Fuel level measurement system for a machine
US11493378B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2020 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Nov 5, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fuel level measurement system and method for liquified natural gas (LNG) powered machines is disclosed. An engine control module (ECM) receives fuel line pressure levels at a first time (e.g., a key-off event) and, again, at a second time (e.g., a key-on event). The ECM predicts an expected change in pressure from the key-off event to the key-on event based on various factors. If the change in pressure detected is greater than a threshold level different from the predicted change in pressure, the ECM determines a fill event and resets a current fuel level. The ECM tracks mass flow commands used to provide fuel to the engine to determine the consumption of fuel from the fuel tank and to determine a new current fuel level based on the amount of fuel consumed. The current fuel level is displayed on a fuel gauge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.