Invention Grant
- Patent Title: Control method of exhaust emission purification system and exhaust emission purification system
- Patent Title (中): 废气净化系统和废气净化系统的控制方法
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Application No.: US12449052Application Date: 2007-12-19
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Publication No.: US08453432B2Publication Date: 2013-06-04
- Inventor: Takashi Haseyama , Akihiro Inamura , Shinji Gotou , Hitoshi Satou , Tatsuo Mashiko , Akira Hirata , Noriyuki Tsukamoto , Futoshi Nakano , Kouichirou Yomogida
- Applicant: Takashi Haseyama , Akihiro Inamura , Shinji Gotou , Hitoshi Satou , Tatsuo Mashiko , Akira Hirata , Noriyuki Tsukamoto , Futoshi Nakano , Kouichirou Yomogida
- Applicant Address: JP Tokyo
- Assignee: Isuzu Motors Limited
- Current Assignee: Isuzu Motors Limited
- Current Assignee Address: JP Tokyo
- Agency: Staas & Halsey LLP
- Priority: JP2007-014598 20070125
- International Application: PCT/JP2007/074423 WO 20071219
- International Announcement: WO2008/090695 WO 20080731
- Main IPC: F01N3/00
- IPC: F01N3/00

Abstract:
An exhaust emission purification system having a controller performing exhaust temperature rise control including multistage delay injection control for raising the exhaust temperature, if the exhaust gas temperature is lower than a predetermined judgment temperature, and performing particulate matter combustion removal control including post injection control, if the exhaust gas temperature becomes equal to or higher than the predetermined judgment temperature, when forced regeneration of a diesel particulate filter is carried out. The multistage delay injection control is forbidden when an idle operation state of an internal combustion engine occurs for a predetermined judgment time and a power take-off device is operating. A control method for exhaust emission purification is also provided sustaining a diesel particulate filter for purifying particulate matter in exhaust gas by executing forced regeneration while avoiding variation in engine speed, even if the power take-off device is operating during an extended idling operation.
Public/Granted literature
- US20100012105A1 CONTROL METHOD OF EXHAUST EMISSION PURIFICATION SYSTEM AND EXHAUST EMISSION PURIFICATION SYSTEM Public/Granted day:2010-01-21
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