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:
Aug. 12, 2003
Filed:
Jun. 01, 2001
Joachim Klesing, München, DE;
Webasto Dachsysteme GmbH, Stockdorf, DE;
Abstract
A process for adjusting a motor vehicle part between at least two positions and a drive device for executing this process. The motor vehicle part is driven by an electric motor. A pulse signal is generated according to the rotary motion of the electric motor ( ) and is supplied to a control unit ( ) for controlling the electric motor ( ). The instant of input of each signal on the control unit ( ) is acquired and between two such input instants at certain extrapolation instants from at least some of these measured instants the current force acting on the motor vehicle part is estimated, this estimate being used as the criterion in the decision whether the electric motor ( ) is turned off or reversed or not.