Vehicle cyber attack protection using voltage measurements

ChangeBridge: Patent Grants - Networking (H04L)

Published March 31st, 2026

Detected March 31st, 2026

Summary

The USPTO granted patent US12592937B2 to Marelli Europe S.p.A. for a method and device protecting vehicle communication networks from cyber attacks through voltage measurement analysis. The patent covers detecting malicious nodes by analyzing voltage distributions and cumulative deviations at receiving nodes to identify anomalous network behavior.

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What changed

USPTO granted patent US12592937B2 on March 31, 2026, to Marelli Europe S.p.A. covering a method for protecting vehicle communication networks from cyber attacks. The patent describes acquiring voltage measurements at receiving nodes, calculating distribution statistics, determining cumulative voltage deviations, and comparing characteristic parameters against historical samples to detect and identify malicious transmitting nodes.

Patent holders should review licensing opportunities. Technology companies and automotive manufacturers developing in-vehicle networking systems may find this IP relevant to their product development strategies. No compliance deadlines or regulatory obligations are associated with this patent grant announcement.

Source document (simplified)

← USPTO Patent Grants

Method for protection from cyber attacks to a vehicle, and corresponding device

Grant US12592937B2 Kind: B2 Mar 31, 2026

Assignee

Marelli Europe S.p.A.

Inventors

Christian Rosadini, Anastasia Cornelio, Simona Chiarelli, Walter Nesci, Sergio Saponara, Emma De Pinto

Abstract

A method for protecting against cyber attacks in a communication network of a vehicle, including the steps of acquiring dominant voltage measurements; obtaining an electrical characteristic of nodes that transmit messages by acquiring consecutive groups of voltage measurements at receiving nodes and calculating a distribution thereof; calculating values of distribution statistics; calculating a cumulative voltage deviation for each value of statistic; and obtaining a voltage profile by adding the cumulative voltage deviations of each statistic, executing a malicious-node detection procedure and then executing a transmitting-node identification procedure including comparing the at least one characteristic parameter against all the corresponding characteristic parameters of all the messages, defining a range of variation of the characteristic parameter with respect to a given number of previous samples; and evaluating whether the value of the parameter falls within the range of variation of one of the messages and identifying as malicious the node that transmits the message.