METHOD AND APPARATUS FOR MEASURING AND CORRECTING AN IN-CYLINDER PRESSURE MEASUREMENT

Title:

METHOD AND APPARATUS FOR MEASURING AND CORRECTING AN IN-CYLINDER PRESSURE MEASUREMENT

Document Type and Number:

WIPO Patent Application WO/2005/108763

Kind Code:

A2

Abstract:

A method and apparatus for obtaining a corrected engine operational parameter value, using cylinder pressure information. A real pressure sensor signal output from a sensor (41D) is compared for discrepancies with an estimated output from engine pressure model (42A), including an engine model and a sensor model. The engine pressure model is corrected dependent on the discrepancy and the model engine pressure is then taken as the output value.

Inventors:

MILLER PETER (GB)
TRUSCOTT ANTHONY JOHN (GB)

Application Number:

PCT/GB2005/001631

Publication Date:

November 17, 2005

Filing Date:

April 28, 2005

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Assignee:

RICARDO UK LTD (GB)
MILLER PETER (GB)
TRUSCOTT ANTHONY JOHN (GB)

International Classes:

F02D35/02; F02D41/14; (IPC1-7): F02D41/14

Foreign References:

US5353764A

1994-10-11

Attorney, Agent or Firm:

Roberts, Gwilym (20 Red Lion Street, London WC1R 4PJ, GB)

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