The analysis on the characteristics of each period in the starting process for common rail diesel engine was carried out. Rail pressure simulation model in the starting process was set by Matlab/Simulink. And rail pressure was tested in 4JB1 high pressure common rail diesel engine. The experimental results showed that idle rail pressure and engine speed fluctuated severely. Solution to correction of duty of metering unit(MeUn) at initial period was proposed, and effect of dragged laps on duty of MeUn was added in control strategy. The improved experimental results showed that amplitude of rail pressure fluctuation was very small and idle speed was no longer overshoot. The performance of diesel engine in the starting process has been greatly improved.


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    Title :

    The Study on Control Strategy of Rail Pressure in the Starting Process for Common Rail Diesel Engine



    Published in:

    Advanced Materials Research ; 588-589 ; 273-277


    Publication date :

    2012-11-12


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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