External load management functions for vertical take-off and landing aircraft

Patent metadata

Field	Value
Publication number	US-2018099748-A1
Application number	US-201615566282-A
Country	US
Kind code	A1
Filing date	Apr 1, 2016
Priority date	Apr 17, 2015
Publication date	Apr 12, 2018
Grant date	—

Abstract

According to an aspect, a system in an aircraft includes a vehicle management system (VMS) and a load control system (LCS). The LCS includes an LCS processor operable to receive and transmit a plurality of data and load management commands to one or more of: the VMS and a load control interface. The LCS processor is further operable to interact with one or more of: the VMS, one or more LCS sensors, and a load capturing interface of the aircraft to execute the load management commands as a sequence of one or more load management subcommands. The load capturing interface is operable to capture and release an external load relative to the aircraft using a load capture device. The LCS processor is also operable to report a status of execution of the load management commands to the VMS and the load control interface.

First claim

What is claimed is:

1 . A system in an aircraft, the system comprising: a vehicle management system (VMS); and
a load control system (LCS) comprising an LCS processor operable to: receive and transmit a plurality of data and load management commands to one or more of: the VMS and a load control interface; interact with one or more of: the VMS, one or more LCS sensors, and a load capturing interface of the aircraft to execute the load management commands as a sequence of one or more load management subcommands, wherein the load capturing interface is operable to capture and release an external load relative to the aircraft using a load capture device; and report a status of execution of the load management commands to the VMS and the load control interface.

2 . The system of claim 1 , wherein the load capture device is a cargo hook with a sling attached; and wherein in response to receiving a release-sling command as one of the load management commands, the VMS performs an altitude decrease subcommand based on determining that the aircraft is above an acceptable release height according to one or more aircraft sensors and sends a cargo-hook-open subcommand via the LCS to open the cargo hook upon confirmation from the one or more aircraft sensors that the aircraft is at or below the acceptable release height.

3 . The system of claim 1 , further comprising: one or more LCS sensors operable to detect one or more parameters of the external load as one or more of: a position of the external load, a weight of the external load, and a distance of the external load below the aircraft.

4 . The system of claim 3 , wherein in response to receiving a position-over-load command as one of the load management commands, the LCS processor uses the one or more LCS sensors to locate and identify coordinates of the external load; and in response to locating the external load, the LCS processor sends the coordinates of the external load to the VMS to reposition the aircraft over the coordinates of the external load.

5 . The system of claim 3 , wherein in response to receiving a lift-load command as one of the load management commands, the LCS processor confirms attachment of the load capture device with the external load and sends a completion status that prompts the VMS to command an altitude increase of the aircraft.

6 . The system of claim 3 , wherein the load capture device is an LCS capture device, and in response to receiving a release-load command as one of the load management commands, the VMS performs an altitude decrease subcommand based on determining that the aircraft is above an acceptable release height and sends a capture-device-open subcommand to the LCS processor upon confirmation from one or more aircraft sensors that the aircraft is at or below the acceptable release height; wherein LCS processor sends the capture-device-open subcommand to the LCS capture device to release the external load.

7 . The system of claim 3 , wherein in response to receiving a hook-load command as one of the load management commands, the VMS performs a decrease altitude subcommand and monitors the LCS for engagement of the load capture device with the external load and the one or more LCS sensors for the position of the external load or other parameters.

8 . The system of claim 3 , wherein in response to receiving a pickup-load command as one of the load management commands, the VMS decomposes the pickup-load command into a pickup load sequence including a position-over-load command, a hook-load command, and a lift-load command, and executes the pickup-load sequence.

9 . The system of claim 3 , wherein in response to receiving a drop off-load command as one of the load management commands while the aircraft possesses the external load, the VMS decomposes the drop off-load command into a drop-off load sequence comprising completing a repositioning sub-command to a pre-determined drop off location and performing a release-sling command or a release-load command.

10 . The system of claim 1 , wherein the report of the status of execution comprises transmission of one or more of a text message and an encoded status indicator to the load control interface, wherein the load control interface comprises a control station or a pilot interface.

11 . A load control interface comprising:
a user interface operable to receive user selections; and a processing system operable to detect a user selection of one or more selectable load management commands associated with an external load of an aircraft, and transmit a load management command to one or more of a load control system (LCS) and a vehicle management system (VMS) of the aircraft based on the detected user selection of one of the selectable load management commands, wherein each of the selectable load management commands comprises a single action or a sequence of actions to be performed by one or more of the LCS and the VMS of the aircraft.

12 . The load control interface of claim 11 , wherein the selectable load management commands comprise one or more of:
a position-over-load command to locate the external load and position the aircraft over coordinates of the external load; a hook-load command to lower a load capture device of the aircraft and engage the load capture device with the external load; a lift-load command to confirm attachment of the load capture device with the external load and increase altitude of the aircraft based on confirmation of the attachment of the load capture device with the external load; a pickup-load command to command execution of a pickup load sequence comprising the position-over-load command, the hook-load command, and the lift-load command; a release-sling command to open a cargo hook of the aircraft at or below an acceptable release height; a release-load command to open an LCS capture device of the aircraft at or below the acceptable release height; and a drop off-load command to command execution of a drop off-load sequence comprising completing a repositioning sub-command to a pre-determined drop off location and performing a release-sling command or a release-load command.

13 . The load control interface of claim 11 , wherein a status of execution of the selected one of the selectable load management commands that is received from one or more of the LCS and VMS is displayed on the user interface, and the status of execution of the load management command comprises one or more of a text message and a graphical symbol displayed on the user interface.

14 . The load control interface of claim 11 , wherein the processing system is operable to receive a mode of operation of the aircraft, command a change in the mode of operation of the aircraft, and modify an aspect of the user interface based on detecting the change in the mode of operation of the aircraft.

15 . The load control interface of claim 11 , wherein the load control interface is implemented in a control station that is external to the aircraft or is a pilot interface of the aircraft.

Assignees

• Sikorsky Aircraft Corp

Inventors

• Lesperance Jesse J
• Zygmant Thomas

Classifications

• B64U2201/20

  Remote controls · CPC title

• B64U2201/10

  autonomous, i.e. by navigating independently from ground or air stations, e.g. by using inertial navigation systems [INS] · CPC title

• B64D1/22 Primary

  Taking-up articles from earth's surface · CPC title

• B64U2101/30

  for imaging, photography or videography · CPC title

• B64U10/17

  Helicopters (flying platforms B64U10/13) · CPC title