US 12,325,475 B2
Power steering control system with redundant structure and control method thereof
Tae Hong Kim, Yongin-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Nov. 9, 2023, as Appl. No. 18/388,276.
Claims priority of application No. 10-2022-0155452 (KR), filed on Nov. 18, 2022.
Prior Publication US 2024/0166255 A1, May 23, 2024
Int. Cl. B62D 5/04 (2006.01); B60W 10/20 (2006.01)
CPC B62D 5/046 (2013.01) [B60W 10/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A power steering control system with redundant structure, the system comprising:
a first position controller configured to output a first speed command value in response to a command steering angle;
a first speed controller operatively connected to the first position controller and configured to output a first current command value in response to the first speed command value received from the first position controller;
a first current controller operatively connected to the first speed controller and configured to output a first current control signal for controlling a steering motor in response to the first current command value received from the first speed controller;
a second position controller configured to output a second speed command value in response to a command steering angle;
a second speed controller operatively connected to the second position controller and configured to output a second current command value in response to the second speed command value received from the second position controller and;
a second current controller operatively connected to the second speed controller and configured to output a second current control signal for controlling the steering motor in response to the second current command value received from the second speed controller; and
the steering motor operatively connected to the first current controller and the second current controller and configured to control a driving direction of an object to which the steering motor is mounted, by driving in response to the first current control signal and the second current control signal,
wherein the first position controller and the second position controller are configured to transmit the command steering angles to each other to average the command steering angles, and then determine the first speed command value and the second speed command value, respectively.