CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Title:

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2001/023726

Kind Code:

A1

Abstract:

An electronic control unit (10) of an internal combustion engine (1) sets a target throttle valve opening based on the manipulated variable of an accelerator pedal and starts an electronic-controlled throttle valve (16) driving after a preset delay time, to thereby accurately predict an actual throttle valve opening at a cylinder suction valve closing and predict a suction air filling volume into the cylinder. In an engine provided with a variable valve timing mechanism (50), the ECU (10) predicts, in addition, a target throttle valve opening at a suction valve closing, predicts, based on the predicted target opening, an actual valve timing at a suction valve closing, and predicts a suction air filling volume into the cylinder at a cylinder suction valve closing based on the above predicted throttle valve opening and the predicted valve timing. Accordingly, it is possible to accurately predict a suction air filling volume even in a variable-valve-timing engine.

Inventors:

KANAMARU MASANOBU (JP)

Application Number:

PCT/JP2000/006677

Publication Date:

April 05, 2001

Filing Date:

September 27, 2000

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
KANAMARU MASANOBU (JP)

International Classes:

F02D9/02; F02D9/10; F02D11/10; F02D13/02; F02D33/02; F02D37/02; F02D41/00; F02D41/04; F02D41/18; F02D41/22; F02D41/36; F02D43/00; F02D45/00; (IPC1-7): F02D9/02; F02D13/02; F02D43/00; F02P5/15

Foreign References:

JPH1047118A	1998-02-17
JPH10339205A	1998-12-22
JPH1162660A	1999-03-05
JPH11229951A	1999-08-24

Other References: