EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE

(19)

(11)

EP 2 557 283 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 153(4) EPC

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	10.04.2013 Bulletin 2013/15

(43)	Date of publication:
	13.02.2013 Bulletin 2013/07

(21)	Application number: 10849436.0

(22)	Date of filing: 07.04.2010

(51)

International Patent Classification (IPC):

F01N 3/02^(2006.01)

(86)	International application number:
	PCT/JP2010/056323

(87)	International publication number:
	WO 2011/125192 (13.10.2011 Gazette 2011/41)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(71)	Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
	Toyota-shi, Aichi-ken, 471-8571 (JP)

(72)	Inventor:
	HIRANO, Takahiro Toyota-shi, Aichi-ken, 471-8571 (JP)

(74)	Representative: Kuhnen & Wacker
	Patent- und Rechtsanwaltsbüro Prinz-Ludwig-Straße 40A 85354 Freising 85354 Freising (DE)

(54)	EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE

(57) The present invention provides a technology which is capable of specifying a deviation in a PM trapped quantity between the central portion and the peripheral portion in the radial direction of a particulate filter. In order to achieve this object, the invention is to measure a PM quantity contained in an exhaust gas flowing out from the central portion in the radial direction of the particulate filter, and a PM quantity contained in the exhaust gas flowing out from the peripheral portion in the radial direction of the particulate filter, and, from these results, obtains the PM trapped quantity at the central portion and the PM trapped quantity at the peripheral portion.