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:
Feb. 15, 2011
Filed:
Oct. 22, 2005
Markus Klump, Buehlertal, DE;
Stefan Winkelmann, Buehl, DE;
Marian Preisner, Buehl, DE;
Reinhard Berger, Buehl, DE;
Markus Klump, Buehlertal, DE;
Stefan Winkelmann, Buehl, DE;
Marian Preisner, Buehl, DE;
Reinhard Berger, Buehl, DE;
Schaeffler Technologies GmbH & Co. KG, Herzogenaurach, DE;
Abstract
A method for diagnosing damage in the shift control actuator of an automated manual transmission, involving at least one of the following steps: (a) determining a shift control actuator is damaged if an actual period needed for synchronizing a gear differs from a nominal time period for synchronizing the gear; (b) moving a shift-control actuator to a limit stop after selection of a gear, and determining a shift-control actuator is damaged if the limit stop that has been reached is an internal limit stop of the shift-control actuator and not a gear transmission limit stop; (c) determining the shift-control actuator is damaged if an actual speed during the overlap phase is not within a speed range within which the engine speed is expected to lie during the overlap phase.