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:
Jul. 05, 2011
Filed:
Apr. 26, 2006
Armin Gierling, Langenargen, DE;
Friedemann Jauch, Tettnang, DE;
Franz-josef Schuler, Kressbronn, DE;
Michael Kiefer, Tettnang, DE;
Armin Gierling, Langenargen, DE;
Friedemann Jauch, Tettnang, DE;
Franz-Josef Schuler, Kressbronn, DE;
Michael Kiefer, Tettnang, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
Described is a method for controlling a transmission for motor vehicles, especially an automatic transmission or an automatic gearbox, where a gear ratio (') is adjusted according to operating conditions by means of pre-determined shifting programs ('', “Eco', “Normal”, “Sport”, “Mountain II”, “Warm-up”, “Tip”) and corresponding specific shifting values (HS, RS) and where in relation to a vehicle's actual operating condition at least one special function (“Curve Recognition KE”, “Rapid Drive Pedal Release FO”, “Spontaneous Delay Vehicle SVF”, “Drive Speed Control FGR”, “Drive Dynamic control ESP”) is activated, which prevents the change from an actual gear ratio to a target gear ratio requested by a shifting program within a pre-determined operating range of a vehicle. In a first version of the method, the operating range, wherein a gear ratio change of the transmission is prevented, is changed in relation to applied specific values that depend on the operating condition. In a second version of the method it is planned that the shifting characteristics are changed in relation to applied specific values that depend on the operating condition in such a manner that the operating points of the vehicle that are defined on the side of the shift characteristics, for which gear ratio changes must be performed, are adjusted to the actual operating condition of the vehicle.