Methods and systems for operating an engine

US9399459B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9399459-B2
Application numberUS-201313945671-A
CountryUS
Kind codeB2
Filing dateJul 18, 2013
Priority dateJul 18, 2013
Publication dateJul 26, 2016
Grant dateJul 26, 2016

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  2. Abstract

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  5. First independent claim

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Abstract

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Systems and methods for improving operation of a hybrid vehicle are presented. In one example, engine operation is adjusted in response to a change in engine operating conditions that result in a fractional amount of cylinder charge comprised of exhaust gas changing by more than a threshold percentage. The approaches describe may improve vehicle drivability and fuel economy.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for operating an engine, comprising: inducting a gas mixture into a cylinder, a fraction of the gas mixture comprised of exhaust gas, at least a portion of the gas mixture participating in combustion in the cylinder; and entering the engine into a fuel cut-out state in response to the fraction of the gas mixture changing by more than a threshold percentage. 2. The method of claim 1 , where the fraction of the gas mixtu…

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What does patent US9399459B2 cover?
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, engine operation is adjusted in response to a change in engine operating conditions that result in a fractional amount of cylinder charge comprised of exhaust gas changing by more than a threshold percentage. The approaches describe may improve vehicle drivability and fuel economy.
Who is the assignee on this patent?
Ford Global Tech Llc
What technology area does this patent fall under?
Primary CPC classification B60W20/15. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jul 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).