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公开(公告)号：US12005540B2
公开(公告)日：2024-06-11
申请号：US17732192
申请日：2022-04-28
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Jonathan E. Abbott , Alexander T. Huber
CPC classification number: B23Q15/12 , G05B13/0265
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.
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公开(公告)号：US20220120813A1
公开(公告)日：2022-04-21
申请号：US17504770
申请日：2021-10-19
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Alexander T. Huber , Timothy R. Obermann
IPC: G01R31/34 , H02P27/08 , H03K17/687
Abstract: Power tool devices described herein include a housing, a power source interface, a field effect transistor within the housing connected between the power source interface and a load of the power tool device, and an electronic processor coupled to the field effect transistor. The electronic processor is configured to control the field effect transistor to drive the load and measure a voltage at a terminal of the field effect transistor. The electronic processor is also configured to determine the current flowing through the field effect transistor based on the voltage without using a shunt resistor.
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公开(公告)号：US20240333180A1
公开(公告)日：2024-10-03
申请号：US18623402
申请日：2024-04-01
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Shuvam Gupta , Gerry M. Nagel , Alexander T. Huber
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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公开(公告)号：US20220247202A1
公开(公告)日：2022-08-04
申请号：US17586496
申请日：2022-01-27
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Nicholas C. Mantych , Alexander T. Huber
Abstract: A power tool device including a housing, first and second battery pack terminals, at least one bulk capacitor, a pre-charge circuit, and a discharge circuit. The pre-charge circuit includes at least one resistance connected in series with the at least one bulk capacitor, and a pre-charge switch connected in series with the at least one resistance. The pre-charge switch is configured to selectively provide a conductive path to charge the at least one bulk capacitor. The discharge circuit includes a first switch and a second switch connected in series with the at least one bulk capacitor. The first switch and the second switch are configured to be turned on after the at least one bulk capacitor is charged to a DC bus voltage.
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公开(公告)号：US20250010448A1
公开(公告)日：2025-01-09
申请号：US18690253
申请日：2022-09-09
Applicant: Milwaukee Electric Tool Corporation
Inventor： Anthony M. Davis , Alexander T. Huber , Melissa Groenewold , Johnny Lienau
Abstract: A system and method for or wirelessly securing a tool in a low power mode is provided. In some embodiments, a system comprises a power source interface configured to selectively receive a battery pack; an alternate power source; a controller electrically coupled to the power source interface, and electrically coupled to the alternate power source via a switch; and a communication system electrically coupled to the alternate power source and the power source interface, and operatively coupled to the switch, wherein the communication system comprises a wireless transceiver and a processor, wherein the processor is configured to: establish a wireless connection with an external device; receive a signal from the external device; and in response to the signal, cause the switch to complete a circuit between the alternate power source and the controller.
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Patent Agency Ranking
公开(公告)号：US20240385246A1
公开(公告)日：2024-11-21
申请号：US18787351
申请日：2024-07-29
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Alexander T. Huber , Timothy R. Obermann
Abstract: Power tool devices described herein include a housing, a power source interface, a field effect transistor within the housing connected between the power source interface and a load of the power tool device, and an electronic processor coupled to the field effect transistor. The electronic processor is configured to control the field effect transistor to drive the load and measure a voltage at a terminal of the field effect transistor. The electronic processor is also configured to determine the current flowing through the field effect transistor based on the voltage without using a shunt resistor.
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公开(公告)号：US11949362B2
公开(公告)日：2024-04-02
申请号：US17727315
申请日：2022-04-22
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Shuvam Gupta , Gerry M. Nagel , Alexander T. Huber
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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公开(公告)号：US20220347811A1
公开(公告)日：2022-11-03
申请号：US17732192
申请日：2022-04-28
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Jonathan E. Abbott , Alexander T. Huber
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.
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公开(公告)号：US20250118849A1
公开(公告)日：2025-04-10
申请号：US18983436
申请日：2024-12-17
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.
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公开(公告)号：US20250047170A1
公开(公告)日：2025-02-06
申请号：US18715198
申请日：2022-12-07
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Alexander T. Huber , Gerald M. Nagel , Shuvam Gupta , Robert D. Turney
Abstract: A power tool includes a motor, a switching module, a plurality of rotor position sensors, and a controller. The switching module includes a plurality of high-side switches and a plurality of low-side switches. The rotor position sensors are configured to output signals related to the position of the rotor. The controller is configured to drive the motor using a twelve-step commutation sequence. A first step includes one of the plurality of high-side switches and one of the plurality of low-side switches turned to an ON conduction state. The controller is configured to calculate an updated phase transition angle for the twelve-step commutation sequence, and drive the motor using the twelve-step commutation sequence based on the updated phase transition angle. A second step following a phase transition includes either two of the plurality of high-side switches or two of the plurality of low-side switches turned to the ON conduction state.
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