US 12,330,463 B2
Vehicle suspension system
Ryosuke Yamazaki, Saitama (JP); Kazuya Konada, Saitama (JP); and Takashi Yanagi, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Feb. 23, 2023, as Appl. No. 18/173,075.
Claims priority of application No. 202210248069.0 (CN), filed on Mar. 14, 2022.
Prior Publication US 2023/0286346 A1, Sep. 14, 2023
Int. Cl. B60G 17/0165 (2006.01); B60G 17/018 (2006.01); B60G 17/019 (2006.01)
CPC B60G 17/0165 (2013.01) [B60G 17/018 (2013.01); B60G 17/019 (2013.01); B60G 2400/82 (2013.01); B60G 2500/10 (2013.01); B60G 2600/182 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A vehicle suspension system comprising:
a road surface sensor provided in a portion of a vehicle body ahead of a front wheel to detect an unevenness of a road surface;
a damper provided between the vehicle body, which is a sprung member of a vehicle, and a wheel, which is an unsprung member, to apply a damping force and a propulsive force along a stroke direction to the vehicle body and the wheel with the aid of an actuator; and
a control device that controls the actuator based on a detection value from the road surface sensor, wherein
the road surface sensor comprises:
a front road surface sensor; and
a rear road surface sensor that overlaps the front road surface sensor in a vehicle width direction and is provided at a position behind the front road surface sensor,
the control device comprises:
a vehicle movement amount acquisitioner that acquires a movement amount of the vehicle;
a road surface height calculator that calculates a road surface height based on a detection value from the road surface sensor and the movement amount of the vehicle acquired by the vehicle movement amount acquisitioner; and
a damper controller that controls the actuator based on the road surface height calculated by the road surface height calculator, and
at least one selected from the front road surface sensor and the rear road surface sensor further comprises:
a central road surface sensor that overlaps the other road surface sensor in the vehicle width direction;
an inner road surface sensor provided on an inner side of the central road surface sensor in the vehicle width direction; and
an outer road surface sensor provided on an outer side of the central road surface sensor in the vehicle width direction.