Hydraulic hybrid system is an important branch of hybrid technology, which has the advantage of high power density and the ability to accept the high rates/high frequencies of charging and discharging, therefore hydraulic hybrid technology is well suited for off-road vehicles and heavy-duty trucks. Relatively lower energy density and complicated coordinating operation between two power sources require a special energy control strategy to maximize the fuel saving potential. This paper presents a new configuration of parallel hydraulic hybrid vehicle (PHHV) to improve the braking energy regenerated potential and engine work efficiency. Based on the analysis of optimal energy distribution for the proposed PHHV over a representative urban driving cycle, a fuzzy torque control strategy based on the vehicle load changes is developed to real-time control the energy distribution for the proposed PHHV. Simulation results demonstrate that the proposed PHHV with torque control strategy takes advantage of the high power density and efficiency characteristics of the hydraulic hybrid system, minimizes the disadvantages of low energy density and effectively improves the fuel economy of PHHV.


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    Titel :

    Torque control strategy for a parallel hydraulic hybrid vehicle


    Weitere Titelangaben:

    Drehmomentregelungsstrategie bei einem hydraulischen Parallelhybridfahrzeug


    Beteiligte:
    Sun, Hui (Autor:in) / Jiang, Ji-hai (Autor:in) / Wang, Xin (Autor:in)

    Erschienen in:

    Journal of Terramechanics ; 46 , 6 ; 259-265


    Erscheinungsdatum :

    2009


    Format / Umfang :

    7 Seiten, 12 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Torque control strategy for a parallel hydraulic hybrid vehicle

    Hui, Sun / Ji-hai, Jiang / Xin, Wang | Elsevier | 2009


    Torque control strategy for a parallel hydraulic hybrid vehicle

    Hui,S. / Ji-haui,J. / Xin,W. et al. | Kraftfahrwesen | 2009



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