This content is not included in your SAE MOBILUS subscription, or you are not logged in.
A Simulation Based Analysis of 12V and 48V Microhybrid Systems Across Vehicle Segments and Drive Cycles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2015 by SAE International in United States
Annotation ability available
The majority of studies in automotive electrification technology focus on the performance of high voltage HEV and EV powertrains. With the introduction of microhybrid systems as a near term technology trend, this work focuses on an analysis of low voltage (<60V) systems across multiple vehicle segments and region-specific regulatory drive cycles. Vehicle simulation results are presented for 12V and 48V vehicle systems equipped with start-stop and regenerative braking, features commonly associated with microhybrid vehicles. Simulation results show that fuel economy benefits from start-stop vary significantly between drive cycles. In contrast, total energy recuperation is similar across all vehicle classes for 12V microhybrid systems. For 48V systems, total recuperated energy increases with vehicle mass while the percent fuel economy benefit is highest for lighter vehicles. The results suggest that a single 12V electrification system may be implemented for a range of segments and that technology adaptation trends will be influenced by region specific regulatory drive cycles.
|Technical Paper||Axial Flux Variable Gap Motor: Application in Vehicle Systems|
|Technical Paper||Model Validation of the Chevrolet Volt 2016|
CitationRick, A. and Sisk, B., "A Simulation Based Analysis of 12V and 48V Microhybrid Systems Across Vehicle Segments and Drive Cycles," SAE Technical Paper 2015-01-1151, 2015, https://doi.org/10.4271/2015-01-1151.
- Ponticel , P. EPA-OTAQ chief: ‘Things look really good’ Automotive Engineering 16 17 Jul. 2014
- Halbach , S. , Sharer , P. , Pagerit , S. , Rousseau , A. et al. Model Architecture, Methods, and Interfaces for Efficient Math-Based Design and Simulation of Automotive Control Systems SAE Technical Paper 2010-01-0241 2010 10.4271/2010-01-0241
- Moawad , A. , Kim , N. , and Rousseau , A. Impact of Technology on Electric Drive Fuel Consumption and Cost SAE Technical Paper 2012-01-1011 2012 10.4271/2012-01-1011
- Barlow , T. J. A Reference Book of Driving Cycles for Use in the Measurement of Road Vehicle Emissions: Version 3 Bracknell: IHS 2009
- Ichiro . Sakai GHG Regulations: Stringency Comparison world wide & Implications of Coming US Standard. November 3 2001 October 31 2014 http://www.rff.org/Documents/Events/Seminars/First_Wed_Seminars/101103_cafe/101103_Sakai.pdf
- Gaines L. , Rask E. , and Keller . G. Which Is Greener: Idle, or Stop and Restart? Comparing Fuel Use and Emissions for Short Passenger-Car Stops Argonne National Laboratory November 2012 October 31 2014 http://www.transportation.anl.gov/pdfs/EE/893.PDF
- Wolff S. , Abendroth D. , Weigl W. , Linner C.-P. , Neudecker R. , Schneider M. , Huber W. , Rau A. Proceedings of the 7 th Stuttgart International Symposium Automotive and Engine Technology Stuttgart, Germany March 2007
- EPA May 2011 Fact Sheet: New Fuel Economy and Environment Labels for a New Generation of Vehicles U.S. Environmental Protection Agency October 31 2014 http://www.epa.gov/carlabel/documents/420f11017a.pdf