| 摘要 |
When a front wheel deceleration G calculated on the basis of the detected revolution speed (V) exceeds a slip detection threshold G1, the antilock brake control means (65) judges that the front wheel (WF) is put into a locked state, and dissolves the locked state by controlling and thus releasing the brake pressure produced in accordance with a manipulation by a rider. The antilock brake control system includes surface friction estimating means (66) configured to find an estimated deceleration Gs on the basis of a return acceleration (Gf) which occurs when the revolution of the front wheel (WF) returns in conjunction with the control and release of the brake pressure, the estimated deceleration Gs being based on at least how large road surface friction is, and the estimated deceleration Gs serving as a benchmark for ease with which the vehicle (1) pulls up. The antilock brake control means (65) calculates a target front wheel revolution speed Vm in accordance with the estimated deceleration Gs, and controls the brake pressure during the antilock brake control in order that the revolution speed (V) becomes equal to the target front wheel revolution speed (Vm). |
