OPERATION METHOD OF ENGINE DURING ABNORMAL COMBUSTION AND OPERATION CONTROLLER

Title:

OPERATION METHOD OF ENGINE DURING ABNORMAL COMBUSTION AND OPERATION CONTROLLER

Document Type and Number:

WIPO Patent Application WO/2008/038827

Kind Code:

A1

Abstract:

An operation method of an engine during abnormal combustion in which operation control of the engine can be performed appropriately after fuel supply interruption to a heavy knock-inflicted cylinder without stopping the engine immediately upon detection of occurrence of heavy knock. An operation controller during abnormal combustion is also provided. The operation method of an engine during abnormal combustion by which the engine is stopped or an output limit operation is performed upon occurrence of abnormal combustion in the engine having a plurality of cylinders capable of correcting the combustion state stepwise or continuously by fuel regulation including fuel interruption, characterized in that an abnormal combustion simulation signal obtained by calculating the abnormal combustion state of the engine simulatively is preset, combustion state detection signal of a cylinder selected sequentially from among the plurality of cylinders is compared with the abnormal combustion simulation signal in order to judge occurrence of abnormal combustion in the selected cylinder, and then fuel supply to the selected cylinder is interrupted.

Inventors:

SUZUKI HAJIME (JP)
SAEKI YASUHIRO (JP)
ISHIDA ICHIROU (JP)

Application Number:

PCT/JP2007/069325

Publication Date:

April 03, 2008

Filing Date:

September 26, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI HEAVY IND LTD (JP)
SUZUKI HAJIME (JP)
SAEKI YASUHIRO (JP)
ISHIDA ICHIROU (JP)

International Classes:

F02D41/22; F02D19/02; F02D45/00

Foreign References:

JPH1193757A	1999-04-06
JPH11287140A	1999-10-19
JP2005105974A	2005-04-21
JP2005069042A	2005-03-17
JPH0211731A	1990-01-16

Other References: