公开(公告)号：US07126368B2

公开(公告)日：2006-10-24

申请号：US10942269

申请日：2004-09-16

申请人： John David Paulson ,  Brian Frederick Boeshans ,  Jeffrey Gerald Hopman ,  Robert Boyd Shaw

发明人： John David Paulson ,  Brian Frederick Boeshans ,  Jeffrey Gerald Hopman ,  Robert Boyd Shaw

IPC分类号： G01R31/34

CPC分类号： G01R31/343 ,  H02H7/0833 ,  H02H11/005

摘要： A system and method detects coil-to-coil faults in an electric motor having a plurality of coils. The method includes applying a square wave signal to a first coil of the motor, connecting a capacitor and a resistor between ground potential and a second coil of the motor, applying the coil output voltage to an amplifying and peak detecting circuit, applying an output of the amplifying and peak detecting circuit to the input of the control unit and, after a delay period, generating a motor fault signal if the coil output voltage is below a predetermined threshold. The square wave signal is amplified by a circuit which prevents transmission of voltage signals from the coils to the output of the control unit during normal operation of the motor.

摘要翻译： 一种系统和方法检测具有多个线圈的电动机中的线圈到线圈故障。 该方法包括将方波信号施加到电动机的第一线圈，将电容器和电阻器连接到电动机的地电位和第二线圈之间，将线圈输出电压施加到放大和峰值检测电路， 放大和峰值检测电路连接到控制单元的输入，并且在延迟周期之后，如果线圈输出电压低于预定阈值，则产生电动机故障信号。 方波信号由电路放大，该电路在电动机的正常运行期间防止电压信号从线圈传递到控制单元的输出。