| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a suspension system for a vehicle high in practicability. Ž<P>SOLUTION: This system in which a suspension spring and an approaching and separating force generator to generate approaching and separating force free to control is constituted to carry out vibration damping control to make at least a part of the approaching and separating force work as damping force against vibration of a sprung part in size corresponding to sprung speed and to make a part of the approaching and separating force work as force to increase unsprung displacement in size corresponding to unsprung displacement quantity when a direction of motion of the sprung part (full line arrow) and a direction of an unsprung part (dotted line arrow) are different from each other in carrying out the vibration damping control. According to such a system, it is possible to restrain lowering of road holding of a wheel by preventing lowering of a following property of the unsprung part to a road surface even when the motion of the unsprung part is obstructed by the approaching and separating force (dashed line arrow). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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