Method for controlling depressurisation in a motor vehicle fuel tank
US10549629B2 · kind B2 · utility
0Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Dec 5, 2016 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86445
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method for controlling depressurization in a fuel tank of a motor vehicle, including: the initial controlled opening of the isolation valve in order to lower the pressure inside the tank; determination of a blockage condition in the roll over valve on the basis of at least one item of information relating to the pressure gradient in the tank following the initial opening of the isolation valve; and, if the roll over valve blockage condition is met, the controlled closing of the isolation valve, followed by its controlled re-opening in order to continue lowering the pressure in the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.