Abgassteuerungssystem und Abgassteuerungsverfahren für Verbrennungsmotor

Details

Veröffentlichungs-Nr.

EP2581579

Aktenzeichen

EP12187087

Anmeldetag

3. Oktober 2012

Veröffentlichung

22. Februar 2017

Erteilung

22. Februar 2017

Rechtsraum

EP

IPC

F01N9/00F02D41/14

Abstract

An ECU (100) includes: a differential pressure detecting unit (115) that detects a filter differential pressure (”PA) obtained by subtracting a pressure downstream of a DPF (22) from a pressure upstream of the DPF (22); a deposition amount estimating unit (116) that estimates an amount of deposition (QP) of PM trapped in the DPF (22) on the basis of the filter differential pressure (”PA); an excessive deposition determination unit (118) that determines that the amount of deposition of PM trapped in the DPF (22) is abnormal when the amount of deposition (QP) of PM, estimated by the deposition amount estimating unit (116), is larger than or equal to a preset excessive deposition determination value (QPth); a vaporization determination unit (113) that determines whether moisture absorbed in the DPF (22) has vaporized; and a prohibiting unit (114) that prohibits the deposition amount estimating unit (116) from estimating the amount of deposition (QP) when the vaporization determination unit (113) determines that moisture absorbed in the DPF (22) has not vaporized yet.

Anmelder

Firma

TOYOTA JIDOSHA KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete