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:
Sep. 03, 2013
Filed:
May. 14, 2007
Takao Onodera, Fujisawa, JP;
Naofumi Ochi, Fujisawa, JP;
Shigeru Ikeda, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Takao Onodera, Fujisawa, JP;
Naofumi Ochi, Fujisawa, JP;
Shigeru Ikeda, Fujisawa, JP;
Tatsuo Mashiko, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
When an internal combustion engine is in a low rotation speed driving condition, a duration of the low rotation speed driving condition is measured, and when this duration exceeds a predetermined time, the forced regeneration control is performed. Thus, even when an exhaust flow rate is small and an estimation of a particulate matter accumulated amount due to a pressure difference between front and back sides of a filter is difficult, a forced regeneration time can be accurately judged, the deterioration of fuel efficiency that is caused by excessive trapped particulate matter can be avoided, and thermal runaway that is caused by the excessive particulate matter, and the melting damage of the diesel particulate filter due to this thermal runaway, can be prevented.