Limp home device for a vehicle with automatic transmission

US6948395B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Georg Gierer · Kreßbronn, DE
• Christian Popp · Kreßbronn, DE
• Klaus Steinhauser · Kreßbronn, DE
• Peter Schiele · Kreßbronn, DE

Key dates

• Filing date: May 14, 2003
• Grant date: Sep 27, 2005
• Expiry date: Sep 17, 2023

Classification

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

Abstract

A device to allow for emergency operation of an automatic-transmission motor vehicle, having a monitoring device to monitor pre-determined operating parameters, a diagnostic device to detect faults, a control device to activate an alternative function, and an output device by means of which the fault may be presented to the driver. The control device provides the driver an emergency operation capability while providing an alternative function depending on the degree of the fault.