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:
Aug. 30, 2005
Filed:
Jul. 29, 2003
Toru Kawatani, Tochigi, JP;
Naoki Onoda, Tochigi, JP;
Hiroshi Jyoutaki, Tochigi, JP;
Ritsuko Shinozaki, Tochigi, JP;
Yoshinori Takahashi, Tochigi, JP;
Yoshinaka Takeda, Kanagawa, JP;
Kenji Sasaki, Tochigi, JP;
Kenji Kawai, Aichi, JP;
Shinichi Saito, Tochigi, JP;
Masayuki Takahashi, Tochigi, JP;
Toru Kawatani, Tochigi, JP;
Naoki Onoda, Tochigi, JP;
Hiroshi Jyoutaki, Tochigi, JP;
Ritsuko Shinozaki, Tochigi, JP;
Yoshinori Takahashi, Tochigi, JP;
Yoshinaka Takeda, Kanagawa, JP;
Kenji Sasaki, Tochigi, JP;
Kenji Kawai, Aichi, JP;
Shinichi Saito, Tochigi, JP;
Masayuki Takahashi, Tochigi, JP;
Mitsubishi Fuso Truck and Bus Corporation, Tokyo, JP;
Abstract
An engine control system comprises a NOx catalyst selectively reducing NOx from exhaust gases, a reducing agent supply providing the reducing agent to an exhaust system and positioned upstream of the NOx catalyst, NOx sensors detecting an amount of NOx in exhaust gases emitted by an internal combustion engine, a fuel injection system injecting fuel to the internal combustion engine in a main injection mode or a pilot-and-main injection mode, and a control unit activating the fuel injection system in the pilot-and-main injection mode when a NOx purifying efficiency determined on the basis of data of emitted NOx is equal to or below a preset purifying efficiency.