公开(公告)号：US20240342877A1

公开(公告)日：2024-10-17

申请号：US18292233

申请日：2022-07-27

Applicant: Robert Bosch GmbH

Inventor： Markus Traub ,  Achim Wurst ,  Jessica Hanselmann ,  Markus Leupert ,  Thomas Gabriel ,  Stefan Horstmann

IPC: B25B23/147 ,  B25B21/02

CPC classification number: B25B23/147 ,  B25B21/02

Abstract: A method is disclosed for controlling a hand-held power tool, in particular a cut-off screwdriver, the hand-held power tool including a drive motor and a control unit. The method includes (i) setting an operating stage for controlling the drive motor by way of the control unit, wherein the operating stage includes a direction of rotation of the drive motor, a rotational speed of the drive motor, and a cut-off criterion, (ii) setting a rotational speed constancy of the rotational speed of the drive motor, (iii) operating the drive motor depending on set operating stage and/or the set rotational speed constancy, and (iv) braking the drive motor when the cut-off criterion is met.

公开(公告)号：US12157216B2

公开(公告)日：2024-12-03

申请号：US18006307

申请日：2021-07-07

Applicant: Robert Bosch GmbH

Inventor： Markus Leupert ,  Stefan Horstmann

IPC: B25F5/00 ,  H02P3/10 ,  B25B21/00

Abstract: A power tool, in particular an electric screwdriver, includes (i) a housing; (ii) an electric motor which is located in the housing and by way of which an insert tool located in a tool holder can be rotationally driven; (iii) and a control device which is designed to control a braking process of the electric motor in response to a braking request in order to stop the rotating insert tool. The braking process includes countercurrent braking. A method for braking an electric motor of a power tool, a computer program, and a machine-readable storage medium are also disclosed.

公开(公告)号：US20230294264A1

公开(公告)日：2023-09-21

申请号：US18006307

申请日：2021-07-07

Applicant: Robert Bosch GmbH

Inventor： Markus Leupert ,  Stefan Horstmann

IPC: B25F5/00 ,  H02P3/10

CPC classification number: B25F5/001 ,  H02P3/10 ,  B25B21/00

Abstract: A power tool, in particular an electric screwdriver, includes (i) a housing; (ii) an electric motor which is located in the housing and by way of which an insert tool located in a tool holder can be rotationally driven; (iii) and a control device which is designed to control a braking process of the electric motor in response to a braking request in order to stop the rotating insert tool. The braking process includes countercurrent braking. A method for braking an electric motor of a power tool, a computer program, and a machine-readable storage medium are also disclosed.