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:
Apr. 10, 2012
Filed:
Oct. 29, 2007
Axel Nieder-vahrenholz, Eschborn, DE;
Christian Courth, Frankfurt, DE;
Fabian Wey, Karlsruhe, DE;
Jochen Klein, Darmstadt, DE;
Jan Hoffmann, Rosbach, DE;
Harald Biller, Eschborn, DE;
Marcus Forche, Frankfurt, DE;
René Lenz, Frankfurt am Main, DE;
Axel Nieder-Vahrenholz, Eschborn, DE;
Christian Courth, Frankfurt, DE;
Fabian Wey, Karlsruhe, DE;
Jochen Klein, Darmstadt, DE;
Jan Hoffmann, Rosbach, DE;
Harald Biller, Eschborn, DE;
Marcus Forche, Frankfurt, DE;
René Lenz, Frankfurt am Main, DE;
Abstract
The invention relates to a proportional control valve for the variable hydraulic adjustment of the damping force of a shock absorber, for which purpose the proportional control valve has a throttle function which can be set by varying the strength I of the electric current. The invention provides that on the basis of an instantaneous level of the electrical current Iist the proportional control valve is first closed by increasing the current to a maximum current strength Ifor a short time period tin order to change the damping force F, and the proportional control valve is then opened again by reducing the current strength I to a defined average current strength I in which the proportional valve assumes an intermediate position which results in a volume flow Q which corresponds to the desired change in the damping force F.