To provide an electrical component abnormality determination device and a method thereof which can specify an electrical component in which an abnormality occurs from among the electrical components mounted on a vehicle.SOLUTION: An electrical component abnormality determination device 1 of the present invention comprises: a power current acquisition unit 11 which acquires a power current of a vehicle; a waveform decomposition unit 13 which decomposes a current waveform of the acquired power current into the current waveform for each electrical component; a storage unit 15 which stores a reference current waveform recording the current waveform when the electrical component normally operates; an electrical component specification unit 19 which specifies the electrical component in the operation state by acquiring a command signal that operates the electrical component; and an abnormality determination unit 21 which acquires the reference current waveform of the electrical component specified to be in the operation state, determines whether or not the acquired reference current waveform matches the decomposed current waveform by comparing them with each other, and determines that the electrical component has an abnormality when the reference current waveform does not match the decomposed current waveform.SELECTED DRAWING: Figure 1
【課題】車両に搭載されている電装品の中から異常が発生している電装品を特定することのできる電装品異常判定装置及びその方法を提供する。【解決手段】本発明の電装品異常判定装置1は、車両の電源電流を取得する電源電流取得部11と、取得した電源電流の電流波形を電装品毎の電流波形に分解する波形分解部13と、電装品が正常に動作しているときの電流波形を記録した基準電流波形を記憶する記憶部15と、電装品を動作させる指令信号を取得して動作状態にある電装品を特定する電装品特定部19と、動作状態にあると特定された電装品の基準電流波形を取得し、取得した基準電流波形と分解された電流波形とを比較して一致するか否かを判断し、一致しない場合には電装品が異常であると判定する異常判定部21とを備える。【選択図】図1
ELECTRICAL COMPONENT ABNORMALITY DETERMINATION DEVICE AND ELECTRICAL COMPONENT ABNORMALITY DETERMINATION METHOD
電装品異常判定装置及び電装品異常判定方法
2022-07-06
Patent
Electronic Resource
Japanese
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