COMPUTER-AIDED PROCEDURES FOR OPTIMIZATION OF ENGINE CONTROLS

A systematic procedure has been developed for establishing optimum engine performance, in terms of fuel economy and exhaust emissions constraints, as a function of spark advance, exhaust gas recirculation, and air-to-fuel ratio. The salient features of the procedure are: (a) it is based on mathematical engine models that have been validated over a driving cycle on an engine dynamometer, (b) it is based on solving a nonlinear programming problem with equality and inequality constraints, and (c) the results of the optimization are used to develop control calibrations that can be implemented on a vehicle. This paper describes the procedure to determine optimal calibrations for a fuel injected spark ignition engine under warmed-up operating conditions. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14775360
• Corporate Authors:

  Inderscience Enterprises Limited

  La Motte Chambers
  St Helier, Jersey,   England 
• Authors:
  • TENNANT, J A
  • Cohen, A I
  • Rao, H S
  • Powell, J D
• Publication Date: 1983-5

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 258-269
• Serial:
  • International Journal of Vehicle Design
  • Volume: 4
  • Issue Number: 3
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1477-5360
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=IJVD

Subject/Index Terms

• TRT Terms: Calibration; Control; Control devices; Digital computers; Electronic control; Electronics; Engines; Exhaust gas recirculation; Exhaust gases; Force; Fuel air mixtures; Fuel consumption; Information processing; Measuring instruments; Methodology; Motors; Nonlinear programming; Optimization; Spark ignition engines; Vehicles
• Uncontrolled Terms: Air fuel ratio; Optimum
• Old TRIS Terms: Spark advance
• ITRD Terms: 6155: Apparatus (measuring); 6171: Calibration; 3874: Control; 8673: Digital computer; 6965: Electronics; 5421: Force; 9102: Method; 1334: Motor; 1255: Vehicle
• Subject Areas: Energy; Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00378282
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: HS-035 304
• Files: HSL, ITRD, TRIS
• Created Date: Oct 30 1984 12:00AM