Methods for measuring fuel quantity during multipulse fuel injection events in a common rail fuel system
US-2024084757-A1 · Mar 14, 2024 · US
Fuel injection control apparatus of internal combustion engine
US8936007B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8936007-B2 |
| Application number | US-201113496460-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 30, 2011 |
| Priority date | Mar 30, 2011 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
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In a compression self-igniting internal combustion engine, a fuel injection by an auxiliary injection ends before a gas temperature inside a cylinder reaches a temperature at which a fuel starts a low-temperature oxidation reaction. Specifically, an in-cylinder gas temperature (750K) is used as a reference, and the auxiliary injection is carried out before the in-cylinder gas temperature reaches 750K, so as to separate the low-temperature oxidation reaction and a high-temperature oxidation reaction from one another. This control makes a premixed combustion slow before a compression top dead center is reached, and ensures control of the premixed combustion in a temperature controlled manner in accordance with the transition of the in-cylinder gas temperature. This ensures unambiguous determination of the injection time of the auxiliary injection based on the in-cylinder temperature, and facilitates the attempt to simplify the fuel injection control.
First claim
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The invention claimed is: 1. A fuel injection control apparatus applicable to control of a compression self-igniting internal combustion engine in which fuel injected into a cylinder from a fuel injection valve combusts in the cylinder, the fuel injection control apparatus being configured to carry out an operation of fuel injection from the fuel injection valve into the cylinder, the operation of fuel injection comprising at least a main injection and an auxiliary injection, the m…
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Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US8936007B2 cover?
- In a compression self-igniting internal combustion engine, a fuel injection by an auxiliary injection ends before a gas temperature inside a cylinder reaches a temperature at which a fuel starts a low-temperature oxidation reaction. Specifically, an in-cylinder gas temperature (750K) is used as a reference, and the auxiliary injection is carried out before the in-cylinder gas temperature reache…
- Who is the assignee on this patent?
- Nada Mitsuhiro, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F02D41/403. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 20 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).