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:
Jun. 14, 2022
Filed:
May. 15, 2019
Method for authenticating a diagnostic trouble code generated by a motor vehicle system of a vehicle
Continental Teves Ag & Co. Ohg, Frankfurt am Main, DE;
Scott F. Ross, Steinbach, DE;
Michael Gerhard Schneider, Eschborn, DE;
Abstract
A method for authenticating at least one diagnostic trouble code (DTC) generated by a motor vehicle system of a vehicle. The method generates a DTC by a fault detection algorithm, stores the DTC in a volatile fault memory, generates an identity marker denoting the fault detection algorithm at the time of generation of the DTC, stores the identity marker in NVM, stores the DTC in the NVM when an ignition-off request signal is present, loads the DTC from the NVM into the volatile memory when an ignition-on request signal is present, and authenticates the DTC by the authentication data record by, initially by determining the fault detection algorithm by which the fault event was detected, subsequently this fault detection algorithm being compared with the fault detection algorithm indicated by the identity marker, and an absence of concordance resulting in a manipulation of the DTC being indicated.