The invention provides a vehicle power supply system, and aims to estimate the state of a power supply for supplying power to a function part. The vehicle power supply system includes a vehicle power supply control device that measures the internal resistance of the second low-voltage power supply and estimates whether or not the second low-voltage power supply is in a degraded state. The vehicle power supply control device is capable of executing a first estimation process in which estimation is performed by measuring the internal resistance of the second low-voltage power supply when the second low-voltage power supply is charged, and a second estimation process in which estimation is performed on the basis of the discharge power from the second low-voltage power supply, and the internal resistance of the second low-voltage power supply is measured by measuring the internal resistance of the second low-voltage power supply when the second low-voltage power supply is charged. When the high-voltage power supply unit of the vehicle power supply system is in an ON state, power is supplied from the high-voltage power supply unit to the first power supply system, and the state of the vehicle satisfies a predetermined condition, a second estimation process is executed.

    本发明提供车辆电源系统,目的在于估计对功能部供给电力的电源的状态。车辆电源系统具有车辆电源控制装置,车辆电源控制装置测定第2低压电源的内部电阻来估计是否处于劣化状态。车辆电源控制装置能够执行第1估计处理和第2估计处理,在该第1估计处理中,通过测定对第2低压电源充电时的第2低压电源的内部电阻来进行估计,在该第2估计处理中,基于来自第2低压电源的放电电力进行估计,在车辆电源系统的高压电源部是接通状态、且是从高压电源部对第1电源系统供给电力的状态、并且车辆的状态满足规定条件的情况下,执行第2估计处理。


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    Titel :

    Vehicle power supply system


    Weitere Titelangaben:

    车辆电源系统


    Beteiligte:
    DENO HIRONORI (Autor:in) / UKAI HAYATO (Autor:in) / MATSUO YUHEI (Autor:in) / IKEDA TAIYA (Autor:in) / TOYOOKA KAZUKI (Autor:in)

    Erscheinungsdatum :

    2024-03-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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