| 摘要 |
PROBLEM TO BE SOLVED: To obtain large deceleration even if pressure control of rear wheels is started early to prevent rear wheel preceding lock, in performing braking force distribution control. SOLUTION: Based on a difference of response speed between a signal passed through first and second filters having different filter constants and indicating estimated vehicle body deceleration and deceleration indicated by a detection signal of a G sensor, it is determined whether or not rapid stepping, that is, quick pedaling is performed. In the quick stepping state, even when an upper limit value of W/C pressure of the rear wheels RL, RR to prevent rear wheel preceding lock is determined, the W/C pressure is increased so as to exceed the upper limit value. Thus, compared with the case where the W/C pressure of the predetermined upper limit value is generated, larger deceleration can be obtained. COPYRIGHT: (C)2007,JPO&INPIT
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