| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic key system capable of ensuring the capability to prevent a crime of fraudulently establishing ID collation.SOLUTION: An electronic key 2 includes an acceleration sensor 23 capable of detecting an oscillation occurring in a vehicle body at the time of closing a door. When detecting the closing of the door using a courtesy switch 15, a vehicle 1 initiates inside smart collation with respect to the electronic key 2. At this time, if the oscillation stemming from the closing of the door is detected, the electronic key 2 notifies the vehicle 1 of oscillation detection result information Dvb during inside smart communication. The vehicle 1 uses the oscillation detection result information Dvb as a condition for making a decision on permission of engine start. When an engine switch 22 is manipulated, the vehicle 1 starts an engine 7 under conditions that the inside smart collation should be established and an Electronic Key Oscillation Observed bit should be acquired as the oscillation detection result information Dvb. |
