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:
Mar. 11, 2025
Filed:
Mar. 08, 2018
Valeo Schalter Und Sensoren Gmbh, Bietigheim-Bissingen, DE;
Fabian Haag, Bietigheim-Bissingen, DE;
VALEO SCHALTER UND SENSOREN GMBH, Bietigheim-Bissingen, DE;
Abstract
The invention relates to a method for determining a functional status of an ultrasonic sensor () of an ultrasonic sensor device () for a motor vehicle (), which is designed to emit an ultrasonic signal () into an environment () of the motor vehicle () and/or to receive an echo signal () of the ultrasonic signal (), wherein an electrical test signal (P) is generated, which is applied to the ultrasonic sensor (), wherein at least one electrical characteristic parameter (K) of the ultrasonic sensor () affected by the electrical test signal (P) is evaluated and as a function thereof a transfer function () of the ultrasonic sensor () is determined, which is compared with a reference transfer function () and the functional state of the ultrasonic sensor () is determined depending on the comparison.