HCCI combustion control extremely challenging. Characterization of cyclic variations of various combustion parameters is … consecutive engine cycles were acquired for each test condition. From this large volume of experimental data collected, cyclic … variations of various combustion parameters were analyzed. To evaluate the cycle-to-cycle variations of HCCI combustion …

cycles included is low, then the results may be misleading due to cyclic variations of in-cylinder pressure. The desired … level of accuracy can only be obtained if the number of cycles is increased with increasing cyclic variations. The number of …, cyclic variations, cycle simulation, etc. There is no general agreement about how many cycle should be taken to obtain the …

, and to decrease exhaust emissions and fuel consumption. However, as the mixture leans, cyclic variations increase. Cyclic … as clean, economical and abundant fuels can improve the lean operating limits and decrease the cyclic variations … engine in terms of lean operation, and focuses on the cyclic variations and exhaust emissions. The results of this study …