A working machine includes: a first electric motor used for work; a second electric motor used for applications other than work; a first inverter circuit connected to the first electric motor; a second inverter circuit connected to the second electric motor; a battery connected to the first and second inverter circuits; and a control unit that drives the first and second inverter circuits. The control unit has a discharge mode to discharg electric power stored in the battery, and discharges the battery by stopping the first inverter circuit while driving the second inverter circuit in order to make the second electric motor perform electric operation in the discharge mode. Accordingly, since the state of charge is reduced, the life of a capacitor can be increased.


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    Title :

    OPERATING MACHINE


    Additional title:

    ARBEITSMASCHINE
    MACHINE OPÉRATRICE


    Contributors:

    Publication date :

    2017-12-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / B66C Krane , CRANES / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / 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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