Combustion Engine Models for Hybrid Vehicle System Development

Sammanfattning: This report is part of a project that is called Generic hybrid systems. Its objective is to simulate and investigate electric hybrid drive trains. The goal of this work has been to develop combustion engine models that are computer efficient, but still has the potential of giving both qualitative and quantitative results. For instance, if the model is run in a less ideal manner the model will show an increase in both fuel consumption and exhaust emissions. Both a spark ignition DSI or OttoE engine as well as a compression ignition DCI or DieselE engine model have been developed. The SI­engine model has been partially validated through the use of transient testing. The thesis also contains a proof of concept study that is called TES ­ Transient Emission Sampling, which is a method for measuring exhaust emissions during transients.