Dynamic feedback linearization of Diesel engines with intake variable valve actuation

Plianos, Alexandros; Stobart, Richard

doi:10.1109/cca.2007.4389273

Cited by 14 publications

(9 citation statements)

References 18 publications

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“…Many concepts for turbocharged air system control with EGR are presented in the literature, including constructive Lyapunov [13], sliding mode [14], fuzzy [15], and linear parameter-varying control [16], as well as feedback linearization [4], where input constraints are not taken into account P. Kotman systematically. In contrast to that, the use of classical antiwindup measures is reported in [2] and a constrained motion planning is employed in [8] to ensure the adherence to input constraints.…”

Section: Introductionmentioning

confidence: 99%

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Prioritization-based constrained trajectory planning for a nonlinear turbocharged air system with EGR

Kotman

Bitzer

Kugi

2012

2012 American Control Conference (ACC)

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The problem of generating sufficiently smooth reference trajectories for the flatness-based feedforward control of a Diesel engine air system with input constraints is addressed in this work. The proposed trajectory planning can handle arbitrary command inputs and provides the reference signals required by the flatness-based controller. Thereby, the desired tracking behavior for the controlled variables is defined by a linear target system. The input constraints are taken into account by limiting the target system dynamics to the realizable air system dynamics as determined by the flat design model and the limits of the control input. Furthermore, a prioritization of the controlled variables is included in this limitation. The differentially flat reduced-order design model used in this work is deduced from a high-order reference model by applying the singular perturbation theory. The suitability of the proposed trajectory planning in combination with the feedforward controller is shown by means of simulation studies relying on the high-order reference air system model.

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Section: Introductionmentioning

confidence: 99%

“…The control problem related to the turbocharged air system with EGR is a nonlinear multivariable control problem [2], [3], [4]. As in most real-world problems [5], [6], the available control inputs feature constraints [2], [7], [8] significantly limiting the achievable control performance in terms of tracking fast reference trajectories.…”

Section: Introductionmentioning

confidence: 99%

Prioritization-based constrained trajectory planning for a nonlinear turbocharged air system with EGR

Kotman

Bitzer

Kugi

2012

2012 American Control Conference (ACC)

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“…La técnica de control predictivo basado en modelos se utiliza en Ortner and del Re (2007) para optimizar el sistema de aire del motor con resultados presentados en forma experimental. En Plianos and Stobart (2007) y en Alfieri et al (2018) se proponen controladores basados en el enfoque clásico de linealización por realimentación dinámica de estados con diferente elección de las variables de salida.…”

Section: Introductionunclassified

Control no lineal de velocidad y aire alimentado en un motor diésel con turbocompresor y recirculación de gases de escape

Mendoza-Soto

Álvarez-Icaza

Cortes

2019

Rev. iberoam. autom. inform. ind.

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<p>Se propone un control no lineal para regular la velocidad y la alimentación de flujo de aire en un motor de combustión interna diésel con sistema de recirculación de gases de escape. El esquema de control propuesto utiliza una realimentación estática de los estados para linealizar de manera exacta al sistema motor-turbocompresor evitando la linealización por retroalimentación de estados dinámica. El esquema de control propuesto se complementa con un estimador para el par de carga del motor basado en la técnica de Inmersión e Invariancia. El análisis de estabilidad permite concluir estabilidad asintótica cuando el esquema de control utiliza el par de carga estimado. Por medio de una serie de simulaciones numéricas se evalúan las propiedades del esquema de control propuesto.</p>

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“…Simulation studies have shown the benefits by late intake valve closing (LIVC), brake-specific fuel consumption (BSFC) benefits are shown in Deng and Stobart [2009], as well as the emissions benefits in He et al [2009]. Different approaches to control intake valve actuation have been demonstrated (Plianos and Stobart [2007], Wu and Wang [2009]). In Plianos and Stobart [2007], a feedback linearization technique is used to control the air system of an engine equipped with intake variable valve actuation (VVA), exhaust gas recirculation (EGR), and variable geometry turbine (VGT).…”

Section: Introductionmentioning

confidence: 99%

“…Different approaches to control intake valve actuation have been demonstrated (Plianos and Stobart [2007], Wu and Wang [2009]). In Plianos and Stobart [2007], a feedback linearization technique is used to control the air system of an engine equipped with intake variable valve actuation (VVA), exhaust gas recirculation (EGR), and variable geometry turbine (VGT). In Wu and Wang [2009], an intake valve actuation governed by a genetic algorithm that minimizes BSFC is proposed.…”

Section: Introductionmentioning

confidence: 99%

Air-Path Model Predictive Control of a Heavy-Duty Diesel Engine with Variable Valve Actuation

Gelso

Lindberg

2014

IFAC Proceedings Volumes

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In this paper, a model-based strategy for the air-path, fuel injection timing, and fuel pressure control of a heavy-duty Diesel engine is presented. The engine system is a six-cylinder Diesel engine, equipped with a dual-stage fixed geometry turbo system and a variable valve actuation (VVA) system. The VVA operates on the intake valves, and realizes a late Miller combustion cycle. The control strategy implemented is a multilinear-model predictive control (MPC), which manipulates the intake valve hold and closure timing, the fuel injection timing, and the needle opening pressure. The MPC objectives are: (i) to keep NOx emissions under a reference level, (ii) to keep the air-fuel ratio over a certain reference, while (iii) minimizing fuel consumption under other constraints. The use of a model predictive control strategy is motivated by the fact that the system is a multi-input multi-output system, with several constraints applied to it. This paper presents the applied control strategy and simulation results illustrating the potential of the proposed control. The simulation results show that the control strategy is applicable, and that the fuel consumption is minimized, but also that further refinements are required.

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Dynamic feedback linearization of Diesel engines with intake variable valve actuation

Cited by 14 publications

References 18 publications

Prioritization-based constrained trajectory planning for a nonlinear turbocharged air system with EGR

Prioritization-based constrained trajectory planning for a nonlinear turbocharged air system with EGR

Control no lineal de velocidad y aire alimentado en un motor diésel con turbocompresor y recirculación de gases de escape

Air-Path Model Predictive Control of a Heavy-Duty Diesel Engine with Variable Valve Actuation

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