公开(公告)号：US20240400354A1

公开(公告)日：2024-12-05

申请号：US18802894

申请日：2024-08-13

Applicant: Warn Industries, Inc.

Inventor： Darren G. Fretz ,  Bryan Averill ,  Clark Brumet ,  Thomas Paasch ,  Kevin Christensen

IPC: B66D1/12 ,  B66D1/28 ,  B66D1/40 ,  B66D1/48 ,  B66D3/20 ,  H02K3/04 ,  H02K5/14 ,  H02K5/22 ,  H02K7/10 ,  H02K7/116 ,  H02K7/14 ,  H02K11/00 ,  H02K11/20 ,  H02K11/21 ,  H02K11/25 ,  H02K11/26 ,  H02K11/27 ,  H02K11/30 ,  H02K11/33 ,  H02K11/35 ,  H02K11/40 ,  H02K23/66 ,  H02P29/40

Abstract: Methods and systems are provided for a winch including a motor and a contactor assembly coupled around the motor. In one example, the contactor assembly includes an outer casing with a planar, inner end wall. Additionally, the contactor assembly includes a plurality of angled inner surfaces disposed adjacent to the cylindrical housing of the motor.

公开(公告)号：US12145570B2

公开(公告)日：2024-11-19

申请号：US17634421

申请日：2020-07-07

Applicant: VITESCO TECHNOLOGIES GMBH

Inventor： Jean-Marc Baissac ,  Magali Pons

IPC: H02P6/16 ,  B60W10/08 ,  B60W10/26 ,  B60W20/13 ,  H02P23/00 ,  H02P29/40

Abstract: Disclosed is a method for managing a torque to be supplied on a shaft of an electric motor including the following steps: creating and initializing a correction data table; acquiring a torque instruction; determining a torque command; measuring the current output from the converter and measuring the current output from the battery; calculating an electrical power on the basis of the two current measurements and of the voltage; determining, on the basis of a map, a corresponding torque on the basis of the electrical power at the motor and of the rotational speed of the motor; reading the information provided by the motor relating to the torque exerted on its shaft; calculating the difference between the information provided by the motor and the torque determined on the basis of the electrical power; and updating the correction data table.

公开(公告)号：US20240380205A1

公开(公告)日：2024-11-14

申请号：US18654047

申请日：2024-05-03

Applicant: Schneider Toshiba Inverter Europe SAS

Inventor： Alexandre Credoz ,  Pascal Combes ,  Al Kassem Jebai

IPC: H02J3/12 ,  H02J3/00 ,  H02J7/00 ,  H02P27/08 ,  H02P29/40

Abstract: A control process for a control system of a load system connected to an electric grid through the control system wherein the control process is configured to provide one or more adapted drive commands to the control system dependent on the grid frequency. The control system may include an inverter, a converter, a thyristor bridge or contactors and the load may be a motor. A control device for implementing the control process also is disclosed.

公开(公告)号：US12046982B2

公开(公告)日：2024-07-23

申请号：US17475981

申请日：2021-09-15

Applicant: Upwing Energy, Inc.

Inventor： Patrick McMullen

IPC: 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 classification number: 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

Abstract: 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

Applicant: MAKITA CORPORATION

Inventor： Yuki Kawai ,  Naoya Asami

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

CPC classification number: H02P29/10 ,  F04D25/06 ,  H02P7/22 ,  H02P7/29 ,  H02P29/40

Abstract: 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

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

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

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

CPC classification number: B25F5/001 ,  B25F3/00 ,  H02P1/04 ,  H02P29/40

Abstract: 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

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

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

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

CPC classification number: 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

Abstract: 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

Applicant: Nanjing Chervon Industry Co., Ltd.

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

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

CPC classification number: H02P29/40 ,  B24B23/028 ,  H02P29/50 ,  H02P6/14 ,  Y02P70/10

Abstract: 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

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Keita Shimamoto ,  Koji Uemura

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

CPC classification number: H02P6/10 ,  G01D5/2454 ,  H02P6/17 ,  H02P23/0004 ,  H02P23/04 ,  H02P23/14 ,  H02P29/40

Abstract: 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

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Jonathan D. Hoffman ,  Brian Fast ,  Robert J. Miklosovic

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

CPC classification number: H02P29/024 ,  H02P29/10 ,  H02P29/40

Abstract: 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.