Feed-forward control of purge flow in internal combustion engines

Presented is a feed-forward controller that coordinates engine fueling with a purge event to reduce air–fuel ratio excursions. The controller employs a linear parameter-varying model to estimate the necessary changes in fuel pulse-width based on a hydrocarbon sensor located in the purge line. Synchronization between the purge fuel vapor arrival at the intake manifold and the fueling command is realized using a transport delay model. The proposed controller is experimentally validated on a Ford 5.4-L port injected engine and a 3.6-L EcoBoost engine. Significant reductions in air–fuel ratio excursions are achieved during the steady-state engine operating conditions associated with highway conditions.

• Record URL:
  • https://doi.org/10.1177/1468087414565401
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680874
• Supplemental Notes:
  • © IMechE 2015.
• Authors:
  • Zamanian, Fatemeh
  • Franchek, Matthew A
  • Grigoriadis, Karolos M
  • Makki, Imad
• Publication Date: 2016-2

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 221-234
• Serial:
  • International Journal of Engine Research
  • Volume: 17
  • Issue Number: 2
  • Publisher: Sage Publications, Incorporated
  • ISSN: 1468-0874
  • EISSN: 20413149

Subject/Index Terms

• TRT Terms: Electronic controllers; Emission control devices; Evaporative emissions; Feedforward control; Fuel air mixtures; Fuel injection; Internal combustion engines
• Uncontrolled Terms: Air fuel ratio; Purging
• Subject Areas: Energy; Environment; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01717383
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 18 2019 5:16PM