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:
Oct. 22, 2013
Filed:
Aug. 05, 2009
Toshiki Annoura, Nagoya, JP;
Toshiki Annoura, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
An alcohol concentration sensor detects an alcohol concentration in fuel that is supplied to an internal combustion engine. A fuel injection quantity is controlled in accordance with a detection value of the alcohol concentration that is detected by the alcohol concentration sensor. When a temperature of the fuel, which is detected by a fuel temperature sensor or estimated from intake air temperature etc., is equal to or lower than a predetermined limit temperature, the detection value of the alcohol concentration, which is detected by the alcohol concentration sensor, is memorized as a memorized value of the alcohol concentration. When the temperature of the fuel is higher than the predetermined limit temperature, the fuel injection quantity is controlled by using the memorized value of the alcohol concentration instead of using the detection value, which is currently detected by the alcohol concentration sensor.