Fuel Efficiency Optimization using Rapid Transient Engine Calibration

Paper #:
  • 2014-01-2359

Published:
  • 2014-09-30
DOI:
  • 10.4271/2014-01-2359
Citation:
Atkinson, C., "Fuel Efficiency Optimization using Rapid Transient Engine Calibration," SAE Technical Paper 2014-01-2359, 2014, https://doi.org/10.4271/2014-01-2359.
Affiliated:
Pages:
12
Abstract:
Pending GHG emissions reduction legislation for medium- and heavy-duty vehicles will require the development of engines and powertrains with significantly increased mechanical and electronic complexity. Increasing powertrain efficiency will require the simulation, control and calibration of an expanding number of highly interdependent air, fuel, exhaust, combustion and energy transfer subsystems. As a result of these increases in complexity, engine and powertrain control is becoming significantly more sophisticated and costly to develop and difficult to optimize.The high cost of developing engines and powertrain systems that demonstrate greater fuel efficiency and emissions benefits than the engines of today, is undeniable. The increased calibration burden and the complexity of optimization require the development and adoption of entirely new methods for transient engine calibration and optimization to achieve maximum vehicle fuel efficiency and lowest regulated emissions.Model-based rapid transient engine calibration can be used to optimize the performance, fuel efficiency and emissions of high degree-of-freedom engines, off-line, in a timely and efficient fashion.
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