公开(公告)号：US07579798B2

公开(公告)日：2009-08-25

申请号：US10498249

申请日：2002-11-07

申请人： Tsuyoshi Hosoito ,  Kazunobu Nagai

发明人： Tsuyoshi Hosoito ,  Kazunobu Nagai

IPC分类号： H02P21/00

CPC分类号： D06F37/304 ,  H02P21/00 ,  Y02B40/52

摘要： An inverter for a washer performing drive control of an electric motor imparting a rotational driving force required for washing, rinsing and dehydrating operations in a full automatic washer performing the washing, rinsing and dehydrating processes continuously. The inverter comprises control means for operating the motor with a full field in the low speed rotational region of washing, rinsing and dehydrating operations, with weak field in the high speed rotational region of dehydrating operation, and performing vector control of the output of the motor in the case of full field operation, and voltage/phase control of the motor in the case of field weakening operation.

摘要翻译： 一种用于洗衣机的变频器，其对连续执行洗涤，漂洗和脱水处理的全自动洗衣机中的洗涤，漂洗和脱水操作所需的旋转驱动力赋予电动机。 逆变器包括控制装置，用于在洗涤，漂洗和脱水操作的低速旋转区域中具有在脱水操作的高速旋转区域中具有弱场的全场操作电动机，并且执行电动机的输出的矢量控制 在全场运行的情况下，以及在弱磁操作的情况下的电动机的电压/相位控制。

公开(公告)号：US07548039B2

公开(公告)日：2009-06-16

申请号：US11819642

申请日：2007-06-28

申请人： Naoki Oomura ,  Kazunobu Nagai ,  Shinichi Kominato ,  Yukihisa Hasegawa ,  Minoru Awazu

发明人： Naoki Oomura ,  Kazunobu Nagai ,  Shinichi Kominato ,  Yukihisa Hasegawa ,  Minoru Awazu

IPC分类号： H02P21/00 ,  H02P1/46 ,  G05D3/12

CPC分类号： H02P6/24 ,  G05B19/19 ,  G05B2219/41255 ,  G05B2219/41321 ,  G05B2219/42215 ,  H02P21/14

摘要： A motor control unit including a rotational position detector detecting a rotational position of a brushless DC motor; a current detector detecting a current of the brushless DC motor; a coordinate transformer executing rotational coordinate transformation of the current by a control phase angle and obtaining a d-axis current and a q-axis current; a current controller generating a command d-axis voltage based on a d-axis current error, and generating a command q-axis voltage based on a q-axis current error; a coordinate transformer generating a three-phase command voltage by the control phase angle; a conductive signal generator; and a position controller that, when executing a positioning operation, maintains the command d-axis current at a constant value and the command q-axis current at zero, and that controls the control phase angle based on a difference between a target stop rotational position and a rotational position detected by the rotational position detector.

摘要翻译： 一种电动机控制单元，包括检测无刷直流电动机的旋转位置的旋转位置检测器; 检测无刷直流电动机的电流的电流检测器; 坐标变换器，通过控制相位角执行电流的旋转坐标变换，得到d轴电流和q轴电流; 电流控制器，其基于d轴电流误差生成指令d轴电压，并且基于q轴电流误差生成指令q轴电压; 坐标变换器，通过控制相位角产生三相指令电压; 导电信号发生器; 以及位置控制器，当执行定位操作时，将所述命令d轴电流维持在恒定值，并将所述命令q轴电流维持在零，并且基于所述目标停止旋转位置之间的差来控制所述控制相位角 以及由旋转位置检测器检测的旋转位置。

公开(公告)号：US20080042614A1

公开(公告)日：2008-02-21

申请号：US11819642

申请日：2007-06-28

申请人： Naoki Oomura ,  Kazunobu Nagai ,  Minoru Awazu ,  Shinichi Kominato ,  Yukihisa Hasegawa

发明人： Naoki Oomura ,  Kazunobu Nagai ,  Minoru Awazu ,  Shinichi Kominato ,  Yukihisa Hasegawa

IPC分类号： G05D3/12 ,  H02P21/00

CPC分类号： H02P6/24 ,  G05B19/19 ,  G05B2219/41255 ,  G05B2219/41321 ,  G05B2219/42215 ,  H02P21/14

摘要： A motor control unit including a rotational position detector detecting a rotational position of a brushless DC motor; a current detector detecting a current of the brushless DC motor; a coordinate transformer executing rotational coordinate transformation of the current by a control phase angle and obtaining a d-axis current and a q-axis current; a current controller generating a command d-axis voltage based on a d-axis current error, and generating a command q-axis voltage based on a q-axis current error; a coordinate transformer generating a three-phase command voltage by the control phase angle; a conductive signal generator; and a position controller that, when executing a positioning operation, maintains the command d-axis current at a constant value and the command q-axis current at zero, and that controls the control phase angle based on a difference between a target stop rotational position and a rotational position detected by the rotational position detector.

摘要翻译： 一种电动机控制单元，包括检测无刷直流电动机的旋转位置的旋转位置检测器; 电流检测器，检测无刷直流电动机的电流; 坐标变换器，通过控制相位角执行电流的旋转坐标变换，得到d轴电流和q轴电流; 电流控制器，其基于d轴电流误差生成指令d轴电压，并且基于q轴电流误差生成指令q轴电压; 坐标变换器，通过控制相位角产生三相指令电压; 导电信号发生器; 以及位置控制器，当执行定位操作时，将所述命令d轴电流维持在恒定值，并将所述命令q轴电流维持在零，并且基于所述目标停止旋转位置之间的差来控制所述控制相位角 以及由旋转位置检测器检测的旋转位置。

公开(公告)号：US06556458B2

公开(公告)日：2003-04-29

申请号：US10173780

申请日：2002-06-19

申请人： Naoki Ohmura ,  Kazunobu Nagai

发明人： Naoki Ohmura ,  Kazunobu Nagai

IPC分类号： H02M545

CPC分类号： H02M7/53873

摘要： An inverter device includes a DC power supply, an inversion section connected via a DC power supply line to the DC power supply to be supplied with DC voltage from the DC power supply, thereby delivering AC voltage, a current-detecting resistor connected to the DC power supply line and having both ends, and a current detector detecting current on the basis of voltage developed across both ends of the current-detecting resistor. The current detector includes a voltage-dividing resistor, connected between a level-shift power supply line having a predetermined level-shift voltage and one of the ends of the current-detecting resistor, the voltage-dividing resistor having a voltage-dividing point. The current detector further includes an A/D converter having a pair of reference potential terminals and an input terminal, one of the reference potential terminals being connected to the other end of the current-detecting resistor, the input terminal being connected to the voltage-dividing point of the voltage-dividing resistor.

公开(公告)号：US5436547A

公开(公告)日：1995-07-25

申请号：US169995

申请日：1993-12-17

申请人： Kazunobu Nagai ,  Ichiro Hongo ,  Nobuo Matsui

发明人： Kazunobu Nagai ,  Ichiro Hongo ,  Nobuo Matsui

IPC分类号： F25B47/02 ,  F25B49/02 ,  H02P6/08 ,  H02P6/18 ,  H02P5/418

CPC分类号： H02P6/085 ,  F25B49/025 ,  H02P6/18 ,  F25B2600/021 ,  Y02B30/741

摘要： An inverter controlling an air conditioner including a brushless motor serving as a compressor motor. A microcomputer detects the rotational position of a rotor of the brushless motor from signals obtained by comparison of each of terminal voltages of the motor windings with a reference voltage in order to determine a commutation time. In a normal operation, the microcomputer forms, according to a normal energization signal forming pattern, energization signals corresponding to every commutation time at every occurrence of the commutation time, so that the motor windings are sequentially energized. When frost forms on an outdoor heat exchanger of a heat pump during a warming operation and a defrosting operation is necessary, the energization signals are formed according to a loss increasing energization signal forming pattern so that loss increasing energization signals for causing the rotor to produce counter torque are added to the respective energization signals formed according to the normal pattern. As a result, the brushless motor loss is increased and the brushless motor generates heat. The generated heat is used for defrosting the outdoor heat exchanger.

摘要翻译： 一种控制包括作为压缩机电动机的无刷电动机的空调的逆变器。 微型计算机通过将电动机绕组的每个端子电压与参考电压进行比较而获得的信号来检测无刷电动机的转子的旋转位置，以便确定换向时间。 在通常的动作中，微型计算机根据通常的通电信号形成模式，在换相时刻每次出现时形成对应于每个换向时间的通电信号，从而使马达绕组依次通电。 当在加温运转期间在热泵的室外热交换器上形成霜，并且需要除霜操作时，根据损耗增加通电信号形成模式形成通电信号，使得使转子产生计数器的增加通电信号 扭矩被添加到根据正常图案形成的各个通电信号。 结果，无刷电动机损耗增加，无刷电动机产生热量。 产生的热量用于室外热交换器的除霜。

公开(公告)号：US20100050703A1

公开(公告)日：2010-03-04

申请号：US12548914

申请日：2009-08-27

申请人： Sari MAEKAWA ,  Kazunobu Nagai ,  Tsuyoshi Hosoito

发明人： Sari MAEKAWA ,  Kazunobu Nagai ,  Tsuyoshi Hosoito

IPC分类号： D06F29/02

CPC分类号： D06F33/02 ,  D06F25/00 ,  D06F37/304 ,  D06F39/006 ,  D06F58/206 ,  D06F58/28 ,  D06F2058/287 ,  H02P3/18 ,  H02P3/22 ,  H02P21/36 ,  Y02B30/52 ,  Y02B40/52

摘要： A washer dryer including a DC power supply generator that generates a DC power supply from an AC power supply; a heat pump that circulates refrigerant between a compressor, a condenser and an evaporator; an air circulatory path that circulates air between the condenser and the evaporator; a first inverter circuit that receives the DC power supply to drive a compressor motor; a rotary tub disposed rotatably within an exterior tub; a rotary tub motor that directly drives the rotary tub at least during dehydration; a second inverter circuit that receives the DC power supply having an output terminal connected to windings of the rotary tub motor; a voltage detector that detects DC voltage occurring between the second inverter circuit and a power supply bus; a brake controller that controls the DC voltage within a predetermined range by controlling a regenerative electric power when braking is applied.

摘要翻译： 一种洗衣机干燥机，包括从AC电源产生直流电源的直流电源发生器; 使制冷剂在压缩机，冷凝器和蒸发器之间循环的热泵; 在冷凝器和蒸发器之间循环空气的空气循环路径; 第一逆变器电路，其接收直流电源以驱动压缩机电动机; 可旋转地设置在外桶内的旋转桶; 至少在脱水期间直接驱动旋转桶的旋转桶马达; 第二逆变器电路，其接收具有连接到旋转桶电动机的绕组的输出端子的直流电源; 电压检测器，其检测在所述第二逆变器电路和电源总线之间发生的直流电压; 制动控制器，其通过在施加制动时控制再生电力来将DC电压控制在预定范围内。

公开(公告)号：US20090085508A1

公开(公告)日：2009-04-02

申请号：US12053823

申请日：2008-03-24

申请人： Kazunobu Nagai ,  Sari Maekawa

发明人： Kazunobu Nagai ,  Sari Maekawa

IPC分类号： G05B19/31 ,  G05B1/06

CPC分类号： H02P21/22

摘要： A motor controller includes a reference signal generator; an A/D converter performing A/D conversion of the cosine and the sine signals outputted from a resolver; a first amplitude calculator calculating cosine and sine signal amplitudes based on twice-A/D converted cosine and sine signals respectively; a second amplitude calculator calculating averages of the cosine and the sine signals, and that calculates the amplitude of the cosine signal from a difference between the cosine signal average and a latest A/D converted cosine signal, and that calculates the amplitude of the sine signal from a difference between the sine signal average and a latest A/D converted sine signal; a synthesizer synthesizing the cosine and sine signal amplitudes obtained by the first and the second amplitude calculators respectively; a rotational angle calculator calculating a rotational angle based on the synthesized cosine and sine signal amplitudes; and a PWM controller.

摘要翻译： 电机控制器包括参考信号发生器; A / D转换器执行从解析器输出的余弦和正弦信号的A / D转换; 第一幅度计算器分别基于两倍A / D转换的余弦和正弦信号来计算余弦和正弦信号幅度; 计算余弦和正弦信号的平均值的第二幅度计算器，并且根据余弦信号平均值与最新的A / D转换余弦信号之间的差计算余弦信号的幅度，并计算正弦信号的幅度 从正弦信号平均和最新的A / D转换正弦信号之间的差异; 合成器分别合成由第一和第二振幅计算器获得的余弦和正弦信号幅度; 旋转角度计算器，基于所述合成余弦和正弦信号幅度来计算旋转角度; 和PWM控制器。

公开(公告)号：US20090060123A1

公开(公告)日：2009-03-05

申请号：US12200240

申请日：2008-08-28

申请人： Tadahiro NAKAYAMA ,  Kazunobu Nagai ,  Akiyuki Yokoyama ,  Isamu Nitta ,  Masato Nagata ,  Toyomasa Honda ,  Hidetoshi Kudo

发明人： Tadahiro NAKAYAMA ,  Kazunobu Nagai ,  Akiyuki Yokoyama ,  Isamu Nitta ,  Masato Nagata ,  Toyomasa Honda ,  Hidetoshi Kudo

IPC分类号： A61B6/02 ,  A61B6/00

CPC分类号： A61B6/56 ,  A61B6/035 ,  A61B6/4488 ,  H05G1/10

摘要： An X-ray CT device including a stationary part; a rotary part rotatable relative to the stationary part; an X-ray tube provided at the rotary part for radiating X-ray beams on an object; an X-ray detector provided at the rotary part opposing the X-ray tube, and that detects the X-ray beams passed through the object; an image processor that generates cross-sectional images of the object based on a detection signal outputted from the X-ray detector; a display that shows the cross-sectional images based on output signals delivered from the image processor; a first transmitting section configured by a rotary step-up transformer having a primary and secondary windings residing at the stationary and the rotary part respectively, and that steps up AC voltage provided by AC power source, and that further executes non-contact power transmission from the stationary part to the rotary part for supplying power to the X-ray tube.

摘要翻译： 一种X射线CT装置，包括固定部分; 旋转部分，其相对于所述静止部分可旋转; 设置在所述旋转部上用于在物体上照射X射线束的X射线管; X射线检测器，设置在与X射线管相对的旋转部，并检测穿过物体的X射线束; 图像处理器，其基于从所述X射线检测器输出的检测信号生成所述物体的截面图像; 显示器，其基于从图像处理器传送的输出信号显示横截面图像; 第一发送部分由具有分别位于静止和旋转部分的初级和次级绕组的旋转升压变压器构成，并且升高由AC电源提供的AC电压，并且进一步执行非接触式电力传输 该静止部分连接到用于向X射线管供电的旋转部分。

公开(公告)号：US07304452B2

公开(公告)日：2007-12-04

申请号：US11372216

申请日：2006-03-10

申请人： Kazunobu Nagai ,  Tsuyoshi Shinohara ,  Hiromi Oka ,  Toshikazu Sekihara

发明人： Kazunobu Nagai ,  Tsuyoshi Shinohara ,  Hiromi Oka ,  Toshikazu Sekihara

IPC分类号： H02P23/00

CPC分类号： H02P6/182 ,  H02P25/024

摘要： A motor control device for controlling a permanent magnet motor includes a current detector detecting current flowing through three-phase windings, an induced voltage computing unit obtaining voltage induced at each phase from the detected three-phase winding current based on a phase voltage equation, a position detector detecting a rotational position of the rotor from the induced voltage of each phase computed by the induced current computing unit, the rotational position of the rotor having a 6n resolution where n is an integer equal to or larger than 1, an energization phase control unit determining a phase to be energized based on the rotational position of the rotor and a phase command, an energization signal forming unit forming a 6n-resolution three-phase energization signal, and an energizing unit carrying out PWM modulation for the three-phase energization signal, supplying voltage according to the modulated three-phase energization signal to each of the three-phase windings.

摘要翻译： 用于控制永磁电动机的电动机控制装置包括电流检测器，其检测流过三相绕组的电流;感应电压计算单元，基于相电压方程，从检测到的三相绕组电流获得在各相感应的电压; 位置检测器，根据由感应电流计算单元计算出的各相感应电压检测转子的旋转位置，转子的旋转位置为6n分辨率，n为1以上的整数，通电相位控制 基于转子的旋转位置和相位指令确定要通电的相位，形成6n分辨率三相通电信号的通电信号形成单元和对三相通电进行PWM调制的通电单元 信号，根据调制的三相通电信号向每个三相绕组提供电压。

公开(公告)号：US07017377B2

公开(公告)日：2006-03-28

申请号：US10162207

申请日：2002-06-05

申请人： Tsuyoshi Hosoito ,  Toshimasa Tanaka ,  Yoji Okazaki ,  Michiaki Ito ,  Shinichiro Kawabata ,  Kazunobu Nagai ,  Futoshi Isono

发明人： Tsuyoshi Hosoito ,  Toshimasa Tanaka ,  Yoji Okazaki ,  Michiaki Ito ,  Shinichiro Kawabata ,  Kazunobu Nagai ,  Futoshi Isono

IPC分类号： D06F33/04

CPC分类号： D06F37/304 ,  D06F37/203 ,  D06F2202/12 ,  H02P21/06 ,  H02P21/22 ,  Y02B40/52

摘要： A washing machine includes an electric motor developing torque used for wash, rinse and dehydration operations, a current detector detecting current flowing into the motor, and a torque controller performing a vector control for the motor on the basis of the current detected by the current detector so that the torque developed by the motor is optimum for at least each of the wash and dehydration operations.