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:
Aug. 04, 2026
Filed:
Jan. 30, 2023
Vitesco Technologies Gmbh, Regensburg, DE;
Peter Wiese, Kelkheim, DE;
Stefan Köhler, Frankfurt, DE;
VITESCO TECHNOLOGIES GMBH, Regensburg, DE;
Abstract
An example includes: switching on and off a coil current at switch-on times and switch-off times specified by means of a clock signal; generating a PWM signal with a duty cycle representative of the inductance of the measuring coil with rising and falling PWM signal edges, triggered at the same time as the switching on or switching off of the coil current and triggered as soon as a value of the coil current reaches a specified trigger threshold, or both of which are triggered as soon as a value of the coil current reaches a specified trigger threshold; evaluating the PWM signal to determine the duty cycle and the inductance; detecting a steady-state maximum value of the coil current after switching on and before subsequently switching off the coil current; and specifying the trigger threshold depending on the detected steady-state maximum value of the coil current.