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:
Nov. 03, 2015
Filed:
Mar. 12, 2012
Hiroyuki Nose, Ebina, JP;
Satoshi Nishii, Kawasaki, JP;
Manabu Okamura, Isehara, JP;
NISSAN MOTOR CO., LTD., Yokohama-shi, Kanagawa, JP;
Abstract
A fuel injection control apparatus for controlling an amount of fuel injection into a fuel injection port of an intake passage in an internal combustion engine, the fuel injection control apparatus including an exhaust air-fuel ratio sensor configured to detect an exhaust air-fuel ratio, an exhaust temperature sensor configured to detect an exhaust temperature, an intake air flow meter configured to detect an intake air amount in the intake passage, and a controller configured to estimate a wall flow amount of the fuel injection port based on the fuel injection amount, the exhaust air-fuel ratio, and the intake air amount, estimate a catalyst bed temperature of a catalyst provided in an exhaust passage based on the exhaust air-fuel ratio and the exhaust temperature and to correct the estimated catalyst bed temperature in accordance with the wall flow amount, and control the fuel injection amount based on the catalyst bed temperature.