ON-VEHICLE CONTROL DEVICE, GATEWAY DEVICE, AND ON-VEHICLE NETWORK SYSTEM

PROBLEM TO BE SOLVED: To store a log necessary for fault analysis of an on-vehicle control device without increasing storage capacity of the on-vehicle control device.SOLUTION: In an on-vehicle network system having on-vehicle control devices 102 through 107 communicating with one another via a netw...

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1. Verfasser: SENDA SHUICHIRO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To store a log necessary for fault analysis of an on-vehicle control device without increasing storage capacity of the on-vehicle control device.SOLUTION: In an on-vehicle network system having on-vehicle control devices 102 through 107 communicating with one another via a network and a gateway device 101, at normal time, the on-vehicle control devices 102 through 107 temporarily store a device input-output log and an internal state log, and the gateway device 101 temporarily stores a communication log. On the other hand, when abnormality is detected, the on-vehicle control device 102 through 107 select the device input-output log and the internal state log on the basis of a data rate of the log, a surplus network band and the priority of the log and transmit them to the gateway device 101, and the gateway device 101 stores the device input-output log, the internal state log and the communication log.SELECTED DRAWING: Figure 1 【課題】車載制御装置の記憶容量を増やすことなく、車載制御装置の障害解析に必要なログを記憶する。【解決手段】ネットワークを介して相互に通信する車載制御装置102〜107とゲートウェイ装置101とを有する車載ネットワークシステムにおいて、通常時は、車載制御装置102〜107がデバイス入出力ログと内部状態ログを一時記憶し、ゲートウェイ装置101が通信ログを一時記憶し、一方、異常検出時には、車載制御装置102〜107が、ログのデータレートと余剰ネットワーク帯域とログの優先度とに基づいてデバイス入出力ログと内部状態ログを選択してゲートウェイ装置101に送信し、ゲートウェイ装置101がデバイス入出力ログと内部状態ログと通信ログを蓄積する。【選択図】図1