Research Article
On Cyclic Variability in a Residual Effected HCCI Engine with Direct Gasoline Injection during Negative Valve Overlap
Table 2
Overall in-cylinder parameters.
| | Parameter | Case 1 | Case 2 | Case 3 |
| | (—) | 1.034 | 1.097 | 1.188 | | (mg) | 15.02 | 11.78 | 9.60 | | (mg) | 228.7 | 190.1 | 167.8 | | (mg) | 152.4 | 181.7 | 205.6 | | CoV () (%) | 0.24 | 0.35 | 0.52 | | CoV () (%) | 2.04 | 1.66 | 2.63 | | CoV () (%) | 7.99 | 7.22 | 7.48 | | EGR (%) | 38.5 | 47.4 | 53.7 | | (MPa) | 0.346 | 0.278 | 0.215 | | (MPa) | −0.052 | −0.042 | −0.025 | | (MPa) | 0.398 | 0.32 | 0.24 | | CoV () (%) | 3.93 | 3.53 | 4.01 | | (°CA) | 367.8 | 364.9 | 359.3 | | (°CA) | 372.3 | 369.2 | 362.9 | | (°CA) | 377 | 374.1 | 367.1 | | () (°CA) | 3.91 | 3.05 | 2.42 |
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