Constrained optimization of fuel efficiency for RCCI engines

Lu Xia, Robbert Willems, Bram de Jager, Frank Willems

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)
93 Downloads (Pure)


Fuel efficiency optimization and emission reduction have become essential parts of engine research, due to the growing demand for environmental protection. In this paper, a computationally efficient optimization method has been applied to maximize the fuel efficiency under constraints of maximum pressure rise rate and various pollutant emissions using the combination of multiple regression analysis and particle swarm optimization. This optimization method has been applied to a Reactivity Controlled Compression Ignition (RCCI) engine. First, a data-driven model has been identified, which shows good agreement with experimental data for gIMEP as well as emissions. Using this RCCI model in the proposed optimization method, the optimal operating conditions for highest gross indicated thermal efficiency are determined under various conflicting emission and safety constraints.

Original languageEnglish
Pages (from-to)648-653
Number of pages6
Issue number5
Publication statusPublished - 28 Jun 2019
Event9th IFAC International Symposium on Advances in Automotive Control, AAC 2019 - Orléans, France
Duration: 24 Jun 201927 Jun 2019
Conference number: 9


  • engine efficiency optimization
  • multiple regression
  • particle swarm optimization
  • reactivity controlled compression ignition


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