INTERNAL COMBUSTION ENGINE CONTROL DEVICE

Title:

INTERNAL COMBUSTION ENGINE CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2010/074214

Kind Code:

A1

Abstract:

In an internal combustion engine control device, an internal combustion engine (10) is started when a throttle valve (14) is in an idle open degree. If the idle open degree is still detected after this, the rotation numbers (NE) of the internal combustion engine is within a predetermined range (NEb) set according to the target idle rotation numbers (NEa) (S16, S126). When the rotation numbers of the internal combustion engine is judged to be out of the predetermined range, the open degree of the idle rotation numbers control valve (22) is feedback-controlled via a stepping motor (24) so that the rotation numbers of the internal combustion engine is consistent with the target idle rotation numbers (S38). If the rotation numbers of the internal combustion engine is not converted into the predetermined range when a predetermined time (Tc) has elapsed after execution of the feedback control, it is determined that any abnormality has happened in the idle rotation numbers control valve (S46, S400-S404). Thus, the abnormality of the idle rotation numbers control valve can be detected with a simple configuration at a reasonable cost.

More Like This:

JPH0738665	[Name of invention] Output control device during low-load operation of an internal combustion engine for a vehicle
JP2003247446	IDLING ROTATION SPEED CONTROLLER OF INTERNAL COMBUSTION ENGINE

Inventors:

ISHIKAWA SHINICHI (JP)
SUGIMORI SHIGEHIKO (JP)
TOKUGAWA KAZUHITO (JP)

Application Number:

PCT/JP2009/071562

Publication Date:

July 01, 2010

Filing Date:

December 25, 2009

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KEIHIN CORP (JP)
ISHIKAWA SHINICHI (JP)
SUGIMORI SHIGEHIKO (JP)
TOKUGAWA KAZUHITO (JP)

International Classes:

F02D41/16; F02D9/02; F02D45/00

Foreign References:

JPH0777093A	1995-03-20
JPH10103140A	1998-04-21
JPH09203340A	1997-08-05
JPS6469754A	1989-03-15
JPH07166941A	1995-06-27
JPH06280656A	1994-10-04
JP2000345897A	2000-12-12

Attorney, Agent or Firm:

YOSHIDA YUTAKA (JP)
Yoshida 豊 (JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: METHOD FOR ADHERING NANOFIBER SHEET

Next Patent: HYDROGENATION ISOMERIZATION CATALYST, METHOD FOR PRODUCING SAME, METHOD FOR DEWAXING HYDROCARBON OIL...