总结了无刷直流电动机中仍有待进一步深入研究的5 个主要问题, 包括脉动、最佳换向、无位置传感器的转子位置检测、控制算法、抗干扰等。 关键词: 无刷直流电动机; 研究; 无位置传感器; 转子位置检测 Abstract: Th is paper generalizes five p rimary p roblem s wo rthy to be further reseached fo r brush less DC mo to r. These p roblem s are to rque ripp le, op t imal commutat ion, senso rless ro to r po sit ion sensing, cont ro l algo rithm, ant i - interference. Key words:BLDCM; research; senso rless; ro to po sit ion sensing