Zf Friedrichshafen Ag

Gerald Karch

Matthias Winkel

Werner Wolfgang

Thomas Voss

Bernd M&uuml;ller

Bert Hellwig

A device for evaluating vehicle, driving and operating parameters of a vehicle, in order to adjust the gear ratio of a transmission according to predetermined algorithms, parameters, or characteristic diagrams, selects anew the gear to be adjusted and adjusts the same by way of an evaluation in dependence upon criteria that are specific to the transmission.

Device for evaluating vehicle, driving and operating parameters

The invention relates to a method for controlling a motor vehicle having electric drive mechanism, especially a city autobus, in which one or more wheels are driven by one electric motor and which is provided with an electric brake and a control circuit, wherein when a first defined threshold value (,) of the rotational speed (n) of the electric motor is exceeded, the drive torque (m) is cut back and is reduced down to zero when the rotational speed (n) continues to increase, and that when a second defined threshold value (,) of the rotational speed (n) which is higher than the first threshold value (,) is exceeded, the electric brake is engaged and as the rotational speed increases exerts a maximum brake torque when a limit value (,) is reached.

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Friedrichshafen, Germany

Gerald Karch