Design of a Two-Inertia Control System using a Fictitious Exogenous Signal

In the vehicle development, it is important to shorten the development period of the powertrain components such as transmission and torque converter. To simulate real road loads of the powertrain components, it is necessary that the dynamometer of the drivetrain bench emulates the moment of inertia of a tire. To emulate the desired moment of inertia, controller parameters are calculated based on the system identification in a conventional scheme. In control of scheme, high accuracy of system identification is required. This paper proposes a data-oriented control system whose controller parameters are directly calculated without system identification. In the proposed scheme, the fictitious exogenous signal is calculated using closed-loop data, and controller parameters and system parameters are simultaneously obtained. Finally, the effectiveness of the proposed scheme is verified by using a numerical example.