Automatic clutch with emergency strategy for speed sensor failure

US6058792A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Franz Kosik · Esslingen am Neckar, DE
• Thomas Grass · Neukirchen, DE

Key dates

• Filing date: Mar 25, 1999
• Grant date: May 9, 2000
• Expiry date: Mar 25, 2019

Classification

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

Abstract

An automatic clutch between a motor vehicle engine and drive train with a manually shifted gearbox disposed on the clutch output side. Rotational speed differences between the clutch input and output detected by sensor technology are taken into consideration when the clutch is engaged. If the signals from the sensing elements for the rotational speed on the output side fail, replacement signals are calculated from other parameters.