PROBLEM TO BE SOLVED: To control a power distribution of a motor which drives front wheels and rear wheels when starting an engine in a state where the front wheels and the rear wheels are driven by the motor, in a four-wheel drive vehicle.SOLUTION: A control device of an electric four-wheel drive vehicle comprises: an engine which drives front wheels Wf or rear wheels Wr; a first motor which can drive the front wheels; a second motor which can drive the rear wheels; a starter generator 24 which can start the engine, and can generate power; a battery; and power conversion devices 20, 22 which supply power from the battery to the first motor and the second motor. The control device also comprises: a start power calculation part 48 which calculates the start power of the engine; an uphill state detection part 50 which detects an uphill state of the vehicle; a first motor power reduction part 52 which reduces power supplied to the first motor so as to secure the start power when an engine start is requested, and the uphill state is detected in a state where the first motor and the second motor are driven; and a first engine start part 54 which starts the engine by the reduced power.SELECTED DRAWING: Figure 2

    【課題】4輪駆動車両において、前輪及び後輪をモータで駆動している状態でエンジンを始動させる時に、前輪と後輪とを駆動させるモータの電力配分を制御する。【解決手段】前輪Wf又は後輪Wrを駆動するエンジンと前輪の駆動が可能な第1モータと後輪の駆動が可能な第2モータとエンジン始動及び発電が可能なスタータジェネレータ24とバッテリと第1モータ及び第2モータにバッテリからの電力を供給する電力変換装置20,22とを備え、エンジンの始動電力を演算する始動電力演算部48と、車両の登坂状態を検出する登坂状態検出部50と、第1モータ及び第2モータが駆動の状態で、エンジン始動が要求され、登坂状態が検出された場合に、第1モータへ供給される電力を、始動電力を確保するよう低減させる第1モータ電力低減部52と、低減された電力でエンジン始動する第1エンジン始動部54とを備える。【選択図】図2


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    Titel :

    CONTROL DEVICE OF ELECTRIC FOUR-WHEEL DRIVE VEHICLE


    Weitere Titelangaben:

    電動4輪駆動車両の制御装置


    Beteiligte:
    ITO MASAKI (Autor:in) / KAMESHIMA TAKAHIRO (Autor:in)

    Erscheinungsdatum :

    07.03.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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 / F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen



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