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:
Nov. 05, 2013
Filed:
Jan. 08, 2009
Andreas Neu, Kuhardt, DE;
Ralph Gronau, Wetter, DE;
Holger Kollmann, Mainhausen, DE;
Peter Leska, Dietzenbach, DE;
Jörg Berntheusel, Neu-Anspach, DE;
Tobias Franke, Königstein, DE;
Michel Wagner, Darmstadt, DE;
Jusuf Muratoski, Mühlheim, DE;
Artur Kost, Bad Soden, DE;
Dieter Burkhard, Bingen-Büdesheim, DE;
Andreas Neu, Kuhardt, DE;
Ralph Gronau, Wetter, DE;
Holger Kollmann, Mainhausen, DE;
Peter Leska, Dietzenbach, DE;
Jörg Berntheusel, Neu-Anspach, DE;
Tobias Franke, Königstein, DE;
Michel Wagner, Darmstadt, DE;
Jusuf Muratoski, Mühlheim, DE;
Artur Kost, Bad Soden, DE;
Dieter Burkhard, Bingen-Büdesheim, DE;
Continental Teves AG & Co. oHG, Frankfurt, DE;
Abstract
A control valve conditioning method in an electrohydraulic pressure control unit comprising at least one electrically triggered solenoid valve that is controlled in an analog manner. The solenoid valve is operated at a specific operating current according to a functional correlation or characteristic diagram between the valve current and the differential pressure characteristic curve when the pressure is controlled, said functional correlation or characteristic diagram being stored in the pressure control unit. The method comprises the following steps: a) temporarily applying at least one anti-hysteresis pulse to the solenoid valve during which a current is set far below or far above the operating current in the valve; b) applying the anti-hysteresis pulse at the desired operating current before or during controlled operation, and c) applying the anti-hysteresis pulse wherein the duration is limited in such a way that the anti-hysteresis pulse has largely no influence on the brake pressure.