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1. 发明授权

US5012166A Control system for brushless DC motor 失效
标题翻译：无刷直流电机控制系统
公开(公告)号：US5012166A
公开(公告)日：1991-04-30
申请号：US460990
申请日：1990-01-04
申请人： Nobuyoshi Ushijima , Hiroshi Masuda , Akira Ishibashi , Masahiko Satou , Toshiyuki Haruna , Norikazu Takayama , Yoshinobu Kudou
发明人： Nobuyoshi Ushijima , Hiroshi Masuda , Akira Ishibashi , Masahiko Satou , Toshiyuki Haruna , Norikazu Takayama , Yoshinobu Kudou
IPC分类号： G11B19/20 , G11B19/28
CPC分类号： G11B19/2009 , G11B19/28
摘要： A control method for brushless DC motor having a rotor, a plurality of magnetic poles and coils of a plurality of phases involves sequentially applying a current to one phase for a prescribed time, stopping the current temporarily and then reapplying the current to the same phase. The state of the rise of the current when it begins to flow to the phase, is measured. The position of one of the magnetic poles located at a position opposite to the particular phase is detected based on the measured state of the rise of the current. In response to the position of the magnetic pole, it is determined whether the flow of the current is to be switched over to the following phase or not. If so, the current is switched over the following phase and the process is repeated. Constant speed control may be accomplished by reading information from a driven disk to determine speed, comparing the speed to a fixed speed, and selectively applying by time sharing a normal current, a brake current and an acceleration current.
摘要翻译：具有转子，多个磁极和多相的线圈的无刷直流电动机的控制方法涉及顺序地向一相施加电流达规定时间，暂时停止电流，然后将电流重新施加到同一相位。测量当电流开始流向相的上升状态。基于测量的电流上升的状态，检测位于与特定相位相反的位置的一个磁极的位置。响应于磁极的位置，确定电流的流动是否切换到后续阶段。如果是，则将电流切换到以下阶段，并重复该过程。可以通过从驱动盘读取信息来确定速度，将速度与固定速度进行比较，并且通过分配正常电流，制动电流和加速电流的时间选择性地施加来实现恒速控制。

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