Offline and Real-Time Optimization of EGR Rate and Injection Timing in Diesel Engines

摘要: New methodologies have been developed to optimize EGR rate and injection timing in diesel engines, with the aim of minimizing fuel consumption (FC) NOx engine-out emissions. The approach entails application a recently control-oriented engine model, which includes simulation heat release rate, in-cylinder pressure brake torque, as well emission levels. model was coupled C-class vehicle order derive speed torque demand for several driving cycles, including NEDC, FTP, AUDC, ARDC AMDC. optimization process based on minimization target function, takes into account FC selected control variables problem are main pulse position valve, considered most influential parameters both gear number has also optimization. One benchmark tool, is dynamic programming technique, one real-time implements static method, process. A new mathematical technique introduced applied decrease computational time optimizers great extent. It verified that method potential being implemented unit (ECU), realize an onboard