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公开(公告)号：US07126368B2
公开(公告)日：2006-10-24
申请号：US10942269
申请日：2004-09-16
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。
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公开(公告)号：US20080100238A1
公开(公告)日：2008-05-01
申请号：US11588568
申请日：2006-10-26
申请人： Robert Boyd Shaw
发明人： Robert Boyd Shaw
IPC分类号： H02P7/00
CPC分类号： H02P7/2913
摘要： A system and method for controlling a rotational speed associated with a shaft or rotor of an electric motor comprises establishing a target rotational speed associated with a shaft or rotor of an electric motor. A sensor detects an actual rotational speed associated with the shaft or rotor of an electric motor. Speed error data is determined. The speed error defined as a difference between the target rotational speed and the actual rotational speed. A first duty cycle factor is determined based on the speed error data and a first gain constant. A second duty cycle factor is determined based on the speed error data and a second gain constant. Duty cycle input data is calculated for the electric motor based on a sum of the first duty cycle factor, the second duty cycle factor, and the target speed.
摘要翻译： 用于控制与电动机的轴或转子相关联的转速的系统和方法包括建立与电动机的轴或转子相关联的目标转速。 传感器检测与电动机的轴或转子相关联的实际转速。 确定速度误差数据。 速度误差定义为目标转速与实际转速之差。 基于速度误差数据和第一增益常数来确定第一占空因数。 基于速度误差数据和第二增益常数来确定第二占空因数。 基于第一占空因数，第二占空因数和目标速度之和计算电动机的占空比输入数据。
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公开(公告)号：US07417389B2
公开(公告)日：2008-08-26
申请号：US11588568
申请日：2006-10-26
申请人： Robert Boyd Shaw
发明人： Robert Boyd Shaw
IPC分类号： H02P1/00
CPC分类号： H02P7/2913
摘要： A system and method for controlling a rotational speed associated with a shaft or rotor of an electric motor comprises establishing a target rotational speed associated with a shaft or rotor of an electric motor. A sensor detects an actual rotational speed associated with the shaft or rotor of an electric motor. Speed error data is determined. The speed error defined as a difference between the target rotational speed and the actual rotational speed. A first duty cycle factor is determined based on the speed error data and a first gain constant. A second duty cycle factor is determined based on the speed error data and a second gain constant. Duty cycle input data is calculated for the electric motor based on a sum of the first duty cycle factor, the second duty cycle factor, and the target speed.
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