publication . Doctoral thesis . 2007

HCCI engine control and optimization

Killingsworth, Nicholas J.;
Open Access
  • Published: 01 Jan 2007
  • Publisher: eScholarship, University of California
  • Country: United States
Abstract
Homogeneous charge compression ignition (HCCI) engines have the benefit of high efficiency with low emissions of nitrogen oxides and particulates. These benefits are due to the autoignition process of the dilute mixture of fuel and air during compression. However, because there is no direct ignition trigger, control of ignition is inherently more difficult than in standard internal combustion engines. This difficulty necessitates that a feedback controller be used to keep the engine at a desired (efficient) setpoint in the face of disturbances. Because of the nonlinear autoignition process, the sensitivity of ignition changes with the operating point. Thus, gain...
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eScholarship - University of California
Doctoral thesis . 2007
Provider: eScholarship - University of California
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