scholarly journals Evaluation of alternative drive systems based on driving patterns comparing Germany, China and Malaysia

2017 ◽  
Vol 14 (1) ◽  
pp. 3985-3997
Author(s):  
M. Schüller ◽  
◽  
S. Tewiele ◽  
T. Bruckmann ◽  
D. Schramm ◽  
...  
Keyword(s):  
Driving Patterns ◽  
Alternative Drive ◽  
Drive Systems

Aspects Influencing the Utilization of the Environmentally Friendly Vehicles in the Logistics and Transport Companies and the Future of Alternative Drive Systems

2015 ◽  
Vol 803 ◽  
pp. 24-32
Author(s):  
Jaroslava Kubanova ◽  
Miroslava Britanakova ◽  
Jan Lizbetin ◽  
Ondrej Stopka
Keyword(s):  
Environmentally Friendly ◽  
Customer Requirements ◽  
Continuous Increase ◽  
Alternative Drive ◽  
The Future ◽  
Drive Systems

Purchasing and utilizing the vehicles is an important element of corporate logistics in the transport companies. Novel trends and customer requirements in terms of range and quality of received services of the carriers have continuous increase. This paper discusses about aspects influencing the utilization the environmentally friendly vehicles, in other words the motivation for their purchasing, in terms of toll charges for transport and logistics companies in the selected countries. This could be one of tools to maintain competitiveness of the particular company in the market. The paper is focused on description of selected elements regarding the future of alternative drive systems as well.

scholarly journals Steady-state performance investigation of open-circuit hydrostatic drives used in the rotary head of drill machine

2017 ◽  
Vol 233 (1) ◽  
pp. 3-20 ◽  
Author(s):  
Alok Vardhan ◽  
K Dasgupta ◽  
N Kumar ◽  
Santosh Kr Mishra
Keyword(s):  
Steady State ◽  
High Speed ◽  
Mining Operation ◽  
Open Circuit ◽  
Alternative Drive ◽  
Displacement Pump ◽  
Torque Loss ◽  
Drive Systems ◽  
Low Torque ◽  
Steady State Performance

This paper highlights the steady-state performance of open-circuit hydrostatic drives for the rotary head of drill machine through modeling and experiment. In this respect, two alternative drive systems are considered. A drive system that consists of a variable displacement pump and two high-speed low-torque hydro-motors with a gear reducer unit and the other one consists of an identical pump and a low-speed high-torque hydro-motor. The steady-state model of the proposed drive arrangements is made by bondgraph simulation technique, where the relationship of the various losses of the components are obtained as a function of operating parameters and are identified experimentally. Using them, the slip and torque loss along with the overall efficiency of the drives are characterized. The performances of the hydrostatic drives are compared for the usual operating speed range of the drill machine used in mining operation. The studies made also identify the operating range of the proposed hydrostatic drives with reasonable efficiency.

scholarly journals Life Cycle Cost (LCC) Level of an Urban Transport Fleet with Differentiated Share of Buses with Alternative Drive Systems

2020 ◽  
Vol 22 (3) ◽  
pp. 68-77
Author(s):  
Emilia M. Szumska ◽  
Rafal S. Jurecki ◽  
Marek Pawelczyk
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Alternative Fuels ◽  
Urban Transport ◽  
Environmental Aspects ◽  
Compressed Natural Gas ◽  
Alternative Drive ◽  
Urban Public Transport ◽  
Drive Systems ◽  
The Cost

In recent years, there has been a significant increase in the number of buses operated by urban public transport companies powered by alternative fuels and equipped with alternative drive systems. In addition to economic factors, operators should also take environmental aspects into account when purchasing new vehicles. In this case, a useful criterion for selecting a vehicle is the Life Cycle Cost (LCC), which, in addition to the cost of purchasing a bus, takes into account the necessary expenses associated with its maintenance, operation, decommissioning, as well as emissions costs. This paper presents a study of the LCC values, estimated for the entire bus fleet based on several bus replacement variants, taking into account different shares of alternative buses in the transport fleet. Analyses have shown that replacing conventional buses by the compressed natural gas (CNG) powered buses will reduce life cycle cost by 27% compared to the LCC level in 2019. Increasing the share of electric buses in the fleet will significantly reduce the level of emissions of harmful substances contained in exhaust gases.

scholarly journals Evaluation of the efficiency of hybrid drive applications in urban transport system on the example of a medium size city

2018 ◽  
Vol 180 ◽  
pp. 03004
Author(s):  
Marek Pawełczyk ◽  
Emilia Szumska
Keyword(s):  
Local Governments ◽  
Urban Transport ◽  
Medium Size ◽  
Environmental Aspects ◽  
Large Cities ◽  
Driving Cycles ◽  
Alternative Drive ◽  
Consumption Reduction ◽  
Harmful Emissions ◽  
Drive Systems

Unconventional drive systems of the urban buses become more and more popular. The reason is clear: reduction of the harmful emissions as well as the fuel consumption reduction. Environmental aspects are becoming of the great importance. Local governments of large cities are “pushing” conventional buses away from city centres, trying to substitute them by the other more environmentally friendly urban vehicles. The goal of the contribution is to present a comparison of the selected types of the urban buses equipped with alternative drive systems under conditions of medium size city. The first part of the paper presents the methodology and construction of urban bus driving cycles prepared for Kielce city (Poland). The next part shows fuel economy and energy consumption obtained from simulation of urban buses powered by conventional diesel engine and hybrid electric drive under the developed driving cycles. The last part presents results of the Total Cost of Ownership (TCO) calculations estimated for selected urban buses.

scholarly journals Alternative Drive Systems and Environmentaly Friendly Public Passengers Transport

2018 ◽  
Vol 3 (3) ◽  
pp. 105-113 ◽  
Author(s):  
Saša Milojević ◽  
Tomas Skrucany ◽  
Hranislav Milošević ◽  
Darko Stanojević ◽  
Mladen Pantić ◽  
...  
Keyword(s):  
Alternative Drive ◽  
Drive Systems

Risk Protection in Series Production for Alternative Drive Systems

2012 ◽  
Vol 12 (3) ◽  
pp. 60-64
Author(s):  
Andreas Büttner ◽  
Wolfgang Triefenbach
Keyword(s):  
Series Production ◽  
Alternative Drive ◽  
In Series ◽  
Risk Protection ◽  
Drive Systems

scholarly journals The $845,000 Porsche 918 Hybrid Spyder: Redefining the Supercar

2011 ◽  
Vol 4 (1) ◽  
pp. 37
Author(s):  
Ismail Abdulhak ◽  
Trent Andrew Smith
Keyword(s):  
Consumer Preferences ◽  
Hybrid Drive ◽  
Renewable Fuel ◽  
Electric Cars ◽  
Car Market ◽  
Alternative Drive ◽  
Low Emission ◽  
The Family ◽  
Drive Systems

As a result of the role of the automobile in contributing to carbon emissions and in symbolizing the overconsumption of scarce no n-renewable fuel reso urces coupled with the increased media focus on climat e change governments all over the world are intervening in the automobile market with regulation. Rising world oil prices and consumer preferences for enviro nmentally friendly goods has driven automobile manufacture rs to research, develop an d market alternative drive systems. Such advancements are now commo n in the family car market with hybrid electric as well as fully electric cars now ava ilable. However, Porsche are blazing a new trail with their introduction of the new 918 hybrid Sp yder. They plan to trigger acceptance for low emission hybrid drive systems in a market that has had few viable or perhaps even acceptable alternatives to the gasoline combustion engi ne – the supercar segment.

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