Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
700142 | Control Engineering Practice | 2009 | 7 Pages |
Abstract
Residual-affected homogeneous charge compression ignition (HCCI) is a promising methodology for simultaneously reducing emissions and fuel consumption. However, the process relies on cycle-to-cycle coupling between subsequent engine cycles through the exhaust gas temperature, resulting in sections of the state space which are unstable. This paper exploits a previously validated control model of HCCI to analytically determine the area of the state space which is stable to perturbation of either combustion timing or in-cylinder pressure. As efforts to control and expand the operating range of HCCI continue, analytical stability tools like that developed here will likely play an increasingly important role.
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Authors
Gregory M. Shaver,