Design optimization of an electric variable transmission for hybrid electric vehicles

Qiwei Xu; Jing Sun; Wenjuan Wang; Yunqi Mao; Shumei Cui

doi:10.3390/en11051118

Design optimization of an electric variable transmission for hybrid electric vehicles

Qiwei Xu^*
, Jing Sun
, Wenjuan Wang
, Yunqi Mao
, Shumei Cui

^*Corresponding author for this work

School of Electrical Engineering and Automation

Chongqing University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

An electric variable transmission (EVT) for hybrid electric vehicles (HEVs) is investigated in this paper. With a special double rotor structure, the EVT splits and reintegrates the output power of the internal combustion engine (ICE) to run at its optimum working efficiency. However, the high electromagnetic coupling degree causes torque ripple and affects the dynamic performance of the EVT. After introducing the configuration and working principle, the torque mathematical model of the EVT in an ABC three-phase coordinate system is proposed to analyze the cause of this torque ripple. Besides, a finite element method-based (FEM) structural optimization design for reducing the torque ripple and improving the working stability is presented. The magnetic field distribution, induced voltage and torque property validate the rationality of optimization.

Original language	English
Article number	1118
Journal	Energies
Volume	11
Issue number	5
DOIs	https://doi.org/10.3390/en11051118
State	Published - 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Electric variable transmission
Hybrid electric vehicles
Structural optimization design
Torque mathematical model
Torque ripple

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10.3390/en11051118

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@article{7dcbdf1fdfd447cb99bb1d11c8ad0009,

title = "Design optimization of an electric variable transmission for hybrid electric vehicles",

abstract = "An electric variable transmission (EVT) for hybrid electric vehicles (HEVs) is investigated in this paper. With a special double rotor structure, the EVT splits and reintegrates the output power of the internal combustion engine (ICE) to run at its optimum working efficiency. However, the high electromagnetic coupling degree causes torque ripple and affects the dynamic performance of the EVT. After introducing the configuration and working principle, the torque mathematical model of the EVT in an ABC three-phase coordinate system is proposed to analyze the cause of this torque ripple. Besides, a finite element method-based (FEM) structural optimization design for reducing the torque ripple and improving the working stability is presented. The magnetic field distribution, induced voltage and torque property validate the rationality of optimization.",

keywords = "Electric variable transmission, Hybrid electric vehicles, Structural optimization design, Torque mathematical model, Torque ripple",

author = "Qiwei Xu and Jing Sun and Wenjuan Wang and Yunqi Mao and Shumei Cui",

note = "Publisher Copyright: {\textcopyright} 2018 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2018",

doi = "10.3390/en11051118",

language = "英语",

volume = "11",

journal = "Energies",

issn = "1996-1073",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "5",

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TY - JOUR

T1 - Design optimization of an electric variable transmission for hybrid electric vehicles

AU - Xu, Qiwei

AU - Sun, Jing

AU - Wang, Wenjuan

AU - Mao, Yunqi

AU - Cui, Shumei

PY - 2018

Y1 - 2018

N2 - An electric variable transmission (EVT) for hybrid electric vehicles (HEVs) is investigated in this paper. With a special double rotor structure, the EVT splits and reintegrates the output power of the internal combustion engine (ICE) to run at its optimum working efficiency. However, the high electromagnetic coupling degree causes torque ripple and affects the dynamic performance of the EVT. After introducing the configuration and working principle, the torque mathematical model of the EVT in an ABC three-phase coordinate system is proposed to analyze the cause of this torque ripple. Besides, a finite element method-based (FEM) structural optimization design for reducing the torque ripple and improving the working stability is presented. The magnetic field distribution, induced voltage and torque property validate the rationality of optimization.

AB - An electric variable transmission (EVT) for hybrid electric vehicles (HEVs) is investigated in this paper. With a special double rotor structure, the EVT splits and reintegrates the output power of the internal combustion engine (ICE) to run at its optimum working efficiency. However, the high electromagnetic coupling degree causes torque ripple and affects the dynamic performance of the EVT. After introducing the configuration and working principle, the torque mathematical model of the EVT in an ABC three-phase coordinate system is proposed to analyze the cause of this torque ripple. Besides, a finite element method-based (FEM) structural optimization design for reducing the torque ripple and improving the working stability is presented. The magnetic field distribution, induced voltage and torque property validate the rationality of optimization.

KW - Electric variable transmission

KW - Hybrid electric vehicles

KW - Structural optimization design

KW - Torque mathematical model

KW - Torque ripple

UR - https://www.scopus.com/pages/publications/85047075969

U2 - 10.3390/en11051118

DO - 10.3390/en11051118

M3 - 文章

AN - SCOPUS:85047075969

SN - 1996-1073

VL - 11

JO - Energies

JF - Energies

IS - 5

M1 - 1118

ER -

Design optimization of an electric variable transmission for hybrid electric vehicles

Abstract

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Keywords

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