The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2013
Filed:
Dec. 19, 2007
Takashi Haseyama, Fujisawa, JP;
Akihiro Inamura, Fujisawa, JP;
Shinji Gotou, Fujisawa, JP;
Hitoshi Satou, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Akira Hirata, Fujisawa, JP;
Noriyuki Tsukamoto, Fujisawa, JP;
Futoshi Nakano, Fujisawa, JP;
Kouichirou Yomogida, Fujisawa, JP;
Takashi Haseyama, Fujisawa, JP;
Akihiro Inamura, Fujisawa, JP;
Shinji Gotou, Fujisawa, JP;
Hitoshi Satou, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Akira Hirata, Fujisawa, JP;
Noriyuki Tsukamoto, Fujisawa, JP;
Futoshi Nakano, Fujisawa, JP;
Kouichirou Yomogida, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
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.