公开(公告)号：US20250166431A1

公开(公告)日：2025-05-22

申请号：US18840108

申请日：2022-08-08

Applicant: HITACHI ASTEMO, LTD.

Inventor： Kota IDEGUCHI ,  Shinya SASA ,  Takashi YAMAGUCHI ,  Yasuhiro FUJII ,  Nobuyoshi MORITA

IPC: G07C5/08 ,  G06F21/56

Abstract: An object of the present invention is to provide a diagnostic server that can easily diagnose whether an abnormality occurring in a vehicle is a result of an attack or simply a malfunction. A diagnostic server 1 of the present invention includes a log acquisition unit 13 that acquires a history of a first log indicating whether an ECU 32 in a vehicle 3 executes predetermined processing in response to a request signal that requests the ECU 32 to execute the predetermined processing, and a communication determination unit 15 that, when a non-execution log indicating that the predetermined processing is not executed is included in the history, determines validity of communication used to transmit the request signal corresponding to the non-execution log.