Volume 1, Number 1, March 2018 , pages 105-121 DOI: https://doi.org/10.12989/aae.2018.1.1.105 |
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Parametric investigation of a hybrid vehicle\'s achievable fuel economy with optimization based energy management strategy |
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Ali Amini, S. Caglar Baslamisli, Bayramcan Ince, Kerem Koprubasi and Selim Solmaz
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Abstract | ||
The hybrid electric powertrain is a robust solution that allows for major improvements in both fuel economy and emission reduction. In the present study, a through-the-road hybrid vehicle model with an electric motor driving the rear axle and an Internal Combustion Engine (ICE) driving the front axle has been constructed. We then present a systematic method for the determination of a real time applicable optimal Energy Management Strategy (EMS) for a hybrid road vehicle. More precisely, we compare the performance of rule-based EMS strategies to an optimization-based strategy, namely ECMS (Equivalent Consumption Minimization Strategy). The comparison is conducted in parallel with a parameterization of the size of the internal combustion engine and the implementation of a Continuously Variable Transmission (CVT) that allows following the line of best fuel economy. For the FTP-75 driving cycle, the constrained engine On-off control algorithm is shown to offer a 28% improvement potential of fuel consumption compared to the conventional internal combustion engine while the ECMS strategy achieves an improved potential of nearly 33%. | ||
Key Words | ||
parallel hybrid vehicle; energy management strategy; fuel consumption | ||
Address | ||
Ali Amini: Department of Mechanical Engineering, Ataturk University, 25240 Erzurum, Turkey S. Caglar Baslamisli and Bayramcan Ince: Department of Mechanical Engineering, Hacettepe University, 06800 Ankara, Turkey Kerem Koprubasi: Ford Otosan A.Ş., Sancaktepe, 34885 Istanbul, Turkey Selim Solmaz: Department of Mechatronics Engineering, Near East University, 99138 Nicosia, TRNC | ||