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Energies
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Energy Efficiency of Electric Vehicle Charging Process
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Energy Efficiency of Electric Vehicle Charging Process

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".

Deadline for manuscript submissions: closed (10 November 2023) | Viewed by 2518

Special Issue Editors

Prof. Dr. Liqiang Jin

E-Mail Website
Guest Editor
College of Automotive Engineering, Jilin University, Changchun 130022, China
Interests: torque vectoring control and energy consumption for motorized wheels
Dr. Feng Xiao

E-Mail Website
Guest Editor
State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
Interests: key technologies of new energy vehicles; computer vision; new energy vehicle electric wheel
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Automobile electrification is the inevitable direction of automobile industry transformation. Vehicle energy is converted from fossil energy to electric energy, and energy-bearing devices are converted from oil tanks to batteries. Charging performance is an important factor affecting the comprehensive performance of electric vehicles. Charging efficiency affects the economy of the whole vehicle, and charging speed affects the utilizable efficiency of the EV. Ultrahigh-speed charging is an important development direction of electric vehicle charging technology. In terms of on-board energy use, vehicle braking energy recovery and charging to the battery is an important way to improve the energy utilization rate. At present, when the charging utilization rate of electric braking is low and high-intensity braking, strong current charging also poses new challenges to battery charging performance. Efficient braking energy recovery can effectively improve the driving range of electric vehicles.

This Special Issue focuses on topics related to the energy cycle on electric vehicles, management and control of charging processes of EVs, efficient charging of electric vehicles, ultrahigh-speed charging technology of electric vehicles, energy management of electric vehicles, energy-saving paths and control of electric vehicles, recovery and control of braking energy of electric vehicles, etc.

Prof. Dr. Liqiang Jin
Dr. Feng Xiao
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  •  battery efficiency
  •  charging technology
  •  regenerative braking
  •  high-current charging
  •  superspeed charging

Published Papers (2 papers)

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Research

13 pages, 812 KiB  
Article
Power Measurement Using Adaptive Chirp Mode Decomposition for Electrical Vehicle Charging Load
by Haili Ding, Rui Tian, Jinfei Wang and Xiaomei Yang
Energies 2023, 16(14), 5305; https://doi.org/10.3390/en16145305 - 11 Jul 2023
Cited by 1 | Viewed by 631
Abstract
Due to nonlinear components in the charging piles of electric vehicles, harmonics and nonstationary signals in the electric vehicle charging load bring voltage and current distortion, seriously affecting the accuracy of the power-related calculation in nonsinusoidal environments. This paper proposed a new approach [...] Read more.
Due to nonlinear components in the charging piles of electric vehicles, harmonics and nonstationary signals in the electric vehicle charging load bring voltage and current distortion, seriously affecting the accuracy of the power-related calculation in nonsinusoidal environments. This paper proposed a new approach to calculate the active power and root mean square values from decomposed components using the adaptive chirp mode decomposition (ACMD) method on voltage and current. The advantage of the ACMD-based method is that it correctly provides the power-related quantities of harmonics or nonstationary components for the electric vehicle charging load. The performance of the proposed method was verified using synthetic signals and simulation tests. The experimental results presented better estimations for each quantity defined in IEEE Standard 1459-2010, compared with the discrete wavelet transform approach. Full article
(This article belongs to the Special Issue Energy Efficiency of Electric Vehicle Charging Process)
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17 pages, 4262 KiB  
Article
Study on Top Hierarchy Control Strategy of AEBS over Regenerative Brake and Hydraulic Brake for Hub Motor Drive BEVs
by Yu Yang, Chao Wang, Shujun Yang and Xianzhi Tang
Energies 2022, 15(22), 8382; https://doi.org/10.3390/en15228382 - 09 Nov 2022
Cited by 2 | Viewed by 1256
Abstract
A hub motor is an effective drive system for Battery Electric Vehicles (BEVs). However, due to limitations on packaging and cost, there are few applications in which hub motors are taken as the only actuators for a brake vehicle. Most applications involve a [...] Read more.
A hub motor is an effective drive system for Battery Electric Vehicles (BEVs). However, due to limitations on packaging and cost, there are few applications in which hub motors are taken as the only actuators for a brake vehicle. Most applications involve a Regenerative Braking System (RBS) combined with a Hydraulic Braking System (HBS). In this paper, a top hierarchy Advanced Emergency Braking System (AEBS) controller is designed in Matlab/Simulink and State-flow, including functionalities of basic emergency braking, brake force distribution between front and rear wheels, anti-lock braking and coordination between RBS and HBS based on Model Predictive Control (MPC); a Seven Degrees of Freedom (DOF) BEV chassis model is constructed and rear-end crash test scenarios are created in Carsim with a high and low road adhesion coefficient. A series of comparison tests show that not only are the stopping distances between the ego vehicle and target vehicle shorter, but also the braking torques, longitudinal slip ratio and rotation speed of each wheel are well controlled without wheel locking. To sum up, in addition to meeting the AEBS requirements of avoiding a rear-end collision, the control strategy developed in this paper also levels up braking performance and enhances vehicle stability on both high-mu and low-mu roads for BEVs driven by a hub motor independently. Full article
(This article belongs to the Special Issue Energy Efficiency of Electric Vehicle Charging Process)
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