Verschärfte Anforderungen an die Luftpfadregelung bei Nutzfahrzeugmotoren

Körfer, Thomas; Ruhkamp, Ludger; Herrmann, Olaf Erik; Linssen, René; Adolph, Dirk

doi:10.1007/bf03227504

Cited by 13 publications

(3 citation statements)

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“…Total engine-out N O x emissions are computed by assuming that all engine cylinders are equal to the cylinder from which the in-cylinder pressure measurement is taken. Although cylinder-to-cylinder deviations can be significant, 7,9 it is not trivial to estimate the EGR distribution among the cylinders on-line.…”

Section: Virtual N O X Sensor Conceptmentioning

confidence: 99%

“…These implementations have been achieved mostly through black-box approaches or semi-empirical approaches, using correlations with intake manifold oxygen mass fraction. 6–8 In comparison, this document presents the successful implementation of a physics-based engine-out Virtual N O x sensor on a real-time platform. This Virtual N O x sensor is validated on a Heavy-Duty (HD) EURO-VI diesel engine.…”

Section: Introductionmentioning

confidence: 99%

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Experimental validation of a virtual engine-out NOx sensor for diesel emission control

Mentink¹,

Valdivieso²,

Forrai³

et al. 2019

International Journal of Engine Research

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Motivated by automotive emission legislations, a Virtual [Formula: see text] sensor is developed. This virtual sensor consists of a real-time, phenomenological model that computes engine-out [Formula: see text] by using the measured in-cylinder pressure signal from a single cylinder as its main input. The implementation is made on a Field Programmable Gate Array–Central Processing Unit architecture to ensure the [Formula: see text] computation is ready at the end of the combustion cycle. The Virtual [Formula: see text] sensor is tested and validated on an EURO-VI Heavy-Duty Diesel engine platform. The Virtual [Formula: see text] sensor is proven to meet the accuracy of a production [Formula: see text] sensor for steady-state conditions and has better frequency response compared to the production [Formula: see text] sensor.

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Section: Virtual N O X Sensor Conceptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental validation of a virtual engine-out NOx sensor for diesel emission control

Mentink¹,

Valdivieso²,

Forrai³

et al. 2019

International Journal of Engine Research

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“…The equipment of exhaust gas aftertreatment are costly, reach their nominal efficiency only in a limited exhaust gas temperature and composition range and most of them must be cyclically regenerated. It is pursued in nowadays diesel engine development to avoid aftertreatment systems or at least reduce the number equipment [10] due to the mentioned disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Control oriented air path model for compressed air boosted Diesel engines

Bárdos¹,

Németh²

2013

Per. Pol. Transp. Eng.

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In this paper an air path model is presented for control system design. The model was developed for direct injected, turbocharged and intercooled commercial vehicle diesel engines which are equipped with compressed air booster system (PBS R -Pneumatic Booster System) [12], high pressure exhaust gas recirculation (EGR) with EGR-cooler and exhaust brake (EB). Current and next generation emission standards introduced significant limitations for NO x and soot. It is challenging to handle these components, especially at transient engine operations. Nitric oxide formation can be limited with an appropriate amount of exhaust gas recirculation. Soot formation is influenced mainly by the air-fuel ratio of the mixture which can be affected by the intake manifold pressure. Therefore with the targeted design of a suitable air path controller the modeled engine setup is able to handle both the NO x and soot formation in transient cases. The reported model is the first step of this work. KeywordsDiesel engine · Air path system · EGR · Compressed air booster · Turbo-lag · Model-based control AcknowledgementThe work is connected to the scientific program of the "Development of quality-oriented and harmonized R+D+I strategy and functional model at BME project. This project is supported by the New Széchenyi Plan (

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