Fuel cell durability being one of the technical bolts regarding technology industrialization in automotive sector, improvement methods are particularly relevant. Fault tolerant control process enables to increase fuel by detecting and correcting faults real time. cells prone because they very sensitive operating conditions. In vehicle application, fault risk is exacerbated as dynamic conditions...

Automotive manufacturing is energy-intensive. The consumed energy contributes to the generation of significant amounts of greenhouse gas (GHG) emissions by the automotive manufacturing industry. In this paper, a study is conducted on assessing the application potential of such clean energy power systems as solar PV, wind and fuel cells in reducing the GHG emissions of the global auto manufactur...

This paper treats air-to-fuel ratio control of a spark ignition engine. A direct adaptive control method using Gaussian neural networks is developed to compensate transient fueling dynamics and the measurement bias of mass air flow rate into the manifold. The transient fueling compensation method is coupled with a dynamic sliding mode control technique that governs fueling rate when the throttl...

In Brazil, gasoline and ethanol coexist as automotive fuels and are becoming closer substitutes as flex cars become more widely adopted. We employ this source of variation in a large panel of weekly prices at the station level to show that fuel prices have fallen in response to this change. This finding is evidence of market power in fuel retail and indicates that innovations that increase cons...

Maintaining proper membrane humidity is crucial to ensure optimal operation of a polymer electrolyte membrane fuel cell system. A membrane humidifier using the fuel cell exhaust gas to humidify the dry air is studied in this paper. We first develop a thermodynamic model, which captures the crucial dynamic variables of the humidifier, including the pressure, flow rate, temperature, and relative ...

Sensors are critical for the monitoring and real-time control of fuel cell system, according to the reliability requirements of multi-sensor of 60kW automotive fuel cell system designed by our group, a two-level neural networks based fault diagnosis method is put forward in this paper. The two-level neural networks include a main net and five sub nets which are corresponding to inlet hydrogen p...

Often called 'the heart of the engine', the fuel injection system is without any doubt one of the most important systems. It meters the fuel delivery according to engine requirements, it generates the high injection pressure required for fuel atomization, for air-fuel mixing and for combustion and it contributes to the fuel distribution in the combustion system-hence it significantly affects en...

Use of liquefied petroleum gas (LPG) in compression-ignition (C-I) engines has always been considered important in the diesel engineering field. This is due to its easy accessibility and good combustion characteristics. In this paper the application of LPG fuel along with diesel oil in a direct- injection automotive diesel engine is experimentally investigated. In order to convert the pure dies...

There is concern that a trend toward smaller, lighter, fuel-efficient vehicles could adversely affect overall fleet safety. Since 2006, the U.S. Congress has directed the National Highway Traffic Safety Administration to “examine the possible safety benefits of lightweight plastic and composite intensive vehicles (PCIVs)” with Federal and industry stakeholders. This paper identifies near-term r...