公开(公告)号：US08947838B2

公开(公告)日：2015-02-03

申请号：US13213274

申请日：2011-08-19

申请人： Hiroyuki Yamai ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

发明人： Hiroyuki Yamai ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

IPC分类号： H02H5/04 ,  H02H7/08 ,  H02P29/02

CPC分类号： G01R31/02 ,  H02M7/537 ,  H02M2001/0009 ,  H02P29/032

摘要： According to the present invention, an overcurrent fault detection device includes: an inverter converting DC current to three-phase AC currents for driving a motor; a DC voltage detector; phase current detectors; a rotational position detector that detects a rotational angle of the motor; a control circuit that controls a gate drive circuit, which controls the inverter at every predetermined cycle, based upon the phase current values, a motor rotational angle detection value, and a speed command or a torque command from a higher-order control device; and a first decision-making circuit that detects an overcurrent based upon the phase current values at every predetermined cycle, wherein: the first decision-making circuit determines whether or not the phase current values exceed a predetermined amplitude threshold value by frequency detection for any of the phase current values exceeding the predetermined amplitude threshold value, and determines that an overcurrent has occurred upon detecting the frequency.

摘要翻译： 根据本发明，过电流故障检测装置包括：逆变器，将直流电流转换成用于驱动电动机的三相交流电流; 直流电压检测器; 相电流检测器; 旋转位置检测器，其检测所述电动机的旋转角度; 控制电路，其基于来自上位控制装置的相电流值，电动机旋转角度检测值，速度指令或转矩指令，控制以每隔一定周期控制逆变器的栅极驱动电路; 以及第一决策电路，其基于每个预定周期的相电流值来检测过电流，其中：所述第一判定电路通过频率检测来确定所述相电流值是否超过预定振幅阈值 相电流值超过预定振幅阈值，并且在检测到频率时确定已经发生过电流。

公开(公告)号：US20120050922A1

公开(公告)日：2012-03-01

申请号：US13213274

申请日：2011-08-19

申请人： Hiroyuki YAMAI ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

发明人： Hiroyuki YAMAI ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

IPC分类号： H02H7/08

CPC分类号： G01R31/02 ,  H02M7/537 ,  H02M2001/0009 ,  H02P29/032

摘要： According to the present invention, an overcurrent fault detection device includes: an inverter converting DC current to three-phase AC currents for driving a motor; a DC voltage detector; phase current detectors; a rotational position detector that detects a rotational angle of the motor; a control circuit that controls a gate drive circuit, which controls the inverter at every predetermined cycle, based upon the phase current values, a motor rotational angle detection value, and a speed command or a torque command from a higher-order control device; and a first decision-making circuit that detects an overcurrent based upon the phase current values at every predetermined cycle, wherein: the first decision-making circuit determines whether or not the phase current values exceed a predetermined amplitude threshold value by frequency detection for any of the phase current values exceeding the predetermined amplitude threshold value, and determines that an overcurrent has occurred upon detecting the frequency.

摘要翻译： 根据本发明，过电流故障检测装置包括：逆变器，将直流电流转换成用于驱动电动机的三相交流电流; 直流电压检测器; 相电流检测器; 旋转位置检测器，其检测所述电动机的旋转角度; 控制电路，其基于来自上位控制装置的相电流值，电动机旋转角度检测值，速度指令或转矩指令，控制以每隔一定周期控制逆变器的栅极驱动电路; 以及第一决策电路，其基于每个预定周期的相电流值来检测过电流，其中：所述第一判定电路通过频率检测来确定所述相电流值是否超过预定振幅阈值 相电流值超过预定振幅阈值，并且在检测到频率时确定已经发生过电流。

公开(公告)号：US20110084704A1

公开(公告)日：2011-04-14

申请号：US12862221

申请日：2010-08-24

申请人： Kohei Myoen ,  Hiroyuki YAMAI

发明人： Kohei Myoen ,  Hiroyuki YAMAI

IPC分类号： G01R31/04

CPC分类号： B60L3/12 ,  H02H9/001

摘要： A power supply device includes: a power supply; a first contactor and a second contactor that are connected between the power supply and a load; a voltage detection circuit that detects a voltage between a load side of the first contactor and a power supply side of the second contactor; and a control unit that sets the contactors to an open/closed state. In a state in which electrical power has not been supplied to the load, a voltage which is greater than zero and less than a voltage at the power supply is applied between a positive electrode and a negative electrode on the load side; and after controlling the contactors to an open state, the control unit makes a decision as to whether or not one of the contactors is welded based upon detection results of the voltage detection circuit.

摘要翻译： 电源装置包括：电源; 连接在电源和负载之间的第一接触器和第二接触器; 电压检测电路，其检测所述第一接触器的负载侧和所述第二接触器的电源侧之间的电压; 以及将接触器设定为开/关状态的控制单元。 在没有向负载供电的状态下，在负载侧的正极和负极之间施加大于零并且小于电源电压的电压; 并且在将接触器控制到打开状态之后，基于电压检测电路的检测结果，控制单元判定接触器中的一个是否被焊接。

公开(公告)号：US08513953B2

公开(公告)日：2013-08-20

申请号：US12862221

申请日：2010-08-24

申请人： Kohei Myoen ,  Hiroyuki Yamai

发明人： Kohei Myoen ,  Hiroyuki Yamai

IPC分类号： G01R31/04

CPC分类号： B60L3/12 ,  H02H9/001

摘要： A power supply device includes: a power supply; a first contactor and a second contactor that are connected between the power supply and a load; a voltage detection circuit that detects a voltage between a load side of the first contactor and a power supply side of the second contactor; and a control unit that sets the contactors to an open/closed state. In a state in which electrical power has not been supplied to the load, a voltage which is greater than zero and less than a voltage at the power supply is applied between a positive electrode and a negative electrode on the load side; and after controlling the contactors to an open state, the control unit makes a decision as to whether or not one of the contactors is welded based upon detection results of the voltage detection circuit.

摘要翻译： 电源装置包括：电源; 连接在电源和负载之间的第一接触器和第二接触器; 电压检测电路，其检测所述第一接触器的负载侧和所述第二接触器的电源侧之间的电压; 以及将接触器设定为开/关状态的控制单元。 在没有向负载供电的状态下，在负载侧的正极和负极之间施加大于零并且小于电源电压的电压; 并且在将接触器控制到打开状态之后，基于电压检测电路的检测结果，控制单元判定接触器中的一个是否被焊接。

公开(公告)号：US08232756B2

公开(公告)日：2012-07-31

申请号：US12271444

申请日：2008-11-14

申请人： Shigeyuki Yoshihara ,  Hirokazu Matsui ,  Kohei Myoen ,  Toshisada Mitsui

发明人： Shigeyuki Yoshihara ,  Hirokazu Matsui ,  Kohei Myoen ,  Toshisada Mitsui

IPC分类号： H02P7/00

CPC分类号： G05B19/4062 ,  B60K6/48 ,  B60L3/003 ,  B60L3/0092 ,  B60L11/14 ,  B60L15/025 ,  B60L2210/20 ,  B60L2220/14 ,  G01R31/42 ,  G05B9/02 ,  G05B2219/42329 ,  H02P29/0241 ,  Y02T10/6221 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/725

摘要： An object of the present invention is to provide a motor control apparatus that can perform an abnormality diagnosis of current sensors and achieve cost reduction. When the outputs from three current sensors, which detect individual phase currents of a 3-phase AC current supplied from an inverter to a 3-phase AC motor, indicate that the sum of the individual phase currents of the 3-phase AC current is greater than a predetermined value, a sensor abnormality judgment unit of a motor control unit judges that one of the three current sensors is abnormal. The sensor abnormality judgment unit identifies an abnormal current sensor, which is one of the three current sensors, and performs calculations in accordance with the remaining two normal current sensors to output the current in the phase detected by the abnormal current sensor.

摘要翻译： 本发明的目的在于提供一种能够进行电流传感器的异常诊断并实现成本降低的电动机控制装置。 当检测到从逆变器提供给三相交流电动机的三相交流电流的各相电流的三个电流传感器的输出表明三相交流电流的各相电流之和较大时 马达控制单元的传感器异常判断单元判定三个电流传感器中的一个异常。 传感器异常判断单元识别作为三个电流传感器中的一个的异常电流传感器，并且根据剩余的两个正常电流传感器执行计算，以输出由异常电流传感器检测到的相位中的电流。

公开(公告)号：US20100109586A1

公开(公告)日：2010-05-06

申请号：US12608352

申请日：2009-10-29

申请人： Satoshi MATSUI ,  Kohei Myoen

发明人： Satoshi MATSUI ,  Kohei Myoen

IPC分类号： H02P6/16 ,  H02P21/13

CPC分类号： H02P29/02 ,  B60L11/14 ,  B60L15/025 ,  B60L2200/26 ,  B60L2220/14 ,  B60L2220/18 ,  H02P29/60 ,  H02P29/662 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077

摘要： A controller for rotating electrical machines comprises a processing unit, to which a plurality of parameters are input, for generating a switching instruction to control a switching operation of a switching semiconductor device and outputting a signal corresponding to the switching instruction to a power converter. The processing unit includes at least a function to input thereto signals having been output from each of sensors such as a current sensor to detect current passed between the power converter and a winding of an armature, a temperature sensor to detect temperature of the winding of the armature, and a magnetic pole position sensor to detect magnetic pole position of a magnetic field system, and, based upon information on current, temperature, and rotation speed of the rotating electrical machines, having been obtained from those sensor signals, detects a magnetic flux that interlinks with the winding of the armature from a permanent magnet.

摘要翻译： 用于旋转电机的控制器包括：输入多个参数的处理单元，用于产生用于控制开关半导体器件的开关操作的开关指令，并将与开关指令相对应的信号输出到功率转换器。 处理单元至少包括输入已经从诸如电流传感器的每个传感器输出的信号的功能，以检测在功率转换器和电枢的绕组之间通过的电流;温度传感器，用于检测 电枢和磁极位置传感器，用于检测磁场系统的磁极位置，并且基于从这些传感器信号获得的旋转电机的电流，温度和转速的信息，检测磁通量 其与电枢的绕组与永磁体相互连接。

公开(公告)号：US20090133947A1

公开(公告)日：2009-05-28

申请号：US12271444

申请日：2008-11-14

申请人： Shigeyuki YOSHIHARA ,  Hirokazu Matsui ,  Kohei Myoen ,  Toshisada Mitsui

发明人： Shigeyuki YOSHIHARA ,  Hirokazu Matsui ,  Kohei Myoen ,  Toshisada Mitsui

IPC分类号： B60K1/00

CPC分类号： G05B19/4062 ,  B60K6/48 ,  B60L3/003 ,  B60L3/0092 ,  B60L11/14 ,  B60L15/025 ,  B60L2210/20 ,  B60L2220/14 ,  G01R31/42 ,  G05B9/02 ,  G05B2219/42329 ,  H02P29/0241 ,  Y02T10/6221 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/725

摘要： An object of the present invention is to provide a motor control apparatus that can perform an abnormality diagnosis of current sensors and achieve cost reduction. When the outputs from three current sensors, which detect individual phase currents of a 3-phase AC current supplied from an inverter to a 3-phase AC motor, indicate that the sum of the individual phase currents of the 3-phase AC current is greater than a predetermined value, a sensor abnormality judgment unit of a motor control unit judges that one of the three current sensors is abnormal. The sensor abnormality judgment unit identifies an abnormal current sensor, which is one of the three current sensors, and performs calculations in accordance with the remaining two normal current sensors to output the current in the phase detected by the abnormal current sensor.

摘要翻译： 本发明的目的在于提供一种能够进行电流传感器的异常诊断并实现成本降低的电动机控制装置。 当检测到从逆变器提供给三相交流电动机的三相交流电流的各相电流的三个电流传感器的输出表明三相交流电流的各相电流之和较大时 马达控制单元的传感器异常判断单元判定三个电流传感器中的一个异常。 传感器异常判断单元识别作为三个电流传感器中的一个的异常电流传感器，并且根据剩余的两个正常电流传感器执行计算，以输出由异常电流传感器检测到的相位中的电流。

公开(公告)号：US08242722B2

公开(公告)日：2012-08-14

申请号：US12608352

申请日：2009-10-29

申请人： Satoshi Matsui ,  Kohei Myoen

发明人： Satoshi Matsui ,  Kohei Myoen

IPC分类号： H02P6/16

CPC分类号： H02P29/02 ,  B60L11/14 ,  B60L15/025 ,  B60L2200/26 ,  B60L2220/14 ,  B60L2220/18 ,  H02P29/60 ,  H02P29/662 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077

摘要： A controller for rotating electrical machines comprises a processing unit, to which a plurality of parameters are input, for generating a switching instruction to control a switching operation of a switching semiconductor device and outputting a signal corresponding to the switching instruction to a power converter. The processing unit includes at least a function to input thereto signals having been output from each of sensors such as a current sensor to detect current passed between the power converter and a winding of an armature, a temperature sensor to detect temperature of the winding of the armature, and a magnetic pole position sensor to detect magnetic pole position of a magnetic field system, and, based upon information on current, temperature, and rotation speed of the rotating electrical machines, having been obtained from those sensor signals, detects a magnetic flux that interlinks with the winding of the armature from a permanent magnet.

摘要翻译： 用于旋转电机的控制器包括：输入多个参数的处理单元，用于产生用于控制开关半导体器件的开关操作的开关指令，并将与开关指令相对应的信号输出到功率转换器。 处理单元至少包括输入已经从诸如电流传感器的每个传感器输出的信号的功能，以检测在功率转换器和电枢的绕组之间通过的电流;温度传感器，用于检测 电枢和磁极位置传感器，用于检测磁场系统的磁极位置，并且基于从这些传感器信号获得的旋转电机的电流，温度和转速的信息，检测磁通量 其与电枢的绕组与永磁体相互连接。