PROBLEM TO BE SOLVED: To efficiently charge batteries with regenerative energy that an alternator generates, without using a DC/DC converter in a hybrid automobile in which a plurality of batteries with different rating voltages are mounted.SOLUTION: In a battery 2 of which the rating voltage is 12 V and a battery 3 of which the rating voltage is 48 V, battery controllers 2a and 3a are provided together and a battery state is detected in a predetermined sampling cycle. In a charge control part 6, an SOC calculation part 6a estimates an SOC of each of the batteries based on each of battery states. Based on the estimated SOC of each of the batteries, a battery selection part 6b selects a battery subjected to regenerative charge and notifies a charge path selector 7 of a selection result. A variable voltage setting part 6c sets an output voltage corresponding to the rating voltage of the selected battery to a variable voltage alternator 1. The charge path selector 7 sets up a path for regenerative charge between the variable voltage alternator 1 and the selected battery.SELECTED DRAWING: Figure 1

    【課題】定格電圧の異なる複数の電池を搭載したハイブリッド自動車において、DC/DCコンバータを用いることなく、オルタネータが発生する回生エネルギを各電池へ効率よく充電する。【解決手段】定格電圧が12Vの電池2および48Vの電池3には、それぞれ電池コントローラ2a,3aが併設され、所定のサンプリング周期で電池状態が検知される。充電制御部6において、SOC計算部6aは各電池状態に基づいて各電池のSOCを推定する。電池選択部6bは、各電池の推定SOCに基づいて回生充電の対象電池を選択し、選択結果を充電経路セレクタ7へ通知する。可変電圧設定部6cは、選択された電池の定格電圧に応じた出力電圧を可変電圧オルタネータ1に設定する。充電経路セレクタ7は、可変電圧オルタネータ1と前記選択された電池との間に回生充電用の経路を確立する。【選択図】図1


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    Title :

    HYBRID AUTOMOBILE AND CHARGE CONTROL DEVICE THEREFOR


    Additional title:

    ハイブリッド自動車およびその充電制御装置


    Contributors:

    Publication date :

    2016-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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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