Engine control device and control method
US-2015252736-A1 · Sep 10, 2015 · US
Fuel injection control device and fuel injection control method
US10100772B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10100772-B2 |
| Application number | US-201515735248-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2015 |
| Priority date | Jun 12, 2015 |
| Publication date | Oct 16, 2018 |
| Grant date | Oct 16, 2018 |
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- Title
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- Abstract
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Abstract
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A fuel injection control device controls a spark-ignition engine of an intra-cylindrical direct fuel injection type. The engine includes a fuel injection valve configured to directly inject a fuel to an interior of a cylinder, and a spark plug configured to ignite, by a spark, an air-fuel mixture inside the cylinder. When the injected fuel collides with a portion in a predetermined low-temperature state, the fuel is injected while changing a fuel injection condition under predetermined operating conditions so as to restrain a fuel spray from keeping colliding with the same position continuously.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fuel injection control device for a spark-ignition engine of an intra-cylindrical direct fuel injection type, the engine comprising: a fuel injection valve configured to directly inject a fuel to an interior of a cylinder; and a spark plug configured to ignite, by a spark, an air-fuel mixture inside the cylinder, wherein when the injected fuel collides with a portion in a predetermined low-temperature state, the fuel is injected while changing a fuel injection timing and a fuel injection pressure under predetermined operating conditions so as to restrain a fuel spray from keeping colliding with the same position continuously, and an amount of change in the fuel injection timing is increased as the fuel injection pressure increases. 2. The fuel injection control device according to claim 1 , wherein an amount of change in the fuel injection timing is increased as an amount of fuel injection increases. 3. The fuel injection control device according to claim 1 , wherein an amount of change in the fuel injection pressure is increased as an amount of fuel injection increases. 4. A fuel injection control method for a spark-ignition engine of an intra-cylindrical direct fuel injection type, the engine comprising: a fuel injection valve configured to directly inject a fuel to an interior of a cylinder; and a spark plug configured to ignite, by a spark, an air-fuel mixture inside the cylinder, the fuel injection control method comprising: when the injected fuel collides with a portion in a predetermined low-temperature state, injecting the fuel while changing a fuel injection timing and a fuel injection pressure under predetermined operating conditions so as to restrain a fuel spray from keeping colliding with the same position continuously; and increasing an amount of change in the fuel injection timing as the fuel injection pressure increases.
Assignees
Inventors
Classifications
Controlling injection timing (F02D41/402 takes precedence) · CPC title
with positive ignition (with non-timed positive ignition F02B9/06) · CPC title
Other pistons with specially-shaped head · CPC title
- F02D41/3005Primary
Details not otherwise provided for · CPC title
specially adapted to pent roof shape of the combustion chamber · CPC title
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- What does patent US10100772B2 cover?
- A fuel injection control device controls a spark-ignition engine of an intra-cylindrical direct fuel injection type. The engine includes a fuel injection valve configured to directly inject a fuel to an interior of a cylinder, and a spark plug configured to ignite, by a spark, an air-fuel mixture inside the cylinder. When the injected fuel collides with a portion in a predetermined low-temperat…
- Who is the assignee on this patent?
- Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification F02D41/3005. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 16 2018 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).