Dynamic Modeling and Analysis of Automotive Multi-Port Electronic Fuel Delivery System

[+] Author and Article Information
W. C. Yang, J. M. Glidewell, W. E. Tobler, G. K. Chui

Ford Motor Company, Dearborn, Mich. 48121

J. Dyn. Sys., Meas., Control 113(1), 143-151 (Mar 01, 1991) (9 pages) doi:10.1115/1.2896341 History: Received March 01, 1989; Revised December 01, 1989; Online March 17, 2008


A dynamic model of a multi-port electronic fuel injection system, capable of analyzing fast fluid transients in the fuel, is presented. The model consists of distributed parameter models for fuel lines and lumped parameter models for the fuel pump, pressure regulator and injectors. Modal approximation is used to model fuel lines. An experimental test bench has been established, and comparison of simulation and experimental results shows excellent agreement in transient characteristics. Using this experimentally verified model, the effects of injector clogging and vapor in the fuel rail on pressure transients are examined. A bond graph model of the total system is presented to identify the proper formulation of each subsystem model.

Copyright © 1991 by The American Society of Mechanical Engineers
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