Pilot education system
US-2022270507-A1 · Aug 25, 2022 · US
Method for training to cope with a fault affecting one powertrain of a hybrid propulsion system
US2024386810A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024386810-A1 |
| Application number | US-202218687576-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 29, 2022 |
| Priority date | Aug 31, 2021 |
| Publication date | Nov 21, 2024 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for training a pilot to cope with a fault affecting one powertrain of a hybrid propulsion system for an aircraft. The aircraft includes, connected in parallel to a transmission unit, n powertrains (where n≥2), including a first and a second powertrain that are heterogeneous in nature. It involves, during a flight of the aircraft, simulating a fault affecting the first powertrain while, at the same time as performing the simulation, checking the status of the n powertrains of the propulsion system. If a fault affecting one of the n powertrains is detected, the simulation is halted and the instantaneous power delivered by at least one of either the first or the second powertrain is increased so that the sum of the instantaneous powers delivered by the n powertrains is ≥ a minimum total instantaneous power required for the aircraft to continue its flight.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for training a pilot to cope with a fault affecting a powertrain of a hybrid propulsion system for an aircraft comprising n powertrains connected in parallel on a transmission unit, n being an integer greater than or equal to 2, including first and second powertrains that are heterogeneous in nature, the method comprising, during a flight of the aircraft, simulating a fault affecting the first powertrain by implementing the following steps: decreasing the instantaneous power P M1nst delivered by the first powertrain down to a training power P M1Ecol and maintaining this power P MIEcol until the end of the simulation, with: P M2max_OEI >P M1Ecol >P M1min P M2max_OEI being the instantaneous maximum power that could be delivered by the second powertrain when not in the training mode and P M1min being the instantaneous minimum power that could be delivered by the first powertrain; and increasing the instantaneous power P M2inst delivered by the second powertrain up to a power that is lower than or equal to an upper limit power P M12lim_Ecol applicable to the second powertrain in the training mode, and regulating the power PM 2 inst during the simulation so that the instantaneous total power P tot_Ecol delivered by the first and second powertrains in the training mode is lower than or equal to P M2max_OEI , with: P tot _ Ecol = P M 1 Ecol + P M 2 inst P tot _ Ecol ≤ P M 2 max _ OEI P M 2 inst ≤ P M 2 lim - Ecol < P M 2 max _ OEI P M 2 lim - Ecol + P M 1 Ecol = P M 2 max _ OEI P M2lim_Ecol being the maximum power that could be delivered by the second powertrain in the training mode so that P tot_Ecol does not exceed P M2max_OEI ; the method further comprising, at the same time as performing the simulation, checking the status of the n powertrains of the propulsion system and, if a fault affecting one of the n powertrains is detected, stopping the simulation and increasing the instantaneous power delivered by at least one amongst the first powertrain and the second powertrain, so that the sum of the instantaneous powers delivered by the n powertrains is higher than or equal to P Rmin_OEI , P Rmin_OEI being a minimum total instantaneous power required for the aircraft to continue its flight. 2 . The method according to claim 1 , wherein the second powertrain is selected from among a hydraulic or electrical type powertrain, and the first powertrain is selected from among a gas turbine type powertrain. 3 . The method according to claim 1 , wherein, the second powertrain being reversible, the step of increasing the instantaneous power P Minst delivered by the second powertrain is preceded by a step of drawing, by the second powertrain, a portion of the instantaneous power P M1 delivered by the first powertrain to the transmission unit, whereby a faster drop in the instantaneous total power P tot_Ecol delivered by the first and second powertrains during the simulation is obtained. 4 . The method according to claim 1 , wherein the step of decreasing the instantaneous power P M1inst delivered by the first powertrain includes a transient reduction in the power of the first powertrain below P M1Ecol , followed by an increase in the power of the first powertrain to P M1Ecol . 5 . The method according to claim 1 , wherein the triggering of the step of increasing the instantaneous power P M2inst delivered by the second powertrain is delayed and/or the increase of the instantaneous power P M2inst delivered by the second powertrain is slowed, whereby a transient power hole is created. 6 . The method according to claim 1 , wherein, the second powertrain being reversible and P M1Ecol being selected so as to be higher than or equal to P Rmin_Ecol (P Rmin_Ecol being the minimum total instantaneous power required for the aircraft to continue its flight in the training mode), a step of drawing a portion of the power delivered by the first powertrain to the transmission unit is carried out, by the second powertrain, at least once during the step of increasing the power delivered by the second powertrain, the maximum portion
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2024386810A1 cover?
- A method for training a pilot to cope with a fault affecting one powertrain of a hybrid propulsion system for an aircraft. The aircraft includes, connected in parallel to a transmission unit, n powertrains (where n≥2), including a first and a second powertrain that are heterogeneous in nature. It involves, during a flight of the aircraft, simulating a fault affecting the first powertrain while,…
- Who is the assignee on this patent?
- Safran Helicopter Engines
- What technology area does this patent fall under?
- Primary CPC classification G09B9/44. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 21 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).