Method and system for fuel system control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 12, 2015
Grant Date -
Jan 30, 2014
app pub date -
Jul 26, 2012
filing date -
Jul 26, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods and systems are provided for controlling a fuel system in a hybrid vehicle. Before canister purging is stopped by closing a purge valve, a canister vent valve is closed to hold fuel tank vacuum. Then, during a subsequent canister purge, the purge valve is opened before opening the vent valve, allowing canister purge to initiate under fuel tank vacuum conditions.
First Claim
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International Classification(s)
- 2012 Application Filing Year
- B60K Class
- 1466 Applications Filed
- 1292 Patents Issued To-Date
- 88.14 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B60K Class
- 6.45 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 12, 2026 |
