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Development of Torque-Based Engine Management System for Range Extender Engine
Published October 15, 2013 by Society of Automotive Engineers of Japan in Japan
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Range extender (RE), combined by an engine and a generator, charges the battery on the electric vehicle. Power management strategy of a range extended electric vehicle (REEV) will determine the required charging power according to battery state of charge (SOC) and driver demands. The charging power demand will be further converted into required operation torque and rotational speed demands from engine. Torque-based engine management system (EMS) is, therefore, required to receive the torque command from power management strategy for controlling the engine at required torque. This research develops a torque-based EMS for a RE engine which is a 125cc four-stroke semi-direct injection engine and fueled by liquefied petroleum gas (LPG). The RE engine is operated to provide stable power output for driving generator, so we only select two operating points for this engine. The first operating point is for higher power output and better fuel economy. The other operating point is selected for noise and vibration harshness (NVH) concern with lower engine rotational speed. Simulation and experimental results show that electronic throttle control (ETC) and spark control can satisfy the torque commands and ensure the stability. This setting provides great contribution to fuel economy and emission reduction, also comfort concerns for passengers.
CitationLiang, Y., Tsai, H., Peng, Y., and Wu, Y., "Development of Torque-Based Engine Management System for Range Extender Engine," SAE Technical Paper 2013-32-9062, 2013, https://doi.org/10.4271/2013-32-9062.
- Rust A. and Graf B. J. NVH of Electric Vehicles with Range Extender SAE Paper No. 2010-01-1404
- Gerhardt J. , Hönninger H. and Bischof H. A New Approach to Functional and Software Structure for Engine Management Systems - BOSCH ME7 SAE Paper No. 980801
- Mencher B. , Jessen H. , Kaiser L. and Gerhardt J. Preparing for CARTRONIC-Interface and New Strategies for Torque Coordination and Conversion in a Spark Ignition Engine-Management System SAE Paper NO. 2001-01-0268
- Guenther D. W. and Gerhardt J. MOTRONIC-Torque Guided Engine Management Systems to Meet Future Challenge in Emissions and Fuel Consumption Reduction SAE Paper No. 2000-01-1420
- Satou S. , Nakagawa S. , Kakuya H. , Minowa T. , Nemoto M. and Konno H. An Accurate Torque-based Engine Control by Learning Correlation between Torque and Throttle Position SAE Paper No. 2008-01-1005
- Michael A. and Mueller E. Determination of the Air/Fuel Ratio of a SI Engine During Transient With a Standard UEGO Sensor SAE 2001-01-1955 2001
- Heintz N. , Mews M. , Stier G. , Beaumont A. J. and Noble A. D. An Approach to Torque-Based Engine Management Systems SAE Paper No. 2001-01-0269
- Wu Y. Y. , Chen B. C. and Tran A. T. Application of Semi-Direct Injection for Spark-Ignition Engine International Journal of Vehicle Design 54 4 2010 356 370
- Wu Y. Y. , Chen B. C. , Wu C. H. and Tsai H. C. New Charging Model Imparting the Valve Timing for Real-Time Simulation ASME Paper ICE2009-76028 2009
- Moskwa J. J. and Hedrick J. K. Modeling and Validation of Automotive Engines for Control Algorithm Development Transactions of the ASME, Journal of Dynamic Systems, Measurement, and Control 1992 114 278 285
- Wu Y. Y. , Chen B. C. , Wu C. H. and Tsai H. C. New Charging Model Imparting The Valve Timing For Real-Time Simulation SAE Paper No. 2009-76028
- Drakunov S. , Izzoni G. and Wang Y. Y. On-line Estimation of Indicated Torque in IC Engines using Nonlinear Observers SAE Paper 950840 1995
- Kouremenos D. A. , Rakopoulos C. D. , Hountalas D. T. and Zannis T. K. Development of a Detailed Friction Model to Predict Mechanical Losses at Elevated Maximum Combustion Pressures SAE Paper No. 2001-01-0333