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    • 3. 发明申请
    • IMPROVEMENTS IN MOTOR CONTROLLERS
    • 电机控制器的改进
    • WO2014083338A3
    • 2015-05-14
    • PCT/GB2013053141
    • 2013-11-27
    • TRW LTD
    • DIXON CHRISTOPHER DAVIDHUXFORD ROBERT JAMES
    • G01D5/244H02P6/16
    • H02P6/16G01D5/244G01D5/24476H02P21/50
    • A method of estimating the position of a rotor of an electric motor comprises producing an output signal indicative of motor position using a position sensor which comprises a detector and at least one encoder which rotates along with the rotor of the motor and includes a plurality of encoding regions, the output signal of the sensor varying in a stepwise fashion as the encoding regions move past the detector, and passing the output of the sensor through a smoothing algorithm to produce an estimated position signal, the algorithm being arranged to smooth the transition between the steps in the output of the sensor by causing the estimated position signal to lag behind the output of the sensor following a step change in the output of the sensor.
    • 估计电动机的转子的位置的方法包括使用包括检测器的位置传感器产生表示电动机位置的输出信号,以及至少一个与电动机的转子一起旋转的编码器,并且包括多个编码 区域,传感器的输出信号随着编码区域移动通过检测器而以逐步的方式变化,并且通过平滑算法传递传感器的输出以产生估计的位置信号,该算法被设置为平滑 通过使传感器的输出的阶跃变化后的估计位置信号滞后于传感器的输出,传感器的输出的步长。