Patent ID: 9643580
Date: 2017-05-09
CPC Classifications: B60T

Claim:
1. Brake system for a land vehicle, comprising: at least one wheel brake to be assigned to a wheel of the land vehicle; a pump having a variable capacity, which is configured to deliver hydraulic fluid from its input side to its output side; at least one accumulator for receiving hydraulic fluid; a hydraulic connection between the accumulator and the input side of the pump; at least one first valve arrangement for blocking a hydraulic connection between the output side of the pump and the at least one wheel brake; at least one second valve arrangement for blocking a hydraulic connection between the at least one wheel brake and the input side of the pump; at least one third valve arrangement for blocking a hydraulic connection between the output side of the pump and the accumulator; wherein the hydraulic fluid selectively delivered by the pump from the at least one wheel brake directly into the accumulator, with the result that brake pressure in the at least one wheel brake is reduced, and that the hydraulic fluid is selectively delivered from the accumulator into the at least one wheel brake, with the result that brake pressure in the at least one wheel brake is built up, wherein the pressure build-up and the pressure reduction in the at least one wheel brake is controlled by opening or closing the at least one third valve arrangement so that, when the third valve arrangement is open, brake pressure in the at least one wheel brake is reduced and, when the third valve arrangement is closed, brake pressure in the at least one wheel brake is built up.