To provide an on-vehicle communication system capable of certainly notifying an occupant of a vehicle of the fact that abnormality occurs in a system including an on-vehicle device, even if communication is impossible.SOLUTION: An on-vehicle device 2 equipped with a function of detecting the abnormality of an on-vehicle system and an interface device 3 including an LED 10 for notifying an occupant of a vehicle of an abnormal state are connected through a communication path 4 for transferring an AC signal. A cathode of the LED 10 is connected to a body earth of a vehicle, and an anode is connected to a communication line of the communication path 4 through an inductor 13. The on-vehicle device 2, when detecting the abnormality of the on-vehicle system, applies a DC driving signal to the communication line, thereby driving the LED 10 to notify of the occupant of the vehicle of abnormality.SELECTED DRAWING: Figure 1
【課題】車載用装置を含むシステムに異常が発生したことを、通信が不能な状態でも車両の乗員に確実に通知できる車載通信システムを提供する。【解決手段】車載システムの異常を検出する機能を備えた車載用装置2と、異常状態を車両の乗員に通知するLED10を含むインターフェイス装置3と、交流信号を伝送する通信路4を介して接続する。LED10のカソードを車両のボデーアースに接続し、アノードを通信路4の通信線にインダクタ13を介して接続する。車載用装置2は、車載システムの異常を検出した際に、通信線に直流の駆動信号を印可することでLED10を駆動して車両の乗員に異常を通知する。【選択図】図1
ON-VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE DEVICE, AND INTERFACE DEVICE
車載通信システム,車載用装置及びインターフェイス装置
26.10.2022
Patent
Elektronische Ressource
Japanisch
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