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. 21, 2009
Filed:
Jun. 18, 2004
Roland Karrelmeyer, Bietigheim-Bissingen, DE;
Sven Wolfgarten, Tienen, DE;
Jean-sebastien Knaus, Roeschwoog, FR;
Roland Karrelmeyer, Bietigheim-Bissingen, DE;
Sven Wolfgarten, Tienen, DE;
Jean-Sebastien Knaus, Roeschwoog, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method and system for determining the point of engagement of a clutch of a motor vehicle operable via an actuating device, where the actuating device has an electrically drivable positioning motor that is operationally linked to an actuating mechanism which actuates the clutch and operates via a control unit. The point of engagement is determined through an application of a constant voltage to the positioning motor in a first operating mode. The motor speed is detected as a function of the rotational angle position. The motor current is detected as a function of the rotational angle position, and/or by application of a constant current to the positioning motor in a second operating mode. The point of engagement is determined from the detected values of the motor speed, that are a function of the rotational angle position and from the values of the motor current.