Installation for controlling a clutch in response to drive pedal position and engine speed

US4553654A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Gerd Bofinger · Stuttgart, DE
• Norbert Stelter · Rutesheim, DE
• Rainer Wuest · Wiernsheim, DE

Key dates

• Filing date: Mar 16, 1983
• Grant date: Nov 19, 1985
• Expiry date: Mar 16, 2003

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W30/1819
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An installation for the control of a motor vehicle drive unit which includes a reciprocating piston engine, a hydraulically actuated clutch and a transmission. A drive pedal pick-up controls the throttle valve and therewith the engine torque by way of a first characteristic curve converter while it applies a signal by way of a second characteristic curve converter a to a control apparatus, to which is also fed at the same time the engine rotational speed n. The control apparatus forms the product a.multidot.n.sup.2 and applies the same as output signal to the electromagnetic actuating mechanism of the hydraulic clutch so that the pressure thereof and also the torque in the clutch is proportional to the product a.multidot.n.sup.2.