| 摘要 |
PROBLEM TO BE SOLVED: To suitably reduce a braking distance of a vehicle by using an enhancement effect of the friction coefficient of a wheel upon applying longitudinal vibration to the wheel. SOLUTION: In the vehicle 10 having an active suspension mechanism 400 for varying a vertical load of the wheel, an ECU 100 executes anti-lock control. By the control, the active suspension mechanism 400 applies vertical vibration to the vehicle 10 when the vehicle 10 is in a quick braking state. On the other hand, when estimating a peak slip ratio SLpk for estimating a peak slip ratio SLpk of a maximum tireμbased on timing when a slip ratio SL exceeds a reference value and timing when vehicle vibration is started, the ECU 100 rewrites an ABS threshold based on the peak slip ratio SLpk. COPYRIGHT: (C)2011,JPO&INPIT
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