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1. 发明授权

US11870375B2 Motor apparatus and vehicle 有权
公开(公告)号：US11870375B2
公开(公告)日：2024-01-09
申请号：US17715007
申请日：2022-04-06
申请人： NIDEC ELESYS CORPORATION
发明人： Takashi Koikegami , Satoshi Shimazu , Yuhi Nakada
IPC分类号： G05B1/06 , H02P21/18 , B60L15/00 , B60L15/20 , B60K1/00
CPC分类号： H02P21/18 , B60K1/00 , B60L15/007 , B60L15/20
摘要： A motor apparatus is provided. The motor apparatus includes a motor having a rotor and a stator, an inverter used to covert an input voltage into a three-phase alternating current (AC) voltage and provide the three-phase AC voltage to the motor, an inverter controller used to control the inverter, and a rotation angle sensor. The rotation angle sensor is fixed to the motor and is used to detect a rotation angle of the motor. The inverter controller includes a calculator. The calculator calculates an offset angle of an installation position of the rotation angle sensor according to a difference between a measured value and a theoretical value of a voltage phase of the motor.

2. 发明授权

US11362606B2 Control device for alternating-current electric motor 有权
公开(公告)号：US11362606B2
公开(公告)日：2022-06-14
申请号：US16502524
申请日：2019-07-03
申请人： DENSO CORPORATION
发明人： Yuya Fujishima
IPC分类号： H02P6/28 , H02P23/18 , G01R19/00 , G05B1/06 , G05B11/18 , G05B11/28 , H02P27/08
摘要： An inverter converts direct-current power to alternating-current power by operations of a plurality of switching elements under a PWM control, and supplies the alternating-current power to an alternating-current electric motor. A feedback control computation unit of an inverter control unit uses current values acquired from current sensors detecting a current flowing to the alternating-current electric motor and a rotation angle of the alternating-current electric motor to perform a control computation in a (N/2) cycle (N is a natural number) of a triangular wave carrier of the PWM control. At the acquisition of the current values detected by the current sensors, an average acquisition unit acquires an average of current values in a carrier half cycle as a period between a peak and a valley of the carrier, or acquires a current value regarded as an average of the current values at an acquirable timing.

3. 发明授权

US11041588B2 Method and system for controlling a gimbal 有权
公开(公告)号：US11041588B2
公开(公告)日：2021-06-22
申请号：US17015814
申请日：2020-09-09
申请人： SZ DJI OSMO TECHNOLOGY CO., LTD.
发明人： Mingyu Wang
IPC分类号： G05B1/06 , F16M13/02 , F16M11/12 , F16M11/18 , G03B17/56 , H04N5/232
摘要： A method for controlling a gimbal includes detecting a motion of the gimbal, determining whether a received control signal indicates that the motion of the gimbal corresponds to a user-intended motion, controlling the gimbal to move along a moving direction of the motion in response to determining that the received control signal indicates the motion of the gimbal corresponds to the user-intended motion, and controlling the gimbal to move along an opposite direction to the moving direction of the motion in response to determining that the received control signal does not indicate the motion of the gimbal corresponds to the user-intended motion.

4. 发明授权

US10781969B2 Method and system for controlling a gimbal 有权
公开(公告)号：US10781969B2
公开(公告)日：2020-09-22
申请号：US16105071
申请日：2018-08-20
申请人： SZ DJI OSMO TECHNOLOGY CO., LTD.
发明人： Mingyu Wang
IPC分类号： G05B1/06 , F16M13/02 , F16M11/12 , F16M11/18 , G03B17/56 , H04N5/232
摘要： A method for controlling a gimbal includes detecting a motion state of a motion of the gimbal, comparing the motion state to a preset threshold, and controlling the gimbal to move along a moving direction of the motion or to move in an opposite direction to the moving direction oldie motion based on the comparison.

5. 发明授权

US10203195B2 Noise reduction techniques, fractional bi-spectrum and fractional cross-correlation, and applications 有权
$Noise reduction techniques, fractional bi-spectrum and fractional cross-correlation, and applications$
公开(公告)号：US10203195B2
公开(公告)日：2019-02-12
申请号：US15703236
申请日：2017-09-13
申请人： Faramarz Farahi , Gelareh Babaie , Mehrdad Abolbashari
发明人： Faramarz Farahi , Gelareh Babaie , Mehrdad Abolbashari
IPC分类号： G05B1/06 , G01B11/02 , G01B11/28 , G01B9/02 , G01B11/06 , G01B11/24 , A61B3/10
摘要： A measurement method and system include illuminating an object to be measured with light at two different wavelengths and an incident angle; capturing an image of the object; detecting a frequency of an interference pattern from the image using Fractional Bi-Spectrum Analysis; and calculating a thickness of the object based on the Fractional Bi-Spectrum Analysis. The thickness is calculated based on a relationship between the thickness and the frequency of the interference pattern. The Fractional Bi-Spectrum Analysis is performed on a linear medium with the two different wavelengths being known.

6. 发明授权

US09049987B2 Hand held surgical device for manipulating an internal magnet assembly within a patient 有权
标题翻译：用于操纵患者体内的内部磁体组件的手持手术装置
公开(公告)号：US09049987B2
公开(公告)日：2015-06-09
申请号：US13420805
申请日：2012-03-15
申请人： Sean P. Conlon , Victor C. Moreno
发明人： Sean P. Conlon , Victor C. Moreno
IPC分类号： A61N2/00 , G05B1/06 , A61B1/00 , A61B17/00 , A61B19/00
CPC分类号： A61B34/70 , A61B1/00158 , A61B34/73 , A61B90/13 , A61B2017/00039 , A61B2017/00398 , A61B2017/00876 , A61B2034/302 , A61B2034/731 , A61B2034/733 , A61B2090/064 , A61B2560/0223 , A61B2562/0223
摘要： A device for manipulating a magnetic coupling force across tissue in response to a monitored coupling force is described. The device includes a magnetic field source assembly, a positioning assembly operatively connected to the magnetic field force assembly, and a magnetic coupling force monitor. The magnetic field source assembly includes magnets that provide an external magnetic field source for providing a magnetic field across tissue. The positioning assembly adjusts the position of the magnetic field source. The magnetic field creates a magnetic coupling force between the external magnetic field source and an object positioned in use in a patient during a procedure, wherein the object has or is associated with an internal magnetic field.
摘要翻译：描述了响应于监视的耦合力来操纵组织的磁耦合力的装置。该装置包括磁场源组件，可操作地连接到磁场力组件的定位组件和磁耦合力监视器。磁场源组件包括提供用于提供横跨组织的磁场的外部磁场源的磁体。定位组件调整磁场源的位置。磁场在外部磁场源和位于使用过程中的患者中的物体之间产生磁耦合力，其中物体具有或者与内部磁场相关联。

7. 发明授权

US08742715B2 System and method for providing control of an electric motor using inductive rotary sensor 有权
标题翻译：使用感应旋转传感器提供电机控制的系统和方法
公开(公告)号：US08742715B2
公开(公告)日：2014-06-03
申请号：US13156996
申请日：2011-06-09
申请人： Michael Jules Ortman , William L. Kenly, V
发明人： Michael Jules Ortman , William L. Kenly, V
IPC分类号： G05B1/06
CPC分类号： G01D5/2073
摘要： A sensor system for providing control of an electric motor having an inductive angle sensor system including a first inductive coil configured for affixation to a rotor shaft of the electric motor wherein rotation of the rotor shaft causes corresponding rotation of the first inductive coil. A second inductive coil fixedly mounted in spaced relationship to the first inductive coil. An evaluation circuit coupled to the second inductive coil and to the electric motor operative to determine a rotor shaft angle for the rotor shaft of the electric motor through evaluation of an induced magnetic field between the first and second inductive coils.
摘要翻译：一种用于提供具有感应角度传感器系统的电动机的控制的传感器系统，所述感应角度传感器系统包括构造成固定到所述电动机的转子轴的第一感应线圈，其中所述转子轴的旋转引起所述第一感应线圈的相应旋转。固定地安装成与第一感应线圈间隔开的第二感应线圈。耦合到所述第二感应线圈和所述电动机的评估电路，其用于通过评估所述第一和第二感应线圈之间的感应磁场来确定所述电动机的转子轴的转子轴角度。

8. 发明授权

US08598833B2 Electrically communtated motor with data communication device 有权
标题翻译：带数据通信装置的电动马达
公开(公告)号：US08598833B2
公开(公告)日：2013-12-03
申请号：US12966968
申请日：2010-12-13
申请人： Young Chun Jeung
发明人： Young Chun Jeung
IPC分类号： G05B1/06
CPC分类号： H05K9/0058 , H02P6/16 , H02P27/08
摘要： An electronically commutated motor (ECM) includes windings, a power switch, an infrared transceiver and an electromagnetic shield. The power switch is configured to provide pulse width modulated (PWM) power signals to the windings and to generate a substantial level of electromagnetic noises at PWM frequencies during its switching operation. The infrared transceiver is configured to communicate with an external device using infrared signals and convert electrical signals from and to infrared signals that carry data. The electromagnetic shield is configured to substantially shield the infrared transceiver from the electromagnetic noises of PWM frequencies from the power switch.
摘要翻译：电子换向电机（ECM）包括绕组，电源开关，红外收发器和电磁屏蔽。电源开关被配置为向绕组提供脉冲宽度调制（PWM）功率信号，并且在其开关操作期间在PWM频率处产生大量的电磁噪声。红外收发器配置为使用红外信号与外部设备通信，并将电信号转换为携带数据的红外信号。电磁屏蔽被配置为基本上屏蔽来自电源开关的红外收发器与PWM频率的电磁噪声。

9. 发明授权

US08525465B2 Feedback switching device and method for driving of servo motor 有权
标题翻译：反馈开关装置及驱动伺服电机的方法
公开(公告)号：US08525465B2
公开(公告)日：2013-09-03
申请号：US12964297
申请日：2010-12-09
申请人： Kuo-Lin Chiu , Chia-Min Ting , Hsin-Hung Chou
发明人： Kuo-Lin Chiu , Chia-Min Ting , Hsin-Hung Chou
IPC分类号： G05B11/01 , G05B1/06 , H02K37/00 , H02P27/00
CPC分类号： G05B19/39 , G05B2219/41383
摘要： A feedback switching device and a method allow a drive control loop for a servo motor to actively switch the feedback mode in accordance with the rotating speed of the servo motor. When the servo motor is under a high speed operation, a sensorless position estimation feedback technology is used as the feedback mode; on the other hand, when the servo motor is under a low speed operation, the switching mode is automatically switched to a position sensing feedback technology. Therefore, the development needs for multi-function, high performance and low cost in the field of the servo motor control are met, and the conventional problem is solved that, when being applied to a servo driving system having a wide speed range, the single use of the position sensing feedback technology or the sensorless position estimation feedback technology fails to satisfy the application for a wide speed range.
摘要翻译：反馈切换装置和方法允许用于伺服电动机的驱动控制回路根据伺服电动机的转速主动地切换反馈模式。当伺服电机处于高速运转状态时，采用无传感器位置估算反馈技术作为反馈模式; 另一方面，当伺服电机处于低速运行状态时，切换模式自动切换到位置检测反馈技术。因此，满足伺服电机控制领域的多功能，高性能和低成本的开发需求，并且解决了当应用于具有宽速度范围的伺服驱动系统时的常规问题，单个使用位置感测反馈技术或无传感器位置估计反馈技术不能满足宽范围的应用。

10. 发明申请

US20120194891A1 OPTICAL BEAM CONTROL BASED ON FLEXURE ACTUATION WITH POSITIONING SENSING AND SERVO CONTROL 有权
标题翻译：基于具有定位感应和伺服控制的柔性动作的光束控制
公开(公告)号：US20120194891A1
公开(公告)日：2012-08-02
申请号：US13243731
申请日：2011-09-23
申请人： Bruce Borchers , Robert Stark
发明人： Bruce Borchers , Robert Stark
IPC分类号： G02B26/10 , G02B26/08 , G05B1/06
CPC分类号： G02B26/101 , G02B26/105 , H02K41/0354
摘要： Implementations of actuators that use flexures to provide support to actuators and pivoting mechanisms to the actuators. Such actuators can be electromagnetically activated actuators that include a magnet stator and a coil rotor mounted on a flexure. A positioning sensor, such as a capacitor sensor, is provided to measure and monitor positioning of the actuator and is coupled to a feedback circuit which uses the measured positioning of the actuator to control the actuator.
摘要翻译：执行器的实施使用弯曲来向致动器提供执行器和枢转机构的支撑。这样的致动器可以是电磁致动器，其包括安装在挠曲件上的磁体定子和线圈转子。提供诸如电容器传感器的定位传感器来测量和监测致动器的定位，并且耦合到反馈电路，反馈电路使用测量的致动器的定位来控制致动器。

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