Patent ID: 7390001
Filing Date: 2008-06-24
Classification: B60G

Abstract:
1. A vehicle suspension system, comprising: two front wheel side absorbers each of which includes a first absorber chamber and two rear wheel side absorbers each of which includes a second absorber chamber, the front wheel side absorbers and the rear wheel side absorbers being provided between four respective wheel side members that rotatably support four respective wheels and four respective vehicle body side members that correspond to the respective wheel side members on a vehicle body side; a control cylinder which includes (a) a piston assembly that is formed by coupling two pistons with each other using a coupling rod and (b) a cylinder housing having two cylinder chambers which are divided by a partition wall, in which the coupling rod penetrates the partition wall fluid-tightly and slidably, and in which the two pistons are fitted in the two respective cylinder chambers fluid-tightly and slidably, whereby two inner side control chambers are formed between the two respective pistons and the partition wall and two outer side control chambers are formed on outer sides of the two respective pistons, which are opposite to sides on which there is the partition wall; and a connection passage which connects the first absorber chambers of the two front wheel side absorbers to one of the respective two outer side control chambers and the respective two inner side chambers, and which connects the second absorber chambers of the two rear wheel side absorbers to the other of the respective two outer side control chambers and the respective two inner side chambers, wherein damping characteristics of the front wheel side absorbers and the rear wheel side absorbers and pressure-receiving areas of the piston assembly for the inner side control chambers and the outer side control chambers are set such that when the vehicle is turning, a direction in which the piston assembly moves stage of turning is opposite to a direction in which the piston assembly moves during the other times.