VEHICLE SMART KEY STORAGE CASE

• Main Author: IIDA MAMORU
• Format: Patent
• Language: English; Japanese
• Published: 08.07.2021
• Subjects: ACCESSORIES THEREFOR; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FIXED CONSTRUCTIONS; HANDCUFFS; KEYS; LOCKS; PERFORMING OPERATIONS; SAFES; TRANSMISSION; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; WINDOW OR DOOR FITTINGS

To prevent theft of a vehicle by relay attack without improving an in-vehicle device and a smart key used in a keyless entry system.SOLUTION: A smart key storage case includes a storage case body that can shield a signal, a transmission path 46 that radiates a call signal from a vehicle-mounted device into the storage case body, switches 48 and 50 that conduct/cut off the transmission path 46, a wireless communication unit 70 that performs data communication with a wireless communication terminal 80, a control unit 60 that controls the switches 48 and 50, and a response signal relay unit that radiates a response signal from a smart key 20 inside the storage case body to the outside. The control unit controls the switch such that the call signal transmitted from the vehicle-mounted device to the inside of the vehicle is blocked and the call signal transmitted to the outside of the vehicle is transmitted when the wireless communication terminal is outside the vehicle.SELECTED DRAWING: Figure 3 【課題】キーレスエントリシステムにて使用されている車載機やスマートキーを改良することなく、リレーアタックによる車両の盗難を防止できるようにする。【解決手段】スマートキー収納ケースは、信号を遮蔽可能な収納ケース本体と、車載機からの呼び出し信号を収納ケース本体内に放射させる伝送経路４６と、伝送経路４６を導通・遮断させるスイッチ４８，５０と、無線通信端末８０との間でデータ通信を行う無線通信部７０と、スイッチ４８，５０を制御する制御部６０と、収納ケース本体内部のスマートキー２０からの応答信号を外部に放射させる応答信号中継部とを備える。制御部は、無線通信端末が車両外部に存在するとき、車載機から車室内に送信された呼び出し信号が遮断され、車両外部に送信された呼び出し信号が伝送されるように、スイッチを制御する。【選択図】図３