METHOD OF CONTROLLING EXHAUST GAS PURIFICATION SYSTEM, AND EXHAUST GAS PURIFICATION SYSTEM

Title:

METHOD OF CONTROLLING EXHAUST GAS PURIFICATION SYSTEM, AND EXHAUST GAS PURIFICATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2006/123512

Kind Code:

A1

Abstract:

A method (1) of controlling an exhaust gas purification system has a DPF device (12), where a regeneration control means (35C) has a forced regeneration mode and an arbitrary regeneration mode. In the forced regeneration mode, when it is determined by a regeneration time determination means (34C) that it is time to regenerate a filter (12b) and the temperature of exhaust gas is low, the exhaust gas temperature is raised by an exhaust gas temperature raising means (351C) to forcibly regenerate the filter (12b). In the arbitrary regeneration mode, the filter is arbitrarily regenerated based on the result of detection by a collection amount detection means (32C). While the temperature of exhaust gas is raised in the arbitrary regeneration mode by the exhaust gas temperature raising means (351C), operation of a compressor (41) of a vehicle air conditioner is stopped. By this, the temperature (Tw) of engine (10) coolant is prevented from abnormally rising while the DPF device (12) is forcibly recovered by arbitrary regeneration.

Inventors:

IIZUKA AKIRA (JP)
UCHIDA NAOMI (JP)
TSUCHIDA MINORU (JP)
MASHIKO TATSUO (JP)

Application Number:

PCT/JP2006/308540

Publication Date:

November 23, 2006

Filing Date:

April 24, 2006

Export Citation:

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Assignee:

ISUZU MOTORS LTD (JP)
IIZUKA AKIRA (JP)
UCHIDA NAOMI (JP)
TSUCHIDA MINORU (JP)
MASHIKO TATSUO (JP)

International Classes:

B01D53/94; F01N3/02; F01N3/24; F01P7/04; F02D9/04; F02D41/04; F02D43/00

Foreign References:

JP2005120872A	2005-05-12
JP2003336523A	2003-11-28

Other References: