Control apparatus for compression-ignition type engine
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Jan 11, 2022
Grant Date -
Jul 22, 2021
app pub date -
Apr 23, 2019
filing date -
Apr 23, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An engine control apparatus includes an ignition control section and an injection control section. When the partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of a expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. The energy of the preceding ignition is set to be higher when fuel concentration specified by a fuel concentration specification section is low than when the fuel concentration is high.
First Claim
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International Classification(s)
- 2019 Application Filing Year
- F02B Class
- 909 Applications Filed
- 641 Patents Issued To-Date
- 70.52 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02B Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jul 11, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 11, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 11, 2033 |