Systems and methods for configuring a reciprocating saw

Patent metadata

Field	Value
Publication number	US-12440907-B2
Application number	US-202217820746-A
Country	US
Kind code	B2
Filing date	Aug 18, 2022
Priority date	Feb 3, 2016
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

Systems and methods for configuring a power tool. One system includes a power tool communication system that includes an external device and a power tool. The external device includes a user interface configured to receive a first selection to enable a feature of a power tool, and receive a second selection of a threshold of a motor characteristic of the power tool. The power tool includes a motor within a housing. The power tool receives the selected feature and the selected threshold from the external device. The power tool includes a sensor configured to monitor the motor characteristic of the motor. The power tool further includes an electronic processor that controls the motor to operate according to the selected feature and adjusts an operating parameter of the motor when the motor characteristic is determined to cross the selected threshold.

First claim

We claim:

1. A method of controlling operation of a power saw including a saw blade, the method comprising:
receiving, with a wireless communication controller of the power saw and from an external device, a selected first speed, a selected second speed, a selected characteristic to be monitored to cause a speed change of a motor of the power saw during operation of the motor, and a selected threshold, wherein each of the selected first speed, the selected second speed, the selected characteristic to be monitored, and the selected threshold was selected via a user input on the external device, the power saw including:
a housing,
the motor within the housing, wherein the motor includes a rotor and a stator,
a transmission coupled between the motor and a spindle, wherein the transmission converts rotational motion of the motor to motion of the spindle, and
the saw blade coupled to the spindle;

controlling, with an electronic processor of the power saw, the motor of the power saw to operate in a first stage of operation based on the selected first speed in response to determining that a trigger of the power saw has been actuated;
determining, with the electronic processor and based on information received from a sensor of the power saw that is configured to monitor the selected characteristic to be monitored, whether the selected characteristic to be monitored has reached the selected threshold; and
controlling, with the electronic processor, the motor to operate in a second stage of operation based on the selected second speed in response to determining that the selected characteristic to be monitored has reached the selected threshold.

2. The method of claim 1 , wherein:
controlling the motor to operate in the first stage of operation includes:
controlling, with the electronic processor, a speed of the motor to vary based on an amount of actuation of the trigger during the first stage of operation,
controlling, with the electronic processor, a maximum speed of the motor during the first stage of operation to be the selected first speed; and

controlling the motor to operate in the second stage of operation includes:
controlling, with the electronic processor, the speed of the motor to vary based on the amount of actuation of the trigger during the second stage of operation, and
controlling, with the electronic processor, the maximum speed of the motor during the second stage of operation to be the selected second speed.

3. The method of claim 1 , wherein:
controlling the motor to operate in the first stage of operation includes controlling, with the electronic processor, the motor to operate at the selected first speed during the first stage of operation; and
controlling the motor to operate in the second stage of operation includes controlling, with the electronic processor, the motor to operate at the selected second speed during the second stage of operation.

4. The method of claim 3 , further comprising:
receiving, with the wireless communication controller and from the external device, a selected ramp up period that controls a rate at which a motor speed is changed from the selected first speed to the selected second speed, wherein the selected ramp up period was selected via a second user input on the external device; and
controlling, with the electronic processor, the motor speed to change from the selected first speed to the selected second speed according to the selected ramp up period.

5. The method of claim 1 , wherein the selected second speed is higher than the selected first speed.

6. The method of claim 1 , wherein the selected characteristic to be monitored includes an amount of time elapsed since the motor has been started and the sensor includes a timer that monitors the amount of time elapsed since the motor has been started.

7. The method of claim 1 , wherein the selected characteristic to be monitored includes a motor current and the sensor includes a current sensor that monitors the motor current.

8. A power saw including a saw blade, the power saw comprising:
a housing;
a motor within the housing, wherein the motor includes a rotor and a stator;
a transmission coupled between the motor and a spindle, wherein the transmission converts rotational motion of the motor to motion of the spindle;
the saw blade coupled to the spindle;
a wireless communication controller configured to receive, from an external device, a selected first speed, a selected second speed, a selected characteristic to be monitored to cause a speed change of the motor during operation of the motor, and a selected threshold, wherein each of the selected first speed, the selected second speed, the selected characteristic to be monitored, and the selected threshold was selected via a user input on the external device;
a sensor configured to monitor the selected characteristic to be monitored; and
an electronic processor coupled to the sensor and to the wireless communication controller, wherein the electronic processor is configured to:
control the motor to operate in a first stage of operation based on the selected first speed in response to determining that a trigger of the power saw has been depressed,
determine whether the selected characteristic to be monitored has crossed the selected threshold, and
control the motor to operate in a second stage of operation based on the selected second speed in response to determining that the selected characteristic to be monitored has crossed the selected threshold.

9. The power saw of claim 8 , wherein the electronic processor is configured to:
control a speed of the motor to vary based on an amount of actuation of the trigger during the first stage of operation;
control a maximum speed of the motor during the first stage of operation to be the selected first speed;
control the speed of the motor to vary based on the amount of actuation of the trigger during the second stage of operation; and
control the maximum speed of the motor during the second stage of operation to be the selected second speed.

10. The power saw of claim 8 , wherein the electronic processor is configured to:
control the motor to operate at the selected first speed during the first stage of operation,
control the motor to operate at the selected second speed during the second stage of operation.

11. The power saw of claim 10 , wherein:
the wireless communication controller is configured to receive, from the external device, a selected ramp up period that controls a rate at which a motor speed is changed from the selected first speed to the selected second speed, wherein the selected ramp up period was selected via a second user input on the external device; and
the electronic processor is configured to change the motor speed from the selected first speed to the selected second speed according to the selected ramp up period.

12. The power saw of claim 8 , wherein the selected second speed is higher than the selected first speed.

13. The power saw of claim 8 , wherein the selected characteristic to be monitored includes an amount of time elapsed since the motor has been started and the sensor includes a timer that monitors the amount of time elapsed since the motor has been started.

14. The power saw of claim 8 , wherein the selected characteristic to be monitored includes a motor current and the sensor includes a current sensor that monitors the motor current.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Dey Iv John Stanley
• Mergener Matthew J

Classifications

• B25F5/00

  Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for · CPC title

• G08C17/02

  using a radio link · CPC title

• B27B33/141

  with means to control the depth of cut · CPC title

• B27B17/08

  Drives or gearings; Devices for swivelling or tilting the chain saw · CPC title

• B27B17/0016 Primary

  Devices to adapt the chain saw for other purposes, e.g. drilling · CPC title