公开(公告)号：US11218238B2

公开(公告)日：2022-01-04

申请号：US16533991

申请日：2019-08-07

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Florian Bogenberger ,  Emily Hudoletnjak ,  Alexander Maier ,  Max Turner

IPC: H04J3/06 ,  G06F1/12 ,  G06F1/14 ,  H04L12/751 ,  H04L12/727

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.