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Evaluation of Auxiliary Device Efficiency in Heavy Vehicle Application
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Embedded Control Systems.
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.ORCID iD: 0000-0002-7550-3134
Scania CV AB.
2013 (English)In: Proceedings of the ASME Design Engineering Technical Conference, 2013Conference paper (Refereed)
Abstract [en]

To investigate the energy consumption related to auxiliary devices, as a basis for optimizing the auxiliary systems’ layout and identifying potential for fuel consumption reduction, a study has been carried out at Scania CV AB. The following auxiliary devices have been investigated: Alternator, water pump, cooling fan, air compressor, air conditioning compressor, oil pump and power steering pump. Those auxiliary devices represent 5–7% of the total fuel consumption in long haulage truck applications, while for a city bus the figure could be as high as 50%. One of the challenges of evaluating the fuel consumption of auxiliary devices is the variance: it depends on many factors including road data, driver profile, ambient conditions (temperature, pres- sure, precipitation) and more. To investigate this variance, test data collected from the Scania test fleet has been analyzed. The data are used as input to a MATLAB/Simulink model of the aux- iliary systems. This way, a large population of trucks has been investigated, for many driving cycles under realistic conditions. A general model for reducing fuel consumption for auxiliary sys- tems has been developed.

Place, publisher, year, edition, pages
Keyword [en]
Auxiliary systems, accessory devices, data acquisition
National Category
Vehicle Engineering Other Mechanical Engineering
URN: urn:nbn:se:kth:diva-125823DOI: 10.1115/DETC2013-13395ISI: 000362240300031ScopusID: 2-s2.0-84896959151ISBN: 978-079185584-3OAI: diva2:645395
ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2013; Portland, OR, United States, 4-7 August, 2013

QC 20140610

Available from: 2013-09-04 Created: 2013-08-14 Last updated: 2015-10-29Bibliographically approved

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Sjöstedt, Carl-JohanWikander, JanFlemmer, Henrik
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