Force sensorless control of cutting resistance for NC machine tools by spindle motor control using variable pulse number T-method. - Teruaki Ishibashi; Hiroshi Fujimoto (IECON, 2013)

High-frequency-variation speed control of spindle motor for chatter vibration suppression in NC machine tools. - Teruaki Ishibashi; Hiroshi Fujimoto; Shinji Ishii; Kouji Yamamoto; Yuki Terada (ACC, 2014)