Patent · US Active

Method, computer-readable medium, system, and vehicle comprising the system for validating a time function of a master and the clients in a network of a vehicle

US11218238B2 · kind B2 · utility

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13Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Florian Bogenberger · Poing, DE
Emily Hudoletnjak · Munich, DE
Alexander Maier · Friedrichshafen, DE
Max TURNER · Munich, DE

Key dates

Filing date	Aug 7, 2019
Grant date	Jan 4, 2022
Priority date	—
Expiry date	Apr 2, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2463/121
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for validating a time function in a network of a vehicle includes: ascertaining a receiving time of a sync message of a master; receiving a follow-up message of the master; ascertaining a receiving time of a further sync message of the master; receiving a further follow-up message of the master; determining a time function of the first client based on the receiving time of the sync message, the receiving time of the further sync message, the transmission time of the follow-up message, and the transmission time of the further follow-up message; ascertaining a synchronized transmission time of a path delay request message from the first client to the master; ascertaining a synchronized receiving time of a path delay response message from the master; receiving a path delay response follow-up message from the master by the first client; and validating a time function of the master.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.