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:
Jan. 22, 2013
Filed:
Nov. 30, 2009
Takashi Abe, Kobe, JP;
Sou Kurosaka, Kobe, JP;
Yoshinobu Mori, Kobe, JP;
Shinichi Kuratani, Kobe, JP;
Takashi Abe, Kobe, JP;
Sou Kurosaka, Kobe, JP;
Yoshinobu Mori, Kobe, JP;
Shinichi Kuratani, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Abstract
An ECU is used in a motorcycle including an engine E, which combusts in a combustion chamber a blended fuel in which gasoline and ethanol are blended, and a fuel injection device for injecting a fuel with a predetermined fuel injection amount such that an air excess ratio in the combustion chamber is a first predetermined value when an ethanol concentration of the blended fuel is zero. The ECU executes Ofeedback control based on an Oconcentration derived from an output of an Osensor. Further, the ECU calculates an actual fuel compensation ratio by dividing a fuel injection amount after the Ofeedback control by a predetermined fuel injection amount, and estimates the concentration of the alternative fuel based on this actual fuel compensation ratio and a first predetermined value stored in the ECU.