Recently, emission regulations have been strict in many countries, and it is very difficult technical issue to reduce emissions of diesel cars.In order to reduce the emissions, various combustion technologies such as Massive EGR, PCCI, Rich combustion, etc. have been researched. The combustion technologies require precise control of the states of in-cylinder gas (air mass flow, EGR rate etc.). However, a conventional controller such as PID controller could not provide sufficient control accuracy of the states of in-cylinder gas because the air-pass system controlled by an EGR valve, a throttle valve, a variable nozzle turbo, etc. is a multi-input, multi-output (MIMO) coupled system. Model predictive control (MPC) is well known as the advanced MIMO control method for industrial process. Generally, the sampling period of industrial process is rather long so there is enough time to carry out the optimization calculation for MPC. However, due to the progress of the computer in the last decade and improvement of the optimization algorithm, the MPC can be applied to ‘fast’ process such as mechanical systems.The air-pass management system for the diesel engine is assumed a two-input, two-output system in this research. The inputs of the system are the throttle valve and the EGR valve, and the outputs air mass flow and EGR rate. Consequently, MPC was applied to air-pass management system and was modified by adding the disturbance observer to eliminate steady-state error and the compensator for nonlinear characteristics of actuators.The performance of the proposed control system was examined by using an actual testing vehicle. From the experiments, it was shown that an accurate decoupled control of two outputs, i.e. air mass flow and EGR rate, was accomplished by the proposed MPC control.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Multi-Variable Air-Path Management for a Clean Diesel Engine Using Model Predictive Control


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Ueno, Masaki (Autor:in) / Iwadare, Mitsuhiro (Autor:in) / Adachi, Shuichi (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2009


    Erschienen in:

    Erscheinungsdatum :

    20.04.2009


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Multi-variable air-path management for a clean diesel engine using model predictive control

    Iwadare,M. / Ueno,M. / Adachi,S. et al. | Kraftfahrwesen | 2009


    2009-01-0733 Multi-Variable Air-Path Management for a Clean Diesel Engine Using Model Predictive Control

    Iwadare, M. / Ueno, M. / Adachi, S. et al. | British Library Conference Proceedings | 2009


    Explicit Model Predictive Control of the Diesel Engine Fuel Path

    liu, Cunjia / Winward, Edward / Deng, Jiamei et al. | SAE Technical Papers | 2012



    Explicit Model Predictive Control of the Diesel Engine Fuel Path

    Deng, J. / Stobart, R. / liu, C. et al. | British Library Conference Proceedings | 2012