The objective of this study was to investigate the cooling performance characteristics of an electrical air conditioning system using R744 as an alternative of R-134a for a fuel cell electric vehicle. In order to analyze the cooling performance characteristics of the air conditioning system using R744 for a fuel cell electric vehicle, an electrical air conditioning system using R744 was develop...

The reduction of CO2 emissions associated with vehicle use is an important element of a global transition to sustainable mobility and is a major long-term challenge for society. Vehicle and fuel technologies are part of a global energy system, and assessing the impact of the availability of clean energy technologies and advanced vehicle technologies on sustainable mobility is a complex task. Th...

This paper compares four transportation energy conservation strategies using a comprehensive evaluation framework that takes into account how each strategy affects annual vehicle travel, and therefore mileage-related impacts such as traffic congestion, road and parking facility costs, and crashes. These mileage-related impacts tend to be large in magnitude compared with energy conservation bene...

This paper proposes a parallel energy-sharing control for fuel cell electric vehicles (FCEVs) application. The hybrid source consists of a fuel cells (FCs) generator, battery packs and Ultracapacitor (UC) modules. In the proposed parallel energy-sharing control, each source is connected to the direct current (DC) bus via power electronics converters. A total of six control loops are applied in ...

35 This paper describes research undertaken to establish plausible fuel-speed curves (FSC) for 36 hypothetical advanced powertrain vehicles. These FSC are needed to account for the effects of 37 congestion in long-term transportation scenario analysis considering fuel consumption and 38 emissions. We use the PERE fuel consumption model with real-world driving schedules and a 39 range of vehicle...

This study studies the relationship between tyre pressure and fuel consumption of vehicles using experimental methods and mathematical model to predict vehicle fuel consumption. The model obtained was F = 0.62722.5941p+3.3428p±0.018 where F is the fuel consumed and p is the tyre pressure of a vehicle, which can also be used to predict the amount of fuel consumed by other vehicles. The model was...

This paper compares four transportation energy conservation strategies using a comprehensive evaluation framework that takes into account how each strategy affects annual vehicle travel, and therefore mileage-related impacts such as traffic congestion, road and parking facility costs, and crashes. These mileage-related impacts tend to be large in magnitude compared with energy conservation bene...

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...

Keywords: Vehicle fuel economy Eco-driving Human–machine interface Autonomous vehicle Driving simulator analysis a b s t r a c t Motor vehicle powered by regular gasoline is one of major sources of pollutants for local and global environment. The current study developed and validated a new fuel-economy optimization system (FEOS), which receives input from vehicle variables and environment varia...