PROBLEM TO BE SOLVED: To provide a technology for writing data into a non-volatile memory in an order of high write-in priority.SOLUTION: In a vehicle data storage device which writes diagnosis data and control data of a plurality of on-vehicle apparatuses into a non-volatile memory 12, a reliability derivation part 24 derives the reliability of the on-vehicle apparatuses on the basis of the diagnosis data of a plurality of the on-vehicle apparatuses. A diagnosis data write-in part 25 sequentially writes the diagnosis data of the on-vehicle apparatus into the non-volatile memory 12 in an order of relatively-low reliability. A control data write-in part 26 sequentially writes the control data of the on-vehicle apparatus into the non-volatile memory 12 in an order of relatively-high reliability.SELECTED DRAWING: Figure 2
【課題】書込優先度の高い順にデータを不揮発性メモリに書き込むための技術を提供する。【解決手段】複数の車載機器の診断データおよび制御データを不揮発性メモリ12に書き込む車両データ保存装置において、信頼度導出部24は、複数の車載機器の診断データをもとに、各車載機器の信頼度を導出する。診断データ書込部25は、信頼度が相対的に低い車載機器の診断データから順に不揮発性メモリ12に書き込む。制御データ書込部26は、信頼度が相対的に高い車載機器の制御データから順に不揮発性メモリ12に書き込む。【選択図】図2
VEHICLE DATA STORAGE DEVICE
車両データ保存装置
2016-07-28
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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