System and method for preventing stochastic pre-ignition
US-9217386-B2 · Dec 22, 2015 · US
Control apparatus for internal combustion engine
US8949003B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8949003-B2 |
| Application number | US-201113978664-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 18, 2011 |
| Priority date | Feb 18, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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Provided is a control apparatus for an internal combustion engine, which can favorably suppress an occurrence of abnormal combustion regardless of its operational conditions. An occurrence probability of abnormal combustion of the internal combustion engine ( 10 ) is obtained on the basis of a fuel dilution index. An expected value I of the number of occurrences of abnormal combustion per a predetermined time period is calculated on the basis of the occurrence probability of abnormal combustion. The upper limit value of a torque generated by the internal combustion engine ( 10 ) is limited low so that the expected value I does not exceed a predetermined tolerable value.
First claim
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The invention claimed is: 1. A control apparatus for an internal combustion engine, comprising a controller that is configured to: obtain an occurrence probability of abnormal combustion of an internal combustion engine; calculate an expected value of the number of occurrences of the abnormal combustion per a predetermined time period, based on the occurrence probability of the abnormal combustion; and cause an upper limit value of a torque generated by the internal combustion…
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- What does patent US8949003B2 cover?
- Provided is a control apparatus for an internal combustion engine, which can favorably suppress an occurrence of abnormal combustion regardless of its operational conditions. An occurrence probability of abnormal combustion of the internal combustion engine ( 10 ) is obtained on the basis of a fuel dilution index. An expected value I of the number of occurrences of abnormal combustion per a pre…
- Who is the assignee on this patent?
- Okada Yoshihiro, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F02D35/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 03 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).