Starter release

US8463516B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Alexander Schweizer · Laufenburg (Baden), DE
• Frank Stengel · Bühl, DE
• Martin Fuss · Karlsruhe, DE
• Matthias Ehrlich · Laufenburg (Baden), DE
• Behzad Nazari · Leverkusen, DE
• Jens Martin · Frankfurt am Main, DE
• Joachim Hirt · Oberkirch, DE
• Martin Zimmermann · Sasbach, DE

Key dates

• Filing date: Dec 7, 2005
• Grant date: Jun 11, 2013
• Expiry date: Jun 2, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2500/5108
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A process and device for controlling a motor vehicle with an initialization device (43) for startup and a clutch actuated by means of a clutch actuator set (45) between a drive unit and a gear with a control device (41) by means of which at least one control of the clutch actuator set (45) and an acquisition of measurement data of a sensor (47) takes place for the purpose of determining the position of the clutch, characterized in that to verify the state “clutch open” upon startup, a positioning of the clutch actuator set (45) that has been set and stored before or during shutdown is compared to a positioning that was acquired during a predetermined movement course of the clutch actuator set (45) after startup by means of a distance measurement, which takes place at least in a segment of that movement course, whereby the state “clutch open” is recognized, in particular, when the magnitude of the comparison is within a predetermined tolerance range. By means of the invention one can further reduce the probability of the setting into motion of a motor vehicle after startup, which is critical in terms of safety.