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Nowadays researchers and car-makers are working on autonomous vehicles related topics towards solutions that employ detailed road network information derived from 3D maps. In this context, Advanced Driver Assistance Systems (ADAS) are getting more and more widespread on automotive market. Information on the upcoming horizon is used to enhance vehicle drivability, comfort, energy efficiency and driver...
In the study, we investigated the hybrid systems to reduce the hydrogen consumption of fuel cell systems. We used super capacitors as auxiliary power source for hybridization. We set four different configurations using super capacitors and DC/DC converters. We performed the tests on İstanbul University hydrogen powered vehicle. We extracted the energy and hydrogen consumptions of fuel cell for each...
Recently, as China's urbanization accelerating, large numbers of municipal solid wastes have increased rapidly. How to dispose so many rubbishes timely and rapid becomes an urgent issue. Traditional sanitation garbage trucks plays an important role in collecting and transiting rubbishes, but the traditional sanitation garbage trucks have lots of disadvantages while PTO(Power take off) working, such...
This paper investigates the impact of tele-operation on energy consumption of a small unmanned ground vehicle (UGV). Using statistical response surface analyses, it is shown that factors such as velocity, stop-and-go operations, human operator delay and aggressiveness, and their interactions significantly increase the energy requirements in a typical mission. We investigate the effect of velocity...
As a move towards sustainable low carbon growth, there are number of mitigation measures like energy efficiency, fuel switch, technologies and demand management which have been identified to reduce green house gas emission. The major reduction opportunities of GHGs involve improving the efficiency with which the energy is used and the transition towards alternative sources of energy. The sustainable...
Many advanced vehicle and fuel technologies are currently being developed with the aim of reducing the environmental impacts of road transport and its dependence on fossil oil. In this paper we present a new methodology to compare a broad range of current and future passenger vehicle options in terms of technical, economic, and environmental criteria. Due to the spectrum of consumer preferences, usage...
This work aims was to assess electric vehicle (EV) user's motivations, daily patterns and vehicle operation and management. The project was promoted by EMEL — Lisbon's mobility and parking management company, and was publicized among Lisbon's EV user's, who were offered, as an incentive, a green permit which allowed them to park for free in the city's metropolitan central area. Data was gathered over...
This paper assesses three typical plug-in hybrid electric vehicle (PHEV) energy management strategies by comparing the average fuel consumptions (AFC) based on the daily driving range data of Beijing. The three different strategies are developed first: with the all-electric charge-sustaining (AECS) strategy, the vehicle is propelled only by the motor until the SOC is depleted; with the fixed blended...
Due to the development of industry and commerce, the percentage of fuel consumptions and emissions of the transport sector is increasing in recent years. As a result, the levels of CO2 and other emissions have worsened the environment, and thus global-warming and air-pollution issues need to be incorporated within the planning and operation of transportation system. This research proposes two energy...
Due to increased public discussion on global climate change and increased awareness of environmental issues in general, a variety of transport related strategies are being developed to reduce the energy consumption of road travel. Pre-trip journey planners and on-trip navigation systems are widely used to identify optimal routes. Travel time, trip distance and travel cost are usually used as criteria...
This paper presents a trip-oriented Plug-in Hybrid Electric Vehicle (PHEV) energy management control (EMC) strategy that aims to improve the real world PHEV energy usage efficiency, economy and flexibility. The designed control architecture and methodologies enable the energy management control to utilize different levels of available trip foreknowledge, from as limited as distance between charges...
In face of the overcapacity crisis, Energy-saving and new energy vehicles have undoubtedly become the hot topics in the vehicle industry. In this paper we did some empirical research regards the understanding, acceptance and purchasing behavior of individual consumers in China. The product perceived quality of Energy-saving and new energy vehicles includes three factors: intrinsic quality, External...
The theme is try to introduce the calculation software of fuel consumption for heavy truck which is based on Microsoft Access 2003 database management system and object-oriented visual programming language Visual Basic (VB) 6.0. It developed through the analysis of the important factors influencing heavy truck fuel consumption, the database of the actual running vehicle information, the compilation...
To test and evaluate performance, fuel efficiency and emission of fuel cell hybrid vehicles, a laboratory equipped with a heavy duty chassis dynamometer is constructed by CATARC collaborates with Tsinghua University. The framework of the chassis dynamometer laboratory is designed. Then, three hydrogen consumption measurement methods are researched, and a hydrogen energy consumption measurement system...
As vehicle powertrain efficiency increases through electrification, consumer travel and driving behavior have significantly more influence on the potential fuel consumption of these vehicles. Therefore, it is critical to have a good understanding of in-use or “real world” driving behavior if accurate fuel consumption estimates of electric drive vehicles are to be achieved. Regional travel surveys...
The design of electrified power trains for use in vehicle propulsion systems is a very difficult topic and thus often discussed in research worldwide. Very much effort has been undertaken to obtain simulation and design tools for entire vehicle development. The designed vehicle has to meet multi-objective criterion where to find an optimum for a specific usage. Facing decreasing resources of fossil...
Fuel economy of city bus is poor, because the urban traffic is congested, the city bus is constantly in the idle condition resulting in fuel consumption is increasing. In order to improve the vehicle fuel economy and protect environment, the energy consumption characteristics of city bus are analyzed, and the energy consumption model is established. The energy-saving mechanism of the idling stop system...
The Millenium Ecosystem Assessment (MEA) has highlighted the fast depletion of ecosystem services over the past 50 years and has identified their crucial role in human well-being. This emphasizes the need of accounting for ecosystem goods and services in life cycle of products and processes. Despite the availability of numerous Life Cycle Assessment (LCA) techniques, most methods only account for...
Fuel cell vehicles have a high potential to reduce both energy consumption and carbon dioxide emissions. Hydrogen storage is the key technology towards the hydrogen society. However, the low density limits the amount of hydrogen stored on board and also prevents wide penetration of fuel cells. This paper provides an up-to-date review of fuel cell technology and application. A description of fuel cell...
Ecological driving aiming at optimizing energy consumption is highly desirable for sustainable intelligent transportation systems. This paper presents a unique development of ecological vehicle driving system in model predictive approach. The vehicle's fuel consumption model and the model based anticipation of future road-traffic situations are used in this rigorous reasoning approach of deriving...
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