公开(公告)号：US20120010849A1

公开(公告)日：2012-01-12

申请号：US13201403

申请日：2010-12-27

申请人： Masahiro Yamada

发明人： Masahiro Yamada

IPC分类号： G06F15/00

CPC分类号： G01D5/2073 ,  G05B2219/37481 ,  G08C19/46 ,  H03M1/0617 ,  H03M1/645 ,  H03M2201/843

摘要： A resolver signal converter and a resolver signal conversion method amplify and perform analogue-digital conversion on a sine wave output from a resolver; thereafter, among frequency components of the sine wave output, pass and thereby extract a predetermined bandwidth of which the center frequency is the frequency of an excitation signal, by means of a band-pass filter; sample the sine wave output while synchronizing the sine wave output with a reference signal which is based on the excitation signal; and generate a detection angle signal sine value from the sampled signal. Similarly, a detection angle signal cosine value is generated from a cosine wave output from the resolver. A detection angle is calculated based on the detection angle signal sine value and the detection angle signal cosine value. Accordingly, an influence, on an input resolver signal, of disturbance noise such as noise caused due to a magnetic field generated by a motor and switching noise caused due to PWM driving, is eliminated, and frequency dependence of arithmetic processing is eliminated. As a result, detection angle errors are reduced.

摘要翻译： 解算器信号转换器和旋转变压器信号转换方法对从解算器输出的正弦波放大并执行模数转换; 此后，在正弦波输出的频率分量中，通过带通滤波器，从而提取其中心频率是激励信号的频率的预定带宽; 在将正弦波输出与基于激励信号的参考信号同步时，对正弦波输出进行采样; 并从采样信号产生检测角信号正弦值。 类似地，从分解器输出的余弦波产生检测角信号余弦值。 基于检测角信号正弦值和检测角信号余弦值计算检测角度。 因此，消除了对输入解算器信号对由于由电动机产生的磁场引起的噪声和由于PWM驱动引起的开关噪声的干扰噪声的影响，并且消除了算术处理的频率依赖性。 结果，检测角误差降低。

公开(公告)号：US08825440B2

公开(公告)日：2014-09-02

申请号：US13201403

申请日：2010-12-27

申请人： Masahiro Yamada

发明人： Masahiro Yamada

IPC分类号： G01B7/30 ,  G01D5/20 ,  G08C19/46

CPC分类号： G01D5/2073 ,  G05B2219/37481 ,  G08C19/46 ,  H03M1/0617 ,  H03M1/645 ,  H03M2201/843

摘要： A resolver signal converter and a resolver signal conversion method amplify and perform analogue-digital conversion on a sine wave output from a resolver; thereafter, among frequency components of the sine wave output, pass and thereby extract a predetermined bandwidth of which the center frequency is the frequency of an excitation signal, by means of a band-pass filter; sample the sine wave output while synchronizing the sine wave output with a reference signal which is based on the excitation signal; and generate a detection angle signal sine value from the sampled signal. Similarly, a detection angle signal cosine value is generated from a cosine wave output from the resolver. A detection angle is calculated based on the detection angle signal sine value and the detection angle signal cosine value. Accordingly, an influence, on an input resolver signal, of disturbance noise such as noise caused due to a magnetic field generated by a motor and switching noise caused due to PWM driving, is eliminated, and frequency dependence of arithmetic processing is eliminated. As a result, detection angle errors are reduced.

摘要翻译： 解算器信号转换器和旋转变压器信号转换方法对从解算器输出的正弦波放大并执行模数转换; 此后，在正弦波输出的频率分量中，通过带通滤波器，从而提取其中心频率是激励信号的频率的预定带宽; 在将正弦波输出与基于激励信号的参考信号同步时，对正弦波输出进行采样; 并从采样信号产生检测角信号正弦值。 类似地，从分解器输出的余弦波产生检测角信号余弦值。 基于检测角信号正弦值和检测角信号余弦值计算检测角度。 因此，消除了对输入解算器信号对由于由电动机产生的磁场引起的噪声和由于PWM驱动引起的开关噪声的干扰噪声的影响，并且消除了算术处理的频率依赖性。 结果，检测角误差降低。