Automotive Powertrain Modeling for Control

[+] Author and Article Information
D. Cho

Princeton University, Princeton, NJ 08544

J. K. Hedrick

University of California, Berkeley, CA 94720

J. Dyn. Sys., Meas., Control 111(4), 568-576 (Dec 01, 1989) (9 pages) doi:10.1115/1.3153093 History: Received May 02, 1988; Online July 21, 2009


A dynamic model of an automotive powertrain system is developed by the use of eight states and two time-delays in the continuous-time domain, with careful attention given to the dynamics and kinematics of a four-stroke spark-ignition engine, an automatic transmission, and rubber tires. The model is relatively simple, yet it predicts the important dynamics (including those during a shift) quite well when compared to experimental data. The model is well suited for developing powertrain controllers and can also be used for studying the dynamic behavior of a powertrain system. A great deal of effort was directed toward preserving the generic nature of modeling so that the developed techniques can be easily adapted to different vehicles with a minimum amount of bench tests for obtaining parameters.

Copyright © 1989 by ASME
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