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Reduction of CO 2 Emissions through Lubricant Thermal Management During the Warm Up of Passenger Car Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 05, 2016 by SAE International in United States
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Most major regional automotive markets have stringent legislative targets for vehicle greenhouse gas emissions or fuel economy enforced by fiscal penalties. Large improvements in vehicle efficiency on mandated test cycles have already taken place in some markets through the widespread adoption of technologies such as downsizing or dieselisation. There is now increased focus on approaches which give smaller, but significant incremental efficiency benefits, such as reducing parasitic losses due to engine friction.
The reduction in tail pipe CO2 emissions through the reduction of engine friction using lubricants has been reported by many authors. However, opportunities also exist to reduce the lubricant viscosity during warm up by the thermal management of the lubricant mass. This presents an attractive proposition to vehicle manufacturers because of the favorable cost-benefit ratios of thermal management systems and because this strategy can achieve some of the benefits that ordinarily require the lubricant viscosity grade to be lowered.
In this paper the experimental results from chassis dynamometer tests are analysed. The performance of two modern vehicles was determined using various lubricant thermal management strategies, including removing lubricant from the sump and pre-heating it during the vehicle soak period. The effect of these strategies on the emission of CO2 from the vehicle is described with reductions of up to 1.2% measured on the vehicles tested in this study.
CitationTaylor, O., Pearson, R., and Stone, R., "Reduction of CO2 Emissions through Lubricant Thermal Management During the Warm Up of Passenger Car Engines," SAE Technical Paper 2016-01-0892, 2016, https://doi.org/10.4271/2016-01-0892.
- E/ECE/324/Rev.1/Add.82/Rev.5-E/ECE/TRANS/505/Rev.1/Add.82/Rev.5. Annex 4a, Type I test, 6.3.2 http://www.unece.org/trans/main/wp29/wp29regs81-100.html 1 May 2015
- Andrews , G. , Ounzain , A. , Li , H. , Bell , M. et al. The Use of a Water/Lube Oil Heat Exchanger and Enhanced Cooling Water Heating to Increase Water and Lube Oil Heating Rates in Passenger Cars for Reduced Fuel Consumption and CO2 Emissions During Cold Start SAE Technical Paper 2007-01-2067 2007 10.4271/2007-01-2067
- Zammit , J.P. , Shayler , P.J. and Pegg , I. Thermal Coupling and Energy Flows between Coolant, Engine Structure and Lubricating Oil during Engine Warm up IMechE/ SAE Int Conf VTMS 10 Paper C1305/053 2011
- Kunze , K. , Wolff , S. , Lade , I. , and Tonhauser , J. A Systematic Analysis of CO2-Reduction by an Optimized Heat Supply during Vehicle Warm-up SAE Technical Paper 2006-01-1450 2006 10.4271/2006-01-1450
- Revereault , P. , Rouaud , C. , and MarchI , A. Fuel Economy and Cabin Heating Improvements Thanks to Thermal Management Solutions Installed in a Diesel Hybrid Electric Vehicle SAE Technical Paper 2010-01-0800 2010 10.4271/2010-01-0800
- Ernst , C. S. CO 2 Reduction potentials for passenger cars until 2020 Management Summary 113510 Institute fur kraftfahrzeuge Aachen December 2012 www.bmwi.de/Publikationen 22 March 2014
- Hess , U. Mitterer , Neugebauer A. , Riegert S. , Seider P. , Heat G. Management of the New BMW In-Line 6-Cylinder Engine MTZ 11 2005 66
- Zammit , J. , Shayler , P. , Gardiner , R. , and Pegg , I. Investigating the Potential to Reduce Crankshaft Main Bearing Friction During Engine Warm-up by Raising Oil Feed Temperature SAE Int. J. Engines 5 3 1312 1319 2012 10.4271/2012-01-1216
- Carden , P. Preston , M. V-Sim report: BP Vehicle simulation support BP Internal report October 2013
- Chisaki , J. , Yoshijima , K. , Kikuchi , T. , Morinaka , S. et al. Development of a New 2.0-Liter Fuel-Efficient Diesel Engine SAE Technical Paper 2013-01-0310 2013 10.4271/2013-01-0310
- Law , T. , Shayler , P.J. and Pegg , I. Investigations of sump design to improve the thermal management of oil temperature during engine warm up 299 309 Chandos Publishing Nottingham, United kingdom 2007
- Davison , E. and Haviland , M. Lubricant Viscosity Effects on Passenger Car Fuel Economy SAE Technical Paper 750675 1975 10.4271/750675
- Tanaka , H. , Nagashima , T. , Sato , T. , and Kawauchi , S. The Effect of 0W-20 Low Viscosity Engine Oil on Fuel Economy SAE Technical Paper 1999-01-3468 1999 10.4271/1999-01-3468
- Manni , M. and Florio , S. An Experimental Evaluation of the Impact of Ultra Low Viscosity Engine Oils on Fuel Economy and CO 2 Emissions SAE Technical Paper 2013-01-2566 2013 10.4271/2013-01-2566
- Tamoto , Y. , Kido , M. , and Murata , H. Possibilities of Ultra Low Viscosity Fuel Saving Gasoline Engine Oil SAE Technical Paper 2004-01-1936 2004 10.4271/2004-01-1936
- Zuidema , H. H. The performance of lubricating oils 1 Second Reinhold publishing corporation 1959
- Roberts , A. , Brooks , R. , Shipway , P. , Gilchrist , R. et al. Reducing Energy Losses from Automotive Engine Lubricants by Thermal Isolation of the Engine Mass SAE Technical Paper 2014-01-0672 2014 10.4271/2014-01-0672
- Brace , C. J. , Burke , R. D. and Moffa , J. 2009 Increasing accuracy and repeatability of fuel consumption measurement in chassis dynamometer testing Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 223 9 1163 1177 0954-4070
- Taylor , O. , Pearson , R. , Stone , R. , Carden , P and Ballard , H. Tribological behaviour of low viscosity lubricants in the piston to bore zone of a modern spark ignition engine Submitted to SAE Powertrains, Fuels, and Lubricants Conference October 20th-23rd 2014 Birmingham, UK