Based on the problems caused by today conventional vehicles, much attention has been put on the fuel cell vehicles researches. However, using a fuel cell system is not adequate alone in transportation applications, because the load power profile includes transient that is not compatible with the fuel cell dynamic. To resolve this problem, hybridization of the fuel cell and energy storage device...

sulfonated poly (ether ether ketone) (speek) with a low degree of sulfonation (ds = 40%) was prepared for proton exchange membrane fuel cells (pemfc). poly (ether ether ketone) (peek) was sulfonated in concentrated h2so4 under n2 atmosphere and characterized by the hydrogen nuclear magnetic resonance (h-nmr) technique. after preparation of the speek polymer, the obtained polymer was dissolved i...

in front wheels driven vehicles, fuel economy can be obtained by summing torques applied to rear wheels. on the other hand, unequal torques applied to rear wheels provides enhanced safety. in this paper, a model with seven degrees of freedom is considered for the vehicle body. thereafter, power-train subsystems are modeled. considering an electrical machine on each rear wheel, a fuzzy controlle...

This paper addresses the critical need to incorporate realistic models of the air supply sub-system in fuel cell system performance analysis. The paper first presents the dominant performance issues involved with the air supply operation in the fuel cell system. The report then goes on to propose a methodology for an air supply model that addresses many of the performance issues. Most important...

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...

Modern vehicles, as an emerging smart mobile platform, are equipped with operating systems to help or even replace human drivers [1, 2, 3, 4, 5]. The computational capabilities provide opportunities and challenges to manage and control vehicles safer and more fuel efficient. Morgan Stanley reports that 100% adoption of self-driving cars is expected to have $158 billion annual savings [6] is US....

Growing environmental concerns coupled with the complex issue of global crude oil supplies drive automobile industry towards the development of fuel-efficient vehicles. Due to the possible multiple-power-source nature and the complex configuration and operation modes, the control strategy of a military vehicle is more complicated than that of a conventional vehicle. Furthermore, military vehicl...

This paper presents a method for increasing fuel economy using traffic data and a model predictive controller. Using knowledge of the traffic ahead, a vehicle can react to changes in traffic density or speed before they happen, increasing the efficiency of a trip and providing valuable information to the driver. In particular, the traffic information is used to determine a time-varying velocity...

This paper proposed an integrated system between an eco-driving algorithm and an eco-signal control based on vehicle-to-everything (V2X) communication, and evaluated the system’s environmental benefits. The system calculates eco-speeds using vehicle information (e.g., current locations, vehicle speeds, and acceleration profiles) and signal information. In addition, the system controls current s...

A technology has been devised and recently deployed in highway vehicle transportation to protect vehicle fuel tanks from impact-induced fires. The technology is currently employed in the FIRE Panel product, which exhibits an improved design based upon powder panel technology used for decades to protect military aircraft from ballisticinduced fuel tank-fed fires. The device comprises a shallow s...