Internal combustion engine pneumatic state estimator
US5845627A · kind A · utility
45Cited by
6References
11Claims
0Family size
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Key dates
| Filing date | May 30, 1997 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | May 30, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/1433
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Pneumatic state estimation operations for estimating gas flow and pressure at pneumatic nodes and flow branches within a reticulated engine system for engine control and diagnostic operations resolves net flow imbalances at specific pneumatic nodes and attributes such imbalances to inaccuracies in pneumatic state estimation. Inaccuracies are corrected as a function of a prior pneumatic state estimate and of a net flow imbalance at the node or a neighboring node for precision engine control and diagnostic operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.