Robert Boschgmbh

Bram Veenhuizen

Karl-Heinz Senger

Peter Baeuerle

Engbert Spijker

Gert-Jan Van Spijk

Martin-Peter Bolz

Holger Hulser

J&uuml;rgen L&ouml;ffler

A method and device for operating a clutch between an internal combustion engine and at least one driven wheel of a vehicle, a torque being transmitted between the internal combustion engine and the driven wheel by pressing the clutch together via an application force or an application pressure, and the application force or the application pressure being controlled or regulated as a function of the temperature of the clutch.

Method and device for operating a clutch

A method and device for operating a clutch between an internal combustion engine and at least one driven wheel of a vehicle, a torque being transmitted between the internal combustion engine and the driven wheel by pressing the clutch together via an application force or an application pressure, and the application force or the application pressure being controlled as a function of a clutch slip in the clutch when the torque is transmitted between the internal combustion engine and the driven wheel and a setpoint clutch slip.

A drive unit for a vehicle including at least one drive wheel is provided, the drive unit having an internal combustion engine, and, between the internal combustion engine and the at least one drive wheel, a clutch for transmitting a torque between the internal combustion engine and the drive wheel, as well as a vehicle control for controlling or regulating the internal combustion engine as a function of the speed of the clutch on the side of the internal combustion engine and/or as a function of the speed of the clutch on the side of the drive wheel.

Drive unit for a vehicle

A method and device for operating a clutch between an internal combustion engine and at least one driven wheel of a vehicle, a torque being transmitted between the engine and the driven wheel by pressing the clutch together with a clamping force or a clamping load (p), and the clamping force or the clamping load (p) being adjusted as a function of an engine torque generated by the engine, and as a function of the inaccuracy of the information about the engine torque generated by the engine.

The invention proceeds from a system for adjusting a motor vehicle transmission, which is changeable in its transmission gear ratio, the transmission having an efficiency characteristic which is dependent on the transmission gear ratio. A first quantity is detected which represents the actual transmission output rpm and a second quantity is determined which represents a desired value for the drive torque. Then, a desired rpm of the vehicle engine is determined at least in dependence upon the detected first quantity and the determined second quantity and in dependence upon the efficiency characteristic of the transmission. The adjustment of the transmission gear ratio takes place in dependence upon the desired rpm of the vehicle engine which is so determined. With the invention, transmission influences are considered in the determination of the optimal transmission gear ratio within a system for the coordinated drive train control. The advantage, which results from the above, is the basic possibility to better adapt the drive train to the requirements by optimizing the total efficiency, the torque reserve and other optimizing criteria.

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Goirle, Netherlands

Bram Veenhuizen