A method for regulating an electromechanically power-splitting hybrid
drive system of a motor vehicle, having an internal combustion engine and
two electric motors that are coupled by way of a transmission, as well as
an electromechanically power-splitting hybrid drive system for a motor
vehicle. It is proposed that, based on coupling conditions of the
transmission, respective target rotation speeds and target torques be
calculated for the internal combustion engine and the two electric
motors; that the respective target rotation speeds be compared with
corresponding actual rotation speeds of the internal combustion engine
and of the electric motors; and that in the case of a system deviation
between one of the actual rotation speeds and the corresponding target
rotation speed, one or more additional torques be calculated on the basis
of the system deviation and be taken into account, in addition to the
target torque or torques calculated by the control system, in controlling
the torque of the internal combustion engine and of the two electric
motors.