DEVICE AND METHOD FOR CALCULATING WORK LOAD OF ENGINE

WIPO Patent Application WO/2006/035842

A1

A device and method for calculating the work load of an engine more efficiently and accurately. The device for calculating the work load of an engine comprises a means for determining a desired frequency component to calculate the work load of the engine obtained through frequency decomposition of the volume variation rate of the engine. The device further comprises a first calculating means for calculating a first correlation coefficient between the volume variation rate and a reference signal composed of a frequency corresponding to the determined component, and a second calculating means for calculating a second correlation coefficient between the cylinder inner pressure of the engine and a reference signal composed of a frequency corresponding to the determined component. The work load of the engine is calculated using the first and second correlation coefficients.

SHINOZAKI KOICHIRO (JP)
OKUBO KATSURA (JP)
YASUI YUJI (JP)
SATO MASAHIRO (JP)
IKOMA KOICHI (JP)

PCT/JP2005/017894

April 06, 2006

September 28, 2005

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HONDA MOTOR CO LTD (JP)
SHINOZAKI KOICHIRO (JP)
OKUBO KATSURA (JP)
YASUI YUJI (JP)
SATO MASAHIRO (JP)
IKOMA KOICHI (JP)

F02D45/00; F02D15/02

JP8020339B2
JPH0734958A	1995-02-03
JPH0820339B2	1996-03-04

See also references of EP 1801400A4
NAGASHIMA K ET AL.: "New Indicated Mean Effective Pressure Measuring Method and Its Applications", JSAE REVIEW, SOCIETY OF AUTOMOTIVE ENGINEERS OF JAPAN, TOKYO, vol. 111, no. 3, 1 January 2002 (2002-01-01), pages 2982 - 2987

Okada, Fushimi And Hirano PC. (2-7 Kudan-minami 3-chom, Chiyoda-ku Tokyo, JP)

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