Method for controlling actuators on a vehicle

• US 6,446,911 B1
• Filed: 07/14/2000
• Issued: 09/10/2002
• Est. Priority Date: 07/14/2000
• Status: Expired due to Term

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Todd, John, Yount, Larry
• Primary Examiner(s): Poon, Peter M.
• Assistant Examiner(s): Collins, Timothy D.
• Application Number:
  US09/616,295
• Time in Patent Office: 788 Days
• Field of Search: 244/193, 244/197, 244/90.A, 244/90.R, 244/113, 244/110.D, 244/75.R, 244/213, 244/220, 244/221, 244/228, 244/194
• US Class Current: 244/195
• CPC Class Codes: G05D 1/0077 using redundant signals or controls

Abstract

The present invention is a method that allows controllable devices attached to a vehicle'"'"'s surface (such as, for example, controllable actuators on an aircraft) to be controlled by a processor or like device in an active-active mode and when a malfunction is detected in one of the controllable devices, the processor will switch to control the controllable devices in an active-standby mode.

Claims

1. A method for controlling controllable devices on a vehicle comprising the steps of:

a) coupling at least one of the controllable devices to a surface on the vehicle;

b) allowing at least one programmable control means to communicate with each control device and control each controllable device in an active-active mode; and

c) if a malfunction of one of the controllable devices is detected by the programmable control means, allowing the programmable control means to control each controllable device in an active-standby mode.

2. The method of claim 1 wherein the vehicle is an aircraft.

3. The method of claim 2 wherein each controllable device is an actuator.

4. The method of claim 3 wherein each surface is selected from the group consisting of airfoils, ailerons, elevators and like movable structures on the vehicle.

5. The method of claim 4 wherein the programmable control means is an actuator control electronics circuit having a processor, the actuator control electronics circuit receiving a plurality of aircraft operation data.

6. The method of claim 5 wherein the aircraft operation data are selected from the group consisting of column position data, wheel data, pilot command data, column data, rudder pedal position data, ground proximity sensor data and interlock data.

7. The method of claim 6 further including the step of electronically coupling a flight control module circuit to the actuator control electronic.

16. The method of claim 5 wherein the aircraft operation data are selected from the group consisting of column position data, wheel data, pilot command data, column data, rudder pedal position data, ground proximity sensor data and interlock data.

8. A method for controlling actuators on an aircraft comprising the steps of:

a) coupling at least a first actuator and a second actuator to a movable surface on the vehicle;

b) allowing at least one computer to manage the first actuator and the second actuator to control the surface in an active-active mode while the vehicle is in operation, each computer further monitoring each actuator for operational stability; and

c) if the computer determines that the first actuator is operationally unstable, allowing the computer to disengage the first actuator and command the second actuator to control the surface in an active-standby mode.

9. The method of claim 8 wherein each surface is selected from the group consisting of planes of metal, airfoils, ailerons, elevators and like movable structures on the vehicle.

10. The method of claim 9 wherein the computer is further electrically coupled to an actuator control electronics circuit, the actuator control electronics circuit receiving a plurality of aircraft operation data.

11. The method of claim 10 wherein the aircraft operation data is selected from the group consisting of column position data, wheel data, pilot command data, column data, rudder pedal position data, ground proximity sensor data and interlock data.

12. The method of claim 11 further including the step of electronically coupling a flight control module circuit to the actuator control electronics.

13. A method for controlling controllable devices on an aircraft having controllable devices coupled to a surface the method comprising the steps of:

a) allowing a actuator control electronics circuit to communicate with each control device and control each controllable device in an active-active mode; and

b) if a malfunction of one of the controllable devices is detected by the programmable control means, allowing the actuator control electronics circuit to control each controllable device in an active-standby mode.

14. The method of claim 13 wherein each controllable device is an actuator.

15. The method of claim 14 wherein the actuator control electronics circuit receives a plurality of aircraft operation data.