Steuerungsvorrichtung eines Nachbehandlungssystems, Nachbehandlungssystem, Verfahren zur Steuerung des Nachbehandlungssystems und Computerprogramm

Details

Veröffentlichungs-Nr.

EP3995677

Aktenzeichen

EP21206487

Anmeldetag

4. November 2021

Veröffentlichung

12. November 2025

Erteilung

12. November 2025

Rechtsraum

EP

IPC

F01N3/20F01N9/00F01N13/00F01N3/10

Abstract

In an after-treatment system configured to convert a harmful substance in exhaust emission using an additive, an object is to allow for supply of the additive by taking into account a variation in a supply portion serving to supply the additive.There is provided a control device of an after-treatment system, comprising: an outlet concentration acquirer configured to obtain a concentration of a harmful substance at an outlet of a main flow path; a first estimator configured to estimate a first adsorption amount that is an adsorption amount of an additive adsorbed to a catalyst, by using a mathematical model; a second estimator configured to estimate a second adsorption amount that is an adsorption amount of the additive in the catalyst in consideration of the concentration of the harmful substance obtained by the outlet concentration acquirer, and a gain value that indicates a variation in a supply portion in consideration of the concentration of the harmful substance obtained by the outlet concentration acquirer, from the first adsorption amount and a gain value indicating a variation in the supply portion, by using a state estimation theory; and a supply controller configured to control supply of the additive in the supply portion by using the second adsorption amount and the gain value estimated by the second estimator.

Anmelder

Firmen

Kabushiki Kaisha Toyota Chuo Kenkyusho
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Land

🇯🇵 Japan

Fachgebiete