A diesel engine multi-cylinder valvetrain model including a hydraulic engine braking system was developed. The model can be used for valvetrain dynamics analysis in both engine firing and braking conditions. Moreover, it can be used to investigate engine braking performance with conjugated analysis by combining the valvetrain model with an engine thermodynamic cycle simulation model. Dynamic valve lift profiles, which are important for accurate engine performance simulations, can be simulated with the model, including valve floating prediction for each cylinder during engine braking. The valvetrain model was used in the design of a diesel engine brake system and in the analysis of engine braking performance at the sea level and different high altitude and ambient temperature conditions. Valvetrain dynamics and the impact of EGR (exhaust gas recirculation) valve leakage or opening on engine braking performance were also evaluated.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Compression-Release Engine Brake Modeling and Braking Performance Simulation


    Additional title:

    Sae Int. J. Commer. Veh


    Contributors:

    Conference:

    SAE 2012 Commercial Vehicle Engineering Congress ; 2012



    Publication date :

    2012-09-24


    Size :

    10 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Compression-Release Engine Brake Modeling and Braking Performance Simulation

    Jia, P. / Xin, Q. / Society of Automotive Engineers | British Library Conference Proceedings | 2012


    Simulation and Experimental Research on Compression Release Engine Brake Performance

    Zhang, Daming / Jia, Guohai / Gong, Jinke et al. | SAE Technical Papers | 2018


    Simulation and Experimental Research on Compression Release Engine Brake Performance

    Jia, Guohai / Zhang, Daming / Gong, Jinke et al. | British Library Conference Proceedings | 2018


    Universal brake double-brake trundle convenient to release braking

    WU ZHENQIU | European Patent Office | 2021

    Free access

    Method for increasing braking force using engine brake

    YOO BYOUNG SOO | European Patent Office | 2017

    Free access