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    • 7. 发明专利
    • DE19814690C2
    • 2001-08-02
    • DE19814690
    • 1998-04-01
    • HONDA MOTOR CO LTD
    • IZAWA MASAKIOSHIDA KEISHIBUE HIDEAKI
    • B60G17/015B60G17/016B60G23/00B60G21/10B60T13/66B60T8/32B60T8/60B60K28/16
    • An active actuator is interposed between the unsprung mass and the sprung mass of a vehicle, and extended and retracted in a cyclic manner so as to apply a prescribed reaction to the unsprung mass during an extending stroke of the actuator. Thus, the additional contact load is applied to the tire in a cyclic manner over a desired period of time so that the gripping force of the tire can be increased over a desired period of time. Although the increase in the tire contact load and the reduction in the tire contact load occurs in an alternating, cyclic manner, it is possible to achieve an overall advantage for instance in reducing the braking distance by intermittently increasing the tire contact load of the rear wheels by detecting the braking action of the vehicle with a suitable acceleration sensor or the like. In particular, by setting a retracting stroke of the actuator substantially longer in time duration than an extending stroke of the actuator, it is possible to reduce the degree of the contact load reduction between each consecutive phase of contact load increase, and to achieve an even better overall result.