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:
Jan. 14, 2025
Filed:
Nov. 22, 2019
Valeo Siemens Eautomotive Germany Gmbh, Erlangen, DE;
Rainer Edelhauser, Nuremberg, DE;
Valeo Siemens eAutomotive Germany GmbH, Erlangen, DE;
Abstract
A monitoring circuit () for an interlock system (), said interlock system comprising a first monitoring line (), a second monitoring line (), and at least one line bridge (), by means of which the monitoring lines () are electrically conductively connected in a closed state of the interlock system (), said monitoring circuit comprising a signal generation device () which is configured for generating a monitoring signal for the first monitoring line () which alternates between a first monitoring voltage and a second monitoring voltage and which is referenced to a reference potential, and a signal evaluation device () by means of which a voltage profile (to) which is referenced to the reference potential is detectable on the second monitoring line (), wherein the signal evaluation device () is configured for determining a fault on one of the monitoring lines () which is caused by a fault voltage referenced to the reference potential, and/or a fault in the monitoring circuit () by means of a comparison of the voltage profile (to) with a predetermined first tolerance interval () around the first monitoring voltage, and with a predetermined second tolerance interval () around the second monitoring voltage.