Method for controlling a load machine during a test run with a drive train and test stand

摘要

The present teaching includes a speed control of a side shaft of a drive train connected to a dynamometer on a drive train test stand in which a torque (M_Fxi) caused by the longitudinal force (F_Xi) calculated in a simulation model is additionally transferred to the control unit, and from this a compensation torque (M_Ki) is calculated in the control unit as a function of the longitudinal force (F_Xi) caused by the torque (M_Fxi) and a deviation (A_Ji) between a moment of inertia (J_Bi) of the dynamometer and a moment of inertia (J_Ri) of the simulated vehicle wheel, the control unit calculates a torque (M_REi,) from the setpoint speed (n_Bi,set) with a speed controller and a torque (M_Bi,soll) to be set with the dynamometer is calculated as the sum of the compensation torque (M_Ki) and the torque (M_REi) calculated by the speed controller and set by the dynamometer.