PROBLEM TO BE SOLVED: To provide a device and method for measuring insulation resistance of battery powered systems.SOLUTION: A device comprises: a first reference resistor (R01) connectable in series between a positive high-voltage bus (1) and a low-voltage ground connection (5); a second reference resistor (R02) connectable in series between a negative high-voltage bus (2) and the low-voltage ground connection (5); a first measurement resistor (Rbottom) connected to the low-voltage ground connection (5); a second measurement resistor (Rtop1) connectable in series between the positive high-voltage bus (1) and the first measurement resistor (Rbottom); and a third measurement resistor (Rtop2) connectable in series between the negative high-voltage bus (2) and the first measurement resistor (Rbottom). Insulation resistances (Riso_pos, Riso_neg) are calculated based on voltage measurements at the first measurement resistor (Rbottom), and a mean value of four high-voltage battery voltage measurements.SELECTED DRAWING: Figure 1

    【課題】バッテリ駆動システムの絶縁抵抗を測定するための装置及び方法に関する。【解決手段】正の高電圧バス1と低電圧接地接続部5との間に直列に接続可能な第1基準抵抗R01と、負の高電圧バス2と低電圧接地接続部5との間に直列に接続可能な第2基準抵抗R02と、低電圧接地接続5に接続された第1測定抵抗Rbottomと、正の高電圧バス1と第1測定抵抗Rbottomとの間に直列に接続可能な第2測定抵抗Rtop1と、負の高電圧バス2と第1測定抵抗Rbottomとの間に直列に接続可能な第3測定抵抗(Rtop2)と、を含む。絶縁抵抗Riso_pos、Riso_negは、第1測定抵抗Rbottomでの電圧測定値と高電圧バッテリの4つの電圧測定値の平均値とに基づいて計算される。【選択図】図1


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    Title :

    DEVICE AND METHOD FOR MEASURING INSULATION RESISTANCE OF BATTERY POWERED SYSTEM


    Additional title:

    バッテリ駆動システムの絶縁抵抗を測定するための装置及び方法


    Contributors:

    Publication date :

    2018-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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