Method and device for detecting the pinching of a coupling hose between a tank and a gasoline vapor filter

US8966964B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8966964-B2
Application numberUS-201113636894-A
CountryUS
Kind codeB2
Filing dateMar 22, 2011
Priority dateMar 24, 2010
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A method for detecting pinching of a coupling hose between a tank and a gasoline vapor filter for a vehicle internal combustion engine, with the vapor filter being connected to the engine via a duct including a controllable bleed valve, includes at least one sequence of a step consisting in opening a bleed valve; a step consisting in acquiring a series of measurements of richness of a mixture entering the internal combustion engine over a period greater than a predetermined value, representative of a bleed period of the gasoline vapor filter; and a step consisting in comparing successive measured values and determining if a variation in richness from one measurement to the next remains below a pre-determined threshold for a group of measurements spread over a period greater than a pre-determined value.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for detecting pinching of a coupling hose between a tank ( 2 ) and a gasoline vapor filter ( 3 ) for a vehicle internal combustion engine ( 1 ), said vapor filter ( 3 ) being connected to the engine via a duct comprising a controllable bleed valve ( 4 ), comprising at least one sequence of the following steps: a step consisting in opening the bleed valve ( 4 ), a step consisting in acquiring a series of measurements representative of a richn…

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What does patent US8966964B2 cover?
A method for detecting pinching of a coupling hose between a tank and a gasoline vapor filter for a vehicle internal combustion engine, with the vapor filter being connected to the engine via a duct including a controllable bleed valve, includes at least one sequence of a step consisting in opening a bleed valve; a step consisting in acquiring a series of measurements of richness of a mixture e…
Who is the assignee on this patent?
Collet Thierry, Continental Automotive France, Continental Automotive Gmbh
What technology area does this patent fall under?
Primary CPC classification B60K15/03504. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 03 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).