| 摘要 |
PROBLEM TO BE SOLVED: To generate high braking force by providing a first wheel braking force generation means generating braking force in accordance with a first main pressure in a first/second wheel, on the other hand, providing a second wheel braking force generation means generating braking force in accordance with a second main pressure in a third/fourth wheel. SOLUTION: As a brake fluid pressure generation means, brake pedal 1, booster 2, master cylinder 3, etc., are provided, in both end parts of a first piping system A extended from the master cylinder 3, a wheel cylinder (first wheel braking force generation means) 4, 5 related to a right/left front wheel FL, FR provided. In a pipe line to a location branching from the master cylinder 3 or the piping system A, a proportional control valve 10 is interposed, in parallel thereto, a pump 11 is arranged, a pressure magnifying means is constituted. A second piping system B is provided so as to connect a third/force wheel cylinder (second wheel braking force generation means) 6, 7 to the master cylinder 3 and right/left rear wheels RL, RR. |
