公开(公告)号：US20090010582A1

公开(公告)日：2009-01-08

申请号：US11885935

申请日：2006-03-01

Applicant: Takayoshi Ozaki ,  Tomomi Ishikawa ,  Kentarou Nishikawa

Inventor： Takayoshi Ozaki ,  Tomomi Ishikawa ,  Kentarou Nishikawa

IPC: F16C33/30

CPC classification number: G01L5/0023 ,  B60B27/0005 ,  B60B27/0068 ,  B60B27/0094 ,  F16C19/186 ,  F16C19/522 ,  F16C2326/02 ,  G01L5/164

Abstract: A sensor-incorporated wheel support bearing assembly (18) includes an outer member (1) having an inner peripheral surface formed with double rows of raceway surfaces (4), an inner member (2) having an outer peripheral surface formed with raceway surfaces (5) opposed to the raceway surfaces (4) in the outer member (1), and double rows of rolling elements (3) interposed between the raceway surfaces (4) and (5) in the outer and inner members (1) and (2). Rings (9A) and (9B) each having an outer peripheral surface tapered is secured to the inner member (2). A displacement sensor (10) confronting the tapered outer peripheral surfaces of the rings (9A) and (9B) is mounted on the outer member (11) or a member (17) rigidly secured to the outer member (1) for measuring the distance between such displacement sensor (10) and the rings (9A) and (9B).

Abstract translation: 传感器配合的轮支撑轴承组件（18）包括外部构件（1），其具有形成有双列滚道表面（4）的内周表面，内部构件（2），其具有形成有滚道表面的外周表面（ 5）与外部构件（1）中的滚道表面（4）相对，并且在外部构件（1）和（1）中插入在滚道表面（4）和（5）之间的双列滚动元件（3） 2）。 每个具有外周面锥形的环（9A）和（9B）固定到内部构件（2）。 面对环（9A）和（9B）的锥形外周面的位移传感器（10）安装在外部构件（11）上或刚性地固定到外部构件（1）的构件（17）上，用于测量距离 在这种位移传感器（10）和环（9A）和（9B）之间。

公开(公告)号：US20070014500A1

公开(公告)日：2007-01-18

申请号：US11523067

申请日：2006-09-19

Applicant: Kenichi Iwamoto ,  Takayoshi Ozaki ,  Takashi Koike

Inventor： Kenichi Iwamoto ,  Takayoshi Ozaki ,  Takashi Koike

IPC: F16C41/04 ,  F16C13/00 ,  F16C32/00

CPC classification number: F16C19/186 ,  B60B27/0005 ,  B60B27/0068 ,  B60B27/0084 ,  B60B27/0094 ,  F16C19/185 ,  F16C19/522 ,  F16C43/04 ,  F16C2326/02

Abstract: To provide a bearing device for a wheel, in which a preload control is easy and a uniform amount of preload can be applied with a bearing seal being mounted, the bearing device for the wheel includes an outer member, an inner member and double rows of rolling elements interposed between the outer member and the inner member. The outer member has a flange on an outer periphery thereof and also has an inner periphery formed with two rolling surfaces. The inner member is formed with rolling surfaces opposed to the rolling surfaces of the outer member. The double rows of the rolling elements are interposed between the rolling surfaces of the outer member and the inner member. A sensor for detecting the amount of preload of the bearing is provided in one of the outer and inner members.

Abstract translation: 为了提供一种用于车轮的轴承装置，其中预紧力控制是容易的，并且在安装有轴承密封件的情况下可以施加均匀的预载量，用于车轮的轴承装置包括外部构件，内部构件和双列 插入在外部构件和内部构件之间的滚动元件。 外部构件在其外周上具有凸缘，并且还具有形成有两个滚动表面的内周。 内部构件形成有与外部构件的滚动表面相对的滚动表面。 滚动体的双列配置在外部构件的滚动面和内侧构件之间。 用于检测轴承的预载量的传感器设置在外部构件和内部构件之一中。

公开(公告)号：US06813301B2

公开(公告)日：2004-11-02

申请号：US09955309

申请日：2001-09-19

Applicant: Takayoshi Ozaki ,  Yuuji Yada ,  Hironori Tokunaga ,  Koji Yamada

Inventor： Takayoshi Ozaki ,  Yuuji Yada ,  Hironori Tokunaga ,  Koji Yamada

IPC: H01S322

CPC classification number: F04D29/058 ,  F16C32/0459 ,  F16C32/0465 ,  F16C32/047 ,  F16C37/005 ,  F16C2360/44

Abstract: First and second radial magnetic bearings are provided at opposing ends of a rotary shaft, first and second protective bearings are arranged in the vicinity thereof, a third radial magnetic bearing is arranged on a side of a fan near a motor, and by the third radial magnetic bearing, negative spring element of the motor is corrected.

Abstract translation: 第一和第二径向磁轴承设置在旋转轴的相对端处，第一和第二保护轴承布置在其附近，第三径向磁轴承布置在马达附近的风扇侧，并且通过第三径向 磁性轴承，马达的负弹簧元件被校正。

公开(公告)号：US06547530B2

公开(公告)日：2003-04-15

申请号：US09855744

申请日：2001-05-16

Applicant: Takayoshi Ozaki ,  Minoru Suzuki

Inventor： Takayoshi Ozaki ,  Minoru Suzuki

IPC: F04B4906

CPC classification number: F04D29/048 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/1086 ,  A61M1/122 ,  F02K7/06 ,  F02K7/067 ,  F03B3/186 ,  F03B11/06 ,  F04D13/0666 ,  F05B2240/515 ,  F05D2240/515 ,  F16C32/0444 ,  F16C2316/18 ,  Y02E10/223 ,  Y02E10/226 ,  Y10S415/90

Abstract: There is provided a fluid pump wherein in a casing at a pump unit there is provided an impeller coupled with a rotor contactless and also supported contactless by a controlled magnetic bearing unit, and rotated by a motor to output a fluid, with a position detection unit, an electromagnet or a motor stator cooled by a fluid flowing through a pump chamber.

公开(公告)号：US06468041B2

公开(公告)日：2002-10-22

申请号：US09861886

申请日：2001-05-22

Applicant: Takayoshi Ozaki

Inventor： Takayoshi Ozaki

IPC: F04B4900

CPC classification number: F04D29/048 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/1086 ,  A61M1/122 ,  F04D13/0666 ,  F16C32/0451 ,  F16C2316/18 ,  F16C2360/44 ,  Y10S415/90

Abstract: There is provided a magnetically levitated apparatus wherein an impeller has one side supported by an electromagnet and the other side supported and magnetically levitated by an attractive force created between a permanent magnet and a permanent magnet of a motor rotor rotated by a motor stator to rotate the impeller and a magnetic bearing sensor provides an output which is in turn rectified and thus shifted to have a gain adjusted and subsequently a notch filter removes a carrier wave frequency component used in the magnetic bearing sensor, to prevent a PID compensator from causing voltage saturation attributed to high frequency noise.

Abstract translation: 提供了一种磁悬浮装置，其中叶轮具有由电磁体支撑的一侧，另一侧通过在由电动机定子旋转的电动机转子的永磁体和永磁体之间产生的吸引力而被支撑并磁悬浮，以使 叶轮和磁轴承传感器提供一个输出，该输出又被整流，因此转移到具有调整的增益，随后陷波滤波器去除用于磁轴承传感器的载波频率分量，以防止PID补偿器引起电压饱和 到高频噪声。

公开(公告)号：US09381285B2

公开(公告)日：2016-07-05

申请号：US13254597

申请日：2010-02-26

Applicant: Takayoshi Ozaki ,  Hiroyuki Yamada ,  Kenichi Suzuki ,  Ken Sugiura

Inventor： Takayoshi Ozaki ,  Hiroyuki Yamada ,  Kenichi Suzuki ,  Ken Sugiura

IPC: F04D29/00 ,  A61M1/10 ,  F16C17/04 ,  F16C32/06 ,  F04D13/06 ,  F04D29/048 ,  F04D29/22 ,  F04D29/42 ,  F04D29/047

CPC classification number: F04D29/426 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  F04D13/0666 ,  F04D29/0473 ,  F04D29/048 ,  F04D29/2261 ,  F16C17/045 ,  F16C32/0692

Abstract: A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.

Abstract translation: 离心式血液泵装置包括设置在血液室中的叶轮，分别设置在一个表面和另一个表面的第一和第二永磁体，设置在血液室的内壁中的第三永磁体，以及磁性元件 以及用于驱动叶轮旋转的线圈，其中隔膜被插入。 第一和第二沟槽在形状和深度彼此不同的流体动力轴承形成在面对叶轮的血液腔的内壁中，并且在隔膜中形成有不同形状和深度的流体动力轴承的第三和第四凹槽 面向叶轮。 用于流体动力轴承的第二和第四凹槽在叶轮启动旋转时产生高的流体动力学压力，而当叶轮稳定地旋转时，用于流体动力轴承的第一和第三凹槽产生高的流体动力学压力。

公开(公告)号：US09347801B2

公开(公告)日：2016-05-24

申请号：US13583094

申请日：2011-03-04

Applicant: Takayoshi Ozaki ,  Shintarou Ueno ,  Toru Takahashi

Inventor： Takayoshi Ozaki ,  Shintarou Ueno ,  Toru Takahashi

IPC: B60L15/20 ,  G01D5/245 ,  H02P29/02 ,  H02K7/116 ,  F16H1/32

CPC classification number: G01D5/2451 ,  F16H2001/325 ,  H02K7/116 ,  H02K11/215 ,  H02P29/024 ,  H02P29/0241 ,  H02P29/028 ,  H02P29/032 ,  Y02T10/641 ,  Y02T10/7258

Abstract: To provide a motor driving system for an electrically powered automotive vehicle, in which the drive motor is rotationally controlled to increase the reliability, the use is made of an angle sensor for detecting the relative rotational angle between a stator and a rotor of a drive motor for driving the electric vehicle and a controller for controlling the rotation of the drive motor on the basis of the relative rotational angle detected by the angle sensor. The angle sensor is provided in a plural number. The controller includes an angle sensor switching unit operable to select and activate one of the plurality of the angle sensors and then to switch over to an activation of another one of the angle sensors in the event that the one of the angle sensors is determined abnormal.

Abstract translation: 为了提供一种用于电动机动车辆的电动机驱动系统，其中旋转地控制驱动电动机以增加可靠性，使用用于检测驱动电动机的定子和转子之间的相对旋转角度的角度传感器 用于驱动电动车辆和控制器，用于根据由角度传感器检测到的相对旋转角度来控制驱动电动机的旋转。 角度传感器以多个形式提供。 控制器包括角度传感器切换单元，其可操作以选择并激活多个角度传感器中的一个，然后在角度传感器中的一个被确定为异常的情况下切换到另一个角度传感器的激活。

公开(公告)号：US09252590B2

公开(公告)日：2016-02-02

申请号：US14000379

申请日：2012-02-10

Applicant: Takayoshi Ozaki

Inventor： Takayoshi Ozaki

IPC: H02P1/24 ,  H02H7/08 ,  B60L3/04 ,  B60L3/00 ,  B60K7/00 ,  H02P29/02

CPC classification number: H02H7/0822 ,  B60K7/0007 ,  B60L3/0061 ,  B60L3/0069 ,  B60L3/04 ,  B60L2220/44 ,  B60L2240/429 ,  B60L2240/529 ,  H02H7/0805 ,  H02P29/0241 ,  Y02T10/642 ,  Y02T10/7258

Abstract: An electric vehicle is proposed which can achieve early detection of abnormal short-circuit of motor coils, thus avoiding various driving problems. The electric vehicle includes a motor unit configured to drive a wheel. The motor unit includes a synchronous motor with three-phase motor coils. The three-phase motor coils include a first motor coil, a second motor coil and a third motor coil of different phases. One end of the first motor coil, one end of the second motor coil and one end of the third motor coil are connected with each other at a neutral point in a star connection. The electric vehicle also includes an abnormal short-circuit monitor configured to detect an abnormal short-circuit of the motor coils, and also includes an abnormalities-responsive disconnection unit configured to electrically disconnect the motor coils from the neutral point.

Abstract translation: 提出一种可以实现电机线圈异常短路的早期检测的电动车辆，从而避免各种驾驶问题。 电动车辆包括构造成驱动车轮的电动机单元。 电动机单元包括具有三相电动机线圈的同步电动机。 三相电动机线圈包括第一电动机线圈，第二电动机线圈和不同相的第三电动机线圈。 第一电动机线圈的一端，第二电动机线圈的一端和第三电动机线圈的一端在星形连接的中性点处彼此连接。 电动车辆还包括异常短路监视器，其被配置为检测电动机线圈的异常短路，并且还包括被配置为将电动机线圈与中性点电断开的异常响应断开单元。

公开(公告)号：US09031724B2

公开(公告)日：2015-05-12

申请号：US14000783

申请日：2012-02-10

Applicant: Takayoshi Ozaki

Inventor： Takayoshi Ozaki

IPC: B60L9/18 ,  B60L15/20 ,  B60L3/00 ,  B60L15/10 ,  B60W50/023

CPC classification number: B60L15/20 ,  B60L3/0038 ,  B60L3/0061 ,  B60L3/0092 ,  B60L15/10 ,  B60L2220/46 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/429 ,  B60L2260/26 ,  Y02T10/642 ,  Y02T10/645 ,  Y02T10/7275

Abstract: An electric vehicle includes a motor unit configured to drive a wheel, an ECU and an inverter unit. A motor control circuitry of the inverter unit includes a rotational frequency controller operable to perform rotational frequency control. The electric vehicle also includes a torque control abnormalities detector configured to detect an abnormality of torque control performed by the motor control circuitry. The electric vehicle also includes a control mode switcher configured to, in response to determination by the torque control abnormalities detector that there is an abnormality of torque control, cause the motor control circuitry to switch from torque control to rotational frequency control performed by the rotational frequency controller.

Abstract translation: 电动车辆包括：驱动车轮的马达单元，ECU和逆变器单元。 逆变器单元的电机控制电路包括可操作以执行转速控制的转速控制器。 电动车辆还包括扭矩控制异常检测器，被配置为检测由电动机控制电路执行的转矩控制的异常。 电动车辆还包括控制模式切换器，其被配置为响应于转矩控制异常检测器确定存在转矩控制异常的原因，使得电动机控制电路从转矩控制切换到由转速执行的转速控制 控制器。

公开(公告)号：US08909406B2

公开(公告)日：2014-12-09

申请号：US13985925

申请日：2012-02-10

Applicant: Takayoshi Ozaki

Inventor： Takayoshi Ozaki

IPC: B60L11/00 ,  B60L3/04 ,  B60T7/12 ,  B60T17/22 ,  B60K7/00 ,  B60K17/04 ,  B60K17/356 ,  B60L3/00 ,  B60T8/32

CPC classification number: B60L3/04 ,  B60K7/0007 ,  B60K17/046 ,  B60K17/356 ,  B60K2007/0038 ,  B60K2007/0092 ,  B60L3/003 ,  B60L3/0061 ,  B60L2220/42 ,  B60L2220/44 ,  B60L2220/46 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/429 ,  B60L2240/461 ,  B60L2260/26 ,  B60L2260/28 ,  B60T7/12 ,  B60T8/3255 ,  B60T8/329 ,  B60T17/22 ,  B60T2270/402 ,  B60T2270/406 ,  Y02T10/646 ,  Y02T10/7258

Abstract: An electric vehicle includes a malfunction detector configured to continuously monitor a torque command from an ECU as well as one of the followings: signals indicating a rotational frequency of a motor unit; signals indicating a rotational frequency of a wheel driven by the motor unit; signals indicating a rotational direction of the motor unit; signals indicating a rotational direction of the wheel driven by the motor unit; and a motor current, and detect, according to a predefined rule, a malfunction of the motor unit, based on the monitoring information. The electric vehicle also includes a malfunction-responsive controller configured to cause at least one of shut-off of a drive current to the motor unit and braking with a mechanical brake, if the malfunction detector detects a malfunction.

Abstract translation: 一种电动车辆包括：故障检测器，被配置为从ECU继续监视转矩指令，以及下列之一：表示电动机单元的转速的信号; 指示由马达单元驱动的车轮的转速的信号; 指示电机单元的旋转方向的信号; 指示由马达单元驱动的车轮的旋转方向的信号; 和电动机电流，并且根据预定规则，基于监视信息检测电动机单元的故障。 电动车还包括故障响应控制器，该故障响应控制器被配置为如果故障检测器检测到故障，则使用至少一个关闭到电动机单元的驱动电流并用机械制动进行制动。