Patent ID: 6076897
Filing Date: 2000-06-20
Classification: B60T

Abstract:
A hydraulic motor vehicle power brake system, comprising a hydraulic pump whose suction side is connected to a brake fluid reservoir and whose pressure side is connected to front and rear wheel brake cylinders, via inlet valves (22) each wheel brake cylinder is preceded by an auxiliary brake line (46) via a normally open block valve (48) which connects directly with the brake cylinders, and outlet valves (24) that connect the wheel brake cylinders to the brake fluid reservoir, an electronic control device, which receives electrical control signals from an adjustable brake power set-point transmitter (36) and from brake pressure sensors connected to the wheel brake cylinders, said electronic control device triggers the inlet valves and the outlet valves so that a brake pressure is adjusted in the wheel brake cylinders that is a function of a signal of the brake power set-pointer transmitter, the inlet valves (22) and the outlet valves (24) are identically embodied pressure limiting solenoid valves or pressure differential solenoid valves, both said inlet valves (22) and said outlet valves (24) are normally closed by prestressed closing springs (21), each of said closing springs (21) having the same closing force.