Online optimization of automotive engine coldstart hydrocarbon emissions control at idle conditions

摘要: In this work, we propose a model-based scheme for the online optimization of coldstart hydrocarbon emission control strategy an automotive spark-ignited engine during its idle operating conditions. First, existing schemes to reduce emissions are reviewed and classified. Then, proposed related control-oriented model validated by experimental data introduced. At heart suggested scheme, there is new optimal problem formulation that can be solved rapidly using Pontryagin’s minimum principle. This based on redefined objective function with weighted terms key variables, is, engine-out exhaust gas temperature. The weighting numbers these dominant factors in tuned such optimum solution becomes close cumulative tailpipe emissions. use re...