To assure a user's convenience and reliably prevent a dishonest act using a relay attack by a simple method.SOLUTION: A vehicle control system 100 comprises a portable machine 10 possessed by a user and a vehicle control device 20 installed on a vehicle. A controller 22 of the vehicle control device 20 determines whether an operation on an operation unit 21 is an operation requiring response from the portable machine 10 or not, and transmits a first signal which announces the necessity of the response from an LF transmission unit 23 if the operation requires the response, or transmits a second signal which announces the unnecessity of the response from the LF transmission unit 23 if the operation does not require the response. The controller 12 of the portable machine 10 transmits a response signal from a UHF transmission unit 14 if an LF reception unit 13 receives the first signal, or does not transmit the response signal from the UHF transmission unit 14 if the LF reception unit 13 receives the second signal. The controller 22 of the vehicle control device 20 performs control on the vehicle depending on the operation on the operation unit 21 if a UHF reception unit 24 receives the response signal.SELECTED DRAWING: Figure 1
【課題】ユーザの利便性を確保しつつ、簡便な方法によってリレーアタックによる不正行為を確実に防止する。【解決手段】車両制御システム100は、ユーザが所持する携帯機10と、車両に搭載された車両制御装置20とから構成される。車両制御装置20の制御部22は、操作部21における操作が携帯機10からの応答が必要な操作か否かを判定し、応答が必要な操作であれば、応答要を通知する第1信号をLF送信部23から送信し、応答が不要な操作であれば、応答否を通知する第2信号をLF送信部23から送信する。携帯機10の制御部12は、LF受信部13が第1信号を受信した場合は、応答信号をUHF送信部14から送信し、LF受信部13が第2信号を受信した場合は、応答信号をUHF送信部14から送信しない。車両制御装置20の制御部22は、UHF受信部24が応答信号を受信すると、車両に対して操作部21の操作に応じた制御を行う。【選択図】図1
VEHICLE CONTROL SYSTEM, VEHICLE CONTROL DEVICE AND PORTABLE MACHINE
車両制御システム、車両制御装置、携帯機
2022-12-02
Patent
Elektronische Ressource
Japanisch
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