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, 2008
Filed:
Aug. 31, 2005
Frank Stengel, Buehl-Neusatz, DE;
Alexander Schweizer, Buehl, DE;
Martin Zimmermann, Sasbach, DE;
Behzad Nazari, Nuertingen, DE;
Joachim Hirt, Oberkirch, DE;
Martin Fuss, Karlsruhe, DE;
Matthias Ehrlich, Buehl, DE;
Jens Martin, Sinzheim-Kartung, DE;
Frank Stengel, Buehl-Neusatz, DE;
Alexander Schweizer, Buehl, DE;
Martin Zimmermann, Sasbach, DE;
Behzad Nazari, Nuertingen, DE;
Joachim Hirt, Oberkirch, DE;
Martin Fuss, Karlsruhe, DE;
Matthias Ehrlich, Buehl, DE;
Jens Martin, Sinzheim-Kartung, DE;
LuK Lamellen und Kupplungsbau Beteiligungs KG, Beuhl, DE;
Abstract
To improve the safety of automated gearboxes, it is proposed that terminal positions of internal gearshift members and external actuation members be so defined separately from each other that one can recognize whether the engagement of a speed is accompanied by the attainment of a terminal position of an internal gearshift member or an external actuation member. Error analysis is possible in this way. For dual clutch gears, it is additionally proposed that one can, at least in gearshift operations that are critical in terms of safety, disengage on speed of a subgear in a separate procedure, before a new speed of this subgear can be engaged.