The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2023
Filed:
Dec. 16, 2020
Zf Active Safety Gmbh, Koblenz, DE;
Andreas Passmann, Hilgert, DE;
Stefan Kraemer, Illerich, DE;
ZF Active Safety GmbH, Koblenz, DE;
Abstract
A hydraulic motor vehicle brake system is specified with a device for generating a hydraulic fluid pressure. The device comprises an electrically controllable actuator and a piston in a pressure chamber, which is movable by means of the electrically controllable actuator for changing a hydraulic fluid pressure in the pressure chamber. The brake system also comprises a wheel brake pressure control device with a reservoir for the storage of hydraulic fluid discharged from a motor vehicle wheel brake in a pressure reduction phase, wherein the reservoir is fluidically coupled to the pressure chamber. A control system of the brake system is designed to output a control signal for the actuator in the event of a detected loss of function of the control device and in the event of a detected critical filling volume of the reservoir with hydraulic fluid during operation of the control device, which causes the piston to be driven back for pressure reduction in the pressure chamber with suction of hydraulic fluid from the reservoir.