Internal combustion engine pneumatic state estimator

Details Internal combustion engine pneumatic state estimator Internal combustion engine pneumatic state estimator

1997-05-30

1998-12-08

Solis, Erick R.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123677, 701108, 731182, F02D 4118

Patent

active

058456279

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.

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SAE Paper, 92023, Nonlinear, Closed Loop, SI Engine Control Observers, Hendricks et al, Dated Feb. 24-28.
U.S. application No. 08/759276, Maloney, filed Dec. 2, 1996.
U.S. application No. 08/759277, Maloney, filed Dec. 2, 1996.
U.S. application No. 08/862074, Maloney, filed May 22, 1997.

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