BRAKING HYDRAULIC PRESSURE CONTROLLER FOR VEHICLE

PURPOSE:To make braking force at the front side increasable according to movable load, by constituting a controller so as to make outlet side hydraulic pressure of a load responsive type hydraulic pressure control valve, controlling rear wheel cylinder hydraulic pressure, act on a control valve which controls front wheel cylinder hydraulic pressure. CONSTITUTION:An automobile installs a load responsive type hydraulic pressure control valve (LSPV)1 interposingly in a hydraulic pressure passage between a master cylinder 3 and a rear wheel cylinder 5, and also installs a control valve 2 so called as a P valve (proportioning valve) interposingly in a hydraulic pressure passage between the master cylinder and a front wheel cylinder 4. In this case, a fluid intake port 2-3 is installed in a plug 2b to be screwed in an open end of a cylinder body 2a of the control valve 2, while a fluid hole, where hydraulic pressure works, is installed in a plunger 8 inside the cylinder. And, this fluid intake port 2-3 is connected to an outlet 1-3 of the LSPV1, and hydraulic pressure out of this outlet 1-3 is made so as to act on the plunger 8.