To improve reliability relating to an electric power shut-off operation.SOLUTION: A vehicle power shut-off system 1 includes: a shut-off unit 2 having a first power terminal 8 and a second power terminal 10 receiving power supply from an auxiliary equipment battery 14, a shut-off control part 9, and a pyrotechnic shut-off part 11 controlled by the shut-off control part 9 and capable of shutting off power supply from a vehicle propulsion driving power storage part 12 to a vehicle propulsion driving load 13; and a backup unit 3 having a power storage part 7, a first discharge circuit 5 capable of outputting the power of the power storage part 7 to the shut-off control part 9 with a first voltage, a second discharge circuit 6 capable of outputting the power of the power storage part 7 to the pyrotechnic shut-off part 11 with a second voltage having a higher value than that of the first voltage when the first discharge circuit 5 outputs the first voltage to the shut-off control part 9, and a power supply control part 4 controlling operations of the first discharge circuit 5 and the second discharge circuit 6.SELECTED DRAWING: Figure 1

    【課題】電力の遮断動作に関する信頼性を向上させる。【解決手段】車両用電力遮断システム1は、補機用バッテリー14から電力供給を受ける第1電力端8および第2電力端10と、遮断制御部9と、遮断制御部9によって制御される火工遮断部11と、を有し、車両推進駆動蓄電部12から車両推進駆動負荷13への電力供給を遮断することが可能な、遮断ユニット2と、蓄電部7と、蓄電部7の電力を遮断制御部9に第1電圧で出力することが可能な第1放電回路5と、第1放電回路5が遮断制御部9に第1電圧を出力しているときに、蓄電部7の電力を火工遮断部11へ第1電圧よりも高い値の第2電圧で出力することが可能な第2放電回路6と、第1放電回路5および第2放電回路6の動作を制御する電源制御部4と、を有するバックアップユニット3と、を含む。【選択図】図1


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    Title :

    VEHICLE POWER SHUT-OFF SYSTEM FOR VEHICLE


    Additional title:

    車両用電力遮断システム


    Contributors:

    Publication date :

    2022-01-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01H Elektrische Schalter , ELECTRIC SWITCHES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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