Fuel Consumption Minimization, with Emissions Constraints, for Diesel Powered Cars

Gareth Pease, David Limebeer, Peter Fussey

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


State-of-the-art engine models are used to study the emissions production, and fuel consumption minimization, of a typical diesel-powered road car operating on a variable-gradient road. The engine models, which have been fit to measured test cell data, are used to represent both the performance and emissions generation characteristics of a typical diesel-fuelled car engine. A simple example is used to highlight the impact of elevation changes on the main structural features of fuel optimal control problems (OCPs). A typical semiurban test route with legislated speed limits and enforced stops is used for performance evaluation purposes. The optimal functioning of a discrete-gear automatic transmission system, as opposed to a simple continuously variable transmission, is studied in detail. The main focus of this paper is to evaluate the importance of 3-D road influences (gradient and curvature), preimposed time-of-arrival constraints, enforced stops, and emissions constraints on the fuel consumption and optimal driving of typical diesel-powered road vehicles. This paper proposes the use of multiple-phase optimal control to elicit a better understanding of 'real' driving situations and motivates a move away from standardized drive cycles.

Original languageEnglish
Article number8693851
Pages (from-to)1243-1257
Number of pages15
JournalIEEE Transactions on Control Systems Technology
Issue number4
Publication statusPublished - Jul 2020


  • Engine calibration
  • nonlinear programming
  • trajectory optimization
  • vehicle propulsion

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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