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Energies 2017, 10(4), 437; doi:10.3390/en10040437

Design Methodology of a Power Split Type Plug-In Hybrid Electric Vehicle Considering Drivetrain Losses

School of Mechanical Engineering, Sungkyunkwan University, Suwon-si 16419, Korea
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Academic Editor: Jih-Sheng (Jason) Lai
Received: 11 January 2017 / Revised: 13 March 2017 / Accepted: 23 March 2017 / Published: 25 March 2017
View Full-Text   |   Download PDF [11711 KB, uploaded 25 March 2017]   |  

Abstract

This paper proposes a design methodology for a power split type plug-in hybrid electric vehicle (PHEV) by considering drivetrain losses. Selecting the input split type PHEV with a single planetary gear as the reference topology, the locations of the engine, motor and generators (MGs), on the speed lever were determined by using the mechanical point considering the system efficiency. Based on the reference topology, feasible candidates were selected by considering the operation conditions of the engine, MG1, and a redundant element. To evaluate the fuel economy of the selected candidates, the loss models of the power electronic system and drivetrain components were obtained from the mathematical governing equation and the experimental results. Based on the component loss model, a comparative analysis was performed using a dynamic programming approach under the presence or absence of the drivetrain losses. It was found that the selection of the operating mode and the operation time of each mode vary since the drivetrain loss affects the system efficiency. In addition, even if the additional modes provide the flexibility of selecting the operating mode that results in a higher system efficiency for the given driving condition, additional drivetrain elements for realizing the modes can deteriorate the fuel economy due to their various losses. View Full-Text
Keywords: design methodology; power split type; plug-in hybrid electric vehicle (PHEV); drivetrain losses; dynamic programming design methodology; power split type; plug-in hybrid electric vehicle (PHEV); drivetrain losses; dynamic programming
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Son, H.; Park, K.; Hwang, S.; Kim, H. Design Methodology of a Power Split Type Plug-In Hybrid Electric Vehicle Considering Drivetrain Losses. Energies 2017, 10, 437.

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