VEHICLE COMMUNICATION DEVICE CONNECTION DETERMINATION SYSTEM
To provide a vehicle communication device connection determination system capable of detecting easily connection of an unexpected device to an on-vehicle communication network.SOLUTION: In a CAN bus to which a first terminal resistance 41 and a second terminal resistance 42 are connected, the first...
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Main Authors | , , , |
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Format | Patent |
Language | English Japanese |
Published |
25.01.2022
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a vehicle communication device connection determination system capable of detecting easily connection of an unexpected device to an on-vehicle communication network.SOLUTION: In a CAN bus to which a first terminal resistance 41 and a second terminal resistance 42 are connected, the first terminal resistance 41 and the second terminal resistance 42 are separated from the CAN bus, and a resistance value is detected, hereby, when an unexpected electronic control apparatus 211 is connected to the CAN bus, a large difference of the resistance value exceeding an error range from the initial resistance value in the CAN bus can be detected, to thereby easily detect connection of the unexpected electronic control apparatus 211.SELECTED DRAWING: Figure 1
【課題】車載通信ネットワークに対して、想定外の装置が接続されたことを容易に検出することができる車両通信装置接続判定システムを提供する。【解決手段】第1終端抵抗41および第2終端抵抗42が接続されたCANバスにおいて、第1終端抵抗41および第2終端抵抗42をCANバスから切り離して抵抗値を検出することにより、CANバスに対して想定外の電子制御機器211が接続された際に、CANバスの当初の抵抗値から誤差範囲を超えた大きな抵抗値の差を検出ことができ、想定外の電子制御機器211が接続されたことを容易に検出することができる。【選択図】図1 |
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Bibliography: | Application Number: JP20200119842 |