US 12,451,713 B2
Detecting mechanical stress acting upon a system
Varnim Goyal, Kaufering (DE); Bernd Ziegler, Schwabmuenchen (DE); and Roman Justus, Landsberg (DE)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 17/620,225
Filed by Hilti Aktiengesellschaft, Schaan (LI)
PCT Filed Jun. 16, 2020, PCT No. PCT/EP2020/066606
§ 371(c)(1), (2) Date Dec. 17, 2021,
PCT Pub. No. WO2020/260068, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 19182260 (EP), filed on Jun. 25, 2019.
Prior Publication US 2022/0239112 A1, Jul. 28, 2022
Int. Cl. H02J 7/00 (2006.01); G01R 31/36 (2020.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 50/583 (2021.01); H02J 7/34 (2006.01)
CPC H02J 7/007 (2013.01) [G01R 31/3644 (2013.01); H01M 10/425 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H01M 10/486 (2013.01); H01M 50/583 (2021.01); H02J 7/0029 (2013.01); H02J 7/0063 (2013.01); H02J 7/345 (2013.01); H01M 2200/103 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for controlling a handheld power tool having a battery having at least one energy storage cell, a controller, at least one sensor for detecting at least one mechanical parameter or electrical parameter, a safety device, an interface for connecting the battery to an external device as well as electrical wiring for transmitting electric energy between the at least one battery cell and the external device, the method comprising the steps of:
detecting at least one parameter via the at least one sensor so as to determine an undesired impact of the handheld power tool with a surface; and
eliminating provision of electric energy from the at least one energy storage cell via the safety device, if a detected parameter of the at least one parameter reaches a predetermined threshold value.