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    Motor control for gas engine replacement device
    12.
    发明授权
    Motor control for gas engine replacement device 有权

    公开(公告)号：US12170381B2

    公开(公告)日：2024-12-17

    申请号：US17346660

    申请日：2021-06-14

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Alexander T. Huber ,  My Uyen Nguyen

    IPC: H01M50/244 ,  F02B63/02 ,  H01M50/247 ,  H02J7/00 ,  H02P6/06

    Abstract: Gas-engine replacement devices described herein include a housing that includes battery receptacle configured to removably receive a battery pack, a motor located 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 selectively provide power from the battery pack to the motor, and an electronic processor. The electronic processor is coupled to the power switching network and configured to receive a current measurement associated with the motor and control the power switching network according to one of a freewheeling mode or a synchronous rectification mode based on the current measurement.

    MOTOR CONTROL FOR GAS ENGINE REPLACEMENT DEVICE
    14.
    发明申请
    MOTOR CONTROL FOR GAS ENGINE REPLACEMENT DEVICE 有权

    公开(公告)号：US20210399378A1

    公开(公告)日：2021-12-23

    申请号：US17346660

    申请日：2021-06-14

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Alexander T. Huber ,  My Uyen Nguyen

    IPC: H01M50/244 ,  H01M50/247 ,  H02J7/00

    Abstract: Gas-engine replacement devices described herein include a housing that includes battery receptacle configured to removably receive a battery pack, a motor located 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 selectively provide power from the battery pack to the motor, and an electronic processor. The electronic processor is coupled to the power switching network and configured to receive a current measurement associated with the motor and control the power switching network according to one of a freewheeling mode or a synchronous rectification mode based on the current measurement.

    Power tool including conduction angle control
    16.
    发明授权
    Power tool including conduction angle control 有权

    公开(公告)号：US12267035B2

    公开(公告)日：2025-04-01

    申请号：US18623402

    申请日：2024-04-01

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Shuvam Gupta ,  Gerry M. Nagel ,  Alexander T. Huber

    IPC: H02P6/182 ,  H02K7/14 ,  H02K11/33

    Abstract: Systems and methods described herein provide for controlling a conduction angle applied to a motor, such as a power tool motor. Operations for controlling the conduction angle includes receiving by a motor controller, a desired speed signal, and monitoring a speed of the power tool motor. The operation further includes a motor controller determining an error value between the desired speed signal and the monitored speed and determining a conduction angle signal based on the error value. The operation also includes the motor controller determining whether the conduction angle signal is greater than the error value and increasing a conduction angle of the power tool motor in response to the conduction angle signal being determined to be greater than the error value.

    POWER TOOL INCLUDING A MACHINE LEARNING BLOCK FOR CONTROLLING FIELD WEAKENING OF A PERMANENT MAGNET MOTOR
    17.
    发明申请
    POWER TOOL INCLUDING A MACHINE LEARNING BLOCK FOR CONTROLLING FIELD WEAKENING OF A PERMANENT MAGNET MOTOR 有权

    公开(公告)号：US20240399523A1

    公开(公告)日：2024-12-05

    申请号：US18738561

    申请日：2024-06-10

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Jonathan E. Abbott ,  Alexander T. Huber

    IPC: B23Q15/12 ,  G05B13/02

    Abstract: Power tools described herein include a housing, a motor supported by the housing, a battery pack configured to provide electrical power to the power tool, a user input configured to provide an input signal corresponding to a target speed of the motor, a plurality of sensors supported by the housing and configured to generate sensor data indicative of an operational parameter of the power tool, and an electronic controller. The electronic controller includes an electronic processor and a memory. The memory includes a machine learning control program for execution by the electronic processor. The electronic controller is configured to receive the target speed, receive the sensor data, process the sensor data using the machine learning control program, generate, using the machine learning control program, an output based on the sensor data, the output including one or more field weakening parameters, and control the motor based on the generated output.

    POWER TOOL INCLUDING CURRENT-BASED FIELD WEAKENING
    18.
    发明公开
    POWER TOOL INCLUDING CURRENT-BASED FIELD WEAKENING 审中-公开

    公开(公告)号：US20240048085A1

    公开(公告)日：2024-02-08

    申请号：US18356026

    申请日：2023-07-20

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Austin Gaspar ,  Gerald M. Nagel ,  Shuvam Gupta ,  Alexander T. Huber

    IPC: H02P29/40 ,  H02P7/29 ,  B25F5/02

    CPC classification number: H02P29/40 ,  H02P7/29 ,  B25F5/02

    Abstract: A power tool that includes a brushless motor, a power switching circuit, a current sensor, and an electronic controller. The power switching circuit provides a supply of power to the brushless motor. The current sensor is configured to sense a current of the brushless motor. The electronic controller is configured to receive a first signal indicative of current of the brushless motor, generate a current command, set a conduction angle of the brushless motor based on the current command, supply a PWM signal having a duty cycle to the brushless motor to increase current of the brushless motor, determine whether duty cycle equals a first threshold, maintain the duty cycle at the first threshold, modify the conduction angle to increase the current of the brushless DC motor, determine whether current equals a second threshold, and control the second conduction angle to maintain current at the second threshold.

    POWER TOOL INCLUDING CONDUCTION ANGLE CONTROL
    19.
    发明申请
    POWER TOOL INCLUDING CONDUCTION ANGLE CONTROL 有权

    公开(公告)号：US20220345057A1

    公开(公告)日：2022-10-27

    申请号：US17727315

    申请日：2022-04-22

    Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

    Inventor： Shuvam Gupta ,  Gerry M. Nagel ,  Alexander T. Huber

    IPC: H02P6/182 ,  H02K7/14 ,  H02K11/33

    Abstract: Systems and methods described herein provide for controlling a conduction angle applied to a motor, such as a power tool motor. Operations for controlling the conduction angle includes receiving by a motor controller, a desired speed signal, and monitoring a speed of the power tool motor. The operation further includes a motor controller determining an error value between the desired speed signal and the monitored speed and determining a conduction angle signal based on the error value. The operation also includes the motor controller determining whether the conduction angle signal is greater than the error value and increasing a conduction angle of the power tool motor in response to the conduction angle signal being determined to be greater than the error value.

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