Modeling and control of a two stroke HCCI engine

Subbotin, M.V.; Knierim, Karl Lukas; Park, Sungbae; Kojić, Aleksandar; Ahmed, Jasim

doi:10.1109/acc.2008.4586574

Cited by 7 publications

(6 citation statements)

References 17 publications

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“…For the correction after switching to the 4-stroke mode we choose to vary the EVC and the intake valve opening (IVO) simultaneously in opposite direction as they effectively control EGR this way and influence the IMEP and MFB50. For the detailed explanation of influence of valve timings on gas exchange processes in the 2-stroke and the 4-stroke HCCI engine we refer the reader to [5], [13], [14], [15]. With the defined system inputs and outputs we are ready to formulate identification problem.…”

Section: Mode-specific Controller Enginementioning

confidence: 99%

“…We assume that in each of the two modes the engine is controlled by the mode-specific controller and introduce the correction module which helps the controllers during switching. For illustrative purposes we assumed that the engine was controlled in the 2-stroke mode by the controller presented in [15] and designed a similar PI controller with a feedforward mapping for the 4-stroke mode. We tuned the 4-stroke controller to ensure that it provides good reference tracking of the IMEP and the combustion phasing signals.…”

Section: Problem Motivationmentioning

confidence: 99%

“…To study behavior of an engine switching between the 2-stroke and the 4-stroke HCCI modes we use a nonlinear model developed in [15]. The model contains 19 states describing the evolution of temperatures and concentrations of chemical species in three volumes -intake volume, cylinder, and exhaust volume.…”

Section: Problem Motivationmentioning

confidence: 99%

“…Control inputs used to track desired reference signals in the two modes are different due to the differences in the gas exchange processes for the 2-stoke and the 4-stroke modes [1], [4], [5], [14], [15]. It is natural to assume that for each of the two modes we design and tune a mode-specific controller which regulates operation of the engine.…”

Section: Introductionmentioning

confidence: 99%

“…We design the proposed control system and develop the method using a 19-th order nonlinear model of the HCCI engine [15] which can switch between the 2-stroke and the 4-stroke modes. We assume that the switching between the two modes is controlled by a logic which triggers the engine to switch from one mode to another depending on the desired engine output.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Smooth switching between 2-stroke and 4-stroke modes of HCCI operation

Subbotin

Park

Kojić

et al. 2009

2009 American Control Conference

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Switching between 2-stroke and 4-stroke modes of Homogeneous Charge Compression Ignition (HCCI) operation is a promising method for extending load range of HCCI engine. Switching between the two modes introduces disturbances into the system resulting in significant tracking errors. We propose an architecture for control system and a method for calculation of control inputs which minimize the tracking errors during switching. Proposed method produces inputs for engine valve timings which insure smooth transitions between the two HCCI modes under a varying engine load. The method uses techniques from the theory of system identification and the theory of optimal control.

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Section: Mode-specific Controller Enginementioning

confidence: 99%

Section: Problem Motivationmentioning

confidence: 99%

Section: Problem Motivationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Smooth switching between 2-stroke and 4-stroke modes of HCCI operation

Subbotin

Park

Kojić

et al. 2009

2009 American Control Conference

Self Cite

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Adaptive control of homogeneous charge compression ignition engines

Chiang

Chou

Lin

2013

Adaptive Control & Signal

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This paper presents an adaptive controller, which maintains consistent ignition timing control of a gasoline homogeneous charge compression ignition engine with high dilution in the presence of uncertainty or unknown variation in plant parameters such as exhaust runner wall temperature and cylinder charge properties. The control of the combustion timing is based on manipulating the charge temperature through internal dilution, which is achieved by controlling the lift of a secondary opening of the exhaust valves, also known as the rebreathing lift. The adaptive controller is designed on the basis of a simplified bilinear parametric model, which contains only the cycle-to-cycle combustion timing dynamics. Implementation of the designed adaptive controller involves feedforward of the injected fuel and feedback of the combustion timings CA 50 and CA 90 when 50% and 90% of energy are released, respectively, which alleviates the impact of inevitable errors in estimation of in-cylinder charge properties such as temperature, pressure, and compositions. It is shown through convergence analysis and closed-loop simulation of a full-order engine model that the adaptive controller is able to drive the combustion timing CA 50 to desired set points by stabilizing the bilinear dynamics when plant parameters are changing.

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Research on Gasoline Homogenous Charge Compression Ignition (HCCI) Engine

Cofaru

2016

CONAT 2016 International Congress of Automotive and Transport Engineering

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Modeling and control of a two stroke HCCI engine

Cited by 7 publications

References 17 publications

Smooth switching between 2-stroke and 4-stroke modes of HCCI operation

Smooth switching between 2-stroke and 4-stroke modes of HCCI operation

Adaptive control of homogeneous charge compression ignition engines

Research on Gasoline Homogenous Charge Compression Ignition (HCCI) Engine

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