To provide a diagnostic device capable of simply diagnosing an on-vehicle CAN bus communication system.SOLUTION: A diagnostic device of the present invention includes a first terminal 5a which can be connected to a CAN_H line constituting a CAN bus, a second terminal 5b which can be connected to a CAN_L line constituting the CAN bus, a third terminal 5c which can be connected to a GND line of a node connected to the CAN bus, a first light emission element 6a which is connected between the terminals 5a-5c, and emits light when the potential of the first terminal 5a is higher than the potential of the third terminal 5c, and a second light emission element 6b which is connected between the terminals 5a-5b, and emits light when the potential of the first terminal 5a is higher than the potential of the second terminal 5b.SELECTED DRAWING: Figure 3
【課題】車載のCANバス通信システムを簡易的に診断することができる診断装置を提供する。【解決手段】本発明に係る診断装置は、CANバスを構成するCAN_Hラインに接続され得る第1端子5aと、CANバスを構成するCAN_Lラインに接続され得る第2端子5bと、CANバスに接続されたノードのGNDラインに接続され得る第3端子5cと、端子5a−5c間に接続された、第1端子5aの電位が第3端子5cの電位よりも高い場合に点灯する第1発光素子6aと、端子5a−5b間に接続された、第1端子5aの電位が第2端子5bの電位よりも高い場合に点灯する第2発光素子6bと、を備えている。【選択図】図3
DIAGNOSTIC DEVICE AND DIAGNOSTIC METHOD FOR CAN BUS COMMUNICATION SYSTEM
CANバス通信システムの診断装置および診断方法
2021-05-20
Patent
Electronic Resource
Japanese
IPC: | H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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