Abstract: A vehicle suspension system smoothly changes a vehicle posture with respect to a steering force and a steering angle by minimizing a kinematic roll at an initial turning stage, thereby allowing a driver to obtain the sensation of maneuvering the vehicle well. The suspension system includes a front suspension having geometry satisfying that a caster angle is +3° to +5°, a caster trail is +20 to +30 mm, an intersection point between a kingpin axis and ground is located on an inner side in a vehicle width direction of a center of a tire contact patch, and an anhedral angle of a lower arm is +2.8° to +7.2°. A rear suspension includes five links and has geometry satisfying that a virtual kingpin axis extends near the center of a tire contact patch of a rear wheel assembly and extends vertically at ?2° to 0°.

Abstract: A vehicle suspension system smoothly changes a vehicle posture with respect to a steering force and a steering angle by minimizing a kinematic roll at an initial turning stage, thereby allowing a driver to obtain the sensation of maneuvering the vehicle well. The suspension system includes a front suspension having geometry satisfying that a caster angle is +3° to +5°, a caster trail is +20 to +30 mm, an intersection point between a kingpin axis and ground is located on an inner side in a vehicle width direction of a center of a tire contact patch, and an anhedral angle of a lower arm is +2.8° to +7.2°. Arear suspension includes five links and has geometry satisfying that a virtual kingpin axis extends near the center of a tire contact patch of a rear wheel assembly and extends vertically at ?2° to 0°.

Abstract: In a front suspension device for an automotive vehicle, in which wheel support members of right and left front wheels are coupled with each other via a steering unit, outer ends of two lower arms are pivotally attached to the wheel support members, and inner ends of two lower arms are pivotally attached to a vehicle body via a resilient member, there are provided a damping device equipped with a coil spring and attached to one of the two lower arms at its lower end and to the vehicle body at its upper end respectively, and a suppression (rotational torque absorption) device for suppressing a toe-change of the front wheels caused by a rotational torque applied according to extension and contraction of the coil spring of the damping device.

Abstract: In a front suspension device for an automotive vehicle, in which wheel support members of right and left front wheels are coupled with each other via a steering unit, outer ends of two lower arms are pivotally attached to the wheel support members, and inner ends of two lower arms are pivotally attached to a vehicle body via a resilient member, there are provided a damping device equipped with a coil spring and attached to one of the two lower arms at its lower end and to the vehicle body at its upper end respectively, and a suppression (rotational torque absorption) device for suppressing a toe-change of the front wheels caused by a rotational torque applied according to extension and contraction of the coil spring of the damping device.