Patent ID: 6149250
Filing Date: 2000-11-21
Classification: B60T,Y10S

Abstract:
A hydraulic automotive vehicle brake system comprising:a pedal-operated master cylinder connected to a supply reservoir; at least one brake circuit including at least one brake wheel, wherein at least one wheel brake is connected to the master cylinder by way of a brake line; a return pump for each brake circuit with a suction side and a pressure side which returns pressure fluid discharged from the wheel brake in an anti-lock control operation into the brake line; and a precharging pump with a suction side and a pressure side which generates a pilot pressure on the suction side of the return pump during automatic braking operations, wherein the pressure side of the precharging pump includes a pressure line means for connecting the pressure line to the master cylinder without any intervening valve components positioned therebetween, wherein the pressure line means is hydraulically coupled into the brake line at a junction point that is so remote from the master cylinder that a sufficient pilot pressure for the return pump develops due to throttling effects which are caused in the brake line between the junction point and the master cylinder.