scholarly journals Prospects for Electric Vehicles

2020 ◽  
Vol 12 (14) ◽  
pp. 5813
Author(s):  
Jack N. Barkenbus
Keyword(s):  
Climate Change ◽  
Research And Development ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Government Support ◽  
Market Forces ◽  
Consumer Interest ◽  
Fundamental Forces ◽  
Over Time

The transformation from conventional vehicles to electric vehicles is underway, but its timeline is still uncertain. The battle against climate change provides the essential backdrop, leading governments to encourage this transformation by providing both consumer incentives to purchase electric vehicles and by establishing regulations requiring automakers to produce them. Behind this prodding are a set of fundamental forces that both encourage and discourage consumer interest, as set forth in the text. Fortunately, intensive battery research and development is proceeding that should alter market forces and make electric vehicles more attractive to segments of the population not now in the market for an electric vehicle. Hence, even if the timeline for battery improvement cannot be predicted with certainty, continued government support, and upstart automakers, such as Tesla, should ensure that the transformation will proceed over time.

Electric Vehicle Forecasting for China from 2011 to 2050 Based on Scenario Analysis

2011 ◽  
Vol 128-129 ◽  
pp. 846-849
Author(s):  
Shi Jun Fu ◽  
Yu Long Ren
Keyword(s):  
Climate Change ◽  
Internal Combustion Engine ◽  
Electric Vehicle ◽  
Growth Model ◽  
Electric Vehicles ◽  
Scenario Analysis ◽  
Combustion Engine ◽  
Growth Period ◽  
The Difference ◽  
New Industry

With climate change being growing concerns, the development of EV (Electric Vehicles) has taken on an accelerated pace. This paper is to forecast China’s EV stock from 2011 to 2050 based on the double species growth model. We elaborate two orbits according to two scenarios: with vehicle stock being 200 and 300 per thousand people at 2050. These orbits reveals that, China’s EVs development has a golden stage which will last 10 to 11 years; And before this booming stage, there is a slowly growth period which will last 7 to 8 years. Furthermore, under each scenario, the difference between EVs and ICEVs (Internal Combustion Engine Vehicles) stock at 2030 is 4.69% to 6.77%, which confirms that China’s ambitious EVs program may be realized if government sets strong policy supports on this new industry persistently.

X-in-the-Loop technology for research and development of electric vehicles

Trudy NAMI ◽  
2021 ◽  
pp. 6-14
Author(s):  
I. A. Kulikov ◽  
K. E. Karpukhin ◽  
R. Kh. Kurmaev ◽  
V. G. Ivanov
Keyword(s):  
Research And Development ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Loop System ◽  
Global Network ◽  
Practical Significance ◽  
Physical Testing ◽  
Development Technology ◽  
New Research ◽  
Physical Tools

Introduction (problem statement and relevance). The article describes an X-in-the-Loop system intended for cyber-physical tests of electric vehicle's chassis components. The system allows connecting and synchronizing laboratories located in different geographic regions.The purpose of the study is to elaborate an X-in-the-Loop system allowing to perform geographically-scattered cyber-physical testing of the components belonging to an electric vehicle chassis.Methodology and research methods. The elaboration of the X-in-the-Loop system involves methods of cyber-physical testing whose functionality is extended by means of connecting and synchronizing the tested objects via a global network.Scientific novelty and results. A new research and development technology has been proposed for electric vehicles allowing for cooperation of geographically scattered laboratories within a real-time coherent environment that synchronizes tests of the electric vehicle components (both hardware and software) belonging to those laboratories.The practical significance. The proposed technology provides researchers and developers in the field of electric vehicles with advanced cyber-physical tools allowing them to increase the effectiveness of their cooperative work and shorten the time needed for producing development or research results.

scholarly journals The politics of renewable power in Spain

2020 ◽  
Vol 9 (1) ◽  
pp. 5-25
Author(s):  
John S Duffield
Keyword(s):  
Public Support ◽  
Private Investment ◽  
Government Support ◽  
Market Forces ◽  
Fundamental Change ◽  
Role Of Government ◽  
Renewable Power ◽  
Generating Capacity ◽  
Over Time

Government support for renewable power in Spain has varied over time. After fostering a boom in the first decade of the 2000s, public support dried up in the early 2010s before making a reappearance in the last several years. This paper details and explains the fluctuating political fortunes of renewable power in Spain. It argues that the recent revival of support for renewable power should no come as no surprise. Rather, it reflects a reassertion of the underlying imperatives that prompted support by governments of different parties in previous years. Nevertheless, the role of government in promoting renewable power is now undergoing a fundamental change, as it shifts from directly subsidizing new generating capacity to removing barriers that might discourage private investment and facilitating the operation of market forces.

scholarly journals Are Electric Vehicle Subsidies Becoming More Impactful Over Time?

2021 ◽  
Author(s):  
Tamara Sheldon ◽  
Rubal Dua ◽  
Omar Al Harbi
Keyword(s):  
United States ◽  
Air Pollution ◽  
Greenhouse Gas ◽  
Federal Government ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
The United States ◽  
Federal State ◽  
Local Air Pollution ◽  
Over Time

Various subsidies for plug-in electric vehicles (PEVs) have been implemented worldwide at the federal, state and regional levels. These subsidies aim to promote PEV adoption to help reduce both local air pollution and greenhouse gas emissions (Hardman 2019). In the United States (U.S.), the federal government began subsidizing PEVs in 2010.

Cultivating Ice over Time: On the Idea of Timeless Knowledge and Places in the Himalayas

1969 ◽  
Vol 58 (2) ◽  
pp. 193-210 ◽  
Author(s):  
Karine Gagné
Keyword(s):  
Climate Change ◽  
Sense Of Community ◽  
Local Knowledge ◽  
Local Communities ◽  
International Organisations ◽  
Change Over Time ◽  
Local Populations ◽  
Close Study ◽  
Indian Himalayas ◽  
Over Time

Assumptions that local communities have an endogenous capacity to adapt to climate change stemming from time-tested knowledge and an inherent sense of community that prompts mobilisation are becoming increasingly common in material produced by international organisations. This discourse, which relies on ahistorical and apolitical conceptions of localities and populations, is based on ideas of timeless knowledge and places. Analysing the water-place nexus in Ladakh, in the Indian Himalayas, through a close study of glacier practices as they change over time, the article argues that local knowledge is subject to change and must be analysed in light of changing conceptions and experiences of place by the state and by local populations alike.

EV – Challenges In Going Electric

2018 ◽  
Author(s):  
Umanand L
Keyword(s):  
Mass Transport ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Research Activity ◽  
Considerable Research ◽  
Hybrid Electric

This article presents a frank and open opinion on the challenges that will be faced in moving towards an electric mass transport ecosystem. World over there is considerable research activity on electric vehicles and hybrid electric vehicles. There seems to be a global effort to move from an ICE driven ecosystem to electric vehicle ecosystem. There is no simple means to make this transition. This road is filled with hurdles and challenges. This paper poses and discusses these challenges and possible solutions for enabling EVs.

scholarly journals Optimized Strategic Planning of Future Norwegian Low-Voltage Networks with a Genetic Algorithm Applying Empirical Electric Vehicle Charging Data

Electricity ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 91-109
Author(s):  
Julian Wruk ◽  
Kevin Cibis ◽  
Matthias Resch ◽  
Hanne Sæle ◽  
Markus Zdrallek
Keyword(s):  
Genetic Algorithm ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Low Voltage ◽  
Network Planning ◽  
Voltage Regulation ◽  
Electric Vehicle Charging ◽  
Vehicle Charging ◽  
The Impact

This article outlines methods to facilitate the assessment of the impact of electric vehicle charging on distribution networks at planning stage and applies them to a case study. As network planning is becoming a more complex task, an approach to automated network planning that yields the optimal reinforcement strategy is outlined. Different reinforcement measures are weighted against each other in terms of technical feasibility and costs by applying a genetic algorithm. Traditional reinforcements as well as novel solutions including voltage regulation are considered. To account for electric vehicle charging, a method to determine the uptake in equivalent load is presented. For this, measured data of households and statistical data of electric vehicles are combined in a stochastic analysis to determine the simultaneity factors of household load including electric vehicle charging. The developed methods are applied to an exemplary case study with Norwegian low-voltage networks. Different penetration rates of electric vehicles on a development path until 2040 are considered.

scholarly journals The Structure and Optimal Gear Tooth Profile Design of Two-Speed Transmission for Electric Vehicles

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3736
Author(s):  
Jae-Oh Han ◽  
Won-Hyeong Jeong ◽  
Jong-Seok Lee ◽  
Se-Hoon Oh
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Automobile Industry ◽  
Bending Strength ◽  
Gear Tooth ◽  
Planetary Gear ◽  
Maximum Speed ◽  
Compact Structure ◽  
Simple Method ◽  
Paris Climate Agreement

As environmental regulations have been strengthened worldwide since the Paris Climate Agreement, the automobile industry is shifting its production paradigm to focus on eco-friendly vehicles such as electric vehicles and hydrogen-battery vehicles. Governments are banning fossil fuel vehicles by law and expanding the introduction of green vehicles. The energy efficiency of electric vehicles that use a limited power source called batteries depends on the driving environment. Applying a two-speed transmission to an electric vehicle can optimize average speed and performance efficiency at low speeds, and achieve maximum speed with minimal torque at high speeds. In this study, a two-speed transmission for an electric vehicle has been developed, to be used in a compact electric vehicle. This utilizes a planetary gear of a total of three pairs, made of a single module which was intended to enable two-speed. The ring gear was removed, and the carrier was used in common. When shifting, the energy used for the speed change is small, due to the use of the simple method of fixing the sun gear of each stage. Each gear was designed by calculating bending strength and surface durability, using JGMA standards, to secure stability. The safety factor of the gears used in the transmission is as follows: all gears have been verified for safety with a bending strength of 1.2 or higher and a surface pressure strength of 1.1 or higher. The design validity of the transmission was verified by calculating the gear meshing ratio and the reference efficiency of the gear. The transmission to be developed through the research results of this paper has a simple and compact structure optimized for electric vehicles, and has reduced shift shock. In addition, energy can be used more efficiently, which will help improve fuel economy and increase drive range.

scholarly journals Objective Rating of the Launch Behavior of Conventional, Hybrid and Electric Vehicles

2021 ◽  
Author(s):  
Christian Dorsch ◽  
Xiao Wang ◽  
Ferit Küçükay
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicle ◽  
Automatic Transmission ◽  
Major Influence ◽  
Important Process ◽  
Dual Clutch Transmission ◽  
Conventional Vehicle ◽  
Objective Rating ◽  
Dynamic Quality

AbstractThe calibration of conventional, hybrid and electric drivetrains is an important process during the development phase of any vehicle. Therefore, to optimize the comfort and dynamic behavior (known as driveability), many test drives are performed by experienced drivers during different driving maneuvers, e.g., launch, re-launch or gear shift. However, the process can be kept more consistent and independent of human-based deviations by using objective ratings. This study first introduces an objective rating system developed for the launch behavior of conventional vehicles with automatic transmission, dual-clutch transmission, and alternative drivetrains. Then, the launch behavior, namely comfort and dynamic quality, is compared between two conventional vehicles, a plug-in hybrid electric vehicle and a battery electric vehicle. Results show the benefits of pure electric drivetrains due to the lack of launch and shifting elements, as well as the usage of a highly dynamic electric motor. While the plug-in hybrid achieves a 10% higher overall rating compared to the baseline conventional vehicle, the pure electric vehicle even achieves a 21% higher overall rating. The results also highlight the optimization potential of battery electric vehicles regarding their comfort and dynamic characteristics. The transitions and the gradient of the acceleration build-up have a major influence on the launch quality.

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