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. 26, 2008
Filed:
Feb. 11, 2005
Marian Preisner, Buhl, DE;
Marian Preisner, Buhl, DE;
LuK Lamellen und Kupplungsbau Betelligungs KG, Buehl, DE;
Abstract
The invention relates to a method for controlling a gear shift, especially a pulling upshift in a parallel-shift transmission of a vehicle, said parallel-shift transmission having two transmission branches situated parallel to each other between an output shaft of a driving engine of the vehicle and a transmission output shaft, whereby an input shaft of each transmission branch is coupleable to the output shaft via a clutch assigned thereto and the input shaft of each transmission branch may be brought into rotationally fixed engagement with the output shaft having at least one prescribed gear ratio so that by disengaging the one clutch and engaging the other clutch a pulling-force-interruption-free change of the gear ratio between the engine output shaft and the transmission output shaft is possible, in which method during a gear ratio change the torque transmissible by the clutches is regulated in a controlled, prescribed manner and the load of the driving engine is regulated in such a manner that a prescribed slip of the clutches is maintained.