公开(公告)号：US12126287B2

公开(公告)日：2024-10-22

申请号：US17801848

申请日：2021-02-22

Applicant: Fanuc Corporation

Inventor： Kenji Takahashi ,  Tomohisa Tsutsumi

IPC: H02P6/185 ,  H02P6/18 ,  H02P6/20 ,  H02P21/18 ,  H02P25/026

CPC classification number: H02P25/026 ,  H02P6/18 ,  H02P2203/03 ,  H02P2207/05

Abstract: Provided is a magnetic pole position detection device with which it is possible to shorten the detection time of the initial magnetic pole position of the rotor of a synchronous motor. A magnetic pole position detection device that detects the magnetic pole position of the rotor of the synchronous motor, the magnetic pole position detection device comprising an excitation command unit that excites the synchronous motor while changing the current phase of the excitation current from a preset initial value, and a torque zero determination unit that determines whether the torque generated by the rotor has reached zero, the excitation command unit: continuously executing an operation for exciting the synchronous motor using, as the current phase of the excitation current, a value obtained with a subtraction process for subtracting, from the initial value, a phase angle corresponding to the cumulative value of the movement amount of the rotor from the starting point of excitation at the initial value of the current phase, during the period after the synchronous rotor was excited at the initial value of the current phase until the torque is determined to have reached zero; and acquiring, as the magnetic pole initial position, the value obtained with the subtraction process when the torque is determined to have reached zero.

公开(公告)号：US09543876B2

公开(公告)日：2017-01-10

申请号：US13922853

申请日：2013-06-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Dhaval Patel ,  David A. Fox ,  Jason A. Ohnemus ,  Albert L. Markunas

IPC: F02N11/04 ,  H02K23/52 ,  H02P25/02 ,  H02P1/16 ,  H02P6/18 ,  F02C7/275 ,  H02K19/12 ,  H02K19/28

CPC classification number: H02P25/026 ,  F02C7/275 ,  H02K19/12 ,  H02K19/28 ,  H02P1/16 ,  H02P6/18 ,  H02P6/186 ,  H02P25/03 ,  Y02T50/671

Abstract: A brushless, three phase wound field synchronous machine (WFSM) provides an electromechanical power transfer system wherein it may serve as both a starter and a generator. Power for the excitation system of the WFSM is provided by a three phase flux switching generator (FSG). The three phase FSG also provides position sensor functionality for the WFSM when the WFSM operates in the starter/motor mode.

Abstract translation: 无刷三相绕线现场同步电机（WFSM）提供了一种机电式电力传输系统，其中可兼用起动器和发电机。 WFSM励磁系统的功率由三相磁通切换发生器（FSG）提供。 当WFSM在起动/电机模式下运行时，三相FSG还为WFSM提供位置传感器功能。

公开(公告)号：US08963476B2

公开(公告)日：2015-02-24

申请号：US13821576

申请日：2012-03-02

Applicant: Enzo Illiano

Inventor： Enzo Illiano

IPC: H02P1/46 ,  H02P25/02 ,  H02P9/12 ,  H02P9/30

CPC classification number: H02P25/021 ,  H02P9/123 ,  H02P9/302 ,  H02P25/024 ,  H02P25/026 ,  H02P25/03 ,  H02P2207/05

Abstract: A separately excited synchronous machine (1b1k) with an excitation circuit on the side of the rotor includes an excitation winding (3) and a power supply for the excitation winding (3) as well as a switching element (8a, 8e) for connecting the power supply to the excitation winding (3). Further, the synchronous machine (1b1k) comprises a first stator-side primary winding (5a5f) and a first rotor-side secondary winding (6a6f). Moreover, the synchronous machine (1b1k) may comprise a) a tap of the first rotor-side secondary winding (6d) connected to a control element (9a, 9e) of the switching element (8a, 8e) or b) a second rotor-side secondary winding (14d), which is coupled to the first stator-side primary winding (5a5f) and connected to a control element (9a, 9e) of the switching element (8a, 8e).

Abstract translation: 在转子侧具有励磁电路的分别励磁的同步电机（1b1k）包括励磁绕组（3）和用于励磁绕组（3）的电源以及用于连接励磁绕组的开关元件（8a，8e） 励磁绕组供电（3）。 此外，同步机（1b1k）包括第一定子侧初级绕组（5a5f）和第一转子侧次级绕组（6a6f）。 此外，同步机（1b1k）可以包括a）连接到开关元件（8a，8e）的控制元件（9a，9e）的第一转子侧次级绕组（6d）的抽头或b）第二转子 （14d），其连接到第一定子侧初级绕组（5a5f）并连接到开关元件（8a，8e）的控制元件（9a，9e）。

公开(公告)号：US20130169196A1

公开(公告)日：2013-07-04

申请号：US13508367

申请日：2009-11-06

Applicant: Richard Markham

Inventor： Richard Markham

IPC: H02P7/00

CPC classification number: H02P7/00 ,  H02P6/08 ,  H02P6/181 ,  H02P25/026 ,  H02P25/03 ,  H02P2209/07

Abstract: This system provides a wide range of smooth and precisely controlled low and high speeds for pan-tilt-zoom surveillance cameras, in which a brushless motor is controlled by a Microcontroller in a low speed mode by sinusoidal synchronous commutation, in a high speed mode by block commutation, and in in a transition phase from the low speed mode to the high speed mode by modulating integrated pulse-width modulation (PWM) square waves with sine waves. PID and lookup table registers are used by a microcontroller for a smooth transition from high speed mode to low speed mode, and from low speed mode to high speed mode, phase locking a sine position during transitions, in order to give a surveillance camera an ability to quickly move from one target to another at up to 100 degrees per second yet track objects that are moving very slowly.

Abstract translation: 该系统为俯仰式变焦监控摄像机提供了广泛的平滑和精确控制的低和高速度，其中无刷电动机由低速模式的微控制器通过正弦同步换向以高速模式由高速模式由 通过用正弦波调制集成脉宽调制（PWM）方波，在从低速模式到高速模式的转换阶段中进行块换向。 PID和查找表寄存器由微控制器用于从高速模式到低速模式的平滑过渡，以及从低速模式到高速模式，在转换期间锁定正弦位置，以便为监控摄像机提供能力 以每秒高达100度的速度从一个目标快速移动到另一个目标，然后追踪移动速度非常慢的物体。

公开(公告)号：US20120313462A1

公开(公告)日：2012-12-13

申请号：US13492017

申请日：2012-06-08

Applicant: Holger Hartmann ,  Gerd Futterlieb

Inventor： Holger Hartmann ,  Gerd Futterlieb

IPC: H02K11/00

CPC classification number: H02K11/0047 ,  H02H6/00 ,  H02H7/0852 ,  H02K5/08 ,  H02K11/25 ,  H02K11/33 ,  H02P25/026 ,  H02P25/03 ,  H02P29/64

Abstract: A stator for a brushless, electronically commutated electric motor having a stator core wound with stator windings and control electronics for controlling the stator windings. The stator core together with the stator windings are enclosed in a molded encapsulation made of a plastic material of a defined thermal conductivity (λSt). The temperature sensor is arranged on the outside at the encapsulation, and the control electronics are designed such that they calculate the temperature in the region of the stator windings on the basis of the temperature detected by the temperature sensor taking into account a specific stator temperature profile stored in a memory. Furthermore, the invention relates to a brushless, electronically commutated electric motor having a stator as described above.

Abstract translation: 一种用于无刷电子换向电动机的定子，其具有缠绕有定子绕组的定子铁心和用于控制定子绕组的控制电子装置。 定子芯与定子绕组一起封装在由具有限定导热性（λSt）的塑料材料制成的模制封装中。 温度传感器以封装方式布置在外部，并且控制电子器件被设计成使得它们基于温度传感器检测到的温度来计算定子绕组区域中的温度，该温度考虑了特定的定子温度曲线 存储在内存中。 此外，本发明涉及一种具有如上所述的定子的无刷电子换向电动机。

公开(公告)号：US08106612B2

公开(公告)日：2012-01-31

申请号：US12594064

申请日：2008-03-28

Applicant: Tomomi Harada ,  Tatsuya Arai

Inventor： Tomomi Harada ,  Tatsuya Arai

IPC: H02P1/04

CPC classification number: H02P6/16 ,  H02K7/006 ,  H02K21/227 ,  H02K29/12 ,  H02P6/181 ,  H02P6/20 ,  H02P6/21 ,  H02P25/026 ,  H02P2203/00

Abstract: A brushless motor control device according to the present invention drives a brushless motor including a stator having coils of three phases U, V, and W and a neutral line, and a sub coil provided in any one phase of the phases U, V, and W, for detecting a voltage induced in the coil of the one phase, and the brushless motor control device carries out a conduction control function, for the respective phase coils of the brushless motor, that performs a 120° conduction when a rotation speed of the brushless motor is lower than or equal to a predetermined rotation speed, and that performs a 180° conduction when the rotation speed is higher than or equal to the predetermined rotation speed, and the brushless motor control device includes a motor control unit that controls the brushless motor based on information of the rotor stop position when activating the brushless motor, controls the brushless motor based on the first rotor position information when in the 120° conduction, and controls the brushless motor based on the second rotor position information when in the 180° conduction.

Abstract translation: 根据本发明的无刷电动机控制装置驱动包括具有三相U，V，W和中线的线圈的定子的无刷电动机和设置在相U，V和V的任一相中的副线圈 W，用于检测一相线圈中感应的电压，无刷电动机控制装置对无刷电动机的各相线圈执行导通控制功能，当无刷电动机的转速为 无刷电动机低于或等于预定转速，并且当转速高于或等于预定转速时执行180°导通，并且无刷电动机控制装置包括控制无刷电动机的电动机控制单元 电机基于转子停止位置的信息，当启动无刷电机时，在120°导通时基于第一转子位置信息控制无刷电机， 在180°导通时，基于第二转子位置信息，无刷电动机。

公开(公告)号：US20100098563A1

公开(公告)日：2010-04-22

申请号：US12375951

申请日：2006-08-04

Applicant: Jun Liu ,  Songbo Gou ,  Yongjian Tang ,  Hingli Cong

Inventor： Jun Liu ,  Songbo Gou ,  Yongjian Tang ,  Hingli Cong

IPC: F04B47/02 ,  H02P6/16

CPC classification number: H02K7/003 ,  E21B43/121 ,  E21B43/126 ,  F04B47/02 ,  F04C2/1071 ,  F04C14/08 ,  F04C15/008 ,  H02K29/00 ,  H02P6/14 ,  H02P6/16 ,  H02P6/28 ,  H02P25/026 ,  H02P25/03 ,  Y10T74/18576 ,  Y10T74/18664

Abstract: A surface motor direct-drive sucker-rod screw pump device is driven by a vertical three-phase permanent magnet brush-less DC motor, and comprises a motor controller (6), a rectifying circuit, an inversion circuit, a CPU and a driving circuit. The motor controller (6) is used to adjust the voltage and frequency of the motor by the rectifying circuit, the inversion circuit, the CPU and the driving circuit. Thus, the speed of the motor can vary from zero to the maximum. The device is easy to operate and has a higher efficiency.

Abstract translation: 表面马达直驱式抽油杆螺杆泵装置由立式三相永磁无刷直流电机驱动，包括电机控制器（6），整流电路，反相电路，CPU和驱动 电路。 电机控制器（6）用于通过整流电路，反相电路，CPU和驱动电路来调节电机的电压和频率。 因此，电动机的速度可以从零变化到最大。 该设备易于操作，效率更高。

公开(公告)号：US20190207545A1

公开(公告)日：2019-07-04

申请号：US16311836

申请日：2017-04-21

Applicant: Robert Bosch GmbH

Inventor： Martin Braun ,  Holger Rapp ,  Stefan Kurz

IPC: H02P21/14 ,  H02P6/182 ,  H02P6/10 ,  H02P25/026

CPC classification number: H02P21/14 ,  H02P6/10 ,  H02P6/182 ,  H02P25/026

Abstract: The present invention provides control for synchronous machines in order to achieve an approximately constant torque irrespective of the load angle. The induced voltage of the synchronous machine rotating with a zero-current of the stator is first determined. Starting from the voltage plot of the induced voltage over the load angle, a current plot which achieves a constant torque irrespective of the load angle or any other default settings, can then be calculated. In particular, a non-sinusoidal current plot can also be calculated for non-sinusoidal plots of the induced voltage in the synchronous machine, in order to achieve desired settings that are as constant as possible irrespective of the load angle of the synchronous machine.

公开(公告)号：US20190052198A1

公开(公告)日：2019-02-14

申请号：US15759695

申请日：2017-10-03

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Masaki HANO ,  Naoki OKAMOTO

IPC: H02P6/08 ,  H02P6/182 ,  H02P27/08 ,  H02P29/66 ,  H02P23/00 ,  G01R19/165 ,  H02P6/28

CPC classification number: H02P6/08 ,  G01R19/16547 ,  H02P6/182 ,  H02P6/28 ,  H02P23/0027 ,  H02P23/14 ,  H02P25/026 ,  H02P25/03 ,  H02P27/085 ,  H02P29/66

Abstract: The present invention provides a control device and a control method for a brushless motor, including energization modes for selecting a phase to be energized by pulse width modulation operation from among phases of the brushless motor, and being provided for controlling the rotation speed of the brushless motor by switching between the energization modes based on comparison of a voltage induced in a non-energized phase with its threshold value. In the control device and method, the input voltage of the brushless motor is increased when the duration for which the induced voltage is maintained unchanged or the duration for which the current energization mode is maintained employed reaches a predetermined time. This prevents the brushless motor from being staying in the stopped state, even when the load on the brushless motor abruptly increases while the brushless motor rotates at a speed within an extremely low speed range.

公开(公告)号：US09467085B1

公开(公告)日：2016-10-11

申请号：US14670301

申请日：2015-03-26

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Tsutomu Murata

IPC: H02K33/00 ,  H02P1/00 ,  H02P3/00 ,  H02P25/02 ,  H02P3/02

CPC classification number: H02P25/026 ,  H02P6/182 ,  H02P25/032

Abstract: A method for controlling haptic feedback in an electronic device, in some embodiments, comprises: generating a series of braking pulses to stop vibrations generated by a vibration motor in the electronic device; during a high impedance period between at least one pair of pulses in said series of braking pulses, determining a rate of change of an induced voltage associated with the vibration motor; and if said rate of change meets a requirement, ceasing said generation of the series of braking pulses.

Abstract translation: 在一些实施例中，一种用于控制电子设备中的触觉反馈的方法包括：产生一系列制动脉冲以停止由电子设备中的振动电机产生的振动; 在所述一系列制动脉冲中的至少一对脉冲之间的高阻抗周期期间，确定与所述振动电动机相关联的感应电压的变化率; 并且如果所述变化率符合要求，则停止所述一系列制动脉冲的产生。