Table 2.
Summary of Experimental Design and Test Conditions for the Two Engines
| test | engine | fuel | calibration | BMEP (kPa) | speed (rpm) | aftertreatment | power (kW) | EGR (%) | exhaust temperature (°C) | injeciton timing (°BTDC) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1.7 L | ULSD | 2002 | idle | 800 | none | 0 | 27 | 129 | 3.0 |
| 2 | General | 200 | 1500 | none | 4 | 20 | 210 | 3.9 | ||
| 3 | Motors | 600 | 1500 | none | 13 | 17 | 368 | 1.2 | ||
| 4 | 900 | 2500 | none | 32 | 0 | 434 | 5.6 | |||
| 5 | idle | 800 | DOC | 0 | 27 | 126 | 2.6 | |||
| 6 | 200 | 1500 | DOC | 4 | 20 | 207 | 7.9 | |||
| 7 | 600 | 1500 | DOC | 13 | 17 | 372 | 1.4 | |||
| 8 | 900 | 2500 | DOC | 32 | 0 | 448 | 17.7 | |||
| 9 | B20 | 2002 | idle | 800 | none | 0 | 27 | 125 | 3.2 | |
| 10 | 200 | 1500 | none | 4 | 20 | 211 | 4.3 | |||
| 11 | 600 | 1500 | none | 13 | 17 | 368 | 1.8 | |||
| 12 | 900 | 2500 | none | 32 | 0 | 439 | 9.2 | |||
| 13 | idle | 800 | DOC | 0 | 27 | 127 | 2.8 | |||
| 14 | 200 | 1500 | DOC | 4 | 20 | 213 | 5.9 | |||
| 15 | 600 | 1500 | DOC | 13 | 17 | 372 | 1.4 | |||
| 16 | 900 | 2500 | DOC | 32 | 0 | 444 | 18.8 | |||
| 17 | 6.4 L | ULSD | 2004 | idle | 665 | none | 0 | 2 | 74 | –3.5 |
| 18 | Ford | 600 | 1500 | none | 49 | 10 | 265 | –3.5 | ||
| 19 | 900 | 2500 | none | 120 | 19 | 320 | –3.5 | |||
| 20 | 2007 | idle | 665 | DOC + DPF | 0 | 2 | 59 | –5.0 | ||
| 21 | 900 | 2500 | DOC + DPF | 120 | 15 | 319 | 3.0 | |||
| 22 | B20 | 2004 | idle | 665 | none | 0 | 2 | 72 | –3.5 | |
| 23 | 600 | 1500 | none | 49 | 10 | 262 | –3.5 | |||
| 24 | 900 | 2500 | none | 120 | 19 | 314 | –3.5 | |||
| 25 | 2007 | idle | 665 | DOC + DPF | 0 | 2 | 62 | –5.0 | ||
| 26 | 900 | 2500 | DOC + DPF | 120 | 15 | 316 | 3.0 |