ENGINE CONTROL METHOD OF CONSTRUCTION MACHINE

Title:

ENGINE CONTROL METHOD OF CONSTRUCTION MACHINE

Document Type and Number:

WIPO Patent Application WO/2013/100218

Kind Code:

A1

Abstract:

Disclosed is an engine control method which forces the operation of an engine to stop if an attachment device or the like malfunctions against the will of a driver while operating an excavator or the like. The engine control method according to the present invention comprises: a first step of determining whether pilot signal pressure exceeds set first pressure, wherein the pilot signal pressure is detected when a manipulation lever and/or a travel pedal which respectively operate an attachment device, a swing device and a travel device is operated; and a second step of determining whether pressure at the outlet side of a main hydraulic pump exceeds set second pressure. If the detected pilot signal pressure does not exceed the first pressure in the first step and the detected pressure of the main hydraulic pump exceeds the second pressure in the second step, the operation of an engine is controlled to be forcedly stopped according to the control signal of a controller.

Inventors:

YUN SEONG-GEUN (KR)
PARK SUNG-BOK (KR)
JEE SE-RIB (KR)

Application Number:

PCT/KR2011/010209

Publication Date:

July 04, 2013

Filing Date:

December 28, 2011

Export Citation:

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Assignee:

VOLVO CONSTR EQUIP AB (SE)
YUN SEONG-GEUN (KR)
PARK SUNG-BOK (KR)
JEE SE-RIB (KR)

International Classes:

F02D17/04; F02D11/02; F02D29/00; F02D41/04

Foreign References:

JP2005002804A	2005-01-06
KR20110091467A	2011-08-11
JP2001041069A	2001-02-13
JP2005201133A	2005-07-28

Other References: