| 发明名称 |
VOLUMETRIC EFFICIENCY COMPENSATION FOR DUAL INDEPENDENT CONTINUOUSLY VARIABLE CAM PHASING |
| 摘要 |
A method of estimating the volumetric efficiency of an internal combustion engine (10) having independent intake and exhaust cam phase variation, compensates a nominal or base estimate of the volumetric efficiency in two successive stages: an intake stage (122), and an exhaust stage (124). The intake stage (122) compensates for the effects of intake cam variation, using the base volumetric efficiency estimate as a starting point; and the exhaust stage (124) compensates for the effects of exhaust cam variation, using the output of the intake stage as a starting point. The volumetric efficiency so compensated is then used to accurately compute the mass intake airflow for engine control purposes. |
| 申请公布号 |
WO0142641(A1) |
申请公布日期 |
2001.06.14 |
| 申请号 |
WO2000US32992 |
申请日期 |
2000.12.06 |
| 申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
REED, DENNIS, C.;MALONEY, PETER, J.;PFEIFFER, JEFFREY, M. |
| 分类号 |
F02D45/00;F01L1/34;F01L9/02;F01L9/04;F02D13/02;F02D41/00;F02D41/14;F02D41/18;F02D41/24;F02M13/02 |
主分类号 |
F02D45/00 |
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