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. 25, 2007
Filed:
Mar. 09, 2007
Shigeo Okubo, Anjou, JP;
Zenichiro Mashiki, Nisshin, JP;
Nobuyuki Shibagaki, Toyota, JP;
Hiroyuki Nomura, Toyota, JP;
Yoshiyuki Shogenji, Toyota, JP;
Kenichi Kinose, Okazaki, JP;
Takuji Matsubara, Nagoya, JP;
Yusuke Nakayama, Gotemba, JP;
Yukihiro Sonoda, Sunto-gun, JP;
Koji Morita, Mishima, JP;
Shigeo Okubo, Anjou, JP;
Zenichiro Mashiki, Nisshin, JP;
Nobuyuki Shibagaki, Toyota, JP;
Hiroyuki Nomura, Toyota, JP;
Yoshiyuki Shogenji, Toyota, JP;
Kenichi Kinose, Okazaki, JP;
Takuji Matsubara, Nagoya, JP;
Yusuke Nakayama, Gotemba, JP;
Yukihiro Sonoda, Sunto-gun, JP;
Koji Morita, Mishima, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
When an injection sharing ratio r is neither 0 nor 1, an engine ECU executes a program including a step of calculating a purge reduction amount of an in-cylinder injector as fpg×r and calculating a purge reduction amount of an intake manifold injector as fpg×(1−r) when performing purge processing according to a current fuel injection sharing ratio of the injectors, and a step of calculating a correction fuel injection amount of the in-cylinder injector by raising the fuel injection amount to a minimum fuel injection amount, and calculating a correction fuel injection amount of the intake manifold injector by subtracting the raised amount from the fuel injection amount of the intake manifold injector when the fuel injection amount of the in-cylinder injector calculated by using the purge reduction amount is lower than the minimum injection amount.