Optimal Air Path Control During Load Transients on a Spark Ignited Engine With Variable Geometry Turbine and Variable Valve Timing

Flärdh, Oscar; Ericsson, Gustav; Klingborg, Erik; Mårtensson, Jonas

doi:10.1109/tcst.2013.2245330

Cited by 10 publications

(6 citation statements)

References 15 publications

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“…In this study, it was not mentioned how the VGT is controlled; however, an open-loop strategy was provided in which the variable vanes of the compressor were open for the first 0.6 s of the transient and then were closed in second two. This control method leads to faster pressure increase such that the turbocharged pressure would be more than 0.15 bar after 2 s. Flardh [15] investigated simultaneous control of a turbocharger with the variable geometry turbine and the valves timing to reduce the turbocharger delay and achieve the fast torque response. It was desired to get a proper control strategy which provides good transient performance at different loads without affecting the engine's steady-state fuel consumption.…”

Section: Introductionmentioning

confidence: 99%

Analysis and dynamic calibration of the transient of an SI-engine equipped with turbocharger

Keshavarz

Kakaee

fajri

2018

J Braz. Soc. Mech. Sci. Eng.

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Transient is considered an important operation mode of an engine since most of its working cycles happen in this mode. In this paper, GT-Power software is used to model the engine and the turbocharger; moreover, the experimental results from the IPCO Company are used for validation and calibration. The simulation is calibrated for the engine's steady state in the part-and full-load conditions. Then, since the transient simulation cannot be performed based on the steady-state settings, the engine transient simulation is calibrated. Upon the performed simulation, the calibration differences of the transient and the steady state are investigated. These differences are analyzed during four processes of combustion, injection, heat transfer in the exhaust manifold and the turbocharger performance; then the various parameters' effect on the engine transient are studied. The considered transient is the one during which the engine load increases with the throttle opening at a constant engine speed. It is concluded that the produced maps of the combustion and injection parameters, which are achieved from the quasi-steady conditions, can properly predict these parameters' behavior. However, the turbocharger performance and the heat transfer inside the exhaust manifold must be calibrated, transiently. With this procedure for model calibration, the error between the model and the experimental results were decreased significantly. For example, in the speed of 1900 rpm, the error between the model and the experimental data for transient simulation is reduced from 1.57 to 0.18%. The studied engine is 1.65 L EF7-TC which is a spark ignition engine equipped with a turbocharger.

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Section: Introductionmentioning

confidence: 99%

Analysis and dynamic calibration of the transient of an SI-engine equipped with turbocharger

Keshavarz

Kakaee

fajri

2018

J Braz. Soc. Mech. Sci. Eng.

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“…This includes building and agricultural machinery, locomotive and ship engines and also modern power systems, like block thermal power plants or gas turbine systems and, of course, automotive systems. This may be the reason for the sustained interest in research on the control of turbochargers, see [1], [2], [3], [4], [5], [6], [7] to name but a few.…”

Section: Introductionmentioning

confidence: 99%

Robust control of the boost-pressure of a turbocharger subject to model uncertainty and disturbances

Posielek

Wulff

Reger

2017

2017 11th Asian Control Conference (ASCC)

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Controller design for the boost-pressure of an exhaust-gas turbo-charger is considered. To this end, we propose a sliding mode controller with integral action in the slidingvariable. The design is simple, requires a small number of sensors and is robust with respect to various uncertainties and disturbances. Compared to standard integral sliding-mode controllers our design approach yields a dynamics of lower order which simplifies the stability and invariance analysis.

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“…In [6] a feedback linearization approach based on differential flatness theory is proposed for the control of the air system of a turbocharged gasoline engine. Finally, in [7] a model-based approach is pursued to maximize an SI-engine's torque through optimal control of the variable valve timing (VVT) and the variable gas turbine (VGT).…”

Section: Introductionmentioning

confidence: 99%

Flatness-Based Adaptive Fuzzy Control Of Spark-Ignited Engines

Rigatos

Siano

2014

Journal of Artificial Intelligence and Soft Computing Research

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An adaptive fuzzy controller is designed for spark-ignited (SI) engines, under the constraint that the system's model is unknown. The control algorithm aims at satisfying the H ∞ tracking performance criterion, which means that the influence of the modeling errors and the external disturbances on the tracking error is attenuated to an arbitrary desirable level. After transforming the SI-engine model into the canonical form, the resulting control inputs are shown to contain nonlinear elements which depend on the system's parameters. The nonlinear terms which appear in the control inputs are approximated with the use of neuro-fuzzy networks. It is shown that a suitable learning law can be defined for the aforementioned neuro-fuzzy approximators so as to preserve the closed-loop system stability. With the use of Lyapunov stability analysis it is proven that the proposed adaptive fuzzy control scheme results in H ∞ tracking performance. The efficiency of the proposed adaptive fuzzy control scheme is checked through simulation experiments.

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Optimal Air Path Control During Load Transients on a Spark Ignited Engine With Variable Geometry Turbine and Variable Valve Timing

Cited by 10 publications

References 15 publications

Analysis and dynamic calibration of the transient of an SI-engine equipped with turbocharger

Analysis and dynamic calibration of the transient of an SI-engine equipped with turbocharger

Robust control of the boost-pressure of a turbocharger subject to model uncertainty and disturbances

Flatness-Based Adaptive Fuzzy Control Of Spark-Ignited Engines

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