IP Library › Granted Patent US 12,105,115
Granted Patent B2
US 12,105,115 · App. 17/015,698 · Granted Oct 1, 2024

Method and system for monitoring a fan

Inventors: Stephen Paul Linder (Medford, MA); Damir Klikic (Waltham, MA)
Assignee: SCHNEIDER ELECTRIC IT CORPORATION
G01P3/481G01K3/005G01M13/04H02P6/08
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Quick Facts
Patent No.
US 12,105,115
App. No.
17/015,698
Granted
Oct 1, 2024
Kind
B2
Abstract

A system for monitoring a fan used to cool equipment includes memory storing controller-executable instructions, and a controller configured to execute the instructions, which cause the controller to operate a fan, perform a deceleration test on the fan to obtain deceleration test data, calculate a variance of the deceleration test data, make a determination that the fan is susceptible to imminent failure based on the variance, and generate a signal for the equipment to enter a low-heat producing mode based on the determination.

Claims (34)

1. A system for monitoring a fan used to cool equipment, the system comprising:

memory storing controller-executable instructions; and

a controller configured to execute the instructions, which cause the controller to operate a fan,

perform a deceleration test on the fan to obtain deceleration test data,

calculate a variance of the deceleration test data,

make a determination that the fan is susceptible to imminent failure based on the variance, and

generate a signal for the equipment to enter a low-heat producing mode based on the determination,

wherein the controller further is configured to lower a first speed of the fan to a second speed in response to the determination, and

wherein the second speed is based on at least one of an ambient temperature or equipment temperature.

2. The system of claim 1 , wherein the controller further is configured to generate a notification of susceptibility of the fan to imminent failure.

3. The system of claim 1 , wherein performing the deceleration test includes capturing a set of deceleration curves.

4. The system of claim 1 , wherein determining whether the fan is susceptible to imminent failure includes determining whether the variance is greater than a predetermined amount.

5. The system of claim 1 , wherein performing the deceleration test is initiated at least one time during a predetermined time period.

6. The system of claim 1 , wherein the controller further is configured to generate a signal for increasing a speed of a backup fan configured to cool the equipment.

7. The system of claim 1 , wherein the second speed is based on equipment load.

8. The system of claim 1 , wherein the controller further is configured to increase a speed of the fan in response to an event comprising at least one of the equipment being predicted to reach a temperature above a first predetermined threshold, or the equipment reaching a temperature above a second predetermined threshold.

9. One or more non-transitory machine-readable media storing instructions that, when executed by one or more processors, cause the one or more processors to:

operate a fan;

perform a deceleration test on the fan to obtain deceleration test data;

calculate a variance of the deceleration test data;

make a determination that the fan is susceptible to imminent failure based on the variance;

generating a signal for equipment to enter a low-heat producing mode based on the determination; and

lower a first speed of the fan to a second speed in response to the determination,

wherein the second speed is based on at least one of an ambient temperature or equipment temperature.

10. The one or more non-transitory machine-readable media of claim 9 , further storing instructions that, when executed by one or more processors, cause:

generating a notification of susceptibility of the fan to imminent failure.

11. The one or more non-transitory machine-readable media of claim 9 , wherein performing the deceleration test includes capturing a set of deceleration curves.

12. The one or more non-transitory machine-readable media of claim 9 , wherein determining whether the fan is susceptible to imminent failure includes determining whether the variance is greater than a predetermined amount.

13. The one or more non-transitory machine-readable media of claim 9 , wherein performing the deceleration test is initiated at least one time during a predetermined time period.

14. The one or more non-transitory machine-readable media of claim 9 , further storing instructions that, when executed by one or more processors, cause:

generating a signal for increasing a speed of a backup fan configured to cool the equipment.

15. The one or more non-transitory machine-readable media of claim 9 , wherein the second speed is based on equipment load.

16. The one or more non-transitory machine-readable media of claim 9 , further storing instructions that, when executed by one or more processors, cause:

increasing a speed of the fan in response to an event comprising at least one of the equipment being predicted to reach a temperature above a first predetermined threshold, or the equipment reaching a temperature above a second predetermined threshold.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2020
From: LINDER, STEPHEN PAUL
To: SCHNEIDER ELECTRIC IT CORPORATION
Reel/Frame 054236/0167 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 9, 2020
From: KLIKIC, DAMIR
To: SCHNEIDER ELECTRIC IT CORPORATION
Reel/Frame 053724/0489 →
Continuity (2)
Provisional Application 62898064 · Sep 10, 2019
Related Publication 20210072272A1 · Mar 11, 2021