Hydraulic brake pressure control device for vehicle braking systems

摘要

An hydraulic brake pressure control device comprises an inertia-controlled valve for interrupting fluid communication between a master cylinder and rear wheel brake cylinders at a deceleration in excess of a predetermined value and a differential piston for gradually increasing the hydraulic pressure trapped within the wheel brake cylinders after the valve is closed. In this type of control device, resilient means is arranged to regulate axial movements of the differential piston in accordance with loaded conditions of the vehicle.