THE EFFECT OF DIFFERENT GEAR RATIO SELECTION ALGORITHMS ON THE EFFICIENCY OF CONVENTIONAL AND PARALLEL HYBRID DRIVETRAINS

Yıl 2017, Cilt: 18 Sayı: 4, 804 - 818, 31.10.2017

Ali Amini S. Çağlar Başlamışlı Bayramcan İnce Mertcan Koçak

https://doi.org/10.18038/aubtda.340367

Öz

Road vehicles using electric power sources have become
increasingly popular in the last decade. Meanwhile,
battery technology is still not mature enough to meet expected vehicle range; thus
the transition from ICE vehicle to fully electric vehicle is not imminent.
Therefore the concept of hybrid drivetrain technology was introduced. The
hybrid powertrain configuration includes at least two different energy
converters together with an energy storage medium. In this article, different
gear shifting algorithms were introduced to increase ICE efficiency in
conventional vehicle. Besides, a parallel hybrid configuration was also
introduced to enhance drivetrain efficiency. The Equivalent Energy Minimization
Method (ECMS) and Dynamic Programming (DP) algorithms were selected as online
and offline implementable optimal control methods for hybrid power sharing
management. Totally six different case studies were planned to compare the
efficiency of each configuration. Finally, the effect of the gear ratio
selection and power split algorithms were compared on conventional and parallel
hybrid drivetrains regarding overall efficiency.

Anahtar Kelimeler

Parallel hybrid vehicle, optimal gear shifting, consumed energy minimization

Kaynakça

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