US 12,485,524 B2
Anti bind-up control for power tools
Jonathan E. Abbott, Milwaukee, WI (US); Maxwell L. Merget, Whitefish Bay, WI (US); and Carter H. Ypma, Milwaukee, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Dec. 18, 2023, as Appl. No. 18/543,543.
Application 18/543,543 is a continuation of application No. 17/502,214, filed on Oct. 15, 2021, granted, now 11,845,173.
Claims priority of provisional application 63/092,946, filed on Oct. 16, 2020.
Prior Publication US 2024/0123596 A1, Apr. 18, 2024
Int. Cl. B25F 5/00 (2006.01); B25F 5/02 (2006.01); H02K 11/00 (2016.01); H02K 11/33 (2016.01)
CPC B25F 5/001 (2013.01) [H02K 11/0094 (2013.01); H02K 11/33 (2016.01); B25F 5/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power tool comprising:
a housing;
a motor within the housing;
a battery pack configured to provide current to the motor;
a motion sensor configured to sense rotational motion of the housing; and
an electronic controller connected to the motor, the battery pack, and the motion sensor, the electronic controller configured to:
determine, based on a characteristic of the battery pack, whether to decrease power provided to the motor,
adjust, in response to determining to decrease the power provided to the motor, a rotational motion threshold used to determine a bind-up event,
receive, from the motion sensor, a first signal indicative of rotational motion of the housing,
compare a value based on the first signal to the rotational motion threshold, and
initiate, in response to the value being greater than or equal to the rotational motion threshold, a first protective operation.