MOTOR CONTROL ARCHITECTURE FOR SIMULTANEOUSLY CONTROLLING MULTIPLE MOTORS

• US 20100001678A1
• Filed: 07/03/2008
• Published: 01/07/2010
• Est. Priority Date: 07/03/2008
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Hanlon, Casey, Potter, Calvin C., Wingett, Paul T.
• Granted Patent: US 8,080,966 B2
• Time in Patent Office: Days
• US Class Current: 318/569
• CPC Class Codes: G05B 19/0421 Multiprocessor system

Abstract

A motor control architecture is provided that simultaneously controls multiple motors. The motor control system includes memory, a plurality of motor control processors, and a communication controller. The motor control processors are each responsive to control signals supplied from the communication controller to selectively retrieve system commands and motor positions from the memory, to generate motor commands, and to supply the generated motor commands to the memory. The communication controller selectively receives system commands and transmits the received system commands to the memory, selectively supplies the command signals to selected ones of the motor control processors, selectively receives motor positions from a plurality of motors, selectively transmits motor positions to the memory, selectively retrieves generated motor commands supplied to the memory, and selectively transmits the retrieved motor commands.

Claims

1. A motor control system, comprising:

memory for selectively storing motor positions, system commands, and motor commands;

a plurality of motor control processors in operable communication with the memory, each motor control processor responsive to control signals supplied thereto to (i) selectively retrieve system commands and motor positions from the memory, (ii) generate motor commands, and (iii) supply the generated motor commands to the memory;

a communication controller in operable communication with the memory and each of the motor control processors, the communication controller operable to selectively receive system commands and further operable to;

(i) transmit the received system commands to the memory,

(ii) selectively supply the command signals to selected ones of the motor control processors,

(iii) selectively receive motor positions from a plurality of motors,

(iv) selectively transmit the motor positions to the memory,

(v) selectively retrieve the generated motor commands supplied to the memory, and

(vi) selectively transmit the retrieved motor commands.

2. The system of claim 1, further comprising:

a plurality of motor buffers in operable communication with the communication controller, each motor buffer coupled to selectively receive and transmit at least the motor commands transmitted by the communication controller.

3. The system of claim 2, further comprising:

a motor interface in operable communication with each of the motor buffers, the motor interface coupled to receive and transmit the motor commands transmitted by the motor buffers.

4. The system of claim 3, wherein the motor interface is adapted to receive motor feedback data and transmit the motor feedback data to selected ones of the motor buffers.

5. The system of claim 1, further comprising:

a serial communication bus coupled between the communication controller and the plurality of motor control processors.

6. The system of claim 1, wherein the communication controller is further operable to selectively transmit motor feedback data.

7. The system of claim 6, further comprising:

a system communication interface in operable communication with the communication controller, the communication interface operable to selectively transmit the system commands to, and receive the motor feedback data transmitted by, the communication controller.

8. The system of claim 1, wherein the communication controller is adapted to serially communicate with the communication system.

9. The system of claim 1, wherein the communication controller is further operable to monitor each of the motor control processors and selectively supply the command signals to the motor control processors to at least substantially balance overall processing load.

10. The system of claim 1, wherein the communication controller is further operable to:

determine a number of motor control processors needed to process and execute each of the received system commands; and

supply the command signals to that number of motor control processors.

12. The system of claim 1, further comprising:

a plurality of motor buffers in operable communication with the communication controller, each motor buffer coupled to selectively receive and transmit at least the motor commands transmitted by the communication controller.

13. The system of claim 12, further comprising:

a motor interface in operable communication with each of the motor buffers, the motor interface coupled to receive and transmit the motor commands transmitted by the motor buffers.

14. The system of claim 13, wherein the motor interface is adapted to receive motor feedback data and transmit the motor feedback data to selected ones of the motor buffers.

15. The system of claim 1, further comprising:

a serial communication bus coupled between the communication controller and the plurality of motor control processors.

16. The system of claim 1, wherein the communication controller is further operable to selectively transmit motor feedback data.

17. The system of claim 16, further comprising:

an aircraft communication interface in operable communication with the communication controller, the aircraft interface operable to selectively transmit the aircraft commands to, and receive the motor feedback data transmitted by, the communication controller.

18. The system of claim 1, wherein the communication controller is adapted to serially communicate with the aircraft communication system.

19. The system of claim 1, wherein the communication controller is further operable to monitor each of the motor control processors and selectively supply the command signals to the motor control processors to at least substantially balance overall processing load.

20. The system of claim 1, wherein the communication controller is further operable to:

determine a number of motor control processors needed to process and execute each of the received aircraft commands; and

supply the command signals to that number of motor control processors.

11. An aircraft actuator control system, comprising:

a plurality of actuator assemblies, each actuator assembly including an electric motor, each motor including a motor position sensor operable to sense rotational position; and

a control circuit in operable communication with each of the electric motors, the control circuit comprising;

memory for selectively storing aircraft commands, motor commands, and motor position data, the motor position data representative of the sensed rotational position of each motor;

a plurality of motor control processors in operable communication with the memory, each motor control processor responsive to control signals supplied thereto to (i) selectively retrieve aircraft commands and motor position data from the memory, (ii) generate motor commands, and (iii) supply the generated motor commands to the memory; and

a communication controller in operable communication with the memory and each of the motor control processors, the communication controller operable to selectively receive aircraft commands and further operable to;

(i) transmit the received aircraft commands to the memory,

(ii) selectively supply the command signals to selected ones of the motor control processors,

(iii) selectively receive the motor position data supplied by the motor position sensors,

(iv) selectively transmit the received motor position data to the memory,

(v) selectively retrieve the generated motor commands supplied to the memory, and

(vi) selectively transmit the retrieved motor commands to selected ones of the motors.