Daimler Ag

Detlef Fuchs

Lothar Rehm

Thomas Von Raumer

An actuation system for a drive unit of a motor vehicle includes a control unit which is assigned to the drive unit and which has a function level, a function monitoring level, and having a power output stage for actuating the drive unit or actuators or sensors which are assigned to the drive unit. To relieve the function a data transmission device for outputting data to a data bus is arranged in the function monitoring level. The data transmission device can output a drive setpoint torque to the drive unit, to actuators or sensors which are assigned to it, or to a power output stage (') of a separate, second drive unit.

Actuation system for a drive unit of a motor vehicle

The invention relates to an actuation system for a drive unit of a motor vehicle, having has a drive control unit which is assigned to the drive unit and which has a function level and a function monitoring level. A (), a first data transmission device () which is arranged in the function level (), of the drive control unit and is connected to a separate external control unit via a first communication path via which a predefined setpoint torque (Msoll) can be forwarded from the external control unit to the first data transmission device. In addition, the drive control unit also has a second data transmission device which is likewise additionally connected to the external control unit via a second communication path. The same predefined setpoint torque can also be forwarded from the external control unit to the second data transmission device via the second communication path.

Growing community of inventors

Ludwigsburg, Germany

Detlef Fuchs