PROBLEM TO BE SOLVED: To prevent illegal unlocking of a vehicle door and to improve security.SOLUTION: Storage parts 103, 204 of a portable machine 10 and an on-vehicle machine 20 store a signal pattern list in which a plurality of signal patterns used for generation and reception of an operation signal are consolidated. A pattern determination part 219 for the on-vehicle machine 20 performs determination of a signal pattern of the operation signal, and in the case where the determination is established, it performs collation of a portable machine side counter code and an on-vehicle machine side counter code of the operation signal. In the case where the collation is established, the pattern determination part 219 locks or unlocks the door of a vehicle, and an update part 203 updates the on-vehicle side counter code. In passive communication between the portable machine 10 and the on-vehicle machine 20, pattern determination parts 107, 218 change a signal pattern used for generation and reception of the operation signal.SELECTED DRAWING: Figure 5

    【課題】車両のドアの不正解錠を防止し、セキュリティを向上させる。【解決手段】携帯機10と車載機20の記憶部103、204は、操作信号の生成および受信に用いる複数の信号パターンをまとめた信号パターンリストを記憶する。車載機20のパターン判定部219は、操作信号の信号パターンの判定を行い、判定が成立した場合に操作信号の携帯機側カウンタコードと車載機側カウンタコードの照合を行う。照合が成立した場合、パターン判定部219は車両のドアを施錠または解錠させ、更新部203が車載機側カウンタコードを更新する。携帯機10と車載機20間のパッシブ通信において、パターン決定部107、218は、操作信号の生成および受信に用いる信号パターンを変更する。【選択図】図5


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    Title :

    KEYLESS ENTRY SYSTEM FOR VEHICLE


    Additional title:

    車両用キーレスエントリーシステム


    Contributors:
    MORI YUKI (author) / SAITO SHINJI (author) / SAKUTA YOSHINORI (author) / ISHIDA KIICHIROU (author) / ABE HIDEKI (author)

    Publication date :

    2018-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E05B LOCKS , Schlösser / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04Q Wähltechnik , SELECTING




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