公开(公告)号：US20190214928A1

公开(公告)日：2019-07-11

申请号：US16330844

申请日：2017-08-01

申请人： Nidec Corporation

发明人： Ahmad GHADERI

IPC分类号： H02P21/09 ,  H02P21/16 ,  H02P21/22 ,  B62D5/04

CPC分类号： H02P21/09 ,  B62D5/0409 ,  B62D5/0463 ,  H02P6/00 ,  H02P21/16 ,  H02P21/22 ,  H02P23/24

摘要： A motor control method includes acquiring a component BEMFα on an α-axis and a component BEMFβ on a β-axis of counter electromotive force of a motor in an αβ-fixed coordinate system; performing time differentiation on the component BEMFα on the α-axis and the component BEMFβ on the β-axis; obtaining a difference value between first and second multiplication values, the first multiplication value being obtained by multiplying the component BEMFα on the α-axis by a differential value of the component BEMFβ on the β-axis, the second multiplication value being obtained by multiplying the component BEMFβ on the β-axis by a differential value of the component BEMFα on the α-axis; detecting a rotation direction of the rotor based on the difference value; and controlling the motor based on a detection result of the rotation direction of the rotor.

公开(公告)号：US20190208960A1

公开(公告)日：2019-07-11

申请号：US16354579

申请日：2019-03-15

申请人： DE'LONGHI BRAUN HOUSEHOLD GMBH

发明人： Christian Schroeder ,  Christoph Eissengarthen ,  Sabine Buhl-Remmel ,  Christof Kleemann

IPC分类号： A47J43/04 ,  A47J43/044 ,  A47J43/08 ,  H02P29/40 ,  A47J43/07 ,  H02P6/00

CPC分类号： A47J43/04 ,  A47J43/044 ,  A47J43/0755 ,  A47J43/082 ,  A47J2043/04409 ,  H02P6/00 ,  H02P29/40

摘要： The invention relates to a hand-held electrically driven domestic appliance and to a corresponding method for controlling the hand-held electrically driven domestic appliance. The domestic appliance includes an electric motor for driving the domestic appliance; a control unit for controlling the motor; a first actuation element for outputting a first control signal to the control unit in order to select a motor control mode; and a second actuation element for outputting a second control signal to the control unit. The control unit is designed to select a motor actuation mode from the specified motor actuation modes on the basis of the first control signal, and the control unit is designed to determine a motor actuation signal to be output to the motor on the basis of the selected motor actuation mode and the second control signal.

公开(公告)号：US20180351489A1

公开(公告)日：2018-12-06

申请号：US15780258

申请日：2016-02-01

申请人： Chun To Lau

发明人： Chun To Lau

IPC分类号： H02P7/29 ,  H02P7/03

CPC分类号： H02P7/29 ,  H02P6/00 ,  H02P6/08 ,  H02P6/085 ,  H02P7/03 ,  H02P7/04 ,  H02P2209/11 ,  Y02P80/116

摘要： A multi-phase brushless direct-current motor and a drive method therefor. The motor comprises a motor body and a driving module, and the driving module comprises a controller, a plurality of H-bridge unipolar inverters each of which for a respective phase, and independent phase coil windings (1) which are successively electrically connected. The method comprises: outputting pulse width-modulated sine waves with identical frequency and amplitude from the controller thereby driving respective ones of the plurality of H-bridge unipolar inverters for each phase; wherein the pulse width-modulated sine waves correspond to every two adjacent phase coil windings having a non-zero phase difference, and phase differences of the plurality of phase coil windings are identical; and outputting sine wave driving voltages or sine wave driving currents in their corresponding phases from the respective ones of the plurality of H-bridge unipolar inverters to the corresponding, electrically connected phase coil windings. The multi-phase brushless direct-current motor and the drive method therefor can realize sine-shaped voltage or current driving, thereby improving the efficiency and reducing noise.

公开(公告)号：US20180117734A1

公开(公告)日：2018-05-03

申请号：US15808446

申请日：2017-11-09

申请人： OY KWH MIRKA AB

发明人： Caj Nordstrom

IPC分类号： B24B47/12 ,  B24B23/00 ,  B24B23/02 ,  B24B23/04 ,  B23Q11/12

CPC分类号： B24B47/12 ,  B23Q11/127 ,  B24B23/00 ,  B24B23/02 ,  B24B23/04 ,  H02M1/4208 ,  H02M1/4225 ,  H02M2001/4291 ,  H02P6/00 ,  H02P29/00 ,  Y02P70/177

摘要： The present invention particularly relates to a hand-held sanding machine with an outer housing (1), a tool shaft (2) and a brushless electric drive motor. In the present invention, the rotor of the drive motor is fastened to the tool shaft (2) of the sanding machine, and the stator (6) is positioned in the outer housing (1). The present invention also relates to a control method for an electric sanding machine.

公开(公告)号：US09742343B2

公开(公告)日：2017-08-22

申请号：US15026887

申请日：2013-10-04

申请人： TBK Co., Ltd.

发明人： Kazuaki Okamoto ,  Hirotada Yoshitani

IPC分类号： H02P29/00 ,  H02P6/00 ,  F04B15/02 ,  F04B17/03 ,  F04B49/06 ,  F04B53/08 ,  F04C13/00 ,  F04D13/06 ,  F04D29/58 ,  F04C2/18 ,  F04C15/00 ,  H02P29/62

CPC分类号： H02P29/62 ,  F04B15/02 ,  F04B17/03 ,  F04B49/065 ,  F04B53/08 ,  F04C2/18 ,  F04C13/001 ,  F04C13/004 ,  F04C15/008 ,  F04C15/0096 ,  F04C2210/44 ,  F04C2270/19 ,  F04C2270/46 ,  F04C2270/86 ,  F04D13/0606 ,  F04D29/588 ,  H02P6/00

摘要： An electric oil pump constructed by integrally combining an electric motor with an oil pump, wherein the electric motor is composed of a motor casing, a drive shaft that is disposed in a motor housing chamber formed inside the motor casing and is rotatably supported, a rotor that is disposed on the drive shaft, and a stator that is located inside the motor housing chamber and is attached to the motor casing. The electric oil pump is equipped with an internal controller that controls application of electric power to the stator so as to cause the drive shaft to be driven to rotate via the rotor.

公开(公告)号：US20170129090A1

公开(公告)日：2017-05-11

申请号：US15341164

申请日：2016-11-02

申请人： MAKITA CORPORATION

发明人： Hirokatsu YAMAMOTO

IPC分类号： B25F5/00 ,  G08C17/02

CPC分类号： B25F5/00 ,  G06F9/4812 ,  G08C17/02 ,  G08C2201/10 ,  H02P6/00

摘要： An electric working machine including a motor, an electric-power supply unit, a control unit, and a signal processing unit. The signal processing unit performs a signal control process for sending and receiving a signal to and from the signal processing unit and an external device, and receives at least a stop-command signal from the external device. The control unit stops the electric power supply to the motor in a case where the stop-command signal is received at the signal processing unit when the electric power supply from the electric-power supply unit to the motor is in process.

公开(公告)号：US09571015B2

公开(公告)日：2017-02-14

申请号：US14332368

申请日：2014-07-15

申请人： ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD.

发明人： Yong Zhao ,  Wenqing Bian ,  Chuping Lu

IPC分类号： H02K5/04 ,  H02P6/00 ,  F24F11/00 ,  H02P6/16 ,  H02K5/22

CPC分类号： H02P6/00 ,  H02K5/04 ,  H02K5/225 ,  H02K11/215 ,  H02K11/33 ,  H02K11/35 ,  H02P6/16

摘要： A DC permanent magnet synchronous motor, including: a motor body including a rotating shaft, a permanent rotor assembly, a stator assembly, and a housing assembly; a motor controller including a first microprocessor for drive control, an inverter circuit, and a detection circuit for detecting operating parameters of the motor; and an external control card including a second microprocessor for application control. The operating parameters of the motor are input into the first microprocessor by the detection circuit. The first microprocessor outputs a PWM signal to control the inverter circuit. An output end of the inverter circuit is connected to a coil winding. The external control card is disposed outside the motor body and is connected to the motor body via an electric wire. The second microprocessor and the first microprocessor are interconnected so that they can communicate.

摘要翻译： 一种直流永磁同步电动机，包括：包括旋转轴的电动机主体，永久转子组件，定子组件和壳体组件; 电动机控制器，包括用于驱动控制的第一微处理器，逆变器电路和用于检测电动机的运行参数的检测电路; 以及包括用于应用控制的第二微处理器的外部控制卡。 电机的工作参数由检测电路输入第一个微处理器。 第一个微处理器输出PWM信号来控制逆变器电路。 逆变器电路的输出端连接到线圈绕组。 外部控制卡设置在电机主体的外部，并通过电线连接到电动机主体。 第二微处理器和第一微处理器相互连接，使得它们能够通信。

公开(公告)号：US20160375570A1

公开(公告)日：2016-12-29

申请号：US15114342

申请日：2015-02-25

申请人： Robert Bosch GmbH

发明人： Cornelius Boeck ,  Daniel Barth ,  Joachim Schadow ,  Joerg Maute ,  Joern Stock ,  Florian Esenwein ,  Manfred Lutz

IPC分类号： B25F5/00 ,  B24B23/02 ,  G05B19/4062 ,  B25B23/147 ,  B23Q11/00 ,  B23D59/00 ,  B25D11/00

CPC分类号： B25F5/00 ,  B23D59/001 ,  B23Q11/0078 ,  B23Q11/06 ,  B24B23/028 ,  B25B23/147 ,  B25D11/00 ,  B25D2250/195 ,  B25D2250/221 ,  B25F5/008 ,  B28D7/005 ,  G05B19/4062 ,  G05B2219/42113 ,  H02P6/00

摘要： A machine tool device includes at least one open-loop and/or closed-loop control unit and at least one drive-unit sensor unit configured to sense at least one drive-unit characteristic value, which can be processed by the open-loop and/or closed-loop control unit at least for open-loop and/or closed-loop control of a drive unit of a machine tool and/or for an output of information to an operator. The machine tool device further includes at least one processing-tool sensor unit configured to sense at least one processing-tool characteristic value, which can be processed by the open-loop and/or closed-loop control unit at least for open-loop and/or closed-loop control of the drive unit and/or for an output of information to an operator.

摘要翻译： 一种机床装置包括至少一个开环和/或闭环控制单元和至少一个驱动单元传感器单元，该至少一个驱动单元传感器单元被配置为感测至少一个可由开环处理的驱动单元特性值， /或闭环控制单元，至少用于机床的驱动单元的开环和/或闭环控制和/或用于向操作者输出信息。 所述机床装置还包括至少一个处理工具传感器单元，所述至少一个处理工具传感器单元被配置为感测至少一个处理工具特性值，所述至少一个处理工具特性值至少可以由开环和/或闭环控制单元处理， /或驱动单元的闭环控制和/或向操作者输出信息。

公开(公告)号：US20160329856A1

公开(公告)日：2016-11-10

申请号：US15109473

申请日：2014-05-20

申请人： Mitsubishi Electric Corporation

发明人： Tomohisa SHODA ,  Yasufumi OGAWA ,  Yoshimasa NISHIJIMA

IPC分类号： H02P29/68 ,  H02P6/06 ,  H02K11/26 ,  H02K11/27 ,  H02P27/08 ,  H02K11/21

CPC分类号： H02P29/68 ,  H02K11/21 ,  H02K11/26 ,  H02K11/27 ,  H02P6/00 ,  H02P6/06 ,  H02P23/00 ,  H02P27/08 ,  H02P27/085

摘要： An electric motor control device drives a power converter (30) by two-phase modulation drive based on calculation of a driving method setting and element loss calculation section (16) when an electric motor (4) is equal to or less than a predetermined rotational speed; and switches switching signals from a switching signal generation section (14) to switch a switching operation of the switching elements when a loss integrated value of a first switching element with a large switching loss or a second switching element exceeds a predetermined value.

摘要翻译： 电动机控制装置，当电动机（4）等于或小于预定旋转时，基于驱动方法设定和元件损失计算部（16）的计算，通过两相调制驱动来驱动功率转换器（30） 速度; 并且当具有大开关损耗的第一开关元件的损耗积分值或第二开关元件超过预定值时，切换来自开关信号产生部分（14）的开关信号以切换开关元件的开关操作。

公开(公告)号：US20160274152A1

公开(公告)日：2016-09-22

申请号：US15063093

申请日：2016-03-07

申请人： Takeo SEKI

发明人： Takeo SEKI

IPC分类号： G01R19/25 ,  G01L3/00 ,  G01R15/14

CPC分类号： G01R19/25 ,  G01R31/343 ,  H02P6/00

摘要： There is provided a current measuring apparatus for measuring a first current used for estimating a load torque of the motor, comprising: a detection unit configured to detect a first voltage; an amplification unit including a first input terminal at which the second signal is input, a second input terminal coupled to a first resistor and a second resistor by which an amplification factor is defined, an output terminal for outputting a third signal, a first power supply terminal that is grounded, and a second power supply terminal coupled to a first power supply; an input unit configured to input a second voltage at the first input terminal; a storage unit configured to store a third voltage; an acquisition unit configured to acquire a fourth voltage; and a calculation unit configured to calculate the first current based on a difference between the third voltage and the fourth voltage.

摘要翻译： 提供了一种用于测量用于估计电动机的负载转矩的第一电流的电流测量装置，包括：检测单元，被配置为检测第一电压; 放大单元，包括输入第二信号的第一输入端，耦合到第一电阻的第二输入端和限定放大系数的第二电阻，用于输出第三信号的输出端，第一电源 接地的端子和耦合到第一电源的第二电源端子; 输入单元，被配置为在所述第一输入端子处输入第二电压; 存储单元，被配置为存储第三电压; 获取单元，被配置为获取第四电压; 以及计算单元，被配置为基于所述第三电压和所述第四电压之间的差来计算所述第一电流。