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. 04, 2025
Filed:
Sep. 02, 2022
Marelli Europe S.p.a., Corbetta, IT;
Christian Rosadini, Corbetta, IT;
Simona Chiarelli, Corbetta, IT;
Walter Nesci, Corbetta, IT;
Sergio Saponara, Pisa, IT;
Alessio Gagliardi, Catanzaro, IT;
Pierpaolo Dini, SanFrediano a Settimo Cascina Pisa, IT;
Marelli Europe S.p.A., Corbetta, IT;
Abstract
A method for protection from cyber attacks in a CAN (Controller Area Network), of a vehicle including the steps of selecting periodic messages having a transmission periodicity, grouping the periodic messages, and performing an analysis of messages of the nodes that exchange the received periodic messages, which includes obtaining times of arrival at the respective nodes of a set of periodic messages that have the same message identifier, computing average-offset values over successive subsets, of a given number of messages, accumulating the average-offset values for each identifier to obtain accumulated-offset values, identifying linear parameters by computing an angular coefficient, of a regression, and an intercept, or identification error, computing a correlation coefficient of the average offset of pairs of messages identified as coming from the same node, determining whether the correlation coefficient is higher than a first given threshold, determining whether the angular coefficient between two consecutive messages with the same identifier is higher than a second given threshold, determining whether the intercept between two consecutive messages is higher than a third given threshold, and supplying the results of these determinations to a message-classification operation.