Zweistufige Turboaufladung — Konzept für Hochaufgeladene Ottomotoren

Adomeit, Philipp; Sehr, Andreas; Glück, Sandra; Wedowski, Stefan

doi:10.1007/bf03225575

Cited by 9 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first stage is formed by the large scale compressor (LP stage) followed by the small scale compressor (HP stage). Further details about the boost system are provided in Adomeit et al 15…”

Section: System Setup In the Test Vehiclementioning

confidence: 99%

Model predictive air path control for a two-stage turbocharged spark-ignition engine with low pressure exhaust gas recirculation

Keller

Geiger

Günther

et al. 2020

International Journal of Engine Research

View full text Add to dashboard Cite

Innovative air path concepts for turbocharged spark-ignition engines with exhaust gas recirculation impose high demands on the control due to nonlinearities and cross-couplings. This contribution investigates the control of the air and exhaust gas recirculation paths of a two-stage turbocharged spark-ignition engine with low pressure exhaust gas recirculation. Using exhaust gas recirculation at high loads, the in-cylinder temperature can be lowered, reducing the knock tendency, while at the same time preventing the need for the enrichment of the air/fuel ratio. Air and exhaust gas recirculation paths are cross-coupled and show different delay times. To tackle these challenges, a data-based two-stage model predictive controller is proposed: The target selector accounts for the overactuated system structure, while the dynamic controller adjusts the charging pressure and exhaust gas recirculation rate. The prediction model setup is based on a small amount of dyno-run measurement data. To ensure real-time capability, the model is kept as simple as possible. This allows for fast turnaround times of the algorithm, while maintaining the necessary accuracy in steady-state and transient operation. This study focuses on a two-stage control concept based on a target selector for optimal stationary control inputs and the dynamic controller considering the dynamic behavior of the air and exhaust gas recirculation paths. Subsequently, the control concept for the two-stage turbocharged spark-ignition engine with low pressure exhaust gas recirculation is validated via experimental tests under real-driving conditions on an automotive test track, using a prototype test vehicle. Results show that boost pressure as well as exhaust gas recirculation rate setpoints are met without overshoot and control deviation with settling times being close to the boundaries set by the hardware.

show abstract

Section: System Setup In the Test Vehiclementioning

confidence: 99%

Model predictive air path control for a two-stage turbocharged spark-ignition engine with low pressure exhaust gas recirculation

Keller

Geiger

Günther

et al. 2020

International Journal of Engine Research

View full text Add to dashboard Cite

show abstract

Trends—Spark Ignition

Pischinger

Nijs

Adomeit

et al. 2014

Encyclopedia of Automotive Engineering

View full text Add to dashboard Cite

Current and future combustion engine development targets a considerable reduction in fuel consumption and emissions to meet strict emission legislation despite steady or increasing customer comfort and performance demands. Additionally, reduced time to market is required despite increasing variations in customer demands and fuel qualities in worldwide markets. To meet these targets, gasoline engines have made progress in efficiency by the introduction of technologies such as direct injection in combination with downsizing and turbo‐ or supercharging, valve train variability, and a variety of additional measures to reduce friction losses such as electrification of accessories. In this article, current and future engine development trends are described and illustrated in detail. Potential future measures to further reduce fuel consumption are pointed out and evaluated. Besides well‐known mega trends such as downsizing and variable valve trains, concepts such as controlled autoignition, variable compression, and new ignition systems are considered. In general, the article shows the potential of new technologies to improve fuel consumption and emission behavior of future combustion engines.

show abstract

Aufladung von Verbrennungsmotoren

Schreiner

2014

Basiswissen Verbrennungsmotor

View full text Add to dashboard Cite

Zweistufige Turboaufladung — Konzept für Hochaufgeladene Ottomotoren

Cited by 9 publications

References 1 publication

Model predictive air path control for a two-stage turbocharged spark-ignition engine with low pressure exhaust gas recirculation

Model predictive air path control for a two-stage turbocharged spark-ignition engine with low pressure exhaust gas recirculation

Trends—Spark Ignition

Aufladung von Verbrennungsmotoren

Contact Info

Product

Resources

About