three types of vehicles, pride, peugeot 405 glx and paykan were tested from the point of view of exhaust emissions (co, hc, nox) and fuel consumption, on chassis dynamometer running european standard driving cycle with three kinds of fuels, mtbe free unleaded regular gasoline (urg) as base fuel and 10 and 15 volume percent mtbe –gasoline blends as comparable fuels. utilizing mtbe blended fuels ...

Plug-in hybrid-electric vehicles (PHEVs) have recently emerged as a promising alternative technology to dramatically reduce fleet petroleum consumption. However, the fuel economy of many recent prototype and theoretical vehicles has varied widely and often been exaggerated in the press. PHEVs present a significant challenge as compared with conventional vehicle fuel economy reporting because th...

Since the early 1990s, it seems that the fuel cell might become the new key technology in the automotive sector leading to a change of paradigm in the next decades. Also in scientific discussion, fuel cells are researched on and described more intensively during the last ten years. The perspective to significantly reduce local emissions as well as to gain independence from crude oil has induced...

Increasingly stringent fuel economy standards will reduce per-mile driving costs and may raise vehicle miles traveled, which is referred to as the rebound effect. All previous estimates impose at least one of three behavioral assumptions: (a) fuel economy is uncorrelated with other vehicle attributes; (b) fuel economy is uncorrelated with attributes of other vehicles owned by the household; and...

The objective of this study is to investigate the combustion in a pilot-ignited supercharged dual-fuel engine, fueled with different types of gaseous fuels under various equivalence ratios. It is found that if certain operating conditions are maintained, conventional dual-fuel engine combustion mode can be transformed to the combustion mode with the two-stage heat release. This mode of combusti...

System state determination with incomplete sensory information set proved to be a technically challenging problem. In this paper, authors tackle a problem of this type associated with vehicle fuel storage systems and proposed a novel feature extraction method. Federal and state regulations require fuel storage leak detection mechanism to be conducted periodically and regulate its execution rate...

This study analyses the actual effect of a representative low-emission zone (LEZ) in terms shifting vehicle registrations towards alternative fuel technologies and its effectiveness for reducing fleet CO2 emissions. Vehicle registration data is combined with real life consumption values on individual model level, impact LEZ then determined via an econometric approach. The increase vehicles (AFV...

In the aspect to facilitate and enhance the vehicle’s features such as speed, mileage and volumetric level of fuel by providing it with the detection of level and restrict illicit activities using sensor. It is implemented using Vehicle Area Network (VAN) and embedded design. It suggests a computerized technique in heavy vehicles. Due to the high costs, theft more and more every day and the res...

is paper examines two major emerging constraints on transport in fast-growing Chinese urban cities: oil supply and urban infrastructure. e research considers automobile technology, alternative fuels, and mobility choices, as well as policy measures that could be adopted to reduce the use of oil for transport and greenhouse gas emissions. ree transport energy scenarios, “Road Ahead,” “Oil Saved,...

Traffic signals typically produce vehicle stops and thus increase vehicle fuel consumption levels. Vehicle stops produced by traffic signals, decrease vehicle fuel economy on arterial roads making it significantly lower than that on freeways. Eco-Cooperative Adaptive Cruise Control (Eco-CACC) systems can improve vehicle fuel efficiency by receiving Signal Phasing and Timing (SPaT) data form dow...