Method for coordinated control of a vehicle engine and the automatic clutch for a torque reduction during a speed ratio change

A method for coordinated control of the electronically controlled vehicle engine power components and automatic electronically controlled clutch, installed in the transmission line of a vehicle during a torque reduction during a shift in the transmission of the transmission line. The control of the transmission line (14) (a) predetermined for the assisted clutch (12) a reference curve for the couple of clutch output (mdka, soll (t)) and (b) establishes a curve desired engine output torque (MDMA, soll (t)) corresponding to the desired curve of the torque clutch output (mdka, soll (t)).