation condition for calculating the absolute steering angle information is met even after ignition-off,
in response to determining the absolute steering angle calculation condition being not met, generate an ignition-off control signal to prevent ignition from being turned off, and
in response to determining the absolute steering angle calculation condition being met, generate the ignition-off control signal to allow ignition to be turned off.