公开(公告)号：US12046982B2

公开(公告)日：2024-07-23

申请号：US17475981

申请日：2021-09-15

申请人： Upwing Energy, Inc.

发明人： Patrick McMullen

IPC分类号： H02K7/09 ,  E21B4/00 ,  E21B4/02 ,  E21B4/04 ,  E21B17/02 ,  E21B41/00 ,  E21B43/12 ,  E21B47/008 ,  E21B47/01 ,  E21B47/06 ,  E21B47/09 ,  E21B47/12 ,  F04B17/03 ,  F04B47/04 ,  F04D13/02 ,  F04D13/06 ,  F04D13/08 ,  F04D13/10 ,  F04D25/06 ,  F04D29/041 ,  F04D29/048 ,  F04D29/051 ,  F16C32/04 ,  F16C37/00 ,  H02H7/00 ,  H02K1/2796 ,  H02K3/42 ,  H02K5/132 ,  H02K7/14 ,  H02K7/18 ,  H02K11/21 ,  H02K11/225 ,  H02K11/27 ,  H02K11/30 ,  H02K21/14 ,  H02P29/40 ,  E21B33/12 ,  E21B43/16 ,  E21B47/07 ,  F16F15/03 ,  H02K1/2793 ,  H02K5/128 ,  H02K15/03

CPC分类号： H02K7/09 ,  E21B4/003 ,  E21B4/02 ,  E21B4/04 ,  E21B17/028 ,  E21B41/0085 ,  E21B43/121 ,  E21B47/008 ,  E21B47/01 ,  E21B47/06 ,  E21B47/09 ,  E21B47/12 ,  F04B17/03 ,  F04B47/04 ,  F04D13/026 ,  F04D13/0633 ,  F04D13/064 ,  F04D13/08 ,  F04D13/086 ,  F04D13/10 ,  F04D25/0666 ,  F04D29/041 ,  F04D29/048 ,  F04D29/051 ,  F16C32/0474 ,  F16C32/0476 ,  F16C37/005 ,  H02H7/005 ,  H02K1/2796 ,  H02K3/42 ,  H02K5/132 ,  H02K7/14 ,  H02K7/1807 ,  H02K11/21 ,  H02K11/225 ,  H02K11/27 ,  H02K11/30 ,  H02K21/14 ,  H02P29/40 ,  E21B33/12 ,  E21B43/128 ,  E21B43/168 ,  E21B47/07 ,  F16C32/044 ,  F16C2380/26 ,  F16F15/03 ,  H02K1/2793 ,  H02K5/128 ,  H02K15/03 ,  H02K2205/03

摘要： During rotation of a shaft of a downhole-type wellbore system, a first signal corresponding to an axial position of the rotating shaft is transmitted by a sensor. The shaft is axially levitated by a plurality of magnetic thrust bearings. A controller determines an amount of axial force to apply to the rotating shaft to maintain axial levitation of the rotating shaft based on the first signal. The controller transmits a second signal corresponding to the determined amount of axial force to the plurality of magnetic thrust bearings. The plurality of magnetic thrust bearings applies the amount of axial force on the rotating shaft to maintain the axial levitation of the rotating shaft based on the second signal.

公开(公告)号：US11962257B2

公开(公告)日：2024-04-16

申请号：US17897624

申请日：2022-08-29

申请人： MAKITA CORPORATION

发明人： Yuki Kawai ,  Naoya Asami

IPC分类号： H02K7/14 ,  F04D25/06 ,  H02P7/22 ,  H02P7/29 ,  H02P29/10 ,  H02P29/40

CPC分类号： H02P29/10 ,  F04D25/06 ,  H02P7/22 ,  H02P7/29 ,  H02P29/40

摘要： A blower in one aspect of the present disclosure includes: a housing including a first discharge port; a motor in the housing; a fan in the housing; an attachment fitting portion; and a motor drive circuit. The attachment fitting portion is configured to detachably attach, to the first discharge port, an attachment including a second discharge port. The motor drive circuit (i) delivers a designated power to the motor and (ii) performs a constant power control that maintains a magnitude of an electric power delivered to the motor at a magnitude of the designated power.

公开(公告)号：US11919135B2

公开(公告)日：2024-03-05

申请号：US17367927

申请日：2021-07-06

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Michael J. Panetta ,  Carter H. Ypma ,  Arik A. Miller ,  Mitchell A. Ellena

IPC分类号： B25F5/00 ,  B25F3/00 ,  H02P1/04 ,  H02P29/40

CPC分类号： B25F5/001 ,  B25F3/00 ,  H02P1/04 ,  H02P29/40

摘要： Power tools described herein include a tool output, a motor driving the tool output, a battery pack interface, a power switching network coupled between the battery pack interface and the motor, and a controller coupled to the power switching network to control operation of the motor. The controller is configured to operate the motor at a no-load speed at startup and detect a load state of the power tool. The load state indicates whether the power tool is in a loaded state or an unloaded state. The controller is also configured to incrementally ramp up a speed of the motor from the no-load speed to a selected speed when the power tool is in the loaded state and incrementally ramp down the speed of the motor from the selected speed to the no-load speed when the power tool is in the unloaded state.

公开(公告)号：US11897110B2

公开(公告)日：2024-02-13

申请号：US16177612

申请日：2018-11-01

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Maxwell L. Merget ,  Jingyuan Liang ,  Michael R. Sande ,  Michael Halverson ,  Ian Duncan ,  Nicholas C. Mantych ,  Alex Huber

IPC分类号： B25F5/00 ,  H02P29/40 ,  B25F5/02 ,  B25D17/00 ,  B25B21/00 ,  B25B21/02 ,  B25D16/00

CPC分类号： B25F5/001 ,  B25B21/00 ,  B25D17/00 ,  B25F5/026 ,  H02P29/40 ,  B25B21/026 ,  B25D16/003 ,  B25D16/006 ,  B25D2216/0084 ,  B25D2250/095 ,  B25D2250/201 ,  B25D2250/221 ,  B25D2250/255 ,  B25D2250/265

摘要： A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch positioned in the housing. The non-contact speed selector switch is configured to adjust a rotational speed of the motor. The non-contact speed selector switch is separate from the trigger switch.

公开(公告)号：US11843340B2

公开(公告)日：2023-12-12

申请号：US17833411

申请日：2022-06-06

申请人： Nanjing Chervon Industry Co., Ltd.

发明人： Hongwei Wang ,  Qian Xu ,  Weipeng Chen ,  Xiangqing Fu ,  Dongrong Qiu ,  Wencheng Li

IPC分类号： H02P6/14 ,  H02P29/40 ,  H02P29/50 ,  B24B23/02

CPC分类号： H02P29/40 ,  B24B23/028 ,  H02P29/50 ,  H02P6/14 ,  Y02P70/10

摘要： A power tool includes a brushless motor including several windings, a drive circuit for driving the brushless motor, a detection device for detecting the brushless motor so as to obtain a load parameter corresponding to a load of the brushless motor, and a controller for outputting a first control signal to reduce current of the brushless motor in a first slope when the load parameter exceeds a first preset range.

公开(公告)号：US11757385B2

公开(公告)日：2023-09-12

申请号：US17386539

申请日：2021-07-28

申请人： KABUSHIKI KAISHA YASKAWA DENKI

发明人： Keita Shimamoto ,  Koji Uemura

IPC分类号： H02P6/10 ,  H02P6/17 ,  H02P29/40 ,  G01D5/245 ,  H02P23/00 ,  H02P23/04 ,  H02P23/14

CPC分类号： H02P6/10 ,  G01D5/2454 ,  H02P6/17 ,  H02P23/0004 ,  H02P23/04 ,  H02P23/14 ,  H02P29/40

摘要： A motor control system includes a motor, an encoder, and a controller including a controller transmitter configured to transmit a torque command to control the motor. The encoder includes a position detector configured to detect a rotational position of the motor, an encoder receiver configured to receive the torque command from the controller transmitter, first disturbance estimating circuitry configured to estimate a first disturbance torque based on the rotational position and the torque command, and an encoder transmitter configured to transmit the rotational position and the first disturbance torque to the controller.

公开(公告)号：US11716047B2

公开(公告)日：2023-08-01

申请号：US17352792

申请日：2021-06-21

申请人： Rockwell Automation Technologies, Inc.

发明人： Jonathan D. Hoffman ,  Brian Fast ,  Robert J. Miklosovic

IPC分类号： H02P29/024 ,  H02P29/40 ,  H02P29/10

CPC分类号： H02P29/024 ,  H02P29/10 ,  H02P29/40

摘要： A system and method for shaping the trajectory of a motion command to reduce the effects of a load on performance of a motor dynamically modifies the motion profile in real time to limit the reference signals in the motion profile to feasible commands. A load observer determines an estimated disturbance acceleration. The estimated disturbance acceleration includes the dynamics of the controlled load and is used to modify a maximum and a minimum limit for the acceleration reference. The acceleration limits are, in turn, used to determine velocity limits. The motion profile and modified acceleration and velocity limits are provided to a state filter which determines a new motion profile for use by the motor drive to control operation of a motor and to control the load connected to the motor.

公开(公告)号：US11681260B2

公开(公告)日：2023-06-20

申请号：US16562765

申请日：2019-09-06

申请人： CITIZEN WATCH CO., LTD.

发明人： Toshinari Maeda ,  Shogo Kimura

IPC分类号： G04C3/14 ,  G04G19/12 ,  G04C10/00 ,  H02P29/40 ,  H02K1/22 ,  H02N1/00

CPC分类号： G04G19/12 ,  G04C3/14 ,  G04C10/00 ,  H02K1/22 ,  H02N1/002 ,  H02P29/40

摘要： An electronic watch includes a power source, an electrostatic motor including a rotor in which a plurality of electret films are arranged in a rotational direction and a plurality of fixed electrodes arranged in the rotational direction at positions facing the rotor, a hand rotating in conjunction with the rotation of the rotor, and a motor control circuit controlling the electrostatic motor. The motor control circuit selectively executes a hand movement mode for rotating the hand and a stop mode for keeping the hand stationary. In the stop mode, the motor control circuit keeps the rotor stationary through electrostatic forces exerted on the electret films from the fixed electrodes with the polarities of the fixed electrodes maintained.

公开(公告)号：US20230184020A1

公开(公告)日：2023-06-15

申请号：US17987107

申请日：2022-11-15

申请人： MAGNA CLOSURES INC

发明人： John G. Zeabari ,  Sebastian Prengel ,  Martin Dannemann ,  Roman Paerschke

IPC分类号： E05F15/622 ,  H02K7/116 ,  H02K11/27 ,  H02P29/40

CPC分类号： E05F15/622 ,  H02K7/1166 ,  H02K11/27 ,  H02P29/40 ,  E05Y2201/434 ,  E05Y2201/686 ,  E05Y2201/702 ,  E05Y2400/31 ,  E05Y2400/40 ,  E05Y2400/44 ,  E05Y2900/531

摘要： An actuator assembly of an actuation system for a closure member of a vehicle is provided. The actuator assembly includes an actuator housing including a sensor housing. The actuator assembly also includes an electric motor disposed in the actuator housing and configured to rotate a driven shaft operably coupled to an extensible member that is coupled to one of a body or the closure member for opening or closing the closure member. The actuator assembly also includes an actuator controller disposed in the sensor housing of the actuator housing and coupled to electric motor and an accelerometer configured to sense movement of the closure member. The actuator controller is configured to detect the movement of the closure member using the accelerometer. The actuator controller then controls the opening or closing of the closure member based on the movement of the closure member using the electric motor.

公开(公告)号：US11652437B2

公开(公告)日：2023-05-16

申请号：US16025491

申请日：2018-07-02

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Samuel Sheeks ,  Jeffrey M. Brozek ,  Keith Boulanger ,  Andrew T. Beyerl ,  Timothy R. Obermann ,  Alex Huber ,  Samantha L. Billetdeaux ,  Lance D. Lamont ,  Matthew J. Mergener

IPC分类号： H02P29/40 ,  H01M10/48 ,  H01M10/42 ,  H02P6/26 ,  H01M50/296 ,  H01M50/204

CPC分类号： H02P29/40 ,  H01M10/425 ,  H01M10/4207 ,  H01M10/482 ,  H01M50/296 ,  H02P6/26 ,  H01M50/204 ,  H01M2010/4271

摘要： An electrical combination, a tool system, an electric motor, a battery pack, and operating and manufacturing methods. The tool may include a tool housing, a motor supported by the tool housing, the motor having a nominal outer diameter of up to about 80 millimeters (mm), the motor being operable to output at least about 2760 watts (W), and a tool terminal electrically connected to the motor; a battery pack including a pack housing defining a volume of the battery pack, the volume being up to about 5.2×106 cubic millimeters (mm3), battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 80 volts (V), and a pack terminal electrically connectable to the tool terminal to transfer current between the battery pack and the tool; and a controller operable to control the transfer of current.