Method and apparatus for diagnosing a malfunction of a clutch actuator

US6849027B2 · kind B2 · utility

Assignee

• LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

• Jurgen Eich · Bühl, DE
• Klaus Kupper · Bühl, DE
• Alexander Schweizer · Laufenburg (Baden), DE
• Ralf Enderlin · Bühl, DE
• Thomas Jager · Meckenbeuren, DE
• Martin Vornehm · Neu-Anspach, DE

Key dates

• Filing date: Dec 12, 2003
• Grant date: Feb 1, 2005
• Expiry date: Dec 12, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S477/906
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a method and apparatus for diagnosing a malfunction in a clutch actuator of a motor vehicle, the actual position of the clutch actuator is measured by a position sensor. Simultaneously, an estimated position of the clutch actuator is calculated by an emulation unit that emulates the function of the clutch actuator. Malfunctions of the clutch-actuator are diagnosed by comparing the actual, measured position to the estimated position.