US 12,226,885 B2
Method for determining a remaining service life of a hand-held power tool as well as hand-held power tool
Sebastian Maier, Bietigheim-Bissingen (DE); and Michael Briesenick, Ehningen (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Feb. 28, 2023, as Appl. No. 18/176,165.
Claims priority of application No. 10 2022 202 681.0 (DE), filed on Mar. 18, 2022.
Prior Publication US 2023/0294263 A1, Sep. 21, 2023
Int. Cl. B23B 45/02 (2006.01); B25B 21/00 (2006.01); B25F 5/00 (2006.01)
CPC B25F 5/00 (2013.01) 16 Claims
OG exemplary drawing
 
1. A method for determining a remaining service life of a hand-held power tool, the method comprising:
detecting an operating mode, of a plurality of operating modes, of the hand-held power tool based on an alignment of operating data of the hand-held power tool with a comparative value table stored on the hand-held power tool;
calculating the remaining service life of the hand-held power tool via at least the detected operating mode and an operating time; and
outputting the remaining service life to a user of the hand-held power tool,
wherein the operating data includes electrical current values drawn by an electric motor of the hand-held power tool, acceleration values of the electric motor, and speed values of the electric motor during operation of the hand-held power tool,
wherein, for each operating mode of the plurality of operating modes, the comparative value table includes three average classes and three slope classes, and
wherein the operating data is allocated to at least one of the three average classes and three slope classes for each operating mode to detect the operating mode using the comparative value table.