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:
May. 21, 2013
Filed:
May. 21, 2009
Takayuki Demura, Mishima, JP;
Kenji Shiotani, Kobe, JP;
Takayuki Demura, Mishima, JP;
Kenji Shiotani, Kobe, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Fujitsu Ten Limited, Kobe-Shi, JP;
Abstract
An internal combustion engine control apparatus includes: a purge control unit causing fuel evaporative emission to be introduced into an intake passage to attain a purge flow rate based on a pressure in the intake passage; a fuel cut return rich control unit setting a rich target air-fuel ratio when returning from fuel cut, and feedback-controlling a fuel supply rate on the basis of the target air-fuel ratio, purge flow rate and intake air flow rate to attain the target air-fuel ratio; a fuel increase upper limit setting unit setting an allowable upper limit for an increase in fuel supply rate in fuel cut return rich control; and an actual air-fuel ratio control unit controlling an actual air-fuel ratio to a richer side when the fuel supply rate in the fuel cut return rich control has reached the allowable upper limit and the actual air-fuel ratio is lean.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile