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:
Feb. 07, 2023
Filed:
Jun. 06, 2019
Valeo Schalter Und Sensoren Gmbh, Bietigheim-Bissingen, DE;
Fabian Haag, Bietigheim-Bissingen, DE;
Michael Hallek, Bietigheim-Bissingen, DE;
Valeo Schalter und Sensoren GmbH, Bietigheim-Bissingen, DE;
Abstract
The invention relates to a method for operating an ultrasonic sensor () of a vehicle (), in which a sound transducer element () of the ultrasonic sensor () is excited with a predetermined excitation signal, wherein the excitation signal has a predetermined current amplitude, an electrical test voltage (U) at the sound transducer element () resulting from the excitation signal is measured, and a diagnosis of the ultrasonic sensor () is carried out on the basis of the test voltage (U), wherein the ultrasonic sensor () is excited with the excitation signal in a measuring mode for the transmission of an ultrasonic signal, the electrical test voltage (U) is measured during the transmission, on the basis of the electrical test voltage (U) a reduced diagnosis is carried out, wherein the ultrasonic sensor () either continues to be operated in the measuring mode or is operated in a diagnostic mode for a complete diagnosis, depending on a result of the reduced diagnosis.