Method for controlling a pressure inside vehicular fuel tank system
US9855839B2 · kind B2 · utility
1Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2015 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Dec 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/903
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling a pressure inside a fuel tank system including a fuel tank and a controllable pressure relief valve. The method includes assessing whether a predetermined vapor expulsion risk is present, the predetermined vapor expulsion risk pertaining to a vapor expulsion from a main volume of the tank into a space accessible to an operator; if said risk is present, operating the pressure relief valve in accordance with a first pressure threshold, if the risk is not present, operating the pressure relief valve in accordance with a second pressure threshold which is higher than the first pressure threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.