To diagnose an auxiliary battery at the proper time.SOLUTION: A diagnostic system of an auxiliary battery comprises: an estimation part 40-1 which estimates travel of a vehicle itself to obtain an estimated travel situation; a prediction part 40-2 which predicts, on the basis of the estimated travel situation estimated by the estimation part 40-1, whether there is a situation where charge and discharge an auxiliary battery 22 can be performed suitable for diagnosis of the auxiliary battery 22; a control part 40-5 which controls a DCDC converter 20 to perform charge and discharge of the auxiliary battery through power exchange between a load 24 and the auxiliary battery at the timing of the situation where charge and discharge of the auxiliary battery 22 can be performed suitable for diagnosis of the auxiliary battery 22 predicted by the prediction part 40-2; and a diagnosis part 40-4 which performs diagnosis through detecting charge and discharge characteristic of the auxiliary battery 22 while the control part 40-5 performs charge and discharge of the auxiliary battery 22 by exchanging power between the load 24 and the auxiliary battery.SELECTED DRAWING: Figure 1

    【課題】適切なタイミングで補機電池を診断する。【解決手段】自車のこれからの走行を推定して推定走行状況を得る推定部40-1と、推定部40-1により推定された推定走行状況に基づき、補機バッテリ22の診断に適した補機バッテリ22の充放電が行われる状況があるかを予測する予測部40-2と、予測部40-2により予測された補機バッテリ22の診断に適した補機バッテリ22の充放電が行われる状況にあるタイミングで、DCDCコンバータ20を制御して、負荷24との間で電力のやり取りによる前記補機バッテリの充放電を行わせる制御部40-5と、制御部40-5により負荷24との間の電力のやりとりによる補機バッテリ22の充放電を行わせている間に前記補機バッテリ22の充放電特性を検出して診断を行う診断部40-4と、を備える。【選択図】図1


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    Titel :

    DIAGNOSTIC SYSTEM OF AUXILIARY BATTERY


    Weitere Titelangaben:

    補機バッテリの診断装置


    Beteiligte:
    KOSHII TAKAYA (Autor:in)

    Erscheinungsdatum :

    06.09.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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




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