This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fuel Consumption and Emissions Effects in Passenger Car Diesel Engines through the Use of a Belt Starter Generator
Technical Paper
2015-01-1162
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Modern vehicles need to fulfil challenging requirements with respect to emissions, noise and fuel consumption. Up to the EU5 legislation a sound steady state application was sufficient for passenger car Diesel engines to meet these requirements, and fuel consumption was less in the focus than the emissions of nitrous oxides and soot, hydrocarbons and carbon monoxide.
Future legislation will require not only tighter limits in emissions but additionally will set fuel consumption targets. More demanding drive cycles will make it even more difficult to achieve these targets.
Additional to measures on the combustion engine, moderate electrification for energy recuperation as well as the supply of electrical generated torque to the drive train will increasingly find its way into modern passenger cars.
The presence of an electric machine can be used not only to reduce the fuel consumption but also the emissions of the combustion engine. One such method may be the reduction of load peak of the combustion engine, the so-called “phlegmatisation”, especially during acceleration. Phlegmatisation means the replacement of torque from the combustion engine by torque from the electric machine during transients. It not only reduces the peak load but also decreases the dynamic demands on the “slower” engine controls, namely the air path, which cannot respond to changes in demand cycle by cycle like for example the fuel path or the ignition.
The current paper reports on the application of this method. A 1.6 litre 4 cylinder engine was tested on an engine dynamometer, where the test bed brake was used to simulate the presence of an electric machine. Automated cycle driving was used at the Continental Regensburg Test Centre, to run various strategies in the World Harmonised Light Duty Test Cycle, WLTC, as well as in the New European Drive Cycle, NEDC. These results will be presented.
Recommended Content
Authors
Topic
Citation
Atzler, F., Wegerer, M., Mehne, F., Rohrer, S. et al., "Fuel Consumption and Emissions Effects in Passenger Car Diesel Engines through the Use of a Belt Starter Generator," SAE Technical Paper 2015-01-1162, 2015, https://doi.org/10.4271/2015-01-1162.Also In
References
- Aymanns et al FEV, Elektrische Aufladung, neue Freiheitsgrade durch höhere Bordnetzpannung Motortechnische Zeitschrift MTZ 2014
- Glahn et al. Adam Opel AG, Turbo-DI-Ottomotor mit elektrischem Zusatzverdichter, Potentialabschätzung im Fahrzeug Aufladetechnische Konferenz 2014
- Knorr . Graf , Huber , Jehle Antriebsmanagement in Hybridfahrzeugen mit 48V Bordnetz Motortechnische Zeitschrift MTZ 2014
- Schöppe D. , Knorr T. , Graf F. , Klingseis B. , Beer J. , Gutzmer P. , Hager S. , Schatz A. Downsized Gasoline Engine and 48 V Eco Drive - An Integrated Approach to Improve the Overall Propulsion System Efficiency Wiener Motoren Symposium 2014
- Weigand A. , Atzler F. Combustion strategies for EU6 and beyond in small D.I. diesel engines Emission Control Dresden 2008
- Atzler , F. , Weigand , A. , Rotondi , R. , Kastner , O. et al. Emissions reduction potential of high EGR rates in D.I. Diesel engines SAE Technical Paper 2007-24-0024 2007 10.4271/2007-24-0024
- Atzler , F. , Kastner , O. , Rotondi , R. , and Weigand , A. Multiple injection and rate shaping Part 1: Emissions reduction in passenger car Diesel engines SAE Technical Paper 2009-24-0004 2009 10.4271/2009-24-0004 Atzler , F. , Kastner , O. , Rotondi , R. , and Weigand , A. Multiple injection and rate shaping Part 2: Emissions reduction in passenger car Diesel engines Computational investigation SAE Technical Paper 2009-24-0012 2009 10.4271/2009-24-0012
- Kastner O. , Atzler F. , Rotondi R. , Weigand A. , Wenzlawski K. Advantages of sophisticated injection strategies in diesel engines Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines THIESEL Valencia September 2010
- Atzler F. , Kastner O. , Rotondi R. , Weigand A. Map of smart injection strategies 11. Internationales Stuttgarter Symposium Automobil und Motorentechnik February 2011
- Kastner O. , Atzler F. , Soriano O. , Weigand A. Analysis of novel injection strategies for Diesel engines Der Arbeitsprozess des Verbrennungsmotors Graz 2011
- Atzler F. , Weigand A. , Kastner O. , Rotondi R. Measures to improve the NOx-PM trade off for passenger cars at elevated engine load Internal Combustion Engines, Performance, Fuel economy and Emissions Institution of Mechanical Engineers London December 2009
- Schoeppe D. , Atzler F. , Kastner O. , Kapphan F. High Performance Diesel Direct Driven Piezo Common Rail Injection System 23. Aachen Colloquium Automobile and Engine Technology 2014
- Ladommatos, Abdelhalim, Zhao The effects of exhaust gas recirculation on Diesel emissions Int. Journal of Engine Research 1 1 January 2000