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:
Sep. 17, 1991
Filed:
Aug. 30, 1990
Takashi Haiki, Higashihiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
An engine control apparatus for an internal combustion engine has a plurality of groups of cylinders. The engine control apparatus has the same number of independent intake manifolds as there are groups of cylinders, isolating the groups of cylinders. Each independent intake manifold has an air flow meter. The engine control apparatus provides electronic fuel injectors of each group of cylinders with an injector control signal having a pulse width determined based on a signal from the air flow meter so as to deliver a correct ratio of air-fuel mixture into the group of cylinders. The engine control apparatus detects whether one of the plurality of air flow meters is at fault. If any one of the air flow meters is at fault, the engine control apparatus adjusts the pulse width of an injector control signal to be provided for the fuel injectors of the group of cylinders having the air flow meter which is at fault, based on a signal provided by another of the air flow meters which is working normally.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile