An off-line procedure is described for obtaining optimal control calibrations for an engine during warm-up operation. Mathematical models are obtained for fuel and emission flow rates, and for important temperatures. The optimal control problem is formulated with these models, and is solved using a method of feasible directions. The resulting cold control laws are given as modifications to the warmed-up engine calibrations found by a separate procedure. The cold optimization procedures have been applied to a 5.7L fuel-injected engine equipped with an oxidizing catalyst.
Citation: Cohen, A., Randall, K., Tether, C., VanVoorhies, K. et al., "Optimal Control of Cold Automobile Engines," SAE Technical Paper 840544, 1984, https://doi.org/10.4271/840544. Download Citation
Author(s):
A. I. Cohen, K. W. Randall, C. D. Tether, K. L. VanVoorhies, J. A. Tennant
Affiliated:
Systems Control, Inc., Advanced Product and Manufacturing Engineering Staff (GMC)
Pages: 14
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
New Developments in Electronic Engine Management-SP-0572
Related Topics:
Optimization
Mathematical models
Calibration
Catalysts
Emissions
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