This paper investigates how fuel economy efficiency affects household vehicle mileage traveled and its distribution. Using a detailed micro-level data of National Household Travel Survey 2001 and 2008, we estimated a recursive structural model for joint determination of vehicle fuel efficiency choice and vehicle mileage traveled each year. We further studied the distributional effects on vehicl...

This paper investigates the opportunities for improving truck fuel economy through the use of a Fuel Cell Auxiliary Power Unit (FC APU) for silent watch, as well as for powering electrified engine accessories during driving. The particular vehicle selected as the platform for this study is a prototype of the Family of Medium Tactical Vehicles (FMTV) capable of carrying a 5 ton payload. Peak sta...

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...

Engine mathematical model can be used to simulate vehicle dynamic performance and fuel economy for vehicle design. Simulation of vehicle dynamic performance and fuel economy is based on mathematical model of engine. Least square method and multiple regression analysis were used to fit curve of external characteristics and universal characteristics when the test data of external characteristics ...

1 Abstract— Power management strategy is as significant as component sizing in achieving optimal fuel economy of a fuel cell hybrid vehicle (FCHV). We have formulated a combined power management/design optimization problem for the performance optimization of FCHVs. This includes subsystem-scaling models to predict the characteristics of components of different sizes. In addition, we designed a ...

The aim is to show that the fuel economy and emissions reduction in the power systems consisting mainly of thermal power plants are not proportional with the electricity production of wind turbines. Participation of thermal power plants in the compensation of fluctuating production of windmills eliminates major part of the expected positive effect of wind energy. A method for calculation of rea...

In March 2017, EPA Administrator Scott Pruitt reopened an evaluation of the automotive fuel economy and greenhouse gas emissions standards that the EPA had finalized in January. This case provides a history of the rules, along with assessments of their costs and benefits. It addresses numerous debates, including the environmental benefits of the rules, the role of electric vehicles, whether the...

Production of electricity by burning coal, oil, and natural gas produces CO2, SO2, NOx, etc. which act as greenhouse gases and pollutants. This paper examines fuel use, energy production, and the quantities of these gases produced in the Malaysian economy during the years 1991 and 2000. Input-output (Leontief) analysis is used in this study to enable calculation of energy demand and pollution e...

Recent changes to the Corporate Average Fuel Economy (CAFE) standards in the United States mandate substantial improvement in automobile fuel economy over the next fifteen years. One of the ways that manufacturers improve fuel economy is to lower vehicle weights, which has impacts on safety. The innovation of this project is a novel maximum likelihood model that avoids issues of driver selectio...

This paper presents the traction motor sizing for optimal urban fuel economy in two mild and three strong hybridization propulsion on front-wheel-drive vehicles. The traction motor sizes, by means of motor rated torque and speed, are optimized for maximum urban fuel economy. The two mild hybrids are Belt-Integrated-Starter-Generator (BISG) and Crankshaft-Integrated-Starter-Generator (C-ISG) sys...