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. 10, 2001
Filed:
Jan. 25, 1999
Patrick Speicher, Oberteuringen, DE;
Ralf Vorndran, Eriskirch, DE;
Wolfgang Danz, Friedrichshafen, DE;
Udo Gillich, Meckenbeuren, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
In the process according to the invention for predetermining the ratio of a continuously variable transmission (,), a dynamic driving range is generated. The actual, minimum and maximum acceleration (a_akt, a_min, a_max) is calculated. Further detected is the driver's wish to accelerate or to decelerate (a_fwu) and an acceleration (a_vorg) is determined. Also calculated is a change of ratio per time unit of the continuously variable transmission (iV_pkt), which is guided by the engine speed of rotation during adjustment of the continuously variable transmission (,).