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63 条记录 (耗时 0.028 秒)

    Motor control apparatus and motor system
    52.
    发明授权
    Motor control apparatus and motor system 有权
    电机控制装置及电机系统

    公开(公告)号：US08115436B2

    公开(公告)日：2012-02-14

    申请号：US12255693

    申请日：2008-10-22

    申请人： Kiyoshi Sakamoto ,  Tomohiro Sugino

    发明人： Kiyoshi Sakamoto ,  Tomohiro Sugino

    IPC分类号： H02P6/00

    CPC分类号： H02P6/182 ,  H02P6/187 ,  H02P6/188

    摘要： In a motor control apparatus, apparatus all switching devices of all phases of an inverter are kept fixed at OFF in accordance with a value of an all-OFF control pulse signal Poff outputted by a pulse generator. The pulse generator generates at least twice a pulse causing an induced voltage detection signal Pdet to change to an H level. A terminal voltage of a motor is inputted in accordance with the value of the induced voltage detection signal Pdet. Data of the sampling round in which amplitude of the induced voltage signal is great and the signal is not in saturation is selected from the data so inputted and a rotor position is estimated.

    摘要翻译： 在电动机控制装置中，根据脉冲发生器输出的全关闭控制脉冲信号Poff的值，逆变器的所有相的所有开关装置的装置保持固定为OFF。 脉冲发生器产生脉冲的至少两倍，使感应电压检测信号Pdet变为H电平。 根据感应电压检测信号Pdet的值输入电动机的端子电压。 从输入的数据中选择感应电压信号的幅度大，信号不饱和的采样周期的数据，并且估计转子位置。

    ELECTRIC POWER CONVERSION DEVICE, COMPRESSOR MOTOR WITH THE DEVICE, AND AIR CONDITIONER WITH THE MOTOR
    53.
    发明申请
    ELECTRIC POWER CONVERSION DEVICE, COMPRESSOR MOTOR WITH THE DEVICE, AND AIR CONDITIONER WITH THE MOTOR 失效
    电力转换装置，与装置的压缩机电动机和带电动机的空调机

    公开(公告)号：US20090323232A1

    公开(公告)日：2009-12-31

    申请号：US12388762

    申请日：2009-02-19

    申请人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

    发明人： Takahiro Suzuki ,  Yasuo Notohara ,  Kiyoshi Sakamoto

    IPC分类号： H02H3/00 ,  H02M7/537

    CPC分类号： H02M7/53873 ,  H02M1/32 ,  H02M7/5395 ,  H02M2001/0009

    摘要： The device is provided with an electric power conversion circuit including switching elements for converting a DC electric power to an AC electric power, a load connected to an output side of the electric power conversion circuit, means for detecting a current flowing through a DC side in the electric power conversion circuit, a voltage command value preparing means for controlling the operation of the switching elements in the electric power conversion circuit and a wire breaking detecting means. The wire breaking detection means judges a wire breaking in the load or an abnormality of any of the switching elements in the electric power conversion circuit by making use of a DC current detection value in a period when a current of maximum voltage phase or of voltage minimum phase of the electric power conversion circuit is flowing in a DC current.

    摘要翻译： 该装置设置有电力转换电路，该电力转换电路包括用于将DC电力转换为AC电力的开关元件，连接到电力转换电路的输出侧的负载，用于检测流过DC侧的电流的装置 电力转换电路，用于控制电力转换电路中的开关元件的动作的电压指令值准备单元以及断线检测单元。 断线检测装置通过在最大电压相位或电压最小值的电流的周期内利用直流电流检测值来判断负载中的断线或电力转换电路中的任何开关元件的异常 电力转换电路的相位在直流电流中流动。

    Synchronous motor drive unit and a driving method thereof
    54.
    发明申请
    Synchronous motor drive unit and a driving method thereof 失效
    同步电机驱动单元及其驱动方法

    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。

    Air pressure warning device of vehicle tire
    56.
    发明授权
    Air pressure warning device of vehicle tire 失效

    公开(公告)号：US06622553B2

    公开(公告)日：2003-09-23

    申请号：US10309327

    申请日：2002-12-04

    申请人： Toshio Hayashi ,  Fumitaka Andou ,  Kazufumi Adachi ,  Kiyoshi Sakamoto

    发明人： Toshio Hayashi ,  Fumitaka Andou ,  Kazufumi Adachi ,  Kiyoshi Sakamoto

    IPC分类号： G01M1702

    CPC分类号： B60C23/0408

    摘要： An air pressure warning device of a vehicle tire has an excessive/deficient amount calculation module (10b) for calculating an excessive/deficient amount on the basis of the difference between a normal air pressure stored in a normal air pressure storage module (10a) and a detected tire air pressure, an informing control module (10c) for controlling an informing module (11) to inform an excessive/deficient state of the tire air pressure determined based on the calculated excessive/deficient amount, and a normal air pressure correction module 10e for increasing the readout normal air pressure by a predetermined value when an expressway traveling detection module (10d) detects that the vehicle is on an expressway.

    Electric power steering system for vehicle
    57.
    发明授权
    Electric power steering system for vehicle 失效

    公开(公告)号：US06598699B2

    公开(公告)日：2003-07-29

    申请号：US09903677

    申请日：2001-07-13

    申请人： Shin Takehara ,  Kiyoshi Sakamoto

    发明人： Shin Takehara ,  Kiyoshi Sakamoto

    IPC分类号： B62D504

    CPC分类号： B62D5/0463 ,  B62D5/0466

    摘要： An electric power steering system determines an assist control quantity for assist control by multiplying a turning torque applied to a steering wheel by a control gain, a damping control quantity for damping control by multiplying a rotational speed of motor by a control gain and a feedback control quantity for steering angle feedback control from a deviation between a target rotational speed of motor determined on the basis of the turning torque and an actual rotational speed of motor, and controls an electric motor with a motor control quantity that is determined on the basis of the assist control quantity, the damping control quantity and the feedback control quantity.

    Electric power steering apparatus for motor vehicle
    58.
    发明授权
    Electric power steering apparatus for motor vehicle 有权

    公开(公告)号：US06564898B2

    公开(公告)日：2003-05-20

    申请号：US09922789

    申请日：2001-08-07

    申请人： Shin Takehara ,  Kiyoshi Sakamoto

    发明人： Shin Takehara ,  Kiyoshi Sakamoto

    IPC分类号： B62D504

    CPC分类号： B62D3/123 ,  B62D5/0421

    摘要： In an electric power steering apparatus for a motor vehicle comprising a rack shaft (1) provided with first and second rack portions (14 and 15), a pinion (21) of a steering shaft for meshing with the first rack portion (14), and a pinion (31) of an electric motor (34) for meshing with the second rack portion (15), the first rack portion (14) is constructed to have a constant gear ratio and the second rack portion (15) is constructed to have a variable ratio so that an abnormal feeling during a steering operation is prevented and the lock to lock of a steering wheel is reduced to a small value.

    Power inverter device
    59.
    发明授权
    Power inverter device 有权
    电源逆变器装置

    公开(公告)号：US6028779A

    公开(公告)日：2000-02-22

    申请号：US199584

    申请日：1998-11-25

    申请人： Kiyoshi Sakamoto ,  Takashi Ikimi ,  Kenichi Onda ,  Masahiro Tobise

    发明人： Kiyoshi Sakamoto ,  Takashi Ikimi ,  Kenichi Onda ,  Masahiro Tobise

    IPC分类号： H02M1/00 ,  H02M7/00 ,  H02M7/483 ,  H02H7/122 ,  H02M7/5387

    CPC分类号： H02M7/003

    摘要： In order to provide a power inverter device which can reduce surge voltages in all of the operating conditions thereof and has a simple structure, in a neutral point clamped 3 level type power inverter device formed by connecting semiconductor switching elements, diodes and smoothing use capacitors connected via plate shaped conductors, a first plate shaped conductor connects the diodes and the smoothing use capacitors and a plurality of plate shaped conductors connecting the elements are disposed over the first plate shaped conductor and separated from it by an insulating material.

    摘要翻译： 为了提供能够在其所有工作条件下降低浪涌电压并且具有简单结构的电力逆变器装置，在通过连接半导体开关元件，二极管和平滑使用电容器连接而形成的中性点钳位3级型电力逆变器装置 通过板状导体，第一板状导体连接二极管和平滑使用电容器，并且连接元件的多个板状导体设置在第一板状导体上并与绝缘材料分离。

    Apparatus for inputting image forming condition
    60.
    发明授权
    Apparatus for inputting image forming condition 失效
    用于输入图像形成条件的装置

    公开(公告)号：US4764789A

    公开(公告)日：1988-08-16

    申请号：US73817

    申请日：1987-07-15

    申请人： Hiroshi Iwaki ,  Kiyoshi Sakamoto ,  Akira Inada ,  Shinichi Kikkawa

    发明人： Hiroshi Iwaki ,  Kiyoshi Sakamoto ,  Akira Inada ,  Shinichi Kikkawa

    IPC分类号： G03G15/00

    CPC分类号： G03G15/5016

    摘要： An apparatus for inputting image forming condition includes a display having item displaying portion in which a plurality of items of image forming condition for controlling image forming process are respectively displayed for each item and cursor displaying portion in which a plurality of cursors are formed so as to correspond to the respective items. A desired one of a plurality of cursors included in the cursor displaying portion is selectively displayed by a cursor key. When a given item is designated by the cursor key and a change key is operated in that state, content of that item is changed for every operations of the change key. The content lastly changed is inputted as image forming condition of that item.

    摘要翻译： 一种用于输入图像形成条件的装置包括具有项目显示部分的显示器，其中分别显示用于每个项目的多个用于控制图像形成处理的图像形成条件和形成多个光标的光标显示部分，以便 对应于各个项目。 通过光标键选择性地显示包含在光标显示部分中的多个光标中期望的一个光标。 当通过光标键指定给定项目并且在该状态下操作改变键时，对于改变键的每个操作，该项目的内容被改变。 作为该项目的图像形成条件输入最后改变的内容。