公开(公告)号：US08129931B2

公开(公告)日：2012-03-06

申请号：US12428840

申请日：2009-04-23

申请人： Sari Maekawa ,  Kazunobu Nagai ,  Isamu Nitta

发明人： Sari Maekawa ,  Kazunobu Nagai ,  Isamu Nitta

IPC分类号： H02P21/00

CPC分类号： H02P21/14

摘要： A motor control device includes a magnetization control unit energizing a motor winding to change magnetic flux content of permanent magnet motor, a current detector detecting current supplied to the motor, a vector control unit including a speed/position estimation unit carrying out an operation to estimate a motor rotational speed and rotational position, the vector control unit carrying out a vector control of the motor, an induced voltage detector detecting an induced voltage of the motor based on the rotational speed, motor currents obtained by the vector control unit, output voltages of the drive unit, a winding inductance or the motor constant and a winding resistance, an induced voltage command determining unit determining an induced voltage command based on the motor rotational speed and output torque, and a magnetization current determining unit determining an amount of energization based on the induced voltage of the motor and the induced voltage command.

摘要翻译： 一种电动机控制装置，包括对电动机绕组通电以改变永磁电动机的磁通量的磁化控制装置，电流检测器检测供给电动机的电流;矢量控制单元，包括执行估计的操作的速度/位置估计单元 马达旋转速度和旋转位置，矢量控制单元执行马达的矢量控制，感测电压检测器，基于转速检测马达的感应电压，由矢量控制单元获得的马达电流，输出电压 驱动单元，绕组电感或电动机常数和绕组电阻，感应电压指令确定单元，基于电动机转速和输出转矩来确定感应电压指令;以及磁化电流确定单元，其基于 电机的感应电压和感应电压指令。

公开(公告)号：US07859215B2

公开(公告)日：2010-12-28

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

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：US20100090640A1

公开(公告)日：2010-04-15

申请号：US12579857

申请日：2009-10-15

申请人： Sari MAEKAWA ,  Kazunobu NAGAI

发明人： Sari MAEKAWA ,  Kazunobu NAGAI

IPC分类号： H02P25/28 ,  H02K21/12

CPC分类号： H02K1/276 ,  H02K21/04 ,  H02P21/0089 ,  H02P21/06

摘要： A motor controller controlling a permanent magnet motor including a rotor provided with a plurality of low coercivity permanent magnets having a coercivity low enough to allow modification in amount of magnetization, the motor controller including a position detector including one or more position sensors to detect a rotational position of the rotor; an inverter circuit connected between a direct current voltage supply source and windings of the permanent magnet motor and configured by a plurality of semiconductor switching elements of multiple phases connected thereto; and a magnetization controller that magnetizes the plurality of low coercivity permanent magnets constituting the rotor by energizing the windings of the permanent magnet motor through the inverter circuit such that all of the low coercivity permanent magnets are magnetized to a uniform level of magnetization by energizing the windings twice at same timings specified based on a sensor signal outputted by the position sensor.

摘要翻译： 一种控制永磁电动机的电动机控制器，包括具有多个低矫顽力永磁体的转子，所述低矫顽力永磁体的矫顽磁力足够低以允许改变磁化强度，所述电动机控制器包括位置检测器，该位置检测器包括一个或多个位置传感器， 转子位置; 连接在直流电压源和永磁电动机的绕组之间的逆变器电路，由与其连接的多个相位的多个半导体开关元件构成; 以及磁化控制器，其通过使逆变器电路对永磁电动机的绕组进行励磁来磁化构成转子的多个低矫顽力永久磁铁，使得通过使绕组通电使得所有低矫顽力永磁体被磁化至均匀的磁化水平 基于由位置传感器输出的传感器信号指定的相同定时两次。

公开(公告)号：US20060066270A1

公开(公告)日：2006-03-30

申请号：US11231904

申请日：2005-09-22

申请人： Shin Kumagai ,  Shigeru Endo ,  Atsushi Horikoshi ,  Kazunobu Nagai ,  Masahiro Kuroda

发明人： Shin Kumagai ,  Shigeru Endo ,  Atsushi Horikoshi ,  Kazunobu Nagai ,  Masahiro Kuroda

IPC分类号： H02P5/00

CPC分类号： B62D5/046 ,  B60T13/741

摘要： A controller for a motor to be mounted on a vehicle includes a boosting circuit 2 for raising the voltage of a battery that is disposed near the battery 1, a motor driving circuit 4 disposed near the motor 3 to be mounted on the vehicle for controlling the motor 3 to be mounted on the vehicle to be driven in accordance with boosted voltage outputted from the boosting circuit and a communication unit 5 disposed between the boosting circuit 2 and the motor driving circuit 4.

摘要翻译： 用于安装在车辆上的电动机的控制器包括用于提高设置在电池1附近的电池的电压的升压电路2，设置在电动机3附近以安装在车辆上用于控制电动机的电动机驱动电路4 电动机3根据从升压电路输出的升压电压被安装在待驱动的车辆上，以及设置在升压电路2和电动机驱动电路4之间的通信单元5。

公开(公告)号：US6041625A

公开(公告)日：2000-03-28

申请号：US887632

申请日：1997-07-03

申请人： Kazunobu Nagai ,  Masahiro Imai

发明人： Kazunobu Nagai ,  Masahiro Imai

IPC分类号： D06F33/02 ,  D06F37/30 ,  D06F37/40 ,  H02P6/10

CPC分类号： D06F37/304 ,  D06F33/02 ,  D06F37/40 ,  Y02B40/52

摘要： A full automatic washing machine includes an outer tub, a rotatable tub mounted for rotation in the outer tub, an agitator mounted for rotation in the rotatable tub, a brushless motor for directly driving the agitator or the rotatable tub and the agitator, and a Hall IC for detecting a rotational position of a rotor of the brushless motor, generating a position signal. A sinusoidal energization signal is formed on the basis of the position signal generated by the Hall IC. The brushless motor is energized on the basis of the formed energization signal.

摘要翻译： 全自动洗衣机包括一个外桶，一个可旋转的外桶，一个可旋转桶内旋转的搅拌器，一个用于直接驱动搅拌器或旋转桶和搅拌器的无刷马达，以及一个霍尔 IC，用于检测无刷电动机的转子的旋转位置，产生位置信号。 基于由霍尔IC产生的位置信号形成正弦通电信号。 基于形成的通电信号，无刷电动机通电。

公开(公告)号：US5486743A

公开(公告)日：1996-01-23

申请号：US153525

申请日：1993-11-16

申请人： Kazunobu Nagai

发明人： Kazunobu Nagai

IPC分类号： H02P6/06 ,  H02P6/08

CPC分类号： H02P6/06 ,  H02P6/085

摘要： An inverter controlling a brushless motor includes a microcomputer detecting a rotational position of a motor rotor on the basis of comparison signals obtained by comparison of terminal voltages of respective windings of the brushless motor with a reference voltage, determining a commutation timing. The current flowing through a DC power line is detected by a shunt resistor and the detected current is sampled and compared sequentially by the microcomputer. The microcomputer obtains a compensation time period in accordance with the result of comparison. The commutation timing of each of switching transistors of the inverter is compensated with respect to a reference commutation timing by the obtained compensation time period. Alternatively, the microcomputer detects energization time periods of diodes as the commutation time periods on the basis of the comparison signals and determine the commutation timing from the detected commutation time periods. The commutation timing is compensated by the compensation time period with respect to the reference commutation timing.

摘要翻译： 控制无刷电动机的逆变器包括微型计算机，其基于通过将无刷电动机的各个绕组的端子电压与参考电压进行比较而获得的比较信号来检测电动机转子的旋转位置，确定换向定时。 通过分流电阻检测流过直流电源线的电流，并且由微型计算机依次对检测到的电流进行采样和比较。 微型计算机根据比较结果获得补偿时间。 逆变器的每个开关晶体管的换向定时相对于基准换向定时被补偿所获得的补偿时间段。 或者，微计算机根据比较信号来检测作为换流时间的二极管的通电时间周期，并根据检测到的换流时间确定换流定时。 通过相对于参考换向定时的补偿时间段来补偿换向定时。

公开(公告)号：US08424347B2

公开(公告)日：2013-04-23

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： D06F37/30 ,  D06F25/00

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：US20110062903A1

公开(公告)日：2011-03-17

申请号：US12882641

申请日：2010-09-15

申请人： Shuting LI ,  Nobuyuki Suzuki ,  Toshikazu Sekihara ,  Kazunobu Nagai ,  Yukihisa Hasegawa ,  Toshimitsu Aizawa ,  Sari Maekawa

发明人： Shuting LI ,  Nobuyuki Suzuki ,  Toshikazu Sekihara ,  Kazunobu Nagai ,  Yukihisa Hasegawa ,  Toshimitsu Aizawa ,  Sari Maekawa

IPC分类号： H02P21/00

CPC分类号： H02P6/182 ,  H02P5/46 ,  H02P21/24

摘要： A motor control device controlling an inverter to control an electric motor, includes a plurality of function sections, a voltage command generating section generating a d-axis voltage command and a q-axis voltage command, a voltage operational processing section, an input current operation section, a speed information generating section estimating a rotational speed of the motor based on at least one of a motor constant, a positional information generating section delivering positional information about a rotor, a processor executing control software set by a user, a manufacturer or the like. At least a part of the function sections are configured by hardware. The function section configured by the hardware is given at least one parameter retaining section. The parameter retaining section is configured so as to be readable/writable on the processor. The function section is configured by the hardware so as to be operated in a predetermined sequence.

摘要翻译： 控制逆变器来控制电动机的电动机控制装置包括多个功能部，产生d轴电压指令和q轴电压指令的电压指令生成部，电压运算处理部，输入电流运算 速度信息生成部，基于电动机常数，传递关于转子的位置信息的位置信息生成部，由用户设定的处理器执行控制软件，制造商或者制造者， 喜欢。 功能部分的至少一部分由硬件配置。 由硬件配置的功能部分至少给出一个参数保留部分。 参数保留部分被配置为在处理器上可读/写。 功能部分由硬件配置以便以预定顺序操作。

公开(公告)号：US07826586B2

公开(公告)日：2010-11-02

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： H05G1/00 ,  H05G1/10

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：US20100052599A1

公开(公告)日：2010-03-04

申请号：US12547033

申请日：2009-08-25

申请人： Kazunobu NAGAI ,  Takeshi Shibayama ,  Sari Maekawa

发明人： Kazunobu NAGAI ,  Takeshi Shibayama ,  Sari Maekawa

IPC分类号： H02P21/00 ,  H02P27/08

CPC分类号： H02P1/426 ,  H02P21/28 ,  H02P27/12

摘要： An inverter device driving an induction motor including main and auxiliary windings both having different winding specifications includes a three-arm inverter circuit having phase output terminals connected to the main winding, the auxiliary winding and a neutral winding of the induction motor respectively and converting a DC power supply to two-phase substantially sinusoidal PWM voltage, a current detector detecting currents of the respective main and auxiliary windings from a DC power supply current, a vector control computing unit obtaining balanced inductance values and resistance values from inductance values and resistance values of the respective main and auxiliary windings, determining a two-phase voltage to be supplied to the induction motor by vector control computing based on the balanced inductance values and resistance values, and a PWM signal forming unit forming a PWM signal controlling the inverter circuit according to the two-phase voltage.

摘要翻译： 驱动包括具有不同绕组规格的主绕组和辅助绕组的感应电动机的逆变器装置包括三臂逆变器电路，其具有分别连接到主绕组，辅助绕组和感应电动机的中性绕组的相位输出端子，并将DC 电源到两相基本正弦PWM电压，电流检测器从直流电源电流检测相应的主辅助绕组的电流;矢量控制计算单元，从电感值和电阻值获得平衡电感值和电阻值 相应的主和辅绕组，通过基于平衡电感值和电阻值的矢量控制计算来确定要提供给感应电动机的两相电压;以及PWM信号形成单元，其形成控制逆变器电路的PWM信号，根据 两相电压。