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1. (WO2006123512) METHOD OF CONTROLLING EXHAUST GAS PURIFICATION SYSTEM, AND EXHAUST GAS PURIFICATION SYSTEM

Pub. No.:    WO/2006/123512    International Application No.:    PCT/JP2006/308540
Publication Date: Nov 23, 2006 International Filing Date: Apr 24, 2006
IPC: F01N 3/02
B01D 53/94
F01N 3/24
F01P 7/04
F02D 9/04
F02D 41/04
F02D 43/00
Applicants: ISUZU MOTORS LIMITED
いすゞ自動車株式会社
IIZUKA, Akira
飯塚 彰
UCHIDA, Naomi
内田 直実
TSUCHIDA, Minoru
土田 穣
MASHIKO, Tatsuo
益子 達夫
Inventors: IIZUKA, Akira
飯塚 彰
UCHIDA, Naomi
内田 直実
TSUCHIDA, Minoru
土田 穣
MASHIKO, Tatsuo
益子 達夫
Title: METHOD OF CONTROLLING EXHAUST GAS PURIFICATION SYSTEM, AND EXHAUST GAS PURIFICATION SYSTEM
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.