PROBLEM TO BE SOLVED: To accurately detect deterioration of insulation resistance of an electrical system mounted to a vehicle by a comparatively simple constitution.SOLUTION: An insulation resistance deterioration detection device 600 comprises an AC power source 610, a detection section 640, a threshold setting section 650 and a determination section 660, and detects deterioration of insulation resistance of an electrical system 105 mounted to a vehicle 100. The AC power source 610 imparts an AC signal to a signal line electrically connected to the electrical system. The detection section detects a peak value of the AC signal in the signal line. The threshold setting section changes a threshold for determining insulation resistance deterioration according to electrical equipment connected to the electrical system. The determination section detects the deterioration of the insulation resistance on the basis of the peak value detected by the detection section falling below the threshold set in the threshold setting section.SELECTED DRAWING: Figure 2

    【課題】比較的シンプルな構成により、車両に搭載された電気系統の絶縁抵抗の低下を精度よく検出する。【解決手段】絶縁抵抗低下検出装置600は、交流電源610と、検出部640と、しきい値設定部650と、判定部660とを備え、車両100に搭載された電気系統105の絶縁抵抗の低下を検出する。交流電源610は、電気系統に電気的に接続される信号線に交流信号を与える。検出部は、信号線における交流信号の波高値を検出する。しきい値設定部は、電気系統に接続される電気機器に応じて、絶縁低下判定用のしきい値を変更する。判定部は、検出部によって検出された波高値が、しきい値設定部で設定されたしきい値を下回ったことに基づいて、絶縁抵抗の低下を検出する。【選択図】図2


    Access

    Download


    Export, share and cite



    Title :

    INSULATION RESISTANCE DETERIORATION DETECTION DEVICE


    Additional title:

    絶縁抵抗低下検出装置


    Contributors:

    Publication date :

    2016-11-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



    DETERIORATION DETECTION DEVICE AND DETERIORATION DETECTION METHOD

    KAWANAKA SHOTA / TAMURA SHO / MIYAKUBO GO | European Patent Office | 2017

    Free access

    INSULATION RESISTANCE DETECTION DEVICE

    KOUDA MASAKAZU / KUBOKAWA RYOTA / SHINDO YUSUKE et al. | European Patent Office | 2021

    Free access

    Insulation resistance detection device

    KOUDA MASAKAZU / KUBOKAWA RYOTA / SHINDO YUSUKE et al. | European Patent Office | 2024

    Free access


    INSULATION RESISTANCE DETECTION DEVICE

    KOUDA MASAKAZU / KUBOKAWA RYOTA / SHINDO YUSUKE et al. | European Patent Office | 2021

    Free access