Operation mode scheduling and fault diagnosis for a motor/gear subsystem

The motor/gear subsystem of a typical EP printer is considered in this paper. In spite of servo control having been developed for this subsystem in the literatures, few have studied the equally pertinent issues of operation mode scheduling and fault diagnosis. In accordance with such motivation, a control architecture is proposed for this subsystem which comprises a servo layer of control and a supervisory layer of control. This work will focus on design of a set of supervisory and fault detecting programs which reflect the practical need of operating this subsystem. Feasibility and effectiveness of the proposed design are verified via both numerical simulation and experiment corresponding to the motor/gear subsystem within a typical EP printer.