Vehicular liquid containment system and method for verifying integrity of same
US10443529B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2015 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Nov 15, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vehicular liquid containment system including a tank, a pressure sensor arranged to detect a pressure in a vapor dome inside the tank, at least two thermistors configured to detect temperatures at a plurality of levels of the tank, and leak detection logic operatively connected to the pressure sensor and the thermistors. The leak detection logic is configured to: use a first thermistor of the thermistors to perform a first measurement indicative of a temperature in the vapor dome in the tank; estimate an expected pressure evolution in function of at least the first temperature measurement; monitor pressure sensed by the pressure sensor, determine whether the monitored pressure deviates from the expected pressure evolution, and generate a leak condition signal conditional on the determining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.