DOOR UNLOCKING SYSTEM AND DOOR UNLOCKING METHOD

摘要

An electronic key actively executes wireless communication following a keyless entry communication and passively executes wireless communication following a RFID communication. A vehicle control device is mounted on a vehicle and actively executes wireless communication following each of the keyless entry communication and RFID communication. An ECU/BCM unlocks a door by communicating with the electronic key using the keyless entry communication and issues a password to the electronic key in relation to this action. When a door knob or handle is pulled, an RFID-IC acquires the password issued by the ECU/BCM from the electronic key using the RFID communication and unlocks the door by authenticating the acquired password.

主权项

1. A door unlocking system comprising:
a portable device carried by a user, the portable device actively performing a wireless communication following a first short-range wireless communication mode and passively performing a wireless communication following a second short-range wireless communication mode; and an in-vehicle device mounted on a vehicle including a door, the in-vehicle device actively performing a wireless communication following the first short-range wireless communication mode and a wireless communication following the second short-range wireless communication mode; wherein the in-vehicle device includes a first unlocking actuator communicating in the first short-range wireless communication mode with the portable device to unlock the door and a password generator issuing a password to the portable device in association with a process of the first unlocking actuator; the portable device includes a storage storing a password issued by the password generator; and the in-vehicle device further includes a password acquirer acquiring a password stored by the storage in the second short-range wireless communication mode when a predetermined operation to the vehicle is performed, and a second unlocking actuator authenticating the password acquired by the password acquirer to unlock the door.