Elektrowerkzeug mit Elektronischer Spindelpositionierung

Details

Veröffentlichungs-Nr.

EP4763432

Anmeldetag

25. November 2025

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

B25F5/00, H02P3/12, H02P6/24

Abstract

A method for operating a power tool includes electronically braking a motor shaft of a brushless electric motor using a controller of the power tool. A spindle unit, positioned on the motor shaft, has a known rotational position relative to at least one pole of a plurality of poles of a rotor of the motor shaft. The method further includes stopping the motor shaft, using the controller, in a predetermined rotational position relative to a stator of the electric motor based on a detected position state of a plurality of position states as detected by a plurality of position sensors of the electric motor. The plurality of position states identify a rotational position of the rotor relative to the stator, and at the predetermined rotational position, a spindle lock of the power tool is configured to engage the spindle unit without additional rotation of the motor shaft.

Anmelder

Firma

Robert Bosch GmbH

Land

🇩🇪 Deutschland