Patent ID: 7938495
Filing Date: 2011-05-10
Classification: B60T

Abstract:
1. A motorcycle brake system, comprising: a brake operating unit for generating hydraulic pressure in a master cylinder; a braking unit for applying a braking force corresponding to a supplied hydraulic pressure to a wheel; a first on-off valve for blocking a brake passage connecting the brake operating unit and the braking unit, thereby isolating a portion on the brake operating unit side of the brake passage and a portion on the braking unit side of the brake passage from each other; a first hydraulic sensor which is provided on the brake operating unit side of the brake passage and for detecting hydraulic pressure; a modulator for supplying a predetermined amount of hydraulic pressure to the braking unit based on a result of detection by the first hydraulic sensor; and a hydraulic loss simulator for supplying a reaction force to the brake operating unit when the brake passage is blocked, the motorcycle brake system allocating said braking force to front and rear wheels by controlling the modulator based on a result of detection by the first hydraulic sensor; wherein the brake operating unit has a switch for detecting starting of operation thereof; and wherein the first on-off valve blocks the brake passage based on a result of detection by the switch and unblocks the brake passage when a predetermined amount of time elapses, the brake switch outputs an ON signal, and a predetermined minimum detectable pressure is not detected by said first hydraulic sensor.