公开(公告)号：US20240356467A1

公开(公告)日：2024-10-24

申请号：US18731781

申请日：2024-06-03

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Jonathan E. Abbott ,  James Wekwert ,  Logan M. Hietpas ,  John S. Scott ,  Troy C. Thorson

IPC分类号： H02P6/06 ,  B08B9/032 ,  E01C19/40 ,  E02D3/046 ,  F16H1/14 ,  F16H1/20 ,  F16H1/28 ,  H01M50/213 ,  H02K7/116 ,  H02K11/00 ,  H02K11/27 ,  H02K11/33 ,  H02K21/16 ,  H02P6/28 ,  H02P6/34

CPC分类号： H02P6/06 ,  B08B9/0321 ,  F16H1/14 ,  F16H1/28 ,  H01M50/213 ,  H02K7/116 ,  H02K11/0094 ,  H02K11/27 ,  H02K11/33 ,  H02K21/16 ,  H02P6/28 ,  H02P6/34 ,  E01C19/402 ,  E02D3/046 ,  F16H1/20 ,  H01M2220/20

摘要： A stand-alone motor unit for use with a piece of power equipment includes a housing and a flange coupled to the housing on a first side thereof. A plurality of apertures through the flange defines a first bolt pattern that matches an identical, second bolt pattern defined in the piece of power equipment. An electric motor has a power output of at least about 2760 W. The motor includes a stator having a nominal outer diameter of up to about 80 mm and a rotor supported for rotation within the stator. A power take-off shaft receives torque from the rotor and protrudes from one of the flange or a second side of the housing. A controller is positioned within the housing and electrically connected to the motor. A battery pack for powering the motor has battery cells having a nominal voltage of up to about 80 V.

公开(公告)号：US12116713B2

公开(公告)日：2024-10-15

申请号：US17048927

申请日：2019-04-19

申请人： LG ELECTRONICS INC.

发明人： Jungmoon Je ,  Chungill Lee ,  Kiwook Lee

IPC分类号： D06F33/42 ,  D06F39/08 ,  F04D27/00 ,  D06F34/08 ,  D06F34/14 ,  D06F103/42 ,  D06F103/46 ,  D06F103/48 ,  D06F105/08 ,  F04D25/06 ,  H02P6/17 ,  H02P6/28

CPC分类号： D06F33/42 ,  D06F39/085 ,  F04D27/004 ,  D06F34/08 ,  D06F34/14 ,  D06F2103/42 ,  D06F2103/46 ,  D06F2103/48 ,  D06F2105/08 ,  F04D25/06 ,  H02P6/17 ,  H02P6/28

摘要： The present disclosure relates to a drain pump driving apparatus and a laundry treatment machine including the same. A drain pump driving apparatus according to an embodiment of the present disclosure includes a controller configured to drive a motor, during drainage, based on an output current and a direct current (DC) terminal voltage with a first power when a lift is at a first level and to drive the motor with the first power when the lift is at a second level that is greater than the first level, wherein the lift is a difference between a water level of a water introduction part through which water flows into a drain pump and a water level of a water discharge part through which the water is discharged out of the drain pump. Accordingly, water pumping can be performed smoothly even if the lift is changed during the drainage.

公开(公告)号：US20240297600A1

公开(公告)日：2024-09-05

申请号：US18116816

申请日：2023-03-02

申请人： HL MANDO CORPORATION

发明人： Awab ALI ,  Kade HUDSON ,  Tomy SEBASTIAN

IPC分类号： H02P6/182 ,  H02P6/28

CPC分类号： H02P6/182 ,  H02P6/28

摘要： A circuit for calibration a motor position in a motor having multiple phases including first, second, and third phases is electrically connected to a first phase winding and a second phase winding of the motor. The circuit comprises a comparator having first and second inputs; and a plurality of resistors electrically connected between the motor and the comparator, the plurality of resistors comprising: first parallelly-connected resistors and second parallelly-connected resistors which are connected in series and are connected between the first input of the comparator and the first phase winding of the motor, third parallelly-connected resistors and two or more fourth parallelly-connected resistors which are connected in series and are connected between the second input of the comparator and the second phase winding of the motor, and fifth parallelly-connected resistors connected in series with the second parallelly-connected resistors and connected in series with the fourth parallelly-connected resistors.

公开(公告)号：US20240171097A1

公开(公告)日：2024-05-23

申请号：US18279271

申请日：2022-03-22

申请人： Fanuc Corporation

发明人： Tatsuya Senoo

IPC分类号： H02P6/185 ,  H02P6/28

CPC分类号： H02P6/185 ,  H02P6/28 ,  H02P2207/05

摘要： Provided is a control device for a synchronous motor, the control device including a DC excitation command generation unit which generates a command for sending a DC current with a fixed current phase to a synchronous motor, and controls the magnitude of the DC current so as to apply deceleration torque to a rotor of the synchronous motor on the basis of at least one among the angular acceleration and the angular velocity of the rotor; and a magnetic pole position acquisition unit that acquires, as information indicating the magnetic pole position, the angular position of the rotor based on the output signal when a predetermined detection end condition is satisfied.

公开(公告)号：US11764717B2

公开(公告)日：2023-09-19

申请号：US17793868

申请日：2020-12-23

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hayata Sakai ,  Toru Tazawa ,  Kenta Murakami ,  Yusuke Nonogaki ,  Renya Kawakami

IPC分类号： B65G35/06 ,  H02P25/064 ,  H02P6/28 ,  H02P6/00 ,  H02P6/16

CPC分类号： H02P25/064 ,  H02P6/006 ,  H02P6/16 ,  H02P6/28

摘要： A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and first to tenth amplifiers provided in one-to-one correspondence with first to tenth coils. One or more amplifiers that serve as new one or more power supply target amplifiers immediately after the switching calculate Δθ (t0), which is a position deviation at time t=t0, based on Δθ (t0)=Δθ (t0−td)+A−B, where A is a difference between an instructed position at time t=t0 and an instructed position at time t=t0−td, and B is a difference between an actual position at time t=t0 and an actual position at time t=t0−td, and supply power to the power supply target coils by the position deviation Δθ (t0).

公开(公告)号：US20230246572A1

公开(公告)日：2023-08-03

申请号：US18007691

申请日：2020-06-03

申请人： Woodward, Inc.

发明人： Ganga P. Jayaraman ,  Dragan Micic

IPC分类号： H02P7/29 ,  H02P6/28

CPC分类号： H02P7/29 ,  H02P6/28

摘要： The subject matter of this specification can be embodied in, among other things, a method that includes receiving a first electrical current output setpoint, identifying a first operational condition based on the first electrical current output setpoint, providing, based on the identified first operational condition, a first pulse width modulated (PWM) signal having a first predetermined duty cycle, based on the first electrical current output setpoint, provided on a predetermined period, receiving a second electrical current output setpoint, identifying a second operational condition different from the first operational condition based on the second electrical current output setpoint, and providing, based on the identified second operational condition, a second PWM signal having a second predetermined duty cycle, based on the second electrical current output setpoint, provided on a predetermined multiple of the predetermined period.

公开(公告)号：US11689127B2

公开(公告)日：2023-06-27

申请号：US17511019

申请日：2021-10-26

申请人： MAKITA CORPORATION

发明人： Hitoshi Suzuki

IPC分类号： H02P6/28 ,  H02P27/08 ,  B27B9/00 ,  B23D45/16

CPC分类号： H02P6/28 ,  H02P27/08 ,  B23D45/16 ,  B27B9/00

摘要： An electric powered work machine according to one aspect of to the present disclosure includes a motor. The electric powered work machine includes a first line connecting a positive electrode of a battery to the motor. The electric powered work machine includes a second line connecting a negative electrode of the battery to the motor. The electric powered work machine includes a third line connecting the first line to the second line. The electric powered work machine includes a first capacitor disposed on the third line. The electric powered work machine includes a rectifier disposed on the third line. The rectifier limits or inhibits an electric current flowing from the second line to the first line through the third line. The electric powered work machine includes a first circuit connected to the third line. The first circuit has impedance that is other than zero, and bypasses the rectifier.

公开(公告)号：US20230184071A1

公开(公告)日：2023-06-15

申请号：US18164868

申请日：2023-02-06

申请人： Halliburton Energy Services, Inc.

发明人： Luke Golden Janger ,  Ryan Bridwell Ashbaugh ,  David Linn Self ,  Wesley John Nowitzki ,  David C. Beck

IPC分类号： E21B43/12 ,  H02K11/215 ,  H02P6/28 ,  E21B47/008 ,  F04D25/06 ,  H02K5/132 ,  F04D13/10 ,  F04D15/00

CPC分类号： E21B43/128 ,  H02K11/215 ,  H02P6/28 ,  E21B47/008 ,  F04D25/0686 ,  H02K5/132 ,  F04D13/10 ,  F04D15/0066

摘要： A method comprises operating an electric submersible pump (ESP) motor downhole in a well. The ESP motor is electrically connected to a variable speed drive (VSD) proximate to the well. The operating comprises measuring a revolution rate and a motor current of the ESP motor for a first period of time and performing a first adjustment of a voltage output of the VSD. The method comprises measuring, after the first adjustment, the revolution rate and the motor current of the ESP motor for a second period of time determining a difference between the motor current measured for the first period of time and the motor current measured for the second period of time; and performing a second adjustment of the voltage output of the VSD based on a change in the revolution rate and the motor current between the first period of time and the second period of time.

公开(公告)号：US11658592B2

公开(公告)日：2023-05-23

申请号：US17244008

申请日：2021-04-29

申请人： MINEBEA MITSUMI Inc.

发明人： Hiroyuki Kaidu ,  Masato Aoki ,  Takamichi Kitano ,  Takahiro Suzuki

IPC分类号： H02P6/182 ,  H02P6/28 ,  G05B19/042 ,  H02P6/16 ,  H02P27/08

CPC分类号： H02P6/28 ,  G05B19/042 ,  H02P6/16 ,  G05B2219/23399 ,  H02P27/08

摘要： The present disclosure provides a motor control circuit enabled to change or adjust functions to be implemented to suppress an increase in cycle time during mass production. A motor control circuit according to an exemplary embodiment of the present disclosure is a motor control circuit to control a motor driver including a first non-volatile memory and a second non-volatile memory, and the first non-volatile memory stores a control algorithm and a first parameter group to be used by the control algorithm of the motor control circuit, and the second non-volatile memory is enabled to store a second parameter group to be used by the control algorithm.

公开(公告)号：US20230053662A1

公开(公告)日：2023-02-23

申请号：US17793868

申请日：2020-12-23

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hayata SAKAI ,  Toru TAZAWA ,  Kenta MURAKAMI ,  Yusuke NONOGAKI ,  Renya KAWAKAMI

IPC分类号： H02P25/064 ,  H02P6/00 ,  H02P6/16 ,  H02P6/28

摘要： A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and first to tenth amplifiers provided in one-to-one correspondence with first to tenth coils. One or more amplifiers that serve as new one or more power supply target amplifiers immediately after the switching calculate Δθ (t0), which is a position deviation at time t=t0, based on Δθ (t0)=Δθ (t0−td)+A−B, where A is a difference between an instructed position at time t=t0 and an instructed position at time t=t0−td, and B is a difference between an actual position at time t=t0 and an actual position at time t=t0−td, and supply power to the power supply target coils by the position deviation Aθ (t0).