A magnetic flux-based position sensor for control of an electromechanical VVT actuator. - Ryan R. Chladny; Charles Robert Koch (ACC, 2006)

Flatness-Based Tracking of an Electromechanical Variable Valve Timing Actuator With Disturbance Observer Feedforward Compensation. - Ryan R. Chladny; Charles Robert Koch (IEEE Trans. Control. Syst. Technol., 2008)