Smart motor systems and methods using local intelligence

Patent metadata

Field	Value
Publication number	US-11894794-B2
Application number	US-202217810129-A
Country	US
Kind code	B2
Filing date	Jun 30, 2022
Priority date	Jun 30, 2021
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

Systems and methods for controlling smart motors. One smart motor system includes a control bus, an input device, and a smart motor communicatively coupled to the input device via the control bus. The smart motor includes an electronic processor configured to receive, from the input device, a command frame indicating an action, perform the action, receive, from the input device, a data request frame requesting a status of the smart motor, and transmit, to the input device and in response to receiving the data request frame, a data frame indicating the status of the smart motor.

First claim

What is claimed is:

1. A smart motor system comprising:
a control bus;
an input device; and
a smart motor communicatively coupled to the input device via the control bus, wherein the smart motor is a first smart motor included in a plurality of smart motors connected to the control bus, and wherein the smart motor includes an electronic processor, the electronic processor configured to:
receive, from the input device, a command frame indicating an action, wherein each smart motor included in the plurality of smart motors receives the command frame,
perform the action,
receive, from the input device, a data request frame requesting a status of the smart motor, and
transmit, to the input device and in response to receiving the data request frame, a data frame indicating the status of the smart motor.

2. The smart motor system of claim 1 , wherein the command frame includes an address of the smart motor.

3. The smart motor system of claim 1 , wherein the command frame includes a plurality of parameters describing how to perform the action.

4. The smart motor system of claim 1 , wherein the data frame includes an address of the smart motor.

5. The smart motor system of claim 1 , wherein the electronic processor is configured to:
receive, after transmitting the data frame, a second data request frame requesting a second status of the smart motor, and
transmit, to the input device, a second data frame indicating the second status of the smart motor.

6. The smart motor system of claim 1 , wherein the electronic processor is configured to:
receive, from the input device, a second command frame indicating an idle action,
stop, in response to the second command frame, performing the action,
receive, from the input device, a second data request frame requesting a second status of the smart motor, and
transmit, to the input device and in response to receiving the data request frame, a second data frame indicating that the smart motor is idle.

7. The smart motor system of claim 1 , wherein the plurality of smart motors includes a second smart motor including a second electronic processor, the second electronic processor configured to:
receive, from the input device, the command frame indicating the action,
determine whether the command frame is addressed to the second smart motor, and
disregard, in response to determining the command frame is not address to the second smart motor, the action.

8. The smart motor system of claim 1 , wherein the command frame includes an address indicating a subset of the plurality of smart motors.

9. The smart motor system of claim 1 , wherein the input device is configured to periodically transmit the data request frame at a set frequency.

10. The smart motor system of claim 1 , wherein the status of the smart motor indicates an error.

11. A smart motor system comprising:
a control bus;
an input device; and
a plurality of smart motors communicatively coupled to the input device via the control bus, wherein each respective smart motor includes an electronic processor, the electronic processor configured to:
receive, from the input device, a command frame indicating an action,
determine whether to perform the action,
receive, from the input device, a data request frame requesting a status of the respective smart motor of the plurality of smart motors
transmit, to the input device and in response to receiving the data request frame, a data frame indicating the status of the respective smart motor, and
receive, from the input device, a second data request frame requesting a second status of the respective smart motor, and
transmit, to the input device, a second data frame indicating the second status of the respective smart motor.

12. The smart motor system of claim 11 , wherein the command frame includes an address of the respective smart motor, and wherein the electronic processor is configured to determine whether to perform the action based on the address.

13. The smart motor system of claim 11 , wherein the electronic processor is configured to:
receive, from the input device, a second command frame indicating an idle action,
stop, in response to the second command frame, performing the action,
receive, from the input device, a third data request frame requesting a third status of the respective smart motor, and
transmit, to the input device and in response to receiving the third data request frame, a third data frame indicating that the respective smart motor is idle.

14. A method for communicating on a control bus, the method comprising:
receiving, from an input device, a command frame indicating an action,
performing the action,
receiving, from the input device, a data request frame requesting a status of a smart motor
transmitting, to the input device and in response to receiving the data request frame, a data frame indicating the status of the smart motor; and
transmitting, with the input device, the data request frame at a set frequency.

15. The method of claim 14 , further comprising:
receiving, after transmitting the data frame, a second data request frame requesting a second status of the smart motor, and
transmitting, to the input device, a second data frame indicating the second status of the smart motor.

16. The method of claim 14 , further comprising:
receiving, from the input device, a second command frame indicating an idle action,
stopping, in response to the second command frame, performing the action,
receiving, from the input device, a second data request frame requesting a second status of the smart motor, and
transmitting, to the input device and in response to receiving the data request frame, a second data frame indicating that the smart motor is idle.

17. The method of claim 14 , wherein the command frame includes an address of the smart motor, and wherein the method further comprises:
determining, based on the address, whether to perform the action.

Assignees

• Leggett & Platt Canada Co

Inventors

• Braun Thomas
• Vicary Caitlin Nicole
• Niec Milosz

Classifications

• H02P6/08 Primary

  Arrangements for controlling the speed or torque of a single motor (H02P6/10, H02P6/28 take precedence) · CPC title

• H02P23/14

  Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage · CPC title

• H02P6/17 Primary

  and for generating speed information · CPC title

• H02P29/024

  Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load · CPC title

• H02P29/60

  Controlling or determining the temperature of the motor or of the drive (H02P29/02 takes precedence) · CPC title