Controllers PID (proportional - integral - derivative) are particularly suitable for control of dynamic processes which can be modeled by systems of first and second order. Internal combustion engines....
The permanent demand for timing and cost reduction on product development in the automotive industry lead to a gradual replacement of the traditional empirical development methods by faster tools whic....
Valve recession is a phenomenon observed in internal combustion engines, in which the set of valve and valve seat presents excessive wear in the contact region, causing poor sealing of the combustion ....
Since the debut of the spark ignition engines about 150 years ago, the understanding of an engine torque production has been widely investigated in many engine combustion research laboratories around ....
To analyze a complete real machine, it can be convenient to divide the system into sub-systems, analyzing each sub-system individually, and then, assembling them together in the whole system. Many of ....
The present work regards the analysis of connecting rod for a flex fuel engine. The study comprised primary dynamic analysis, joint opening analysis, stresses, strains and deformation of the component....
Lower fuel consumption, low greenhouse gas emissions and high specific performance are commonly known demands for the automotive industry to meet, minding always the sustainability. As a result, the e....
The demand for higher output performance engines has lead to the increase of PCP (Peak Cylinder Pressure) and more aggressive engine designs for cylinder liners, mainly for new heavy duty engines deve....
The introduction of the flexible fuel vehicles in Brazil had the objective to protect the customer against fuels - commercial gasoline (E22) and hydrated ethanol (E100 or AEHC) - price variations. One....
This work presents the results of a simulation using the Finite Elements Method (FEM) to study the contact pressure between cams and followers in assembled camshafts. The geometry was chosen based on ....
The advent and high market share of the flex fuel were viable also due to the use of software to identify the type of fuel via the oxygen sensor signal manipulation. However, these routines are subjec....
The arrival of new competitors and the continuous growth of the customer requirements, lead the OEM's to reduce the product development time; thus, the simulation tools available on the market became ....
The study was conducted in order to reduce the power consumption of valve train system. Initially, it was used the numerical simulation tool GT-VTrain, which covered the use of the mapping function of....
The reduction of oil demand for automotive engines has been driven recently by the need to reduce oil pump capacity so that benefits from having a smaller size, including a reduction in power loss and....
The market has recently required the bearings to operate under intermittent or occasionally boundary lubrication conditions through requirements guided basically by CO₂ reduction: flex-fueled engines,....
This paper presents computational results comparing conventional internal combustion engine (ICE) and the adjusting pistons internal combustion engine (APICE) that is being developed by PCA Soluçðes L....
Downsized engines are considered one major technical trend to attend the demands for CO₂ and fuel consumption reduction. Usually this engine configuration consists of displacements between 0.9L and 1.....
Automotive lubrication systems have been studied for long time, looking for improving its efficiency and reduce power consumption. On this context, the oil pump plays an important role, because most o....
The application of finite element method (FEM) is widespread used to structural analysis. However the prescription or the consideration of a porous material parameter is still challenging. Thus, this ....
The project explores the physical-chemical properties of the ethanol and the gasoline, showing that is possible to distinguish in between them under high temperatures, using a PTC heater type as an ac....
