Precise Vehicle Location Detection Method Using a Wireless Power Transfer (WPT) System

Shin, Yujun; Hwang, Karam; Park, Jaehyoung; Kim, Dong-Wook; Ahn, Seungyoung

doi:10.1109/tvt.2018.2885942

Cited by 44 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The output power of the AC part of the circuit is obtained as (12). According to (5), ( 6), ( 10), (11), and ( 12), efficiency η can be calculated as (13).…”

Section: Ipt System Modeling and Formulationsmentioning

confidence: 99%

“…The current control flowchart is presented in Fig. 11 simulations are carried out at two different speeds: 10 and 20 m/s. It is assumed that the vehicle reaches the charger and crosses over it at a constant speed.…”

Section: Current and Power Controlmentioning

confidence: 99%

“…There are many applications for WPT, including cell phones, medical implants, and electric vehicles (EVs) charging [4,8]. In addition to electric shock risks reduction and ease of use for the disabled or the elderly, WPT makes it possible to charge EVs on the go, which is called dynamic wireless charging (DWC) [9][10][11]. With DWC realization, the range anxiety problem could be eliminated [12,13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

et al. 2021

View full text Add to dashboard Cite

Tunable Self-Oscillating Switching (TSOS) methods are a robust solution for tuning of Inductive Power Transfer (IPT) systems. However, they require deep analysis to be an appropriate choice for Dynamic Wireless Charging (DWC) systems. In this paper, the optimal operation point of TSOS in the maximum power transfer, efficiency, and Zero Voltage Switching (ZVS) realization perspectives are determined based on sensitivity analysis for DWC of Electric Vehicles (EVs). In the sensitivity analysis, all the possible states of the coupling factor and state of charge (SOC) are considered as system variables. Moreover, a new phasor modeling for constant voltage (battery) loads is proposed. The performance of this model is quite different from the conventional static model for the loads. Moreover, to limit the current of the charger under light couplings, a simple hysteresis controller is employed. A setpoint is proposed based on the sensitivity analysis method to transfer maximum energy in misaligned conditions. The proposed setpoint increases transferred energy and energy efficiency while limits the current of the charger. To analyze this method, simulation is done in the Simulink/MATLAB, and to verify the results, a laboratory prototype is implemented.

show abstract

“…The output power of the AC part of the circuit is obtained as (12). According to (5), ( 6), ( 10), (11), and ( 12), efficiency η can be calculated as (13).…”

Section: Ipt System Modeling and Formulationsmentioning

confidence: 99%

Section: Current and Power Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The WPT consists of power-transmitting coils on the parking lot floor and power-receiving coils for the car, and to be charged, the EV must precisely recognize the car location within the parking area and align the two sets of coils to centimeter-level accuracy ( Rozman et al, 2019 ). Therefore, for the WPT system to be combined with an autonomous parking system, precise localization technology is required in the parking area ( Tian et al, 2020 ; Shin et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Ultrawideband (UWB)-based precise short-range localization for wireless power transfer to electric vehicles in parking environments

Lee

2021

PeerJ Computer Science

View full text Add to dashboard Cite

As the necessity of wireless charging to support the popularization of electric vehicles (EVs) emerges, the development of a wireless power transfer (WPT) system for EV wireless charging is rapidly progressing. The WPT system requires alignment between the transmitter coils installed on the parking lot floor and the receiver coils in the vehicle. To automatically align the two sets of coils, the WPT system needs a localization technology that can precisely estimate the vehicle’s pose in real time. This paper proposes a novel short-range precise localization method based on ultrawideband (UWB) modules for application to WPT systems. The UWB module is widely used as a localization sensor because it has a high accuracy while using low power. In this paper, the minimum number of UWB modules consisting of two UWB anchors and two UWB tags that can determine the vehicle’s pose is derived through mathematical analysis. The proposed localization algorithm determines the vehicle’s initial pose by globally optimizing the collected UWB distance measurements and estimates the vehicle’s pose by fusing the vehicle’s wheel odometry data and the UWB distance measurements. To verify the performance of the proposed UWB-based localization method, we perform various simulations and real vehicle-based experiments.

show abstract

“…1, the pickup position must be sensed and sent to the driving system. So far, studies have shown some promising results in the realm of pickup position estimation by directly measuring WPT coil-compensator current and voltages [24][25][26][27], or with the use of additional sensing systems [28,29], and yet some more accurate and fast techniques are being investigated. Position estimation is important particularly in EVs to make them smarter, especially for auto piloting.…”

Section: Introductionmentioning

confidence: 99%

Expandable N-Legged Converter to Drive Closely Spaced Multitransmitter Wireless Power Transfer Systems for Dynamic Charging

Farajizadeh

Vilathgamuwa

Jovanović

et al. 2020

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

Expandable and flexible wireless power transfer (WPT) systems have been in demand in numerous industry applications, especially for dynamic chargers in electric vehicles. Those systems, however, brings about certain technical issues such as modulation technique and topology of the transmitter-side, and transferred power profile of the transmitters. In this paper, a new converter topology to drive closely spaced segmented Dynamic Wireless Power Transfer (DWPT) systems is proposed. The proposed converter can be expanded to cater for different number of transmitters, and it can provide a uniform transferred power profile throughout the path of transmitter coils, known as track. Furthermore, this study focuses on analyzing the operation of the converter and the effect of closely spaced transmitters over its operation. To show the effectiveness of the proposed topology and its modulation technique, the converter is simulated and experimentally tested using a laboratory prototype. The results are compared and analyzed, and their close agreement shows the validity of the proposed technique.

show abstract

Precise Vehicle Location Detection Method Using a Wireless Power Transfer (WPT) System

Cited by 44 publications

References 24 publications

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

Ultrawideband (UWB)-based precise short-range localization for wireless power transfer to electric vehicles in parking environments

Expandable N-Legged Converter to Drive Closely Spaced Multitransmitter Wireless Power Transfer Systems for Dynamic Charging

Contact Info

Product

Resources

About