DRIVE TRAIN TESTING SYSTEM AND DRIVE TRAIN TESTING METHOD

摘要

The purpose of the present invention is to provide a drive train testing system whereby torque fluctuation in a real engine can be reproduced with good precision. A drive train testing system 1 is provided with an input-side dynamometer 2 connected to an input shaft WI of a test piece W which is a vehicle drive train, a torque command generation device 5 for generating a torque command signal for causing a torque resembling that of a vehicle engine to be generated by the input-side dynamometer 2, and a rotation detector 4 for detecting a motor machine angle corresponding to an absolute position from a reference position of a rotary shaft 21 of the input-side dynamometer 2. Using the motor machine angle detected by the rotation detector 4, the torque command generation device 5 generates a torque command signal fluctuating in synchrony with a signal having a period that is a predetermined degree multiple of the motor machine angle.