Emissionssteuerungssystem und Verfahren für einen Verbrennungsmotor

Details

Veröffentlichungs-Nr.

EP3133259

Aktenzeichen

EP16184636

Anmeldetag

18. August 2016

Veröffentlichung

25. Juli 2018

Erteilung

25. Juli 2018

Rechtsraum

EP

IPC

F01N3/08F01N3/36F01N9/00

Abstract

An emission control system that executes a regeneration control such that a catalyst device (30) recovers from poisoning, in a first control mode in which a temperature raising operation and a releasing operation are alternately repeated and in a second control mode in which the temperature raising operation and the releasing operation are alternately repeated. In the first control mode, the temperature raising operation is performed by post injection from an injector (19). In the second control mode, the temperature raising operation is performed by adding fuel into exhaust gas from an addition valve (29) such that the HC concentration in exhaust gas oscillates with an amplitude within a first specified range and a cycle within a second specified range. The control mode is switched from the first control mode to the second control mode during the regeneration control.

Anmelder

Firmen

TOYOTA JIDOSHA KABUSHIKI KAISHA
Toyota Jidosha Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete