Kaoru Ishikawa, Taro Nakamura, Hisashi Osumi,Reliable Control Using Equivalent Transfer Function for Position Servo System in Current Loop Failure,The 34th Annual Conference of the IEEE Industrial Electronics Society (IECON2008), TT-1,pp.333-337, 2008.
Kaoru Ishikawa, Taro Nakamura, Hisashi Osumi,Reliable Control During Current Loop Failure Using ETF for Position Servo System including Disturbance Observer,The 2009 IEEE International Conference on Robotics and Automation (ICRA2009), FrC8.4, 2009.