CONTROLLER FOR INTERNAL COMBUSTION ENGINE

Title:

CONTROLLER FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP2016217344

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a controller for an internal combustion engine capable of suppressing deterioration in combustion without spoiling a feeling of speed reduction at a torque reduction request during introduction of EGR.SOLUTION: An internal combustion engine comprises an EGR device, and can be configured to perform operation at a first air fuel ratio and operation at a second air fuel ratio leaner than the first air fuel ratio. When decreasing the amount of air flowing in a combustion chamber and also decreasing an EGR rate on receiving a predetermined torque reduction request to the internal combustion engine, a controller (ECU) allows the operation at the first air fuel ratio if an EGR rate right before the torque reduction request is sent is smaller than a first threshold (for example, 15%) or stratified charge combustion operation at the second air fuel ratio if equal to or larger than the first threshold.SELECTED DRAWING: Figure 7

More Like This:

JP6354783	Internal combustion engine control device
JPS6069341	[Title of the device] Throttle valve driving device
JP3274914	COMBUSTION CONTROLLER OF ENGINE

Inventors:

SADAKANE SHINJI

Application Number:

JP2016049460A

Publication Date:

December 22, 2016

Filing Date:

March 14, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOYOTA MOTOR CORP

International Classes:

F02D41/12; F02D21/08; F02D43/00; F02M26/00; F02P5/15

Domestic Patent References:

JP2010053716A	2010-03-11
JPH1068343A	1998-03-10
JP2001152914A	2001-06-05
JP2004316482A	2004-11-11

Foreign References:

WO2013111273A1

2013-08-01

Attorney, Agent or Firm:

Hideki Takahashi
Mamoru Takada
Hidekazu Onishi

Previous Patent: How to attach an accessory device and accessories to a turbine engine

Next Patent: Valve device