US 12,473,017 B2
Control device, method for controlling same, and electric power steering device
Masaki Kodato, Hitachinaka (JP); and Tsukasa Miyajima, Hitachinaka (JP)
Assigned to HITACHI ASTEMO, LTD., Hitachinaka (JP)
Appl. No. 18/692,083
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
PCT Filed Aug. 30, 2022, PCT No. PCT/JP2022/032524
§ 371(c)(1), (2) Date Mar. 14, 2024,
PCT Pub. No. WO2023/095407, PCT Pub. Date Jun. 1, 2023.
Claims priority of application No. 2021-191836 (JP), filed on Nov. 26, 2021.
Prior Publication US 2024/0383525 A1, Nov. 21, 2024
Int. Cl. B62D 5/04 (2006.01); B62D 6/00 (2006.01)
CPC B62D 5/0463 (2013.01) [B62D 6/008 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A control device, which is to be used for a vehicle including:
a steering wheel configured to steer the vehicle;
a steering member configured to steer steered wheels in accordance with rotation of the steering wheel; and
a steering actuator configured to apply a steering force to the steering member,
the control device comprising a control unit configured to output, to the steering actuator, a drive signal for applying the steering force based on steering information on the steering wheel,
wherein the control unit includes a usual steering force generation unit configured to generate a usual steering force, and a correction steering force generation unit configured to generate a correction steering force that corrects the usual steering force, and
wherein the correction steering force generation unit is configured to generate a negative correction steering force that reduces the usual steering force until the steering member reaches the stroke end after a rotation angle of the steering wheel reaches a predetermined control start angle, to generate a positive correction steering force that increases the usual steering force when the steering member reaches the stroke end and then bounces back, and to output a drive signal to the steering actuator.