Engine control apparatus
US-2024328367-A1 · Oct 3, 2024 · US
Engine control system
US8930118B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8930118-B2 |
| Application number | US-201113634740-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 30, 2011 |
| Priority date | Mar 31, 2010 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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- Title
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Abstract
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Disclosed is an engine control system which is designed to allow homogeneous-charge compression ignition combustion to be performed in an HCCI region (R) defined as an engine operating region including at least a partial-load range of an engine. In a low load zone (R 1 ) of the HCCI region (R), a lift amount of an intake valve ( 11 ) is set to a first predetermined value, and an exhaust valve ( 12 ) is allowed to start being opened during an intake stroke at a given timing later than an opening timing of the intake valve ( 11 ). Further, in the medium load zone of the HCCI region, the lift amount of the intake valve ( 11 ) is gradually increased up to a second predetermined value greater than the first predetermined value, along with an increase in an engine load. The engine control system is capable of adequately controlling an amount of burned gas to be introduced into a cylinder, depending on the engine load to allow the HCCI combustion to be adequately performed in a wider engine load range.
First claim
Opening claim text (preview).
The invention claimed is: 1. An engine control system designed to allow homogeneous-charge compression ignition combustion to be performed in an HCCI region defined as an engine operating region including at least a partial-load range of an engine, comprising: a variable lift mechanism adapted to variably set a lift amount of an intake valve; a switching mechanism adapted to be capable of switching between allowing an exhaust valve to be opened both during an exhaust stroke and…
Assignees
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Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F02D41/3035Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8930118B2 cover?
- Disclosed is an engine control system which is designed to allow homogeneous-charge compression ignition combustion to be performed in an HCCI region (R) defined as an engine operating region including at least a partial-load range of an engine. In a low load zone (R 1 ) of the HCCI region (R), a lift amount of an intake valve ( 11 ) is set to a first predetermined value, and an exhaust valve (…
- Who is the assignee on this patent?
- Nagatsu Kazuhiro, Hidaka Masatoshi, Kaminaga Takashi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F02D41/3035. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 06 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).