公开(公告)号：US08918668B2

公开(公告)日：2014-12-23

申请号：US13411644

申请日：2012-03-05

Applicant: Koji Iwahashi ,  Hidetoshi Ryu ,  Satoshi Sueshima

Inventor： Koji Iwahashi ,  Hidetoshi Ryu ,  Satoshi Sueshima

IPC: G06F1/12 ,  H02M7/48

CPC classification number: G06F1/12 ,  G05B19/0423 ,  G05B19/414 ,  G05B2219/33093 ,  G05B2219/33157 ,  G05B2219/33187 ,  G05B2219/33254 ,  G05B2219/34225 ,  H02M7/48

Abstract: An interface circuit includes a general-purpose CPU configured to transmit a clock to a serial encoder with which bidirectional serial communication of clock synchronization type is to be performed, the CPU being configured to transmit and receive data to and from the serial encoder; and an additional circuit configured to detect a start bit of reception data transmitted from the serial encoder. The general-purpose CPU starts counting the number of bits of the reception data in response to a detection signal from the additional circuit, the detection signal indicating the detection of the start bit. The CPU stops transmitting the clock to the serial encoder upon completion of counting a predetermined number of bits of the reception data.

Abstract translation: 接口电路包括：通用CPU，被配置为向串行编码器发送时钟，串行编码器将执行时钟同步类型的双向串行通信，CPU被配置为向串行编码器发送数据和从串行编码器接收数据; 以及附加电路，被配置为检测从串行编码器发送的接收数据的起始位。 通用CPU响应于来自附加电路的检测信号开始计数接收数据的位数，该检测信号指示检测到起始位。 在完成接收数据的预定位数的计数之后，CPU停止向串行编码器发送时钟。

公开(公告)号：US20120166857A1

公开(公告)日：2012-06-28

申请号：US13411644

申请日：2012-03-05

Applicant: Koji IWAHASHI ,  Hidetoshi Ryu ,  Satoshi Sueshima

Inventor： Koji IWAHASHI ,  Hidetoshi Ryu ,  Satoshi Sueshima

IPC: G06F1/12

CPC classification number: G06F1/12 ,  G05B19/0423 ,  G05B19/414 ,  G05B2219/33093 ,  G05B2219/33157 ,  G05B2219/33187 ,  G05B2219/33254 ,  G05B2219/34225 ,  H02M7/48

Abstract: An interface circuit includes a general-purpose CPU configured to transmit a clock to a serial encoder with which bidirectional serial communication of clock synchronization type is to be performed, the CPU being configured to transmit and receive data to and from the serial encoder; and an additional circuit configured to detect a start bit of reception data transmitted from the serial encoder. The general-purpose CPU starts counting the number of bits of the reception data in response to a detection signal from the additional circuit, the detection signal indicating the detection of the start bit. The CPU stops transmitting the clock to the serial encoder upon completion of counting a predetermined number of bits of the reception data.

Abstract translation: 接口电路包括：通用CPU，被配置为向串行编码器发送时钟，串行编码器将执行时钟同步类型的双向串行通信，CPU被配置为向串行编码器发送数据和从串行编码器接收数据; 以及附加电路，被配置为检测从串行编码器发送的接收数据的起始位。 通用CPU响应于来自附加电路的检测信号开始计数接收数据的位数，该检测信号指示检测到起始位。 在完成接收数据的预定位数的计数之后，CPU停止向串行编码器发送时钟。

公开(公告)号：US20060049795A1

公开(公告)日：2006-03-09

申请号：US10520467

申请日：2003-07-02

Applicant: Hideaki Iura ,  Kazuhiro Nonaka ,  Yuichi Terazono ,  Yoichi Yamamoto ,  Satoshi Sueshima ,  Katsushi Terazono ,  Mitsujiro Sawamura

Inventor： Hideaki Iura ,  Kazuhiro Nonaka ,  Yuichi Terazono ,  Yoichi Yamamoto ,  Satoshi Sueshima ,  Katsushi Terazono ,  Mitsujiro Sawamura

IPC: H02P27/04

CPC classification number: H02P1/029

Abstract: It is the objective of the present invention to provide a sensorless vector control method and a control apparatus, for an alternating-current motor, that can smoothly restart an alternating-current motor in the free running state. According to the present invention, when a current that flows in an alternating-current motor (2) at a restart time 7 the alternating-current motor (2) continuously flows at a designated current level or higher for a designated period of time, it is determined that the rotational direction or the velocity of the alternating-current motor (2) is incorrectly estimated, and a direct current or a direct-current voltage is again applied to again estimate the rotational direction and the velocity.

Abstract translation: 本发明的目的是提供一种用于交流电动机的无传感器矢量控制方法和控制装置，其可以在自由运行状态下平稳地重启交流电动机。

公开(公告)号：US07423395B2

公开(公告)日：2008-09-09

申请号：US10520467

申请日：2003-07-02

Applicant: Hideaki Iura ,  Kazuhiro Nonaka ,  Yuichi Terazono ,  Yoichi Yamamoto ,  Satoshi Sueshima ,  Katsushi Terazono ,  Mitsujiro Sawamura

Inventor： Hideaki Iura ,  Kazuhiro Nonaka ,  Yuichi Terazono ,  Yoichi Yamamoto ,  Satoshi Sueshima ,  Katsushi Terazono ,  Mitsujiro Sawamura

IPC: H02P21/00

CPC classification number: H02P1/029

Abstract: It is the objective of the present invention to provide a sensorless vector control method and a control apparatus, for an alternating-current motor, that can smoothly restart an alternating-current motor in the free running state.According to the present invention, when a current that flows in an alternating-current motor (2) at a restart time 7 the alternating-current motor (2) continuously flows at a designated current level or higher for a designated period of time, it is determined that the rotational direction or the velocity of the alternating-current motor (2) is incorrectly estimated, and a direct current or a direct-current voltage is again applied to again estimate the rotational direction and the velocity.

Abstract translation: 本发明的目的是提供一种用于交流电动机的无传感器矢量控制方法和控制装置，其可以在自由运行状态下平稳地重启交流电动机。 根据本发明，当在交流电动机（2）中在交流电动机（2）中流过交流电动机（2）的电流在指定的时间段内连续地以指定的电流或更高的水平流动时， 确定不正确地估计交流电动机（2）的旋转方向或速度，并且再次施加直流电流或直流电压以再次估计旋转方向和速度。