Method for adapting an engine to the fuel grade by incrementing the initial octane number of the fuel
US-9032932-B2 · May 19, 2015 · US
Method for adapting an engine to the fuel grade by decrementing the initial octane number of the fuel
US9303616B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9303616-B2 |
| Application number | US-201013266802-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 8, 2010 |
| Priority date | Apr 30, 2009 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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Abstract
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A method for adapting an engine to an octane number of fuel by decrementing an initial octane number. Starting with a reference setting of the spark advance in an engine operating range for a given octane number, the engine operating range being divided into a plurality of zones, each including an anti-pinking corrective value of the spark advance of the reference setting, the engine is switched to a reference setting that corresponds to a lower octane number: when a threshold value of the advance correction loop is exceeded in at least one zone, or when a counter of the number of zones, in which another threshold value of the advance correction loop is exceeded, exceeds a multi-zone threshold.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of adapting an engine to an octane number of fuel by decrementing a learned octane number, the method starting out from a reference setting of an ignition advance in an engine operating range for a determined octane number, the reference setting corresponding to a pinging-free operation of the engine at a determined speed and a determined torque, the operating range of the engine being broken down into plural zones, each of the zones including…
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Mechanical Engineering · mapped topic
- F02P5/1527Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US9303616B2 cover?
- A method for adapting an engine to an octane number of fuel by decrementing an initial octane number. Starting with a reference setting of the spark advance in an engine operating range for a given octane number, the engine operating range being divided into a plurality of zones, each including an anti-pinking corrective value of the spark advance of the reference setting, the engine is switche…
- Who is the assignee on this patent?
- Pinteau Franck, Valenciennes Edouard, Renault Sas
- What technology area does this patent fall under?
- Primary CPC classification F02P5/1527. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 05 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).