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    Motor braking using selectively connectable resistance
    2.
    发明授权
    Motor braking using selectively connectable resistance 有权

    公开(公告)号：US11909345B2

    公开(公告)日：2024-02-20

    申请号：US17549048

    申请日：2021-12-13

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Timothy R. Obermann ,  Alexander Huber

    IPC: H02P3/12 ,  H02P3/14 ,  H02P27/08 ,  B25F5/00

    CPC classification number: H02P3/12 ,  B25F5/00 ,  H02P3/14 ,  H02P27/08

    Abstract: Apparatus and method for motor braking using selectively connectable resistance. The method includes controlling, using a motor controller of the power tool, a power switching network to drive a motor of the power tool in response to actuation of a user input and determining, using the motor controller, a variable tool characteristic. The method further includes determining, using the motor controller, that the user input is de-actuated. The method also includes controlling, using the motor controller, the power switching network to brake the motor when the variable tool characteristic satisfies the tool characteristic threshold and controlling, using the motor controller, a braking circuit to brake the motor when the variable tool characteristic does not satisfy the tool characteristic threshold. The braking circuit includes one or more resistive loads and is selectively coupled to the motor terminals of the motor.

    MOTOR CONTROL FOR GAS ENGINE REPLACEMENT DEVICE
    4.
    发明申请
    MOTOR CONTROL FOR GAS ENGINE REPLACEMENT DEVICE 有权

    公开(公告)号：US20240372190A1

    公开(公告)日：2024-11-07

    申请号：US18774376

    申请日：2024-07-16

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Timothy R. Obermann ,  David W. Siegler ,  Alexander Huber ,  William F. Chapman, III ,  Patrick D. Gallagher ,  Timothy J. Bartlett

    IPC: H01M50/20 ,  H02P6/06

    Abstract: A gas engine replacement device includes a housing, a battery receptacle coupled to the housing to receive a battery pack, a motor within the housing, a power take-off shaft receiving torque from the motor and protruding from a side of the housing, a power switching network configured to provide power from the battery pack to the motor, and an electronic processor coupled to the power switching network and configured to control the power switching network to rotate the motor and to receive a command speed, determine whether the command speed is in an exclusion zone, set an output speed at the command speed responsive to the command speed being outside the exclusion zone, set the output speed to a speed outside the exclusion zone responsive to the command speed being in the exclusion zone, and control the power switching network to rotate the motor in accordance with the output speed.

    Motor control for gas engine replacement device
    5.
    发明授权
    Motor control for gas engine replacement device 有权

    公开(公告)号：US12074333B2

    公开(公告)日：2024-08-27

    申请号：US17091908

    申请日：2020-11-06

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Timothy R. Obermann ,  David W. Siegler ,  Alexander Huber ,  William F. Chapman, III ,  Patrick D. Gallagher ,  Timothy J. Bartlett

    IPC: H02P21/00 ,  H01M50/20 ,  H02P6/06

    CPC classification number: H01M50/20 ,  H02P6/06

    Abstract: A gas engine replacement device includes a housing, a battery receptacle coupled to the housing to receive a battery pack, a motor within the housing, a power take-off shaft receiving torque from the motor and protruding from a side of the housing, a power switching network configured to provide power from the battery pack to the motor, and an electronic processor coupled to the power switching network and configured to control the power switching network to rotate the motor and to receive a command speed, determine whether the command speed is in an exclusion zone, set an output speed at the command speed responsive to the command speed being outside the exclusion zone, set the output speed to a speed outside the exclusion zone responsive to the command speed being in the exclusion zone, and control the power switching network to rotate the motor in accordance with the output speed.

    MOTOR BRAKING USING SELECTIVELY CONNECTABLE RESISTANCE
    6.
    发明公开
    MOTOR BRAKING USING SELECTIVELY CONNECTABLE RESISTANCE 审中-公开

    公开(公告)号：US20240186919A1

    公开(公告)日：2024-06-06

    申请号：US18440369

    申请日：2024-02-13

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Timothy R. Obermann ,  Alexander Huber

    IPC: H02P3/12 ,  B25F5/00 ,  H02P3/14 ,  H02P27/08

    CPC classification number: H02P3/12 ,  B25F5/00 ,  H02P3/14 ,  H02P27/08

    Abstract: Apparatus and method for motor braking using selectively connectable resistance. The method includes controlling, using a motor controller of the power tool, a power switching network to drive a motor of the power tool in response to actuation of a user input and determining, using the motor controller, a variable tool characteristic. The method further includes determining, using the motor controller, that the user input is de-actuated. The method also includes controlling, using the motor controller, the power switching network to brake the motor when the variable tool characteristic satisfies the tool characteristic threshold and controlling, using the motor controller, a braking circuit to brake the motor when the variable tool characteristic does not satisfy the tool characteristic threshold. The braking circuit includes one or more resistive loads and is selectively coupled to the motor terminals of the motor.

    Power tool with combined chip for wireless communications and power tool control
    9.
    发明授权
    Power tool with combined chip for wireless communications and power tool control 有权

    公开(公告)号：US11571803B2

    公开(公告)日：2023-02-07

    申请号：US16879245

    申请日：2020-05-20

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Anthony Davis ,  Alexander Huber ,  Timothy R. Obermann

    IPC: B25F5/02 ,  G01D5/14 ,  H04M1/72412 ,  H04M1/72415 ,  B25B21/02 ,  B25D16/00

    Abstract: Power tool devices described herein include a motor, an actuator configured to be actuated by a user, a plurality of power switching elements configured to drive the motor, a gate driver coupled to the plurality of power switching elements and configured to control the plurality of power switching elements, a first printed circuit board (PCB), an antenna, and a combined chip. The combined chip is located on the first PCB and is coupled to the actuator, the antenna, and the gate driver. The combined chip includes a memory and an electronic processor configured to determine that the actuator has been actuated, and provide, in response to determining that the actuator has been actuated, a signal to the gate driver, control the signal based on the motor position information, wirelessly transmit power tool device information to an external device, and wirelessly receive configuration information from the external device via the antenna.

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