ELECTRONIC KEY SYSTEM FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To prevent unjust operation performed by breaking or the like by driving a cover body to open a key insert part so as to make an electronic key insertable in an insert-operating part only after code collation is made by radio communication with the electronic key. SOLUTION: An ECU 20 on the vehicle side receives radio wave of specified wavelength from an electronic key, and in case of a received radio code coinciding with a first code stored in a memory 22, the ECU 20 controls a door lock 34 so as to release the lock of all doors. A user gets into a vehicle, and an ECU of the electronic code reads a second code in response to radio wave from a second antenna 12 and transmits the second code from the antenna. In case of the transmitted code coinciding with a second code stored in the memory 22, the ECU 20 puts a cover body in a movable state through a driving operating part 36. The user can therefore insert the electronic key in a key insert hole and perform start operation. The key insert hole can therefore be opened only after code collation is made by radio communication so as to be able to prevent breaking of mechanical key mechanism.