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:
Feb. 12, 1991
Filed:
Jan. 23, 1990
Kouichi Osawa, Susono, JP;
Hiroshi Kanai, Susono, JP;
Kouichi Hoshi, Susono, JP;
Hiroki Matsuoka, Susono, JP;
Michihiro Ohashi, Mishima, JP;
Yukihiro Sonoda, Susono, JP;
Hiroshi Sawada, Gotenba, JP;
Shinichi Matsumoto, Susono, JP;
Kiyoshi Asada, Okazaki, JP;
Hidehiro Oba, Aichi, JP;
Sinji Kato, Toyota, JP;
Katsushi Anzai, Toyota, JP;
Ryouichi Harada, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A fuel injection control device in which the amount of fuel injected by the fuel injector is increased at the time of acceleration. Namely, at the time of acceleration, the lean time and the rich time of the air-fuel mixture are calculated during the lean-rich discriminating time, which is basically equal to a time of an occurence of the lean time and the rich time when the air-fuel ratio is maintained at the stoichiometric air-fuel ratio at the time of acceleration. When the lean time becomes considerably longer than the rich time, the amount of fuel injected by the fuel injector is further increased.