scholarly journals Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

2022 ◽  
Vol 7 (1) ◽  
pp. 6
Author(s):  
Sivakumar Rajagopal ◽  
Rameez Pulapparambil Vallikkattil ◽  
M. Mohamed Ibrahim ◽  
Dimiter Georgiev Velev
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Electrode Materials ◽  
High Efficiency ◽  
Low Cost ◽  
Current Collector ◽  
Manufacturing Strategy ◽  
Promising Alternative ◽  
Hybrid Electric ◽  
Materials Used

For hybrid electric vehicles, supercapacitors are an attractive technology which, when used in conjunction with the batteries as a hybrid system, could solve the shortcomings of the battery. Supercapacitors would allow hybrid electric vehicles to achieve high efficiency and better power control. Supercapacitors possess very good power density. Besides this, their charge-discharge cycling stability and comparatively reasonable cost make them an incredible energy-storing device. The manufacturing strategy and the major parts like electrodes, current collector, binder, separator, and electrolyte define the performance of a supercapacitor. Among these, electrode materials play an important role when it comes to the performance of supercapacitors. They resolve the charge storage in the device and thus decide the capacitance. Porous carbon, conductive polymers, metal hydroxide, and metal oxides, which are some of the usual materials used for the electrodes in the supercapacitors, have some limits when it comes to energy density and stability. Major research in supercapacitors has focused on the design of stable, highly efficient electrodes with low cost. In this review, the most recent electrode materials used in supercapacitors are discussed. The challenges, current progress, and future development of supercapacitors are discussed as well. This study clearly shows that the performance of supercapacitors has increased considerably over the years and this has made them a promising alternative in the energy sector.

Analysis of Current Hybrid-Electric Automobile Drivetrains and Proposal of an Alternative Powertrain

2020 ◽  
Author(s):  
Andrew Ahn ◽  
Thomas S. Welles ◽  
Benjamin Akih-Kumgeh
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicle ◽  
Internal Combustion Engines ◽  
Hybrid Electric Vehicles ◽  
Global Climate ◽  
Low Cost ◽  
Fuel Efficiency ◽  
Combustion Engines ◽  
Hybrid Electric ◽  
Hybrid Configuration

Abstract Byproducts of fossil fuel combustion contribute to negative changes in the global climate. Specifically, emissions from automobiles are a major source of greenhouse gas pollution. Efforts to minimize these harmful emissions have led to the development and sustained improvement of hybrid drivetrains in automobiles. Despite many advancements, however, hybrid systems still face substantial challenges which bear on their practicality, performance, and competitive disadvantage in view of the low cost of today’s traditional internal combustion engines. These imperfections notwithstanding, hybrid electric vehicles have the potential to play significant roles in the future as cleaner transportation solutions. Actualization of this potential will depend on the ability of hybrid-electric vehicles to minimize their disadvantages while increasing their positive features relative to traditional combustion engines. This research investigates current hybrid electric architectures in automobiles with the aim of suggesting an alternative, more efficient hybrid configuration that utilizes current technology. This is completed by utilizing an iterative design process to compare how various components of existing hybrids can be combined and/or improved to develop a single, efficient and cohesive system that performs comparably to or surpasses existing ones in fuel efficiency and low emissions in all driving conditions. A critical and comparative analysis is provided based on current hybrid-electric vehicle architectures as well as a plausible alternative.

scholarly journals Social and municipal influences on intention to purchase electric and hybrid electric vehicles in London Ontario, CA

2021 ◽  
Vol 2021 ◽  
pp. 69-88
Author(s):  
Jordan Fuller ◽  
Jamie Baxter ◽  
Jamie Skimming
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Low Cost ◽  
Low Carbon ◽  
Municipal Governments ◽  
Intent To Purchase ◽  
Intention To Purchase ◽  
The Social ◽  
Hybrid Electric ◽  
Vehicle Purchase

We conducted a case study in London, Ontario to identify factors that influence decisions to purchase low carbon vehicles including what role municipal governments might play in encouraging low carbon vehicle purchase decisions. As part of a city-university partnership, this study reports (n = 257) results from a mail-out survey.  We test mainly whether social influences and mechanisms under municipal control predict intent to purchase electric vehicles (EV) and hybrid electric vehicles (HEV).  Both proximal social influencers (family and friends) (.179**, .393**) and distal social influencers (.219**, .142*) predict intent to purchase EV and HEV respectively.  City information sessions (.161** EV) and City promotion (.141* HEV) significantly influence intentions, while City-provided EV parking and charging are not. While municipalities may find other areas with greater impact on GHG reductions, the findings support promoting the social aspects of EV and HEV purchasing and providing relatively low-cost promotion/events.

scholarly journals TC48: A low-cost 48 V integrated drive for mild hybrid electric vehicles

2019 ◽  
Vol 2019 (17) ◽  
pp. 4590-4594 ◽  
Author(s):  
Dave Winterborne ◽  
Muez Shiref ◽  
Stuart Snow ◽  
Volker Pickert
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Low Cost ◽  
Hybrid Electric ◽  
Mild Hybrid

High Efficiency Electromagnetic Torque Converter for Hybrid Electric Vehicles

2016 ◽  
Vol 5 (2) ◽  
pp. 228-236 ◽  
Author(s):  
Takao Watanabe ◽  
Eiji Tsuchiya ◽  
Masaki Ebina ◽  
Yasumitsu Osada ◽  
Tomoyuki Toyama ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
High Efficiency ◽  
Torque Converter ◽  
Electromagnetic Torque ◽  
Hybrid Electric

scholarly journals DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends

Energies ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1569 ◽  
Author(s):  
Sajib Chakraborty ◽  
Hai-Nam Vu ◽  
Mohammed Mahedi Hasan ◽  
Dai-Duong Tran ◽  
Mohamed El Baghdadi ◽  
...  
Keyword(s):  
Low Power ◽  
Electric Vehicles ◽  
Electromagnetic Interference ◽  
Hybrid Electric Vehicles ◽  
High Efficiency ◽  
Switching Frequency ◽  
Fast Charging ◽  
Converter Topologies ◽  
Hybrid Electric ◽  
Charging Stations

This article reviews the design and evaluation of different DC-DC converter topologies for Battery Electric Vehicles (BEVs) and Plug-in Hybrid Electric Vehicles (PHEVs). The design and evaluation of these converter topologies are presented, analyzed and compared in terms of output power, component count, switching frequency, electromagnetic interference (EMI), losses, effectiveness, reliability and cost. This paper also evaluates the architecture, merits and demerits of converter topologies (AC-DC and DC-DC) for Fast Charging Stations (FCHARs). On the basis of this analysis, it has found that the Multidevice Interleaved DC-DC Bidirectional Converter (MDIBC) is the most suitable topology for high-power BEVs and PHEVs (> 10kW), thanks to its low input current ripples, low output voltage ripples, low electromagnetic interference, bidirectionality, high efficiency and high reliability. In contrast, for low-power electric vehicles (<10 kW), it is tough to recommend a single candidate that is the best in all possible aspects. However, the Sinusoidal Amplitude Converter, the Z-Source DC-DC converter and the boost DC-DC converter with resonant circuit are more suitable for low-power BEVs and PHEVs because of their soft switching, noise-free operation, low switching loss and high efficiency. Finally, this paper explores the opportunity of using wide band gap semiconductors (WBGSs) in DC-DC converters for BEVs, PHEVs and converters for FCHARs. Specifically, the future roadmap of research for WBGSs, modeling of emerging topologies and design techniques of the control system for BEV and PHEV powertrains are also presented in detail, which will certainly help researchers and solution engineers of automotive industries to select the suitable converter topology to achieve the growth of projected power density.

scholarly journals Architecture Optimization of Hybrid Electric Vehicles with Future High-Efficiency Engine

Energies ◽  
2018 ◽  
Vol 11 (5) ◽  
pp. 1148 ◽  
Author(s):  
Jinlong Hong ◽  
Liangchun Zhao ◽  
Yulong Lei ◽  
Bingzhao Gao
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
High Efficiency ◽  
Hybrid Electric ◽  
Architecture Optimization ◽  
Efficiency Engine
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