| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a brake hydraulic pressure control device capable of accurately acquiring a vacuum. <P>SOLUTION: This brake hydraulic pressure control device 1 includes: a hydraulic pressure acquisition section 82 acquiring master cylinder hydraulic pressure Pmc as the hydraulic pressure of a master cylinder; a pressing force acquisition section 83 acquiring a pressing force F on a brake pedal; a vacuum booster increasing an input into the master cylinder for the pressing force F by increasing, by the vacuum, the pressing force F when the brake pedal is operated to be braked; and a vacuum estimation section 90 estimating the vacuum used for the vacuum booster based on the master cylinder hydraulic pressure Pmc acquired by the hydraulic pressure acquisition section 82 and the pressing force acquired by the pressing force acquisition section 83. <P>COPYRIGHT: (C)2009,JPO&INPIT |
