Growing concerns about environmental issues have led to the consideration of alternatives current mobility. Electric mobility is one such alternative that receiving a great deal attention in Europe. In particular, new legal framework for introduction an electric system Portugal has recently been set up by government. A key issue this recharging batteries and, consequently, location charging stations. This paper presents study on electric-vehicle stations area Lisbon, capital city Portugal,...

Abstract The objective of this research is to evaluate differences in fuel consumption and tailpipe emissions flexible vehicles (FFVs) operated on ethanol 85 (E85) versus gasoline. Theoretical ratios carbon dioxide (CO2) for both fuels are estimated based the same amount energy released. Second-by-second from one FFV Ford Focus fueled with E85 gasoline were measured under real-world traffic conditions Lisbon, Portugal, using a portable measurement system (PEMS). Cycle average dynamometer...

<div class="section abstract"><div class="htmlview paragraph">Internal combustion engine (ICE) cold-start is an issue that occurs either in conventional and hybrid powertrains before the ICE reaches its normal operation temperature, affecting both fuel consumption due to higher heat losses, pollutant emissions low catalytic converter temperatures. The study of cold start on has been extensively addressed, although typically under laboratorial conditions, however studies addressing impact...

This work presents a methodology to estimate vehicle fuel consumption and NOx mass emission rates using only public certification data from individual vehicles. Using on-road collected 14 vehicles it was possible establish trends of use emissions according with the power demand, Vehicle Specific Power methodology, which were further applied modal on Diesel Comparing real-world operation, estimates presented average absolute deviations lower than 10%. Regarding estimates, deviation is around...

The objective of this research is to develop a fuel cell hydrogen vehicle model (FC-RVS) and validate it with existing black-box models real on-board data. On-board data for dynamic profile, topography consumption was collected in the city Porto framework bus demonstration project CUTE (Clean Urban Transport Europe). used part fleet 27 urban buses developed built by Evobus uses based non-hybrid propulsion system. reflects very demanding drive cycle that resulted availability several...

This research paper analyses the use of four electric vehicles, two motorcycles (EM) and small low powered vehicles (EV) in an urban environment with demanding topography driving profile. The were compared conventional technologies using a methodology that was developed to estimate its drive cycle (EV-DC) as well corresponding energy consumption, life-cycle approach. uses real-world cycles input performed this case, on representative routes Lisbon, estimates impacts considering vehicle used....

The main objective of the present study is to analyze impact market share increase different vehicle technologies in terms energy consumption and CO2 emissions Portuguese mainland region. An extensive characterization how road compare a full life cycle perspective was attained. conclusions are that plug-in hybrid, electric fuel cell vehicles can have potential reduced (up 9%) 19%) analysis.

Urban sustainable mobility solutions are being discussed throughout the world to deal with problems of high use land, congestion situations, energy consumption and emissions derived from road transportation. Part these concerns promotion public transportation as an alternative individual Public transport only becomes attractive option if, for provided (passenger x km), emits less pollutants consume energy. This paper focuses on comparing fuel tailpipe (CO2, HC, CO, NOx, PM) between urban...

The HIDROCAT is an all electric small ship that uses energy from three sources, namely: the hydrogen stored on board via fuel cells, solar and batteries. In this sense, it a hybrid propulsion system composed of two motors, lithium batteries, cell photovoltaic cells. A control unit does management fluxes. objective to maximize use energy, therefore batteries important store converted when not immediately used by motors. guarantees available at expense relatively weight irradiation...

The transportation sector has been one of the fastest growing sectors resulting in a high final energy consumption Portugal (40% 2011), with road being responsible for 82% that consumption. As result, alternative vehicle technologies such as electric vehicles are becoming increasingly important since they may contribute to greater efficiency. However, their autonomy limitations influence mobility paradigm, making acceptance dependent on location and context driving. Thus, objective this...

This paper presents an energy and environmental characterization of the two most relevant Plug-in Hybrid Electric Vehicles available in market (Opel Ampera Toyota Prius Plug-in), order to provide estimate fuel electricity consumption, tailpipe emissions charge depleting mode mileage for any drive cycle studied, based on vehicle specific power methodology. These vehicles were monitored under real-world operation with a portable laboratory that collects data from sensors (via on-board...

The use of hydrogen as an alternative fuel has been suggested a key element in promoting the improvement urban air quality and to reduce GHG emissions, while diversifying guaranteeing security energy sources supply. Several projects have undertaken develop strategy towards European hydrogen-based transport system. present paper describes part two those projects: CUTE HYFLEET:CUTE, sponsored by Commission's 6th Framework Research Programme, involving several partners, mainly from industry,...

The use of information and communication technologies (ICT) may provide additional opportunities for energy savings avoided emissions in the transportation sector, namely by using on-board devices large scale urban sensing on road network. This research work presents a preliminary analysis, an device, mobility patterns five driver sample Lisbon, Portugal. results average are: 54 km traveled 5 trips per day; trip distance 11 km; speed 31 km/h. Weekdays are characterized with higher vehicle...

Emerging vehicle technologies such as hybrids, flex-fuel, electric, and fuel cells are projected to exceed 25% of total light-duty sales by 2030. Because their higher energy efficiency, hybrid electric vehicles (HEVs) produce lower emissions greenhouse gases CO2 than comparable gasoline vehicles. Measurements selected advanced diesel direct injection gasoline-electric indicate that the HEV had lowest highest economy. One study concluded replacing all conventional with HEV's could cut CO NOx...