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, Volume 80, Issue 5, pp 58–63 | Cite as

Advanced Cylinder Deactivation with Miller Cycle

  • Elliot Ortiz-Soto
  • Matthew Younkins

Dynamic Skip Fire has demonstrated a significant CO2 reduction in vehicles with conventional gasoline engines and electrified powertrains. Together with advanced engine technologies such as the Miller cycle, Dynamic Skip Fire can deliver a further synergistic fuel consumption reduction. The ability to control exhaust gas temperatures dynamically is also beneficial for aftertreatment efficiency, particularly for lean burn engines.

Dynamic Skip Fire

Dynamic Skip Fire (DSF) is a proven cylinder deactivation technology that delivers significant fuel economy improvements via reduction of pumping losses in part-load operation [1]. Proprietary control algorithms are used to dynamically fire or skip individual cylinders on a cycle-by-cycle basis. DSF operates at optimum efficiency by continuously adapting firing density to satisfy torque requirements, while simultaneously meeting production targets for Noise, Vibration and Harshness (NVH). The DSF software control strategy can be implemented...

Copyright information

© Springer Fachmedien Wiesbaden GmbH, ein Teil von Springer Nature 2019

Authors and Affiliations

  • Elliot Ortiz-Soto
    • 1
  • Matthew Younkins
    • 1
  1. 1.Tula TechnologySan JoseUSA

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