Charge control for direct injection spark ignition engines with EGR

Kolmanovsky, Ilya; Sun, Jing; Druzhinina, Maria; Nieuwstadt, Michiel Van

doi:10.1109/acc.2000.878767

Cited by 32 publications

(27 citation statements)

References 5 publications

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“…Last but no least, in the case of a variable nozzle turbocharger (VNT), the exhaust manifold pressure is influenced by the opening of the turbine nozzles which consequently affects the volumetric efficiency through changes in p 2 (see [2]). These phenomena cause η v of diesel engines to have a transient characterization different from its steady state behavior as shown in Figure 6 [15].…”

Section: Volumetric Efficiencymentioning

confidence: 99%

“…The task of lean air-to-fuel ratio measurement in diesel exhaust using a linear exhaust gas oxygen (UEGO) sensor is harder than the AFR measurement in the exhaust of gasoline engines (port injection [1], or direct injection [2]). Last, but not least, air charge estimation is very difficult during large exhaust gas recirculation (EGR) introduced to reduce oxides of nitrogen [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…An adaptive observer for the air charge estimation of a direct injections spark ignition (DISI) engine is shown in [2]. The authors, however use an UEGO sensor in addition to other intake manifold measurements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adaptive Air Charge Estimation for Turbocharged Diesel Engines Without Exhaust Gas Recirculation

Storset

Stefanopoulou

Smith

2004

Journal of Dynamic Systems, Measurement, and Control

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The paper presents an adaptive observer for in-cylinder air charge estimation for turbocharged diesel engines without exhaust gas recirculation (EGR). We assess the observability of the mean value engine model when the intake manifold pressure and the compressor flow are measured, and the performance of the observer is compared to existing schemes analytically and with limited simulations. Specifically, it is shown that the designed observer performs better than the conventional schemes during fast step changes in engine fueling level, eventhough it uses a simple but time varying parameterization of the volumetric efficiency. Furthermore, the estimate is less sensitive to changes in engine parameters than the existing schemes.

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Section: Volumetric Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Adaptive Air Charge Estimation for Turbocharged Diesel Engines Without Exhaust Gas Recirculation

Storset

Stefanopoulou

Smith

2004

Journal of Dynamic Systems, Measurement, and Control

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“…The problem is that controls towards the engine speed and manifold pressure have not been able to provide solutions to the needs of large torque which at times appear to be more responsive. Another approach that has been proven to be more effective is by controlling engine torque [12][13][14]. This automatically increases vehicle performance, improves fuel economy and reduces emissions.…”

Section: Introductionmentioning

confidence: 99%

Fuel Saving Strategy in Spark Ignition Engine Using Fuzzy Logic Engine Torque Control

Triwiyatno¹,

Sumardi²

2012

MST

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In the case of injection gasoline engine, or better known as spark ignition engines, an effort to improve engine performance as well as to reduce fuel consumption is a fairly complex problem. Generally, engine performance improvement efforts will lead to increase in fuel consumption. However, this problem can be solved by implementing engine torque control based on intelligent regulation such as the fuzzy logic inference system. In this study, fuzzy logic engine torque regulation is used to control the throttle position entered by the driver to achieve optimal engine torque. An engine torque vs. throttle position and engine speed mapping for vehicles with economical function is used to build this control process regulation. From the simulation result, it can be concluded that this control strategy is very effective to reduce fuel consumption and simultaneously to optimize the engine performance. Abstrak Strategi Penghematan Bahan Bakar pada Mesin dengan Pemicu Busi Melalui Kontrol Torsi Mesin denganLogika Fuzzy. Pada kasus kontrol mesin bensin, atau lebih dikenal sebagai mesin pengapian busi, upaya untuk meningkatkan kinerja mesin sekaligus mengurangi konsumsi bahan bakar adalah masalah yang cukup kompleks. Umumnya, upaya peningkatan performa mesin akan menyebabkan peningkatan konsumsi bahan bakar. Namun, hal ini dapat diselesaikan dengan melakukan kontrol torsi mesin berdasarkan peraturan cerdas seperti sistem inferensi logika fuzzy. Dalam studi ini, regulasi torsi mesin dengan logika fuzzy digunakan untuk mengontrol posisi throttle yang dimasukkan oleh pengemudi untuk mencapai torsi mesin yang optimal. Pemetaan torsi mesin vs posisi throttle dan kecepatan putar mesin untuk kendaraan dengan tujuan ekonomis digunakan untuk mendesain aturan proses kontrol. Dari hasil simulasi dapat disimpulkan bahwa strategi kontrol dengan logika fuzzy sangat efektif untuk mengurangi konsumsi bahan bakar dan sekaligus mengoptimalkan kinerja mesin.

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“…Therefore, several air fraction/EGR rate estimation methods have been proposed in the literature. In Chauvin et al [2006] Kolmanovski et al [2000], estimators of burned gas fraction in the intake manifold have been designed for single loop EGR. In Wang [2008], a method for estimating the air fraction in each section of the engine has been proposed for dual-loop EGR systems.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Air Fraction and Low-Pressure EGR Mass Flow Rate Estimation for Diesel Engines

Castillo

Witrant

Talon

et al. 2013

IFAC Proceedings Volumes

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This paper describes a low-pressure exhaust gas recirculation (LP-EGR) mass flow rate estimation method and a robust air mass fraction observer for a Diesel engine with dualloop EGR system. Both observers operate simultaneously eliminating the need for pressure measurement upstream the LP-EGR valve. A sliding mode observer is designed to estimate the LP-EGR mass flow rate using the standard sensors available in commercial Diesel engines. A robust linear parameter varying Kalman filter is designed for the air mass fraction estimation. The convergence and robustness of the observers are ensured by means of Lyapunov stability and a linear matrix inequality (LMI) framework for the sliding mode observer and robust Kalman filter, respectively. The observers are validated with a Motor Vehicle Emission Group (NMVEG) cycle using an engine model validated on an experimental benchmark as a reference.

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Charge control for direct injection spark ignition engines with EGR

Cited by 32 publications

References 5 publications

Adaptive Air Charge Estimation for Turbocharged Diesel Engines Without Exhaust Gas Recirculation

Adaptive Air Charge Estimation for Turbocharged Diesel Engines Without Exhaust Gas Recirculation

Fuel Saving Strategy in Spark Ignition Engine Using Fuzzy Logic Engine Torque Control

Simultaneous Air Fraction and Low-Pressure EGR Mass Flow Rate Estimation for Diesel Engines

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