| US 7,469,181 B2 | ||
| High load operation in a homogeneous charge compression ignition engine | ||
| Kevin P. Duffy, Metamora, Ill. (US); Andrew J. Kieser, Morton, Ill. (US); Michael P. Liechty, Chillicothe, Ill. (US); William L. Hardy, Peoria, Ill. (US); Anthony Rodman, Chillicothe, Ill. (US); and Carl-Anders Hergart, Peoria, Ill. (US) | ||
| Assigned to Caterpillar Inc., Peoria, Ill. (US) | ||
| Filed on Jan. 29, 2007, as Appl. No. 11/699,523. | ||
| Prior Publication US 2008/0178848 A1, Jul. 31, 2008 | ||
| Int. Cl. G06F 19/00 (2006.01); F02M 25/07 (2006.01); F02B 47/08 (2006.01); F02B 75/04 (2006.01); F02B 33/44 (2006.01) | ||
| U.S. Cl. 701—108 [123/305; 123/316; 123/568.14; 123/568.21; 701/115; 60/605.2] | 20 Claims |
| 1. A method of setting up a homogenous charge compression ignition engine, comprising the steps of:
identifying a combination of compression ratio and exhaust gas percentage that satisfy a pressure rise rate limit and a peak
cylinder pressure limit;
performing the identifying step across an engine operating range at a plurality of combinations of speed and load; and
mapping the identified combinations of compression ratio and exhaust gas percentage to combinations of speed and load; and
storing the mapping on a medium linked to an electronic engine controller.
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