Abnormality diagnosis device and abnormality diagnosis method for supercharger
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 13, 2018
Issued Date -
N/A
app pub date -
Jul 1, 2015
filing date -
Jul 11, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides an abnormality diagnosis device and an abnormality diagnosis method for a supercharger. In the abnormality diagnosis processing performed by an electronic control unit, a determination of having an abnormality of a turbo charger is made according to the fact that an actual supercharging pressure becomes equal to above the upper-limit supercharging pressure for preventing the over-speed rotation of the turbo charger. The throttle opening is reduced while the output torque of the internal combustion engine is decreased; on the other hand, the actual supercharging pressure is to be decreased by decreasing the rotation speed of the turbo charger. The electronic control unit prohibits the execution of the abnormality determination processing during the reduction of the throttle opening. Thus, a case of making a wrong determination of having the abnormality of the turbo charger through the abnormality diagnosis processing due to the temporary rising of the actual supercharging pressure is suppressed.
First Claim
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Family
International Classification(s)
- 2015 Application Filing Year
- G06F Class
- 57200 Applications Filed
- 45873 Patents Issued To-Date
- 80.20 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G06F Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 13, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 13, 2029 |
