Adaptive shift sequencing

US6874383B2 · kind B2 · utility

Assignee

• ZF Meritor, LLC · US

Inventors

• Robert Sayman · Eriskirch, DE
• James DeVore · Laurinburg, US
• Mario Steinborn · Friedrichshafen, DE
• Ronald Muetzel · Southern Pines, US
• Rupert Kramer · Friedrichshafen, DE

Key dates

• Filing date: Jun 23, 2003
• Grant date: Apr 5, 2005
• Expiry date: Jul 3, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19251
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The inventive transmission has at least two different shift modes for shifting between the same two gear ratios. A control unit electronically senses various vehicle conditions and based on this information selects the appropriate shift mode suited for the particular driving situation. The transmission then shifts from one gear ratio to another based on this selection.