US 12,434,524 B2
Slip state detection apparatus and suspension control apparatus
Yuki Yoshida, Hitachinaka (JP); Ryusuke Hirao, Hitachinaka (JP); and Shingo Nasu, Tokyo (JP)
Assigned to HITACHI ASTEMO, LTD., Ibaraki (JP)
Appl. No. 18/274,068
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
PCT Filed Jan. 20, 2022, PCT No. PCT/JP2022/001879
§ 371(c)(1), (2) Date Jul. 25, 2023,
PCT Pub. No. WO2022/163471, PCT Pub. Date Aug. 4, 2022.
Claims priority of application No. 2021-011007 (JP), filed on Jan. 27, 2021.
Prior Publication US 2025/0018760 A1, Jan. 16, 2025
Int. Cl. B60G 17/016 (2006.01)
CPC B60G 17/016 (2013.01) [B60G 2400/106 (2013.01); B60G 2400/208 (2013.01); B60G 2400/252 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A suspension control apparatus comprising:
a tire characteristic-considered slip ratio determination portion configured to determine a tire characteristic-considered slip ratio, which is a coefficient for correcting a slip ratio of a wheel determined based on a rotational velocity signal of the wheel, based on a longitudinal acceleration of a vehicle detected by a longitudinal acceleration detection portion and a tire characteristic; and
a corrected slip ratio determination portion configured to determine a corrected slip ratio of the wheel by correcting the slip ratio of the wheel according to the tire characteristic-considered slip ratio;and a suspension control portion configured to output a control signal to an actuator between a body of the vehicle and a wheel-side member based at least in part on the tire characteristic-considered slip ratio and the corrected slip ratio.