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:
Dec. 05, 1995
Filed:
Jan. 27, 1994
Futoshi Nishioka, Hiroshima, JP;
Tetsushi Hosokai, Kure, JP;
Yasuyoshi Hori, Hiroshima, JP;
Kunitomo Minamitani, Kure, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A fuel injection control system for an engine includes fuel injection valves, each of which injects fuel to one cylinder a plurality of times during each cycle. The system has an arithmetic device for calculating a required fuel injection amount based on driving conditions and a trailing side injection capability of a trailing side injection time point, a determination device for comparing the required fuel injection amount with the trailing side injection capability and determining which is greater, and a fuel injection controller for setting a leading side injection time point and a trailing side injection time point and setting a leading side injection amount and a trailing side injection amount. The fuel injection controller carries out a fuel injection only at the trailing side injection time point when the required fuel injection amount is not greater than the trailing side injection capability and divides the fuel injection between a fuel injection at the leading side injection time point and a fuel injection at the trailing side injection time point when the required fuel injection amount is greater than the trailing side injection capability.