PROBLEM TO BE SOLVED: To accurately determine not only a failure of current detection means but also erroneous assembling of the current detection means in an abnormality determination device of a vehicular power supply circuit.SOLUTION: Abnormality determination means 11 of an abnormality determination device 10 performs abnormality determination that current detection means 6 fails when a voltage value recognized through the current detection means 6 is deviated from a specified range. When the voltage value recognized through the current detection means 6 is within the specific range, whether or not switching means 7 fails is determined. When it is determined that the switching means 7 does not fail, abnormality determination that the current detection means 6 is erroneously assembled is performed when a difference between a current value detected by the current detection means 6 and a total sum of current values detected by the switching means 7 is a prescribed value or more.SELECTED DRAWING: Figure 2
【課題】車両用電源回路の異常判定装置において、電流検出手段の故障だけでなく、電流検出手段の誤組み付けを正確に判定することにある。【解決手段】異常判定装置10の異常判定手段11は、電流検出手段6を通して認識した電圧値が規定範囲を外れたときに電流検出手段6が故障である異常判定を行い、電流検出手段6を通して認識した電圧値が規定範囲内であるときには切替手段7が故障か否かの判定を行い、切替手段7が故障でないことを判定した場合に、電流検出手段6で検出された電流値と切替手段7で検出された電流値の総和との差が所定値以上であるときに電流検出手段6が誤組み付けである異常判定を行う。【選択図】図2
ABNORMALITY DETERMINATION DEVICE OF VEHICULAR POWER SUPPLY CIRCUIT
車両用電源回路の異常判定装置
2017-11-16
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
VEHICULAR ABNORMALITY DETECTION DEVICE AND VEHICULAR ABNORMALITY DETECTION METHOD
European Patent Office | 2021
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