PUMA Mind is a co-funded project aimed at enhancing the understanding of the behavior of fuel cell systems in vehicles taking advantage of the new freedoms in design that electric powertrains provide. Within this project, IDIADA focused on the integration of fuel cell systems in the automotive sector and the resulting fuel cell power demand profiles were used as base line to develop the fuel ce...

Due to energy shortage and global warming, issues of energy saving have become more important. To increase the energy efficiency and reduce the fuel consumption, waste heat recovery is a significant method for energy saving. The organic Rankine cycle (ORC) has great potential to recover the waste heat from the core jet exhaust of a turbofan engine and use it to produce power. Preliminary study ...

This paper reviews the latest studies of hybrid electric vehicles (HEVs) on modelling, controls, and energy management. HEV dynamics, formulas, calculations, schemes vehicle parts, such as battery, converter, motor, generator, Simulink models, are presented. Moreover, simulations propulsion operation, regenerative braking system, dynamics conducted. A comprehensive model is built that simulated...

Growing environmental concern prompts vehicle users to search for cleaner and ecological transport modes. Many consumers organizations have decided replace conventional diesel or gasoline powered vehicles with alternative drive alternative-powered vehicles. Operating conditions may a heavy influence on the operating parameters of vehicles, such as: airpollution emission, energy consumption fuel...

A nonlinear wheel loader model with nine states and four control inputs is utilized to study the fuel and time efficient optimal control of wheel loader operation in the short loading cycle. The wheel loader model consists of lifting, steering and powertrain subsystems where the nonlinearity originates from the torque converter in the drivetrain. The short loading cycle, from loading point to a...

Nowadays, reducing the energy and fuel consumption of road vehicles is a key issue. Different strategies have been proposed. One of them is to promote Eco-driving behaviour among drivers. Most Eco-driving tips take into account only the road stretch where the vehicle is located. However, larger improvements could be achieved if information from subsequent stretches is used. The main objective o...

This paper reports the results of an experimental investigation on the effect of the EGR on the pollutants emission, especially on oxides of nitrogen, from the exhaust gases and performance of the spark ignition engine. Also along with experimental work, a mathematical model for the determination of the effect of EGR on the peak cycle temperature and for the prediction of its effect on the NOx ...

A driving cycle is a record intended to reflect the regular use of given type vehicle, presented as speed profile recorded over certain period time. It used for assessment engine pollutant emissions, fuel consumption analysis and environmental certification procedures. Different cycles are used, depending on region world. In addition, drive by car manufacturers optimize vehicle drivelines. The ...