公开(公告)号：US20140167662A1

公开(公告)日：2014-06-19

申请号：US14234455

申请日：2012-07-25

申请人： Toshiyuki Ajima ,  Hiroyuki Yamada ,  Hiroshi Tamura ,  Kimihisa Furukawa

发明人： Toshiyuki Ajima ,  Hiroyuki Yamada ,  Hiroshi Tamura ,  Kimihisa Furukawa

IPC分类号： H02P6/16

CPC分类号： H02P6/16 ,  H02P6/182 ,  H02P21/18

摘要： An inverter device that controls a motor using a signal from a position sensor for detecting a rotor rotational position of the motor includes an initial adjustment unit that outputs a phase of current for designating a motor rotational position by rotating the motor in a clockwise direction of the motor and a phase of current for designating the motor rotational position by rotating the motor in a counter-clockwise direction of the motor.

摘要翻译： 使用来自用于检测电动机的转子旋转位置的位置传感器的信号来控制电动机的逆变器装置包括初始调整单元，其通过使电动机沿着顺时针方向旋转来输出用于指定电动机旋转位置的电流的相位 电动机和用于通过沿电动机的逆时针方向旋转电动机来指定电动机旋转位置的电流相位。

公开(公告)号：US20100028165A1

公开(公告)日：2010-02-04

申请号：US12533097

申请日：2009-07-31

申请人： Hirotaka KAMEYA ,  Masaru Yamasaki ,  Toshiyuki Ajima ,  Masaharu Senoo ,  Hideharu Tanaka ,  Norinaga Suzuki

发明人： Hirotaka KAMEYA ,  Masaru Yamasaki ,  Toshiyuki Ajima ,  Masaharu Senoo ,  Hideharu Tanaka ,  Norinaga Suzuki

IPC分类号： F04B49/00 ,  F04B35/04 ,  F04C29/04 ,  H02P1/04

CPC分类号： F04B17/03 ,  F04C18/16 ,  F04C28/06 ,  F04C28/08 ,  F04C2270/051 ,  F04C2270/19 ,  F04C2270/701

摘要： When an oil-flooded screw compressor is started up in a cold environment after a long halt, start-up torque increases due to the increased viscosity of the oil that has long stayed inside the working chambers of the compressor. This has necessitated drive means with a larger capacity than that required for normal operation.An oil-flooded screw compressor according to the invention comprises: a casing; a pair of rotors each having screw-thread-shaped groove and being housed in the casing; an electric motor for rotationally driving the pair of rotors; a control device for controlling the electric motor; an oil feeding mechanism for feeding oil into working chambers formed by being enclosed by the casing and the pair of rotors in which teeth thereof are meshed to each other; and an oil separating mechanism for separating the oil from compressed gas discharged from the working chambers. The oil-flooded screw compressor drives the pair of rotors at a rotational speed which is low enough not to increase torque for a short amount of time after start-up and accelerates the pair of rotors up to a normal-operation rotational speed after oil discharge. Alternatively, the oil-flooded screw compressor rotates the pair of rotors for a short amount of time after the remaining compressed gas is discharged after a halt, thereby allowing the oil accumulated inside the working chambers to be discharged and ensuring smooth start-up after the halt.

摘要翻译： 当在长时间停止之后，在冷空气环境中启动一个充油螺杆压缩机时，由于长时间停留在压缩机的工作室内的油的粘度增加，启动扭矩增加。 这需要比正常操作所需的更大的容量的驱动装置。 根据本发明的一种充油螺杆式压缩机包括：壳体; 一对转子，每个转子都具有螺纹形槽并容纳在壳体中; 用于旋转地驱动所述一对转子的电动机; 用于控制电动机的控制装置; 供油机构，用于将油输送到由壳体和由其彼此啮合的一对转子形成的工作室; 以及用于将油与从工作室排出的压缩气体分离的油分离机构。 充油螺杆式压缩机以一定的转速驱动一对转子，旋转速度足够低，在启动后不会在短时间内增加扭矩，并且在排油后将一对转子加速至正常操作转速 。 或者，油压螺杆式压缩机在停止后剩余的压缩气体排出之后使一对转子旋转一段时间，从而允许积聚在工作室内的油排出，并确保顺利启动 停。

公开(公告)号：US07161323B2

公开(公告)日：2007-01-09

申请号：US11158247

申请日：2005-06-22

申请人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Satoru Kaneko ,  Yuuichirou Takamune

发明人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Satoru Kaneko ,  Yuuichirou Takamune

IPC分类号： H02J1/02 ,  H02P27/00

CPC分类号： H02P6/10 ,  B62D5/046 ,  B62D5/0463 ,  F16D65/18 ,  F16D2121/24 ,  H02M2001/0009 ,  H02P2209/07

摘要： The disclosure concerns a a motor drive apparatus, an electric actuator and an electric power steering apparatus capable of continuous torque control up to the high drive speed and high torque area, in order to enable quick acceleration and deceleration. A controller comprises a voltage saturation detecting apparatus for detecting the voltage saturation of the output voltage of an inverter circuit, based on the battery voltage, and a waveform controller that converts the drive waveform of the inverter circuit into the waveform created by superimposing harmonics of high odd-numbered order on a sinusoidal wave as a fundamental wave of the modulated wave modulated by a PWN carrier wave; and continuously changes the ratio of superimposing the high-order harmonics in response to the voltage saturation detected by a voltage saturation detecting means. This arrangement allows the controller to continuously change the drive waveform of the inverter circuit.

摘要翻译： 本发明涉及一种电动机驱动装置，电动执行机构和电动助力转向装置，其能够连续转矩控制，直到高驱动速度和高扭矩区域，以便能够快速加速和减速。 控制器包括：电压饱和检测装置，用于基于电池电压检测逆变器电路的输出电压的电压饱和;以及波形控制器，其将逆变器电路的驱动波形转换成通过叠加高次谐波产生的波形 作为由PWN载波调制的调制波的基波的正弦波上的奇数次序; 并且响应于由电压饱和检测装置检测的电压饱和而连续地改变叠加高次谐波的比率。 这种布置允许控制器连续地改变逆变器电路的驱动波形。

公开(公告)号：US20060125439A1

公开(公告)日：2006-06-15

申请号：US11294500

申请日：2005-12-06

申请人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yukio Kawabata ,  Kiyoshi Sakamoto ,  Takao Yanai ,  Osamu Koizumi

发明人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yukio Kawabata ,  Kiyoshi Sakamoto ,  Takao Yanai ,  Osamu Koizumi

IPC分类号： H02P1/46

CPC分类号： B60K6/26 ,  B60K6/48 ,  B60L11/14 ,  B60L15/025 ,  B60L15/20 ,  B60L2220/14 ,  B60L2220/16 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2240/429 ,  H02P1/46 ,  H02P21/22 ,  Y02T10/6221 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275

摘要： A rotary sensor that outputs two analog signals, such as one sine wave and one cosine wave and has multiple periods within one period of the electrical angle of a motor is employed. The motor is energized at each position for a specified length of time upon its startup by using multiple electrical angles corresponding to the multiple candidate absolute angles obtained from the rotary sensor signal as the initial position of the motor, and the electrical angle at which the motor acceleration becomes maximum is determined as the absolute angle. While the motor drive is in operation, on the other hand, the phase difference Δθ between the phase of the motor at the counter electromotive voltage and the control phase is directly computed from the parameters of the motor, sensed current, voltage command and angle speed so as to correct the shifted position. A high-efficiency motor drive unit with improved maintainability of rotary sensor and improved accuracy of sensing the magnet pole position of a permanent magnet synchronous motor that accelerates and decelerates very quickly in a wide range of speed is realized.

摘要翻译： 采用旋转传感器，其输出两个模拟信号，例如一个正弦波和一个余弦波，并且在电动机的电角度的一个周期内具有多个周期。 电动机通过使用与从旋转传感器信号获得的多个候选绝对角度相对应的多个电角度作为电动机的初始位置和电动机的电角度，在每个位置通电一段指定时间长度的电动机 加速度变为最大值被确定为绝对角度。 另一方面，在电动机驱动器运行中，电动机相反相电压与控制相之间的相位差Deltatheta直接根据电动机的参数，感应电流，电压指令和角速度来计算 以便纠正移位的位置。 实现了高效率的电机驱动单元，其具有改进的旋转传感器的可维护性并且提高了感测永磁同步电动机的磁极位置的精度，其在宽的速度范围内非常快速地加速和减速。

公开(公告)号：US07035044B2

公开(公告)日：2006-04-25

申请号：US10220371

申请日：2002-06-10

申请人： Asao Nakano ,  Yuji Fujita ,  Yasuo Amano ,  Nobuyuki Ushifusa ,  Koki Uefuna ,  Takashi Yamaguchi ,  Toshiyuki Ajima

发明人： Asao Nakano ,  Yuji Fujita ,  Yasuo Amano ,  Nobuyuki Ushifusa ,  Koki Uefuna ,  Takashi Yamaguchi ,  Toshiyuki Ajima

IPC分类号： G11B17/08

CPC分类号： G11B25/043 ,  G11B19/2009

摘要： A magnetic disk drive includes a base constituting at least a face included in an enclosure; a shaft secured to the base; a rotor which rotates around the shaft as a rotary axis; a stator for rotating the rotor; and a magnetic disk secured to the rotor; wherein the stator is disposed on a face facing the base. This improves durability of the magnetic disk drive.

摘要翻译： 磁盘驱动器包括至少构成包括在外壳中的面的基座; 固定在基座上的轴; 围绕轴旋转的转子作为旋转轴线; 用于使转子旋转的定子; 和固定在转子上的磁盘; 其中所述定子设置在面向所述基座的面上。 这提高了磁盘驱动器的耐久性。

公开(公告)号：US20060001392A1

公开(公告)日：2006-01-05

申请号：US11158247

申请日：2005-06-22

申请人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Satoru Kaneko ,  Yuuichirou Takamune

发明人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Satoru Kaneko ,  Yuuichirou Takamune

IPC分类号： H02P7/00

CPC分类号： H02P6/10 ,  B62D5/046 ,  B62D5/0463 ,  F16D65/18 ,  F16D2121/24 ,  H02M2001/0009 ,  H02P2209/07

摘要： In an operation range of an actuator subjected to quick acceleration and deceleration, a motor drive apparatus, an electric actuator and an electric power steering apparatus capable of continuous torque control up to the high drive speed and high torque area. A controller comprises a voltage saturation detecting means for detecting the voltage saturation of the output voltage of an inverter circuit, based on the battery voltage, and a waveform controller that converts the drive waveform of the inverter circuit into the waveform created by superimposing harmonics of high odd-numbered order on a sinusoidal wave as a fundamental wave of the modulated wave modulated by a PWN carrier wave; and continuously changes the ratio of superimposing the high-order harmonics in response to the voltage saturation detected by a voltage saturation detecting means. This arrangement allows the controller to continuously change the drive waveform of the inverter circuit.

摘要翻译： 在快速加速和减速的执行器的操作范围内，能够连续转矩控制到高驱动速度和高转矩区域的电动机驱动装置，电动执行器和电动转向装置。 控制器包括：电压饱和检测装置，用于基于电池电压检测逆变器电路的输出电压的电压饱和;以及波形控制器，其将逆变器电路的驱动波形转换成通过叠加高次谐波产生的波形 作为由PWN载波调制的调制波的基波的正弦波上的奇数次序; 并且响应于由电压饱和检测装置检测的电压饱和而连续地改变叠加高次谐波的比率。 这种布置允许控制器连续地改变逆变器电路的驱动波形。

公开(公告)号：US5381584A

公开(公告)日：1995-01-17

申请号：US145729

申请日：1993-11-04

申请人： Fumio Jyoraku ,  Hisao Suka ,  Yoshitaro Ishii ,  Hisanori Toyoshima ,  Mitsuhisa Kawamata ,  Haruo Koharagi ,  Kazuo Tahara ,  Tunehiro Endo ,  Kunio Miyashita ,  Toshiyuki Ajima ,  Takeshi Abe ,  Atusi Hosokawa

发明人： Fumio Jyoraku ,  Hisao Suka ,  Yoshitaro Ishii ,  Hisanori Toyoshima ,  Mitsuhisa Kawamata ,  Haruo Koharagi ,  Kazuo Tahara ,  Tunehiro Endo ,  Kunio Miyashita ,  Toshiyuki Ajima ,  Takeshi Abe ,  Atusi Hosokawa

IPC分类号： A47L9/28

CPC分类号： A47L9/2842 ,  A47L9/2821 ,  A47L9/2831 ,  A47L9/2889 ,  A47L9/2894

摘要： A controlling apparatus controls a suction performance of a blower motor which is installed into a cleaner main body. The controlling apparatus increases the suction performance when a suction nozzle is operated and decreases the suction performance when the suction nozzle is stopped. Corresponding to a floor use suction nozzle and a crevice use suction nozzle, at a predetermined air flow amount range, the most suitable operation control being suited to a discriminated suction nozzle can carried out automatically. Plural kinds of the suction nozzles at an actual use scope are set beforehand. When the suction nozzle is exchanged the flow amount range is changed over and selected with a respective suction nozzle. Plural kinds of the suction nozzles are selected and changed over automatically according to the dimension of a change amount of an operation condition. A brushless direct motor is used as the blower motor and has a domain being operated at a chopper control duty of factor 100%.

摘要翻译： 控制装置控制安装在吸尘器主体中的鼓风电动机的吸入性能。 当吸嘴被操作时，控制装置增加吸入性能，并且当吸嘴停止时降低吸入性能。 对应于地板用吸嘴和缝隙使用吸嘴，在预定的空气流量范围内，自动执行适合于被鉴别的吸嘴的最合适的操作控制。 预先设定实际使用范围内的多种吸嘴。 当更换吸嘴时，用相应的吸嘴改变流量范围并进行选择。 根据操作条件的变化量的尺寸自动选择和改变多种吸嘴。 使用无刷直接电动机作为鼓风机电动机，并且具有以因子100％的斩波控制占空比操作的域。