Haptic feedback for rotary wing aircraft

Patent metadata

Field	Value
Publication number	US-10474237-B2
Application number	US-201715658651-A
Country	US
Kind code	B2
Filing date	Jul 25, 2017
Priority date	Jul 25, 2017
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

A method for providing haptic feedback to a user of a rotary wing aircraft that includes receiving, by a computing device, a signal indicative of a user input selecting a control system state for a rotary wing aircraft, where, upon selection, the control system state modifies one or more operational parameters of the rotary wing aircraft, and in response to receiving the signal, outputting, by the computing device, a signal to a shaker system coupled to a collective stick, where the signal is configured to cause the shaker system to provide a haptic feedback via the collective stick, and where the haptic feedback includes a signature that indicates that the control system state has been activated.

First claim

What is claimed is:

1. A method comprising:
receiving, by a computing device, a signal indicative of a user input selecting a control system state for a rotary wing aircraft, wherein upon selection, the control system state modifies one or more operational parameters of the rotary wing aircraft; and
in response to receiving the signal, outputting, by the computing device, a signal to a shaker system coupled to a collective stick, wherein the signal is configured to cause the shaker system to provide a haptic feedback via the collective stick, and wherein the haptic feedback comprises a signature that indicates that the control system state has been activated.

2. The method of claim 1 , wherein the haptic feedback comprises a pulsed vibration.

3. The method of claim 1 , wherein the haptic feedback comprises a predetermined duration of time.

4. The method of claim 3 , wherein the predetermined duration of time is longer than a time it takes for rotary wing aircraft to adjust and reach a pre-programed operational parameter associated with the activation of the control system state.

5. The method of claim 1 , wherein the signal comprises a first signal, the method further comprising outputting, by the computing device, a second signal to the shaker system configured to cause the shaker system to provide a second haptic feedback via the collective stick in response to the computing device detecting the rotary wing aircraft reaching or exceeding flight operational limits, the second haptic feedback being distinguishable from the first haptic feedback.

6. The method of claim 5 , wherein the first haptic feedback comprises a pulsed vibration and the second haptic feedback comprises a continuous vibration.

7. The method of claim 1 , wherein the control system state comprises a predetermined flight system condition comprising at least one of a quiet mode setting, an event simulation mode, or a training mode setting.

8. The method of claim 1 , wherein the control system state modifies the one or more operational parameters of the rotary wing aircraft by at least one of reducing a rotational speed (RPM) of a main rotor, a tail rotor, or an engine of the rotary wing aircraft, or changing an operational limit of the engine.

9. The method of claim 1 , further comprising initiating, by the computing device, an auditory cue that the control system state has been activated.

10. A system comprising:
a computing device;
a collective stick configured to control a pitch of a rotary wing aircraft;
a shaker system coupled to the collective stick; and
a control state selector configured to output a signal to the computing device in response to activation of the control state selector, wherein an operational parameter of the rotary wing aircraft is modified in response to the activation of the control state selector, wherein the computing device is configured to receive the signal from the control state selector and output a signal to the shaker system, in response to receiving the signal, wherein the signal causes the shaker system to provide a haptic feedback via the collective stick, and wherein the haptic feedback indicates that the control state selector has been activated.

11. The system of claim 10 , wherein the haptic feedback comprises a pulsed vibration.

12. The system of claim 10 , wherein the haptic feedback comprises a predetermined duration of time that is longer than a time it takes for rotary wing aircraft to adjust and reach a pre-programed operational parameter associated with the activation of the control state selector.

13. The system of claim 10 , wherein the shaker system comprises an unbalanced motor or a reciprocating motor.

14. The system of claim 10 , wherein the output signal to the shaker system comprises a first signal, wherein the computing device is further configured to output a second signal to the shaker system, the second signal causes the shaker system to provide a second haptic feedback via the collective stick in response to the computing device detecting the rotary wing aircraft reaching or exceeding flight operational limits, and wherein the second haptic feedback is distinguishable from the first haptic feedback.

15. The system of claim 14 , wherein the first haptic feedback comprises a pulsed vibration and the second haptic feedback comprises a continuous vibration.

16. The system of claim 10 , wherein the control state selector activates a predetermined flight system condition comprising at least one of a quiet mode setting, an event simulation mode, or a training mode setting.

17. The method of claim 10 , wherein the operational parameter modified in response to the activation of the control state selector comprises at least one of a rotational speed (RPM) of a main rotor, a tail rotor, or an engine of the rotary wing aircraft, or an operational limit of the engine.

18. A computer readable storage medium comprising instructions that, when executed, cause at least one processor to:
receive a signal indicative of a user input selecting a control system state for the rotary wing aircraft, wherein the control system state modifies one or more operational parameters of the rotary wing aircraft upon activation; and
in response to the activation of the control system state, output a signal to a shaker system coupled to a collective stick, wherein the signal is configured to cause the shaker system to provide a haptic feedback via the collective stick, and wherein the haptic feedback indicates that the control system state has been activated.

19. The computer readable storage medium of claim 18 , wherein the haptic feedback comprises a pulsed vibration.

20. The computer readable storage medium of claim 18 , wherein the signal comprises a first signal, the computer readable storage medium further comprising instructions that, when executed, cause the at least one processor to output a second signal to the shaker system coupled to the collective stick configured to cause the shaker system to provide a second haptic feedback via the collective stick in response to the computing device detecting the rotary wing aircraft reaching or exceeding flight operational limits, the second haptic feedback being distinguishable from the first haptic feedback.

Assignees

• Rolls Royce Corp

Inventors

• Gush Paul

Classifications

• B64C13/10

  comprising warning devices · CPC title

• G06F3/016 Primary

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• G09B9/46

  the aircraft being a helicopter · CPC title

• B64C13/04

  actuated personally · CPC title

• B64C27/56

  characterised by the control initiating means, e.g. manually actuated · CPC title