Accession Number : ADA606968


Title :   Direct Fuel Injector Power Drive System Optimization


Descriptive Note : Journal article


Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE


Personal Author(s) : Zhang, Xiaohua ; Palazzolo, Alan ; Kweon, Chol-Bum ; Thomas, Erwin ; Tucker, Randall ; Kascak, Albert


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a606968.pdf


Report Date : 01 Apr 2014


Pagination or Media Count : 24


Abstract : The objective of this study is to optimize the injector power drive system for improved fuel injection quantity and timing control. The power drive system was optimized for improved injection repeatability under different operating conditions such as fuel supply pressures. A coupled simulation of injector electromagnetic, pintle (needle) rigid body motion and computational fluid dynamics (CFD) model was employed to generate the optimal values of the 1st stage current, the 1st stage on-time and the 2nd stage current. The simulation results were validated against the experimental data measured with a photo detector measurement system.


Descriptors :   *FUEL INJECTORS , CONTROL SYSTEMS , INTERNAL COMBUSTION ENGINES , OPTIMIZATION


Subject Categories : Operations Research
      Reciprocating and Rotating Engines


Distribution Statement : APPROVED FOR PUBLIC RELEASE