Internal combustion engine ignition device

US9212645B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9212645-B2
Application numberUS-201414196756-A
CountryUS
Kind codeB2
Filing dateMar 4, 2014
Priority dateOct 28, 2013
Publication dateDec 15, 2015
Grant dateDec 15, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

There is provided an internal combustion engine ignition device which comprises a switching element for causing or interrupting flow of a current through a primary coil of an ignition coil; a secondary current detection circuit connected to a secondary coil for detecting a secondary current flowing at the time of ignition; an ion current detection circuit for detecting an ion current generated after the ignition; and an energy consumption circuit which is activated based on an output signal from the secondary current detection circuit that is output when the secondary current exceeds a predetermined threshold value, to constitute a circuit for discharging energy stored in the ignition coil.

First claim

Opening claim text (preview).

What is claimed is: 1. An internal combustion engine ignition device which comprises an ignition coil having a primary coil whose one end is connected to a power source terminal and a secondary coil whose one end is connected to an ignition plug; and a switching element which is serially connected to the other end of the primary coil and is ON/OFF controlled based on an ignition signal output from an ECU (Engine Control Unit) so as to cause or interrupt flow of a primary current th…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • F02P3/04Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • F02P1/083Primary

    Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US9212645B2 cover?
There is provided an internal combustion engine ignition device which comprises a switching element for causing or interrupting flow of a current through a primary coil of an ignition coil; a secondary current detection circuit connected to a secondary coil for detecting a secondary current flowing at the time of ignition; an ion current detection circuit for detecting an ion current generated …
Who is the assignee on this patent?
Mitsubishi Electric Corp
What technology area does this patent fall under?
Primary CPC classification F02P3/04. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Dec 15 2015 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).