This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Potential of Electric Energy Recuperation by Means of the Turbocharger on a Downsized Gasoline Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 04, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The application of a turbocharger, having an electric motor/generator on the rotor was studied focusing on the electric energy recuperation on a downsized gasoline internal combustion engine (turbocharged, direct injection) using 1D-calculation approaches. Using state-of-the art optimization techniques, the settings of the valve timing was optimized to cater for a targeted pre-turbine pressure and certain level of residual gases in the combustion chamber to avoid abnormal combustion events. Subsequently, a steady-state map of the potential of electric energy recuperation was performed while considering in parallel different efficiency maps of the potential generator and a certain waste-gate actuation strategy. Moreover, the results were taken as input to a WLTP cycle simulation in order to identify any synergies with regard to fuel economy. Finally, the value of electric energy, either recuperated via the electric turbocharger, inputting the electric conversion efficiency as a function of the rotor speed of the turbocharger based on measured characteristics, was put in comparison to the same amount of electric energy, supplied by the conventional generator in the front-end accessory drive. The study revealed that the benefit of generating electric energy can be considered as little, and, moreover, results in only a very little difference versus the same amount of electricity, generated by a conventional generator.
CitationStoffels, H., Dunstheimer, J., and Hofmann, C., "Potential of Electric Energy Recuperation by Means of the Turbocharger on a Downsized Gasoline Engine," SAE Technical Paper 2017-24-0162, 2017, https://doi.org/10.4271/2017-24-0162.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Ernst, R. et al.: The New 3 Cylinder 1.0L Gasoline Direct Injection Turbo Engine from Ford. 20th Aachen Colloquium Automobile and Engine Technology, 2011.
- Gödeke, H.; Prevedel, K: Hybrid Turbocharger with Innovative Electric Motor. MTZ Worldw (2014) 75: 26. doi:10.1007/s38313-014-0030-2.
- Pasini, G. et al: Evaluation of an electric turbo compound system for SI engines: A numerical approach. Applied Energy 162 (2016) 527-540; doi:10.1016/j.apenergy.2015.10.143.
- Burke, R.D.: A Numerical Study of the Benefits of Electrically Assisted Boosting Systems. ASME Journal of Engineering for Gas Turbines and Power 138, no. 9 (2016): 092808.
- Ibaraki, S. et al.: Development of the ‘Hybrid Turbo’, an Electrically Assisted Turbocharger. Mitsubishi Heavy Ind. Tech. Rev 43, no. 3 (2006): 1-5.
- Dimitriou, P. et al.: Electric turbocharging for energy regeneration and increased efficiency at real driving conditions. Appl. Sci. 2017, 7, 350; doi:10.3390/app7040350
- Pucher, H.; Zinner, K.: Aufladung von Verbrennungsmotoren. 4th ed. Springer Verlag, 2012.
- Katrašnik, T.; Rodman, S.; Trenc, F.; Hribernik, A.; Medica. V.: Improvement of the dynamic characteristic of an automotive engine by a turbocharger assisted by an electric motor. ASME Journal of engineering for gas turbines and power 125, no. 2 (2003): 590-595.
- Panting, J.; Pullen, K. R.; Martinez-Botas, R.F.: Turbocharger motor-generator for improvement of transient performance in an internal combustion engine. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 215, no. 3 (2001): 369-383.
- Arsie, I. et al.: Modeling Analysis of Waste Heat Recovery via Thermo-Electric Generator and Electric Turbo-Compound for CO2 Reduction in Automotive SI Engines. Energy Procedia 82 ( 2015 ) 81 - 88; doi: 10.1016/j.egypro.2015.11.886
- Al-Hasan, N., Beer, J., Ehrhard, J., Lorenz, T. et al., "Charging Technologies for CO2 Optimization by Millerization," SAE Technical Paper 2015-01-1250, 2015, doi:10.4271/2015-01-1250.
- Seitz, H.F. et al.: Electrically assisted turbocharging in long-haul truck application. In Liebl J., Beidl C. (Hrsg.), Internationaler Motorenkongress 2016, Proceedings, DOI 10.1007/978-3-658-12918-7_50
- Stoffels, H., Quiring, S., and Pingen, B., "Analysis of Transient Operation of Turbo Charged Engines," SAE Int. J. Engines 3(2):438-447, 2010, doi:10.4271/2010-32-0005.
- Stoffels, H., "An Approach for the Objective Description of Vehicle Longitudinal Acceleration," SAE Technical Paper 2011-24-0166, 2011, doi:10.4271/2011-24-0166.