Steuergerät und Steuerungsverfahren für Verbrennungsmotor

Details

Veröffentlichungs-Nr.

EP3546731

Aktenzeichen

EP19161369

Anmeldetag

7. März 2019

Veröffentlichung

24. Februar 2021

Erteilung

24. Februar 2021

Rechtsraum

EP

IPC

F02D41/02F02D41/14F02D41/00

Abstract

A controller for an internal combustion engine is configured to execute a dither control process and a filter temperature calculating process. In the dither control process, on condition that an execution request for a regeneration process of the filter is made, fuel injection valves are operated such that at least one of the cylinders is a lean combustion cylinder, and at least another one of the cylinders is a rich combustion cylinder. The filter temperature calculating process is a process of calculating the temperature of the filter to be lower when a target value of an average value of the exhaust air-fuel ratio in a predetermined period by the dither control is leaner than the stoichiometric air-fuel ratio than when the target value is the stoichiometric air-fuel ratio.

Anmelder

Firma

TOYOTA JIDOSHA KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete