Abstract: In the process for optimizing operation of a group of agricultural machines a controlling processor, which exchanges data telemetrically with on-board processors of agricultural machines and devices, optimizes the internally optimized control cycles of the individual on-board processors and transmits controlling data to the on-board processors, which it has determined from collective scanning of operating data transmitted to it from the entire group of agricultural machines. Overloading of available data transmission capacity and excessively large memory capacity requirements are avoided by a special categorizing of data and an advantageous selection of memory locations for the resulting data.

Abstract: A propulsion unit, preferably a propulsion unit for a utility vehicle, as well as a method for controlling same are disclosed. The propulsion unit comprises an engine, a transmission and a power take-off unit having a power take-off shaft. A first fraction of the engine output power is directed to the transmission, whereas a second fraction is directed to the power take-off shaft. At least one of the power fractions is detected by means of measuring units. The power fraction transmitted to the transmission is limited to a predetermined limit value. It is, therefore, possible to install a propulsion unit with an engine, the output power of which being higher than the admissible input power of the transmission.