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US 9,866,165 B2Granted
Monitoring motor condition
AssigneeLennox Industries Inc.
InventorsJoe Powell, Randall L. Lisbona
Life of this patent
Estimating the term…
Abstract
In various implementations, a condition of a motor may be monitored based at least partially on time required to achieve a change in speed. A notification may be transmitted based on the condition of the motor.
Claims20
A method for monitoring a condition of a fan motor comprising:
- determining an amount of time for the motor to change speeds from a first speed to a second speed, wherein the determined amount of time comprises a first period of time;
- comparing the first period of time and a predetermined period of time;
- and
- determining a condition of the motor based, at least partially, on the comparison between the first period of time and the predetermined period of time;
- wherein the predetermined period of time is based, at least partially, on a plurality of previously determined first periods of time.
2 more elements
A method for monitoring a condition of a fan motor comprising:
- altering a speed of the motor from a first speed to a second speed;
- determining an amount of time for the motor to change speeds from the first speed to the second speed, wherein the determined amount of time comprises a first period of time;
- comparing the first period of time and a predetermined period of time;
- and
- determining a condition of the motor based, at least partially, on the comparison between the first period of time and the predetermined period of time;
- wherein the predetermined period of time is based, at least partially, on one or more previously determined first periods of time and wherein the predetermined period of time is based, at least partially, on one or more previously determined first periods of time during a set period of time.
3 more elements
A method for monitoring a condition of a fan motor comprising:
- receiving a request for operation from a user;
- altering a speed of a motor from a predetermined first speed to a predetermined second speed based on the request for operation;
- determining a rate at which the motor changes speed;
- comparing the rate at which the motor changes speed and a predetermined period of time;
- and
- determining a condition of the motor based at least partially on the determined rate;
- wherein the predetermined period of time is based, at least partially, on one or more previously determined first periods of time.
4 more elements
Dependencies are inferred from the claim text.