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. 11, 2003
Filed:
Oct. 11, 2002
Franz Kunz, Altmannstein, DE;
Wolfgang Stowasser, Regensburg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An actuator which is displaced by a force in one end position and is displaced into the other end position by an adjusting device that is controlled using a pulse duration modulated signal. If a quasi-stationary condition is identified, in which despite repeated control intervention the actual position of the actuator lies outside a targeted range around the desired position, the retaining pulse duty factor which is used by the adjusting device to main the actuator in one position is modified based on the distance from the desired position. If drift is identified, the drift behavior is determined and the retaining pulse duty factor is modified according to said drift behavior.