Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NipponDenso Co LtdfiledCriticalNipponDenso Co Ltd
Priority to JP7407477ApriorityCriticalpatent/JPS5917255B2/en
Publication of JPS548221ApublicationCriticalpatent/JPS548221A/en
Publication of JPS5917255B2publicationCriticalpatent/JPS5917255B2/en
Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine
(AREA)
Abstract
PURPOSE: To prevent a catalyst from being overheated, by controlling the time width of pulse of an electronically controlled fuel injector and varying the mixture ratio when the rising gradient of temperature of the catalyst provided to purify exhaust gas exceeds a set level.