revolutions per minute cables 11 21 31 of the engine 1 clutch 2 and the transmission 3 as well as the engine load 12 and the gear shift position 32 from the transmission 3 and the flow of signals from the vehicle 7 including the foot brake 72 hand brake 71 and output speed signals and the desired driving condition taking the pedal and vehicle dynamics into consideration the gradient for the power change 46 is then extrapolated the engine load and engine speed change 47 result from another calculation while taking a consumption optimum and the vehicle dynamic frequency of shifting into consideration in another calculation the new transmission position 48 is calculated from the new engine speed then the signal output 49 for the influencing of the engine 41 influencing of the clutch 42 and influencing of the transmission 43 is produced the shifting process in shiftings of conventional automatic transmission is marked with the line p 1 to p 2 39 as shown the power in point p 2 39 after shifting is less than before thus the driver must compensate for the power difference with the gas pedal at the same time automatic transmissions shifted in that way tend toward gear shifting oscillation with unfavorable running resistances the shifting process with constant power is represented by the curve from p 1 to p 2 since the electronic controlling and regulating mechanism knows the gear multiplication that is available it selects the multiplication with which the most favorable consumption can be achieved at constant power for example thus gear shifting with the gear leap x is not carried out at constant torque but the automatic transmission takes over the readjustment range.