PROBLEM TO BE SOLVED: To improve calculation accuracy of an EV available mileage of a vehicle.SOLUTION: A vehicle 1 has an IG-ON state in which the vehicle 1 is allowed to travel using electric power of a battery 50 and an IG-OFF state in which the vehicle 1 is not allowed to travel using the electric power of the battery 50. In the IG-OFF state, the vehicle 1 can externally be charged. An available mileage calculation system includes an SOC estimation unit 202 to estimate an SOC from an OCV according to an SOC-OCV curve, an EV available mileage calculation unit 206 to calculate an EV available mileage dEV from the SOC using the electric power of the battery 50, and a period measurement unit 306 to measure a period L1 from the IG-OFF to start of external charging and a period L2 from the end of the external charging to the IG-ON. The EV available mileage calculation unit 206, in the IG-ON, calculates an EV available mileage dEV from the SOC immediately before the IG-ON, and further corrects the EV available mileage dEV on the basis of the periods L1, L2.

    【課題】車両のEV走行可能距離の算出精度を向上させる。【解決手段】車両1は、バッテリ50の電力を用いた走行が許可されるIG−ON状態と、バッテリ50の電力を用いた走行が禁止されるIG−OFF状態とを有するとともに、IG−OFF状態では外部充電が可能に構成される。走行可能距離算出システムは、SOC−OCVカーブに従って、OCVからSOCを推定するSOC推定部202と、SOCからバッテリ50の電力を用いたEV走行可能距離dEVを算出するEV走行可能距離算出部206と、IG−OFF時から外部充電の開始時までの期間L1と、外部充電の終了時からIG−ON時までの期間L2とを測定する期間測定部306とを備える。EV走行可能距離算出部206は、IG−ON時に、IG−ON直前のSOCからEV走行可能距離dEVを算出して、さらに、期間L1,L2に基づいてEV走行可能距離dEVを補正する。【選択図】図5


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    Titel :

    AVAILABLE MILEAGE CALCULATION SYSTEM


    Weitere Titelangaben:

    走行可能距離算出システム


    Beteiligte:

    Erscheinungsdatum :

    2015-07-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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 / 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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