Volkswagen Ag

Zf Lemforder Metallwaren Ag

Rolf Bosse

Wolfgang Kliemannel

A sensor system is provided for a control device of an automatically shiftable transmission and/or with automatic manually shifted transmission. The system includes a shift selector lever movable in at least one shift gate for setting at least the positions Forward, Neutral, reverse, and park (stop). A position for manual shifting may also be provided for access to at least one position for the manual upshifting and/or a position for the manual downshifting of the gears of the transmission. A first sensor element is associated with each possible position. A first signal transmitter is arranged at the shift selector lever to detect the position of the shift selector lever. The first sensor elements and/or the first signal transmitter are arranged to detect a positioning of the shift selector lever at least between the positions Forward, Neutral and/or Reverse.

Sensor system for the control of an automatic transmission

A control system controls operation of a vehicle drive train during acceleration to avoid regions of engine torque and speed which result in high emissions. The system responds to operator control signal, engine speed signals and optionally engine temperature signals and provides output signals to control the fuel injection to thereby control engine torque.

Drive train control of a vehicle having continuously variable transmission

In a method for online management of a drive train of a motor vehicle having a CVT transmission, in order to establish the engine speed for a required power output, a path through a predetermined composite performance graph&mdash;in which a performance quality characteristic is plotted as a function of power output and engine speed&mdash;is identified online, said path being optimal with respect to predetermined optimization criteria.

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Wolfsburg, Germany

Rolf Bosse