A power supply system includes a main power storage devices (BA) and a Plurality of sub power storage devices (BB1, BB2). A converter (12B) is connected to a selected one of the sub power storage devices (BB1, BB2) to convert voltage between the selected sub power storage devices and an electric power feeding line (PL2) bidirectionally. Connection of the sub power storage devices is switched and, when the last sub powder storage is used, a request to disconnect the sub power storage devices is generated based on the SOC of the sub power storage device and the vehicle state. Specifically, where the SOC is included in a disconnection forced region in which the SOC is smaller than a reference lower limit, the sub power storage devices is forced to be disconnected regardless of the vehicle state. Where the SOC is included in a disconnection permitted region in which the SOC is higher than that in the disconnection forced region, the disconnection request is generated on condition that the vehicles is in such a state that will not affect vehicle's drivability.


    Access

    Download


    Export, share and cite



    Title :

    POWER SUPPLY SYSTEM FOR ELECTRIC VEHICLE AND CONTROL METHOD THEREOF


    Additional title:

    STROMVERSORGUNGSSYSTEM FÜR ELEKTROFAHRZEUG UND STEUERVERFAHREN DAFÜR
    SYSTÈME D'ALIMENTATION POUR VÉHICULE ÉLECTRIQUE ET SON PROCÉDÉ DE COMMANDE


    Contributors:

    Publication date :

    2018-08-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



    Electric vehicle power supply system and control method thereof

    LI FENGKUN | European Patent Office | 2021

    Free access

    Electric vehicle power supply system and control method thereof

    JIN FENGCHENG | European Patent Office | 2020

    Free access

    POWER SUPPLY SYSTEM FOR ELECTRIC VEHICLE, AND CONTROL METHOD THEREOF

    MASUDA TOMOKAZU / KAMAGA RYUICHI | European Patent Office | 2019

    Free access

    POWER SUPPLY SYSTEM OF ELECTRIC VEHICLE AND CONTROL METHOD THEREOF

    MINEGISHI SHINICHIRO / YOSHIMI MASASHI | European Patent Office | 2017

    Free access

    Power supply system for electric vehicle and control method thereof

    JANG SUNG JIN | European Patent Office | 2017

    Free access