To provide a vehicular abnormality detection device and a vehicular abnormality detection method that can efficiently analyze a cause of an abnormality that occurs on an on-vehicle network.SOLUTION: In a vehicular abnormality detection device, when a transmission/reception part receives S102Y abnormality information of one control device on an on-vehicle network composed of many layers through a firewall, an abnormality cause candidate acquisition part acquires S104 candidates of another control device that is likely to be a cause of the abnormality of the one control device. When the other control device exists S108Y in which an abnormality occurs before a time when an abnormality of the one control device is detected, among the candidates acquired by the abnormality cause candidate acquisition part, an abnormality information management part manages S122 the other control device together with the one control device as an abnormality cause control device.SELECTED DRAWING: Figure 4
【課題】車載ネットワーク上で発生した異常の原因を効率良く解析することができる車両用異常検出装置及び車両用異常検出方法を提供する。【解決手段】車両用異常検出装置は、ファイアウォールを介して多数階層で構成された車載ネットワークにおいて、送受信部が一の制御装置の異常情報を受信するS102Yと、異常原因候補取得部が一の制御装置の異常の原因となり得る他の制御装置の候補を取得S104する。異常情報管理部は、異常原因候補取得部で取得された候補から、一の制御装置の異常が検出された時刻以前に異常が発生している他の制御装置があればS108Y、当該他の制御装置を一の制御装置と共に異常原因制御装置として管理するS122。【選択図】図4
VEHICULAR ABNORMALITY DETECTION DEVICE AND VEHICULAR ABNORMALITY DETECTION METHOD
車両用異常検出装置及び車両用異常検出方法
2021-11-18
Patent
Elektronische Ressource
Japanisch
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