公开(公告)号：US20060164030A1

公开(公告)日：2006-07-27

申请号：US11337093

申请日：2006-01-23

申请人： Yukinobu Kujira ,  Takahiro Inayoshi ,  Tokuhisa Takeuchi

发明人： Yukinobu Kujira ,  Takahiro Inayoshi ,  Tokuhisa Takeuchi

IPC分类号： H02P25/12

CPC分类号： H02P25/12

摘要： A motor actuator for actuating a driven member includes a control unit and a brushless motor, which includes a coil, a magnet and a hall element. The coil generates a magnetic field when being energized. The magnet rotor is rotatable in the magnetic field generated by the coil. The hall element detects a variation in the magnetic field due to rotation of the magnet rotor. Then, the hall element outputs an output signal according to the variation in the magnetic field. The control unit detects a relative position between the magnet rotor and the coil based on the output signal outputted from the hall element, and controls energization of the coil based on the relative position. Furthermore, the control unit detects a location of the driven member, and controls the brushless motor to drive the driven member based on a rotation amount of the magnet rotor.

摘要翻译： 用于致动从动构件的电动机致动器包括控制单元和无刷电动机，其包括线圈，磁体和霍尔元件。 线圈在通电时产生磁场。 磁体转子可以在由线圈产生的磁场中旋转。 霍尔元件检测由于磁体转子旋转引起的磁场变化。 然后，霍尔元件根据磁场的变化输出输出信号。 控制单元基于从霍尔元件输出的输出信号来检测磁体转子与线圈之间的相对位置，并根据相对位置来控制线圈的通电。 此外，控制单元检测从动构件的位置，并且基于磁体转子的旋转量来控制无刷电动机来驱动从动构件。