US 12,377,505 B2
Power tool blade type detection and automatic speed adjustment
John S. Dey, IV, Milwaukee, WI (US); and Corey J. Dickert, Brookfield, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Dec. 22, 2021, as Appl. No. 17/559,790.
Application 17/559,790 is a division of application No. 16/382,636, filed on Apr. 12, 2019, granted, now 11,207,756.
Claims priority of provisional application 62/656,448, filed on Apr. 12, 2018.
Prior Publication US 2022/0111478 A1, Apr. 14, 2022
Int. Cl. B23Q 15/12 (2006.01); B23D 45/04 (2006.01); B23D 59/00 (2006.01); B23G 1/22 (2006.01)
CPC B23Q 15/12 (2013.01) [B23D 45/044 (2013.01); B23D 59/001 (2013.01); B23G 1/225 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for controlling operation of a power tool, the method comprising:
receiving an accessory by an output driver of the power tool, the output driver coupled to a motor of the power tool, wherein the accessory is driven by the motor;
detecting, by a motor controller of the power tool, a characteristic of the accessory using an accessory-type detector that is coupled to the motor controller;
determining, by the motor controller, an operational characteristic for the accessory based on the characteristic of the accessory detected by the motor controller; and
automatically controlling, by the motor controller, operation of the motor that drives the accessory according to the operational characteristic when an operation trigger of the power tool is actuated;
wherein the accessory-type detector includes a magnetic sensor, and
wherein the accessory includes a magnet that impinges the magnetic sensor such that the magnetic sensor detects a magnetic field.