This paper describes an application of an engine cycle simulation code (WAVE) in co-simulation with a control and dynamics modelling package (Matlab Simulink) to provide total vehicle system modelling capability. The models presented form the basis of an Analytical Calibration CAE toolset allowing the definition of many electronic control unit (ECU) calibration parameters in the CAE environment...

Soot emissions from automotive applications can be reduced through on-board diesel particulate filters (DPFs): the filter gets progressively loaded by filtering the soot laden flue gases, thus causing an increasing pressure drop, until an oxidative regeneration is induced by temperature rise. Due to the complexity of the involved phenomena, a fully predictive and detailed mathematical model rep...

The production of torque and pollutants of Variable Valve Actuation equipped internal combustion engines found in the automotive industry (both Diesel and gasoline engines) is studied. Variable Valve Actuation (VVA) is a technology which has been introduced to optimize engine efficiency at steady-states covering a wide range of operating conditions. In more details, the outcome of the internal ...

Diesel engines play a very significant role in the automotive industry, but total emissions of diesel are more than 1.8 times that petrol engines. It is therefore important for to control emissions. Theoretically, Miller cycle can be used achieve NOx reductions by changing effective compression ratio, while it has become increasingly popular recent years with increasing maturity current turboch...

The paper presents objectives and results of a case study in computer support for failure mode and effects analysis and for the creation of repair manuals in the domain of automotive systems. Model-based prediction and diagnosis reflect the requirements of these tasks. More specifically, qualitative models of system components are necessary for both capturing the available knowledge and achievi...

Sensors that detect directly and in situ the status of automotive exhaust gas catalysts by monitoring the electrical properties of the catalyst coating itself are overviewed. Examples included in this review are the in-situ determination of the electrical impedance of three-way catalysts based on ceria-zirconia solutions and of lean NO(x) traps of earth-alkaline based coatings, as well as appro...

The paper presents objectives and results of a series of case studies in computer support for diagnosis, failure mode and effects analysis, and the creation of repair manuals in the domain of automotive systems. Model-based prediction and diagnosis reflect the requirements of these tasks. More specifically, qualitative models of system components are necessary for both capturing the available k...

Introduction Reforming (i.e., partial oxidation, steam reforming, or autothermal reforming (ATR)) of infrastructure fuels, such as natural gas, liquefied petroleum gas, gasoline, or diesel, is one approach being investigated for distributed H2 production for use with fuel cell systems being developed for automotive and stationary applications. One area of interest is reforming gasoline either o...

The formation of vortex or ‘string’ cavitation has been visualised at pressures up to 2000 bar in an automotive-sized optical diesel fuel injector nozzle. The multi-hole nozzle geometry studied allowed observation of the hole-to-hole vortex interaction and, in particular, that of a bridging vortex in the sac region between the holes. Above a threshold Reynolds number, their formation and appear...

An increase in unleaded gasoline consumption causes growth of enussion of monocyclic aromatic hydrocarbons (MAlIs) such as benzene and its a1ky1ated derivatives: toluene, ethylbenzene, isopropylbezene, and trimethylbenzenes (TMB). These compounds are highly toxic in both, direct andindirect effects onliving organisms. This paper describes the applied method of measurements and presents results ...