Nonlinear Model-based Control of Automotive Powertrains

TL;DRAbstract

In recent years the focus of powertrain control has shifted perspective from control of the individual powertrain components to control of the complete powertrain, so-called integrated powertrain control. The idea presented in this thesis is to view the powertrain as one single control object and to used the engine as a torque actuator to the rest of the driveline. The investigated powertrain consists of a diesel engine with a variable geometry turbocharger, an automated manual transmission, exible driveshafts and wheels and chassis to make the vehicle complete. The vehicle in focus is a heavy duty truck. The power a diesel engine can generate is limited by the amount of fuel that can be burnt effciently. The combustion effciency is determined mainly by the amount of air that is available for combustion. An insufficientient amount of air results in in- creased particulate emissions and visible smoke, while a surplus of air results in NOx emissions. This means that active engine control

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