PROBLEM TO BE SOLVED: To provide a communication counterpart selection system in which, by switching a keyless entry system and a TPMS at a suitable timing, a wireless communication unit mounted at a vehicle can be shared between both systems.SOLUTION: A wireless key 3 for a keyless entry system and sensor units 6 provided at wheels for a TPMS implement wireless communication with an ECU1 provided at a vehicle body. The ECU1 implements control of lock/unlock of a vehicular door through communication with the wireless key 3. The ECU1 judges wheel fitting positions through communication with the sensor units 6 and implements an alarm etc. corresponding to a detected result of air pressure. And, the ECU1 detects wheel speed by a wheel speed sensor 5 and selects a communication counterpart corresponding to the detected wheel speed. The ECU1, for example, implements wireless communication with the sensor unit 6 in a case that the wheel speed exceeds a specified speed, and implements wireless communication with the wireless key 3 in a case that the wheel speed does not exceed the specified speed.
【課題】適切なタイミングでキーレスエントリシステム及びTPMSの切り替えを行って、両システムで車両に搭載された無線通信器を共用することができる通信相手選択システムを提供する。【解決手段】キーレスエントリシステムのための無線キー3と、TPMSのための車輪に設けられたセンサユニット6とが、車体に設けられたECU1との間で無線通信を行う。ECU1は、無線キー3との通信により車両のドアのロック/アンロックの制御を行う。ECU1は、センサユニット6との通信により車輪の装着位置を判定すると共に、空気圧の検知結果に応じた警告などを行う。またECU1は、車輪速センサ5にて車輪速を検知し、検知した車輪速に応じて無線通信の相手を選択する。ECU1は、例えば車輪速が所定速度を超える場合にセンサユニット6との無線通信を行い、車輪速が所定速度を超えない場合に無線キー3との無線通信を行う。【選択図】図1
COMMUNICATION COUNTERPART SELECTION SYSTEM
通信相手選択システム
03.08.2015
Patent
Elektronische Ressource
Japanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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