VEHICLE CONTROL SYSTEM, VEHICLE CONTROL METHOD AND VEHICLE CONTROL DEVICE

• Main Authors: SERIZAWA HAJIME, ENOMOTO YOSHINARI
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

To immediately avoid DoS attacks without depending on the load status of ECU and the increase in communication traffic due to DoS attacks.SOLUTION: A vehicle control system includes a vehicle control device having a processor and a memory, an out-of-vehicle communication device, and a gateway device for relaying communication between the vehicle control device and the out-of-vehicle communication device. The vehicle control device includes a first network that connects the out-of-vehicle communication device, the gateway device and the vehicle control device to perform communication related to vehicle control, and a second network that connects the out-of-vehicle communication device, the gateway device and the vehicle control device to perform communication related to status monitoring. The vehicle control device includes a vehicle control unit that receives information from the out-of-vehicle communication device via the first network to control the vehicle, and a status monitoring unit that monitors the load information of the vehicle control unit and performs a process to detect attacks based on unauthorized communication independently of the vehicle control unit. The vehicle control unit stores the amount of communication to be received and the load of the process performed by the vehicle control unit as load information.SELECTED DRAWING: Figure 3 【課題】ＤｏＳ攻撃による通信トラフィックの増加及びＥＣＵの負荷状況に依存せずに、ＤｏＳ攻撃を即時回避する。【解決手段】プロセッサとメモリを有する車両制御装置と、車外通信装置と、車両制御装置と前記車外通信装置の間で通信の中継を行うゲートウェイ装置と、を有し、車外通信装置とゲートウェイ装置及び車両制御装置を接続して車両制御に関する通信を行う第１のネットワークと、車外通信装置とゲートウェイ装置及び車両制御装置を接続して状態監視に関する通信を行う第２のネットワークと、を有し、車両制御装置は、第１のネットワークを介して車外通信装置から情報を受信して車両の制御を行う車両制御部と、車両制御部の負荷情報を監視して不正な通信に基づく攻撃を検出する処理を車両制御部とは独立して行う状態監視部と、を有し、車両制御部は、受信する通信量及び車両制御部で行われる処理の負荷を負荷情報として格納する。【選択図】図３