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:
Jun. 09, 2026
Filed:
Dec. 03, 2024
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Sven Greger, Bergrheinfeld, DE;
Stefan Kissner, Hohenroth, DE;
Mariana-Claudia Voicu, Osnabrück, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method for controlling an adjustable vibration damper with an adjustable damping valve and work chamber connected to a hydraulic device comprising a pump and motor. A calculated resulting vibration damper supporting force comprises a passive damping force of the adjustable damping valve and an active actuating force of the hydraulic device. Based on an actuating force requirement of a controller unit at the vibration damper, pump and valve signals are determined for the adjustable damping valve. The pump and valve signals are determined based on an actuator characteristic diagram which comprises characteristic curves for actuating flows for actuating the adjustable damping valve. A pump characteristic curve is tangential to the characteristic curves representing the actuating flows for a determination of the pump and valve signals is made via a contact point of the pump characteristic curve with a current characteristic curve in combination with the actuating force requirement.