An Evaluation of Several Methods for Calculating Transient Trapped Air Mass with Emphasis on the “Delta P” Approach

Worm, Jeremy

doi:10.4271/2005-01-0990

Cited by 31 publications

(22 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…for misfire detection [67], for incylinder trapped air mass estimation [22,68,69], etc. ); however, it has not been implemented until recently to series production.…”

Section: Combustion Controlmentioning

confidence: 99%

A Challenging Future for the IC Engine: New Technologies and the Control Role

Payri

Lujan

Guardiola

et al. 2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

-New regulations on pollutants and, specially, on CO 2 emissions could restrict the use of the internal combustion engine in automotive applications. This paper presents a review of different technologies under development for meeting such regulations, ranging from new combustion concepts to advanced boosting methods and after-treatment systems. Many of them need an accurate control of the operating conditions and, in many cases, they impose demanding requirements at a system integration level. In this framework, engine control disciplines will be key for the implementation and development of the next generation engines, taking profit of recent advancements in models, methods and sensors. According to authors' opinion, the internal combustion engine will still be the dominant technology in automotive applications for the next decades.Re´sume´-Un challenge pour le futur du moteur a`combustion interne : nouvelles technologies et roˆle du controˆle moteur -Les nouvelles normes sur les e´missions, en particulier le CO 2 , pourraient re´duire l'utilisation du moteur a`combustion interne pour les ve´hicules. Cet article pre´sente une revue de diffe´rentes technologies en cours de de´veloppement afin de respecter ces normes, depuis de nouveaux concepts de combustion jusqu'a`des syste`mes avance´s de suralimentation ou de post-traitement. La plupart de ces technologies demande un controˆle pre´cis des conditions de fonctionnement et impose souvent de fortes contraintes lors de l'inte´gration des syste`mes. Dans ce contexte et en profitant des dernie`res avance´es dans les mode`les, les me´thodes et les capteurs, le controˆle moteur jouera un roˆle clef dans la mise en oeuvre et le de´veloppement de la prochaine ge´ne´ration de moteurs. De l'avis des auteurs, le moteur ac ombustion interne restera la technologie dominante pour les ve´hicules des prochaines de´cennies.

show abstract

“…for misfire detection [67], for incylinder trapped air mass estimation [22,68,69], etc. ); however, it has not been implemented until recently to series production.…”

Section: Combustion Controlmentioning

confidence: 99%

A Challenging Future for the IC Engine: New Technologies and the Control Role

Payri

Lujan

Guardiola

et al. 2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

show abstract

“…Note that the behaviour of the residual fraction variation is quite different of that obtained in spark ignited engines [21][22][23], where intake manifold throttling can cause exhaust to intake density ratio importantly increase. On the other hand, in the case of important valve overlap, both shortcut rate and residual gas fraction can importantly vary depending on the operative conditions.…”

Section: Air Mass Flow and Air Chargementioning

confidence: 82%

“…The method used in this paper, known as the Dp-method, has been previously applied to naturally aspirated spark ignited engines [20] (and with different modifications in [21][22][23]), but no experience on turbocharged diesel engines has been published. This method is based on the analysis of the pressure evolution of the in-cylinder pressure during the compression stroke: the pressure increase between two known points of the compression stroke can be correlated with the air charge in the cylinder.…”

Section: Introductionmentioning

confidence: 99%

Air mass flow estimation in turbocharged diesel engines from in-cylinder pressure measurement

Desantes

Galindo

Guardiola

et al. 2010

Experimental Thermal and Fluid Science

113

View full text Add to dashboard Cite

“…In research environments it is usually addressed by determining each flow separately (ṁ air , m f uel ,ṁ EGR ,...) by independent measurements or models [20]. The stationary uncertainty associated is quantified around 5% [21] due to the multiple sources of uncertainties, while the transient errors are considered an important 120 problem because of the flow assumptions [22]. Other alternatives, such as volumetric efficiency equation [20], emptying-and-filling models [23,24,25] or ∆p methods [22,26] suffer from the simplistic approach and the use of parameters that are considered to be known and invariant with engine operation (such as volumetric efficiency, in-cylinder gas temperature, polytropic coefficient during…”

Section: Trapped Mass Estimation 115mentioning

confidence: 99%

Estimation of trapped mass by in-cylinder pressure resonance in HCCI engines

Luján

Guardiola

Plá

et al. 2016

Mechanical Systems and Signal Processing

View full text Add to dashboard Cite

Elsevier Luján, JM.; Guardiola, C.; Pla Moreno, B.; Bares-Moreno, P. (2016) AbstractHigh pressure gradients at homogeneous charge compression ignition (HCCI) engines heavily excite the pressure resonance. The pressure resonant frequency depends on speed of sound in the cylinder, and thus on the bulk gas temperature. Present paper profits this relation estimating the trapped mass inside the cylinder. In contrast to other estimation methods in the literature, the presented method is based on the trace of the in-cylinder pressure during the cycle; therefore, it permits a cycle-to-cycle mass estimation, and avoids errors associated with other assumptions, such as heat transfer during compression or initial temperature of the in-cylinder gases. The proposed strategy only needs the pressure signal, a volume estimation and a composition assumption to obtain several trapped mass estimates during one cycle. These estimates can be later combined for providing an error estimate of the measurement, with the assumption of negligible blow-by. The method is demonstrated in two HCCI engines of different size, showing good performance in steady operation and presenting great potential to control transient operation.

show abstract

An Evaluation of Several Methods for Calculating Transient Trapped Air Mass with Emphasis on the “Delta P” Approach

Cited by 31 publications

References 3 publications

A Challenging Future for the IC Engine: New Technologies and the Control Role

A Challenging Future for the IC Engine: New Technologies and the Control Role

Air mass flow estimation in turbocharged diesel engines from in-cylinder pressure measurement

Estimation of trapped mass by in-cylinder pressure resonance in HCCI engines

Contact Info

Product

Resources

About