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:
Jun. 30, 2015
Filed:
Apr. 07, 2011
Masahiro Inoue, Susono, JP;
Masahiro Inoue, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
Abstract
An object of this invention is, even when executing WGV control, to stably control an air-fuel ratio in parallel therewith. An ECU calculates a WGV correction coefficient Kv based on a degree of opening of a waste gate valve (WGV) and calculates a wall-surface fuel adherence amount FMW that is an amount of fuel adhering to a wall surface of an intake port by adding a base wall-surface adherence amount FMWB, the WGV correction coefficient Kv, a water temperature correction coefficient Kt, and a load factor change correction coefficient Kdl. The calculated wall-surface fuel adherence amount FMW is added to a fuel injection amount ETAUout. Thus, a state of a blowback amount of exhaust gas that varies with the degree of opening of the WGV can be reflected in the fuel injection amount.