Arrangement for controlling a motor friction clutch

US5067599A · kind A · utility

Assignee

• Fichtel & Sachs · DE

Inventors

• Manfred Roder · Schweinfurt, DE
• Andreas Konrad · Haßfurt, DE

Key dates

• Filing date: Jul 2, 1990
• Grant date: Nov 26, 1991
• Expiry date: Jul 2, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/0087
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

For controlling a motor vehicle friction clutch (3) which is operated by an actuating drive (7) during parking maneuvers, an output adjusting device (19) of the internal combustion engine (1) is unaffected over a limited initial pedal travel (.alpha..sub.0) of the accelerator pedal (17). According to the pedal position at any given time, the actuating drive (7) of the clutch (3) is controlled within the initial pedal travel. According to the pedal position and in keeping with a predetermined first signal characteristic a desired torque signal is generated and the actuating drive (7) is positioned as a function of the desired torque signal and in keeping with a predetermined second signal characteristic. In the clutch position determined by the pedal position, an actual torque signal is generated which represents the torque of the internal combustion engine (1) and it is compared with the desired torque signal. If the torque signals deviate from each other, a predetermined and appropriately directed correction factor is added and the actuating drive (7) is subsequently controlled as a function of the altered second signal characteristic.