VEHICULAR SUSPENSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a vehicular suspension system capable of preventing vehicle height adjustment from being frequently executed even when the spring constant is changed in a fluid type suspension spring. Ž

SOLUTION: In a fluid type suspension spring comprising a spring constant changing device for changing the spring constant and a fluid inflow/outflow device for adjusting the vehicle height by the volumetric change of a fluid chamber by allowing the fluid to flow in or flow out of the fluid chamber, when the distance Lrbetween a sprung part and an unsprung part is deviated from the target distance by the threshold ΔLdor more, the vehicle height adjustment is controlled by the inflow or outflow of the fluid. The threshold ΔLdto be used in the control is increased to be ΔLdlwhen the spring constant is in a state of the low spring constant by the spring constant changing device, or decreased to be ΔLdswhen the spring constant is in a state of the high spring constant. Ž

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