Electric Drive Technology Trends, Challenges, and Opportunities for Future Electric Vehicles

Husain, Iqbal; Ozpineci, Burak; Islam, Sariful; Gurpinar, Emre; Su, Gui-Jia; Yu, Wensong; Chowdhury, Shajjad; Xue, Lingxiao; Rahman, Dhrubo; Sahu, Raj

doi:10.1109/jproc.2020.3046112

Cited by 278 publications

(96 citation statements)

References 50 publications

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“…Compared to ICEs, the volume of both types is relatively more compact, and, they also have a higher power to weight ratio. Even so, there are still continuous studies carried out to explore the implementation of advanced materials, like ultraconductive copper for motor windings, and grain boundary diffusion processed magnets, with the intention to increase the motors' power density even further [20]. The compactness and high-power density contribute positively to the power consumption of an EV.…”

Section: Main Components Of Ev Powertrainsmentioning

confidence: 99%

Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

et al. 2022

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Electric vehicles (EV) are quickly gaining a foothold in global markets due to their zero tailpipe emissions and increasing practicality in terms of battery technologies. However, even though EV powertrains emit zero emissions during driving, their efficiency has not been fully optimized, particularly due the commonly used single-speed transmission. Hence, this paper provides an extensive review on the latest works carried out to optimize the power flow in EV powertrains using multispeed discrete transmission, continuously variable transmission and multi-motor configurations. The relevant literatures were shortlisted using a keyword search related to EV powertrain in the ScienceDirect and Scopus databases. The review focused on the related literatures published from 2018 onwards. The publications were reviewed in terms of the methodologies applied to optimize the powertrain for efficiency and driving performance. Next, the significant findings from these literatures were discussed and compared. Finally, based on the review, several future key research areas in EV powertrain efficiency and performance are highlighted.

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Section: Main Components Of Ev Powertrainsmentioning

confidence: 99%

Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

et al. 2022

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“…ITH the global drive of pursuing "Net Zero" to deal with climate change and emissions reduction, the electrification trend is irreversible within the transportation industry [1][2]. Many countries and automotive companies have set timelines to terminate the sales of conventional vehicles within the next decade [3].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Design Guideline of Hairpin Windings for High Power Density Electric Vehicle Traction Motors

Zou

Gerada

Rocca

et al. 2022

IEEE Trans. Transp. Electrific.

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The rapidly increasing demand on power density levels of electric vehicle (EV) drive systems is pushing the boundaries of traction motor performance. Hairpin windings are becoming a popular option for EV motors due to their reduced DC losses and improved heat dissipation capability when compared to traditional random windings. In this paper, a comprehensive design approach of hairpin winding layouts is firstly presented. The flexibility and limitation of end-winding patterns is thoroughly investigated in terms of basic pin connections, special jumpers, transposition, parallel branches, terminal positions, phase shift, winding pitches as well as slot-pole combinations. To address the challenge of much reduced practical layout options with increased slot number per pole per phase, two novel hairpin winding designs are proposed. A 160kW, 18000rpm PM traction motor featuring the new winding layout with 54-slot, 6-pole is developed using a multidomain design platform which puts special focus on the conductor size optimization. The advantages of the designed motor are clearly revealed by comparison with the more traditional 48-slot, 8-pole counterpart. Finally, a corresponding stator prototype with the proposed hairpin winding is built to validate its manufacturability.

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“…As a result, electric motors in the automotive sector are presently undergoing extensive study in order to enhance their qualities and enable the use of electric or hybrid electric cars. Three-phase motors are the most-often-utilized electric motors in electric cars [1][2][3]. The reason for this is that they have been meticulously examined, both in terms of structure and control and functioning.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Properties of a Five-Phase Induction Motor in the Introduction of New Fault-Tolerant Control

2022

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Multiphase electric motors in cooperation with power semiconductor converters belong to the future of electric drives. This is because of their better properties compared to three-phase motors, such as better fault tolerance. How a multiphase motor will behave in a fault state is very important when using such motors in EV and HEV. This is the basis of the research in this article; we investigate the options for operating a five-phase motor in a fault condition in order to improve the drive qualities during fault operation. The complete mathematical expressions of the five-phase induction motor model in the normal operation as well as in fault operation and also the control modification to improve the properties of the drive are presented. The new five-phase field-oriented control is next described, which improves the drive qualities in four-phase operation and is the first fundamental aspect of the study. Another important aspect of the project is the development of a specific control on a real motor, followed by measurements of properties of a five-phase motor in normal and fault operation of one phase without and with control modification to enhance drive characteristics. The qualities and appropriateness of employing a five-phase motor as a drive in EV and HEV are then determined by comparing these results. Finally, a comparison of motor attributes is shown with and without control adjustment.

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Electric Drive Technology Trends, Challenges, and Opportunities for Future Electric Vehicles

Cited by 278 publications

References 50 publications

Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

A Comprehensive Design Guideline of Hairpin Windings for High Power Density Electric Vehicle Traction Motors

Investigation of the Properties of a Five-Phase Induction Motor in the Introduction of New Fault-Tolerant Control

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