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:
Mar. 22, 2016
Filed:
Mar. 13, 2012
Eckehard Münch, Friedrichshafen, DE;
Uwe Heitz, Markdorf, DE;
Mauro Zanella, Friedrichshafen, DE;
Manfred Sieger, Freudenstadt, DE;
Jörg Geis, Markdorf, DE;
Eckehard Münch, Friedrichshafen, DE;
Uwe Heitz, Markdorf, DE;
Mauro Zanella, Friedrichshafen, DE;
Manfred Sieger, Freudenstadt, DE;
Jörg Geis, Markdorf, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
The shift sequence for a transmission ratio change of a vehicle drive train is determined depending on an operating state of the vehicle drive train existing upon the actual transmission ratio of the transmission device. The operating state is characterized by various operating state quantities of the vehicle drive train, which represent input quantities of a model representing the vehicle drive train. Output quantities of the model supply at least one target value that determines the shift sequence in terms of characterization and application as input quantities of an optimization routine, by which a minimization of the functional connection of at least one target value is carried out. The torque characteristics representing the shift sequence of devices of the vehicle drive train are determined depending on the minimum of the functional connection of at least one target value, taking into account the limits of the operating state quantities.