| 摘要 |
A brake force control device wherein in a case where an emergency braking operation is executed, a brake assist control is executed for generating a brake force greater than a brake force generated at the time of normal braking, wherein in a case where the variation ratio DELTA PM/C of the master cylinder pressure PM/C exceeds a first threshold value alpha , it is judged that the brake pedal is operated at high speed (102), wherein in a case where the brake operation is caused by a disturbance, the variation ratio DELTA PM/C decreases immediately thereafter, wherein in a case where the time needed for the variation ratio DELTA M/C to decrease to or below a second threshold value beta is shorter than a predetermined time T0, it is judged that the brake operation is caused by a disturbance such as a rough road or a stepped portion of a road, and the execution of the brake assist control is disabled (104, 108, 110, 112).
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