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:
Nov. 23, 2021
Filed:
Feb. 20, 2017
Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh, Munich, DE;
Markus Eissner, Eschenbach, DE;
KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH, Munich, DE;
Abstract
A method for measuring a coil property, modeled as a parallel-circuit including a capacitance with a series-circuit including a DC-voltage and frequency-dependent resistance, and an inductance and current-voltage converter series connected, by: applying an AC-voltage, having a first-frequency and a DC-voltage component, to the coil and a voltage at the current-voltage converter is captured at a second-frequency, and the impedance and phase-angle at the first-frequency are derived from n-measured values; and applying an AC-voltage, having a third-frequency differing from the first and having a DC-voltage component, to the coil and voltage at the current-voltage converter is captured at the second or fourth-frequencies, in which the impedance and phase-angle at the third-frequency are derived from m-measured values for the DC-voltage resistance.