Provide is a power supply redundant system in which power supply systems of different voltages coexist, which allows electric power to be supplied to a load even if a ground fault or short circuit occurs therein. The system includes a DCDC converter, a first side of the DCDC convertor being connected to a first battery having a first voltage, a first switch provided between a second battery having a second voltage different from the first voltage and a second side of the DCDC converter, a load operating with the second voltage, separately connected to the second battery and the second side of the DCDC converter, and a controller monitoring a voltage of the second battery by turning on the first switch, and when the voltage of the second battery becomes equal to or lower than a first reference value, switching off the first switch and allowing the DCDC converter to output the second voltage from the second side.


    Access

    Download


    Export, share and cite



    Title :

    Power redundancy system


    Contributors:

    Publication date :

    2021-01-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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



    POWER REDUNDANCY SYSTEM

    WATARU KAZUHISA / KAZUMI KENJI | European Patent Office | 2020

    Free access

    Power supply redundancy system

    IZAWA TAKAAKI | European Patent Office | 2024

    Free access


    Electronic power-assisted braking system with redundancy

    LIN GUOXIAN / REN BO / QIU BAOXIANG et al. | European Patent Office | 2021

    Free access

    Vehicle power supply redundancy system and method

    LU YONGFU / GENG SHI / ZHANG JUNFENG et al. | European Patent Office | 2023

    Free access