Power Electronics and Motor Drives in Electric, Hybrid Electric, and Plug-In Hybrid Electric Vehicles

Emadi, Ali; Lee, Young Joo; Rajashekara, Kaushik

doi:10.1109/tie.2008.922768

Cited by 1,191 publications

(433 citation statements)

References 39 publications

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“…transmission, motor/inverter, and battery. Based on current BEV designs we consider a single-gear transmission, permanent magnet synchronous electric motor, and a Li-ion battery [17,22,23,24,25].…”

Section: Energy Consumption and Influence Of Vehicle Massmentioning

confidence: 99%

Optimal Lightweighting in Battery Electric Vehicles

Hofer

Wilhelm

Schenler

2012

WEVJ

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This paper presents an analytic solution to find the optimal amount of lightweighting in a battery electric vehicle (BEV). The additional cost of lightweighting is traded off against the cost savings due to the smaller battery and motor required at constant performance and range. Current technology cost estimates indicate that for a medium sized BEV, optimal glider mass reduction is on the order of 450 kg in 2012 leading to estimated manufacturing cost reductions of 4.9%. Declining powertrain costs are expected to reduce the importance of lightweighting in minimizing BEV cost in the future, and rising electricity costs to increase the gap between the optimal solutions based on minimizing manufacturing versus total costs. The results are strongly dependent on the future development of lightweighting, battery, and electricity costs. The sensitivity of the optimal mass reduction to these critical parameters has been evaluated, and is shown to increase over time.

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Section: Energy Consumption and Influence Of Vehicle Massmentioning

confidence: 99%

Optimal Lightweighting in Battery Electric Vehicles

Hofer

Wilhelm

Schenler

2012

WEVJ

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“…[2][3][4] The pure electric vehicle (PEV) features zero emissions, whilst the disadvantages of high price and low energy density. The energy storage technology in battery packs in particular is still the bottleneck preventing the widespread of PEVs.…”

Section: Introductionmentioning

confidence: 99%

Power distribution of a co-axial dual-mechanical-port flux-switching permanent magnet machine for fuel-based extended range electric vehicles

2017

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In this paper, power distribution between the inner and outer machines of a co-axial dual-mechanical-port flux-switching permanent magnet (CADMP-FSPM) machine is investigated for fuel-based extended range electric vehicle (ER-EV). Firstly, the topology and operation principle of the CADMP-FSPM machine are introduced, which consist of an inner FSPM machine used for high-speed, an outer FSPM machine for low-speed, and a magnetic isolation ring between them. Then, the magnetic field coupling of the inner and outer FSPM machines is analyzed with more attention paid to the optimization of the isolation ring thickness. Thirdly, the power-dimension (PD) equations of the inner and outer FSPM machines are derived, respectively, and thereafter, the PD equation of the whole CADMP-FSPM machine can be given. Finally, the PD equations are validated by finite element analysis, which supplies the guidance on the design of this type of machines. © 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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“…Electric vehicles (EVs) as a solution to environment and energy problems have stimulated much research and development intended to make EVs practical [1][2][3]. However, EV performance is limited by the energy storage system.…”

Section: Introductionmentioning

confidence: 99%

An Improved DTC for In-wheel BLDC motors in Micro All-electric Vehicles

Liu

Zhang

2016

Automatika

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Original scientific paperThe micro all-electric vehicle pertaining to this study is rear-driven, with motors in the left and right rear wheels. The motors are brushless dc (BLDC) using Hall effect sensors with a trapezoidal back-electromotive force. The control system is developed by using a digital signal processor. To thoroughly utilize the fast torque generation feature of BLDC motors, direct torque control (DTC) is preferable, but with conventional DTC, dead-time must be added. This paper proposes an improved DTC, where the switching device operating principle is equivalent to that of a unipolar pulse width modulation (PWM) technique named PWM-ON. Dead-time is not required, and switching losses are reduced. Further analysis showed that under the improved DTC the dc supply took up only the load current, confirming that there was no return of load energy to the dc supply, which protects the batteries. Experimental results are given to confirm validity. Key words: BLDC, dead-time, DTC, electrical vehicle, micro all-electric vehiclesUnaprije enje direktnog upravljanja momentom istosmjernog motora bezčetkica u kotaču za mala električna vozila. Električno malo vozilo razmatrano u ovomečlanku ima pogon na stražnje kotače, gdje su motori smješteni u lijevi i desni stražnji kotač. Motori su istosmjerni bezčetkica (BLCD) te koriste senzore zasnovane na Hallovom efektu s trapezoidalnom elektromotornom silom. Upravljački sustav razvijen je na digitalnom raču-nalu. Kako bi se iskoristila mogućnost stvaranja bzrog momenta, što je jedno od prednosti BLCD motora, preferira se direktno upravljanje momentom (DTC), ali kod konvencionalnog DTC-a potrebno je dodati mrtvo vrijeme. U ovomečlanku je predložena unaprije ena verzija DTC-a, gdje princip rada invertora isti kao i kod unipolarne pulsnoširinske modulacije (PWM-ON). U ovome slučaju mrtvo vrijeme nije potrebno te se smanjuju gubici u invertoru. Daljnja analiza je pokazala da s unaprije enim DTC-om nema povratka energije, što štiti baterij. Eksperimentalni rezultati su dani kako bi se potvrdila ispravnost pristupa.Ključne riječi: istosmjerni motor bezčetkica, mrtvo vrijeme, direktno upravljanje momentom, električna vozila, mala električna vozila

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Power Electronics and Motor Drives in Electric, Hybrid Electric, and Plug-In Hybrid Electric Vehicles

Cited by 1,191 publications

References 39 publications

Optimal Lightweighting in Battery Electric Vehicles

Optimal Lightweighting in Battery Electric Vehicles

Power distribution of a co-axial dual-mechanical-port flux-switching permanent magnet machine for fuel-based extended range electric vehicles

An Improved DTC for In-wheel BLDC motors in Micro All-electric Vehicles

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