Daimler Chrysler Ag

Daimler Ag

Manfred Treusch

Normann Freisinger

Roland Kemmler

Juergen Lang

A method and apparatus are provided for switching on and off the internal combustion engine which drives a vehicle by way of a manual transmission. The manual transmission is associated with a clutch for producing and releasing the frictional connection between the internal combustion engine and drive train. The clutch has a clutch operator for producing and releasing the frictional connection to the drive train. The clutch is actuable by a driver by way of a clutch pedal. A variable representing the engaging speed of the clutch operator is detected. If this variable exceeds a limit value, the starting of the internal combustion engine is interrupted.

Method and apparatus for switching on and off the internal combustion engine of a vehicle

A method for operating an internal combustion engine of a motor vehicle having an engine control unit and an exhaust-gas catalytic converter. In the invention, the engine control unit is used to switch off the internal combustion engine in an idling mode and/or in an overrun mode of the internal combustion engine, depending on the temperature of the exhaust-gas catalytic converter and an exhaust-gas temperature.

Growing community of inventors

Freiberg, Germany

Manfred Treusch