The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2026
Filed:
May. 23, 2022
Hilti Aktiengesellschaft, Schaan, LI;
Torsten Engler, Herrsching, DE;
Michael Herzig, Landsberg, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
Electric drive unit with a brushless DC motor and with a switching bridge for sensor-controlled commutation of the DC motor by at least one Hall sensor included in the DC motor, the Hall sensor being connected to the switching bridge and set up to detect an angle of rotation of the DC motor, and the drive unit also having a control unit, which is connected to the switching bridge and by which a setpoint speed for the DC motor can be specified, the control unit being set up to process Hall interrupts that are dependent on the angle of rotation and are caused by the at least one Hall sensor, and to determine an actual speed of the DC motor on the basis of time interrupts that are independent of the angle of rotation and the Hall interrupts that are dependent on the angle of rotation.