Multi-Load Mode Analysis for Electric Vehicle Wireless Supply System

Jiang, Cheng; Sun, Yong; Wang, Zhihui; Tang, Chunsen

doi:10.3390/en11081925

Cited by 2 publications

(5 citation statements)

References 16 publications

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“…FC gas EF tank CV gas is well-to-tank emission, and FC gas EF gas is tank-to-wheel emission. CO 2 emission of the long-range drivable electric vehicle is calculated by Equations ( 1) and (10). CO 2 emission of the DWPT electric vehicle is also calculated by Equations ( 1) and (10); however, the driving energy of mode drive E mdrive is changed due to WPT efficiency.…”

Section: Comparison Of Co 2 Emissionmentioning

confidence: 99%

“…CO 2 emission of the long-range drivable electric vehicle is calculated by Equations ( 1) and (10). CO 2 emission of the DWPT electric vehicle is also calculated by Equations ( 1) and (10); however, the driving energy of mode drive E mdrive is changed due to WPT efficiency. Considering the WPT efficiency, E mdrive is described as shown below in this study.…”

Section: Comparison Of Co 2 Emissionmentioning

confidence: 99%

“…To solve these problems, WPT with magnetic resonance coupling was proposed in 2007 [6]. Therefore, some DWPT projects for passenger vehicles adopt magnetic resonance coupling for DWPT systems [7][8][9][10][11][12]. A DWPT system that may be adopted for both passenger vehicles and trucks [13] has been proposed.…”

Section: Introductionmentioning

confidence: 99%

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Potential for CO2 Reduction by Dynamic Wireless Power Transfer for Passenger Vehicles in Japan

et al. 2020

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In this study, a novel system named the third-generation wireless in-wheel motor (WIWM-3), which has a dynamic wireless power transfer (DWPT) system, is developed. It can extend the cruise range, which is one of the key specifications of electric vehicles. DWPT also reduces CO2 emission as the driving resistance is reduced due to light weight of the batteries. In this study, CO2 emission by an internal combustion vehicle, a long range drivable electric vehicle with the same cruise range, and an electric vehicle with WIWM-3 equipped with the DWPT system are analyzed using actual measurement data and calculated data based on actual measurement or specification data. A WPT system with WIWM-3 achieves 92.5% DC-to-DC efficiency as indicated by an actual measurement at the nominal position. Thus, the electric vehicle with DWPT can reduce up to 62% of CO2 emission in internal combustion vehicles, and the long-range drivable vehicle emits 17% more CO2 than the electric vehicle with DWPT. Moreover, it is expected that by 2050, electric vehicles with DWPT will reduce CO2 emissions from internal combustion vehicles by 95% in Japan. DWPT systems make electric vehicles more sustainable and, hence, more acceptable for consumers.

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Section: Comparison Of Co 2 Emissionmentioning

confidence: 99%

Section: Comparison Of Co 2 Emissionmentioning

confidence: 99%

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Potential for CO2 Reduction by Dynamic Wireless Power Transfer for Passenger Vehicles in Japan

et al. 2020

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“…Wireless power transfer (WPT) systems have become a widely used technology. They are used to transfer the power for many applications in many fields, such as electric vehicle (EV) charging [1][2][3], plug-in hybrid electric vehicles (PHEVs) [4], implantable medical devices (IMDs) [5], consumer electronics [6], autonomous underwater vehicles (AUVs) [7], and robotic systems [8]. Wireless power technology is also used in communication networks [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…In EV power charging, the resonators are designed as circular, planar, or square coils [26]. Moreover, dipole-type coils with cores [27], defected ground structures (DGS) [28], cross-shape structures [29], and L-shaped coils [1,30] are given. Many other structures are reported in [31].…”

Section: Introductionmentioning

confidence: 99%

Free Angular-Positioning Wireless Power Transfer Using a Spherical Joint

Houran

Yang

2018

Energies

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Many studies have investigated resonator structures and winding methods. The aims of this paper are as follows. First, the paper proposes an optimized winding model for a bio-inspired joint for a wireless power transfer (WPT) system. The joint consists of a small spherical structure, which rotates inside a hemispherical structure. The transmitter coil (Tx) is wound on the hemisphere structure, and the receiver coil (Rx) is wound on the small sphere. The power is transferred while rotating Rx over a wide range of angular misalignment. In addition, the algorithm design of the proposed winding method is given to get an optimized model. Moreover, the circuit analysis of the WPT system is discussed. Second, the magnetic field density is investigated considering a safety issue, which is linked to human exposure to electromagnetic fields (EMFs). Moreover, EMF mitigation methods are proposed and discussed in detail. Finally, the simulation results are validated by experiments, which have confirmed that the proposed winding method allows the system to rotate up to 85 degrees and achieve an efficiency above 86%. The proposed winding method for the WPT system can be a good technique for some robotic applications or a future replacement of the human joint.

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Multi-Load Mode Analysis for Electric Vehicle Wireless Supply System

Cited by 2 publications

References 16 publications

Potential for CO2 Reduction by Dynamic Wireless Power Transfer for Passenger Vehicles in Japan

Potential for CO2 Reduction by Dynamic Wireless Power Transfer for Passenger Vehicles in Japan

Free Angular-Positioning Wireless Power Transfer Using a Spherical Joint

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