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

Hanho Son, Kyusik Park, Sungho Hwang and Hyunsoo Kim
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Hanho Son: School of Mechanical Engineering, Sungkyunkwan University, Suwon-si 16419, Korea
Kyusik Park: School of Mechanical Engineering, Sungkyunkwan University, Suwon-si 16419, Korea
Sungho Hwang: School of Mechanical Engineering, Sungkyunkwan University, Suwon-si 16419, Korea
Hyunsoo Kim: School of Mechanical Engineering, Sungkyunkwan University, Suwon-si 16419, Korea

Energies, 2017, vol. 10, issue 4, 1-18

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.

Keywords: design methodology; power split type; plug-in hybrid electric vehicle (PHEV); drivetrain losses; dynamic programming (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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