System and method for setting communication availability of electronic key

Abstract

A system for setting communication availability of an electronic key for transmitters in a communication subject of the electronic key. The electronic key (2) receives a normal signal (rq) from one of the transmitters (7;7a;7b) of the communication subject (1) of the electronic key and returns an ID code. A dummy signal transmission unit (34) of the communication subject (1) generates a dummy signal (Sdm) synchronized with the normal signal (rq) and transmits the dummy signal (Sdm) from a transmitter (7b) that does not transmit the normal signal. A signal output unit (36) of the electronic key (2) receives a combined signal (Sx) of the normal and dummy signals and outputs a characteristic signal (Sk) that varies according to the level of the combined signal (Sx). A location determination unit (39) of the electronic key (2) determines the transmitter located near the electronic key from a conforming value corresponding to a variation in the characteristic signal.

Description

technical field [0001] The present invention relates to an electronic key system that communicates between an electronic key and a vehicle, and more specifically relates to an electronic key communication permission setting system that enables or disables wireless communication between the two, and Communication availability setting method. Background technique [0002] Conventionally, as a vehicle key system, an electronic key system has been widely used due to advantages such as convenience. In the electronic key system, the electronic key as the car key transmits the ID code as the key code to the vehicle through wireless, and the ID verification is performed by the vehicle. In this type of electronic key system, there is a keyless operation system in which the electronic key responds to a request from the vehicle, automatically transmits an ID code into the vehicle, and then causes the vehicle to undergo ID verification. Examples of the keyless operating system include...

AI Technical Summary

Problems solved by technology

Therefore, for example, when the user and the electronic key are located on the same side of the car door, even if the electronic key receives a normal signal, it may not be able to correctly identify the normal signal.

That is to say, when using the previous method, there will be dumb spots around the vehicle, where the electronic key and the vehicle cannot communicate.

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