Suspension system
AssigneeHitachi Astemo, Ltd.
InventorsYuki YOSHIDA, Masatoshi YAMAHATA
Life of this patent
Estimating the term…
Abstract
A stopped vehicle height of an air suspension for a stop-side wheel on a side that stops first is determined in consideration of a vehicle height that changes in accordance with a vehicle height change of the air suspension for a supply/discharge-side wheel on another side after a stop. Thus, when vehicle height adjustment of the air suspension for the supply/discharge-side wheel is finished, the stopped vehicle height of the air suspension for the stop-side wheel can be adjusted to the vicinity of a target value and the precision in the vehicle height adjustment can be increased.
Claims11
A suspension system, comprising:
- a right-side suspension and a left-side suspension interposed between a vehicle body and an axle, each of the right-side suspension and the left-side suspension being provided on at least one of a front side and a rear side so as to be capable of adjusting a vehicle height in accordance with supply and discharge of working fluid;
- a supply/discharge mechanism configured to supply and discharge the working fluid to and from each of the right-side suspension and the left-side suspension;
- and
- a vehicle height detector configured to detect or estimate the vehicle height of each of the right-side suspension and the left-side suspension,
- wherein when vehicle height adjustment of each of the right-side suspension and the left-side suspension is performed through use of the supply/discharge mechanism so that a detection value of the vehicle height detector approaches a target vehicle height, a stopped vehicle height of a suspension on one side, which is one of the right-side suspension and the left-side suspension, and stops first, is determined in consideration of a vehicle height changed in accordance with a change in vehicle height of a suspension on another side after the stop.
Dependencies are inferred from the claim text.