PROBLEM TO BE SOLVED: To provide a technology for easily identifying whether or not the cause of the shortening of an inter-vehicle distance lies in the interruption of another vehicle.SOLUTION: Warning determination means (S120) determines whether or not an inter-vehicle distance between an own vehicle and a preceding vehicle is less than a warning threshold. Recording means (S150 to S168) records the operation state of the own vehicle including the inter-vehicle distance when it is determined that the inter-vehicle distance is less than the warning threshold. Interruption determination means (S140) determines whether or not the secular change of the inter-vehicle distance is caused by the interruption of another vehicle on the basis of a first inter-vehicle distance determined to be less than the warning threshold and a second inter-vehicle distance being the inter-vehicle distance acquired before the first inter-vehicle distance. Recording means identifiably records the operation state including the first inter-vehicle distance whose secular change is determined to be caused by the interruption and the operation state including the first inter-vehicle distance whose secular change is determined to be not caused by the interruption.
【課題】車間距離が短くなった要因が他車両の割込によるものであるか否かを容易に識別するための技術を提供する。【解決手段】警告判定手段(S120)は、自車両と先行車両との間の車間距離が警告しきい値未満であるか否かを判定する。記録手段(S150〜S168)は、車間距離が警告しきい値未満であると判定された場合に、車間距離を含む自車両の運行状況を記録する。割込判定手段(S140)は、警告しきい値未満であると判定された第1の車間距離と、第1の車間距離の前に取得された車間距離である第2の車間距離とに基づいて、車間距離の経時的変化が他車両の割り込みによるものであるか否かを判定する。記録手段は、経時的変化が割り込みによるものであると判定された第1の車間距離を含む運行状況と、経時的変化が割り込みによるものではないと判定された第1の車間距離を含む運行状況とを識別可能に記録する。【選択図】図2
OPERATION STATE RECORDING DEVICE
運行状況記録装置
02.07.2015
Patent
Elektronische Ressource
Japanisch
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