Method for controlling an ignition system of an internal combustion engine and an ignition system

US9309859B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9309859-B2
Application numberUS-201313966653-A
CountryUS
Kind codeB2
Filing dateAug 14, 2013
Priority dateAug 15, 2012
Publication dateApr 12, 2016
Grant dateApr 12, 2016

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  5. First independent claim

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Abstract

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A method for controlling an ignition system of an internal combustion engine, with which a device for the detection of misfires is provided, comprises operation of the internal combustion engine in a calibration mode, wherein the calibration mode includes stepwise reduction of the ignition energy by changing the ignition parameter starting from an initial value, detecting the reaching of a combustion failure limit based on the signal of the detection device and again reducing the ignition energy if the combustion failure limit has not yet been reached, and storing the ignition parameter at the point in time of reaching the combustion failure limit. When not in the calibration mode, operation of the ignition system takes place according to the stored ignition parameter. With such feedback control, electrode burn of the spark plugs is reduced, leading to an extension of the service life of the spark plugs.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for controlling a spark ignition system of an internal combustion engine having at least one cylinder with spark ignition, with which a spark ignition parameter influencing spark ignition energy can be controlled, and with which a device for detection of misfires is provided, the method comprising: operating the internal combustion engine in a calibration mode, wherein the calibration mode comprises: stepwise reduction of the spark ignition e…

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What does patent US9309859B2 cover?
A method for controlling an ignition system of an internal combustion engine, with which a device for the detection of misfires is provided, comprises operation of the internal combustion engine in a calibration mode, wherein the calibration mode includes stepwise reduction of the ignition energy by changing the ignition parameter starting from an initial value, detecting the reaching of a comb…
Who is the assignee on this patent?
Ford Global Tech Llc
What technology area does this patent fall under?
Primary CPC classification F02P17/12. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Apr 12 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).