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:
Oct. 08, 2013
Filed:
Nov. 21, 2006
Kenji Hagio, Fujisawa, JP;
Takashi Ikeda, Fujisawa, JP;
Shigeru Ikeda, Fujisawa, JP;
Takao Onodera, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Kenji Hagio, Fujisawa, JP;
Takashi Ikeda, Fujisawa, JP;
Shigeru Ikeda, Fujisawa, JP;
Takao Onodera, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
In in-cylinder fuel multi-injection conducted during forced regeneration of a diesel particulate filter ('DPF'), control maps for multi-injection are constructed so as to be different for a first gas temperature raising control, which raises a catalyst temperature index temperature to a first judgment temperature only by multi-injection, and for a subsequent second exhaust gas temperature raising control, wherein post-injection is conducted in addition to multi-injection to raise a filter temperature index temperature to a second judgment temperature. In so doing, exhaust gas flowing into the DPF can be rapidly raised in temperature when performing forced regeneration of the DPF, thereby shortening the forced regeneration time and improving fuel consumption for forced regeneration.