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:
May. 26, 2026
Filed:
May. 10, 2022
Valeo Schalter Und Sensoren Gmbh, Bietigheim-Bissingen, DE;
Fabian Haag, Bietigheim-Bissingen, DE;
Jose Renan Veliz Argueta, Bietigheim-Bissingen, DE;
Thomas Frintz, Bietigheim-Bissingen, DE;
Paul Bou-Saleh, Bietigheim-Bissingen, DE;
VALEO SCHALTER UND SENSOREN GMBH, Bietigheim-Bissingen, DE;
Abstract
Method for determining a function state (FZ) of an ultrasonic sensor () for a vehicle (), having the steps of: a) applying (S) an electrical test signal (P) to the ultrasonic sensor (); b) detecting (S) an electrical response signal (A) from the ultrasonic sensor (); c) determining (S) a phase-frequency response (PF) comprising the phase angle (α) of the detected response signal (A) for the applied test signal (P) on the basis of an excitation frequency (f) of the applied test signal (P); d) comparing (S) at least a first phase angle (P) below and a second phase angle (P) above a resonant frequency (R) in the determined phase-frequency response (PF) with a respective expected phase angle (PE, PE); e) correcting (S) the determined phase-frequency response (PF) on the basis of the comparison; and f) determining (S) the function state (FZ) on the basis of the corrected phase-frequency response (PFK).