Suspension system of a vehicle

摘要

A suspension system for vehicle includes a steering knuckle for supporting a wheel used for steering, a steering arm connected to the steering knuckle at one end thereof and to a tie rod of a steering device at an opposite end thereof, an upper arm for connecting an upper portion of the steering knuckle to a frame of the vehicle, and a lower arm for connecting a lower portion of the steering knuckle to a frame of the vehicle. At least one of the arms includes two link members, and each of the link members is pivotally connected to the frame of the vehicle at one end thereof and to the steering knuckle at an opposite end thereof. The link members are so disposed as to increase a distance between the connection point of the steering arm with the tie rod and a kingpin axis in response to an increase in a turning angle of the wheel used for steering when the wheel is turned toward an outward direction in which the wheel is located radially outwardly in relation to a turning circle. The ink members also reduce their distance in response to an increase in a turning angle of the wheel when the wheel is turned toward an inward direction in which the wheel is located radially inwardly in relation to the turning circle.