For the first time ever, a new hybrid system using a 42-V power supply system has been developed for better fuel economy, lower emissions and urban environment. This paper introduces the system configuration, features and gives actual vehicle evaluation results.This system has a motor generator (hereinafter abbreviated as M/G) connected to the engine crankshaft via a belt, in place of the alternator on a conventional vehicle. The electronic control of the M/G has five functions, 1 restarting the stopped engine, 2 driving the vehicle when starting, 3 driving auxiliaries when the engine is stopped, 4 power generation during ordinary traveling and 5 regenerative braking on deceleration braking.By restarting the engine via a belt with motor driving control, a smooth starting without discomfort is achieved. Furthermore, using this motor to drive auxiliaries during idle increases the number of idle stop opportunities.Installing this system on a direct injection 3.0 liters engine with a 5-speed automatic transmission improves fuel economy by about 40% in the Japanese standard urban mode, when compared to the average fuel consumption of vehicles in the same class without the system.


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    Titel :

    Development of the Toyota Mild-Hybrid System (THS-M)


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Nakao, Hatsuo (Autor:in) / Itagaki, Kenji (Autor:in) / Kuramochi, Kohjiro (Autor:in) / Nakamura, Seiji (Autor:in) / Tachibana, Takeshi (Autor:in) / Teratani, Tatsuo (Autor:in) / Kamijo, Yusuke (Autor:in)

    Kongress:

    SAE 2002 World Congress & Exhibition ; 2002



    Erscheinungsdatum :

    04.03.2002




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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