AIR SPRING DEVICE FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To improve ride comfort of a vehicle by precisely adjusting the damping performance of an air spring arranged as a secondary spring between a truck and a vehicle body of the vehicle, in response to a travel point and a travel speed of the vehicle in a section condition or a full speed condition in the whole section of a line. SOLUTION: A variable orifice 4 including a driving source 6 is arranged in an air passage between an inner chamber 11 of the air spring 10 arranged between the truck and the vehicle body and an auxiliary air chamber 12 of an external part, and an optimal orifice diameter set in response to the travel point or the travel speed of the vehicle is input in advance to a control device 8, and the variable orifice is controlled so as to become the orifice diameter set in a preset point or a preset travel speed by a command from the control device. COPYRIGHT: (C)2011,JPO&INPIT