Engine control apparatus
US-2024328367-A1 · Oct 3, 2024 · US
Method and system for pre-ignition control
US8997723B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8997723-B2 |
| Application number | US-201213538937-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2012 |
| Priority date | Jun 29, 2012 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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Methods and systems are provided for reducing late burn induced cylinder pre-ignition events. In response to a late burn combustion event in a cylinder, ignition coil dwell time is extended in the cylinder to reduce unintended combustion delays. In addition, pre-ignition mitigating actions are performed in a neighboring cylinder that may be prone to pre-ignition induced by the late combustion event.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for an engine, comprising: in response to timing of combustion in a first cylinder being later than a threshold during a transient over-torque condition, selectively increasing spark ignition output for the combustion in the first cylinder while selectively enriching a second cylinder based on the timing of combustion in the first cylinder, the second cylinder receiving exhaust residuals from the first cylinder. 2. The me…
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- F02D37/02Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US8997723B2 cover?
- Methods and systems are provided for reducing late burn induced cylinder pre-ignition events. In response to a late burn combustion event in a cylinder, ignition coil dwell time is extended in the cylinder to reduce unintended combustion delays. In addition, pre-ignition mitigating actions are performed in a neighboring cylinder that may be prone to pre-ignition induced by the late combustion e…
- Who is the assignee on this patent?
- Glugla Chris Paul, Czekala Michael Damian, Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F02D37/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 07 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).