Engine mass flow observer with fault mitigation
US11434843B1 · kind B1 · utility
6Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2021 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | May 21, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2400/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems for fault mitigation in an engine system. For ordinary operation, a set of control signals are generated after calculating airflows within the engine system using a set of flow models linked to components of the engine system, while underweighting or omitting an output of a sensor in the engine system. When a fault is identified, the set of flow models is analyzed differently by underweighting or omitting one or more flow models in favor of using the sensor output. By so doing, the engine system can continue to be operated without triggering an on-board diagnostic alert requiring cessation of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.