IP Library › Granted Patent US 9,823,636
Granted Patent B2
US 9,823,636 · App. 14/445,419 · Granted Nov 21, 2017

Systems and methods for parallel feedback temperature control

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Quick Facts
Patent No.
US 9,823,636
App. No.
14/445,419
Granted
Nov 21, 2017
Kind
B2
Abstract

In accordance with embodiments of the present disclosure, a system may include a first feedback controller, a second feedback controller, and logic. The first feedback controller may be configured to calculate a first intermediate air mover speed based on a measured temperature. The second feedback controller may be configured to calculate a second intermediate air mover speed based on the measured temperature. The logic may be configured to select a maximum of the first intermediate air mover speed and the second intermediate air mover speed as a selected air mover speed and generate a control signal indicative of the selected air mover speed.

Claims (26)

1. A system comprising:

a first feedback controller configured to calculate a first aft mover speed based on a measured temperature and optimized for use with a first heatsink; and

a second feedback controller configured to calculate a second air mover speed based on the measured temperature and optimized for use with a second heatsink having smaller surface area than the first heatsink;

logic configured to select a maximum of the first air mover speed and the second air mover speed as a selected air mover speed and generate a control signal indicative of the selected aft mover speed; and

wherein a speed of an air mover is controlled based on the control signal.

2. The system of claim 1 , wherein:

the first feedback controller comprises a direct conversion controller configured to calculate the first air mover speed based on a direct correlation between the measured temperature and the first air mover speed; and

the second feedback controller comprises a proportional-integral-derivative controller configured to calculate the second air mover speed based on an error between the measured temperature and a setpoint temperature.

3. A method of comprising:

calculating a first air mover speed based on a measured temperature with a first feedback controller optimized for use with a first heatsink;

calculating a second aft mover speed based on the measured temperature with a second feedback controller optimized for use with a second heatsink having smaller surface area than the first heatsink;

selecting a maximum of the first air mover speed and the second air mover speed as a selected aft mover speed;

generating a control signal indicative of the selected aft mover speed; and

wherein a speed of an aft mover is controlled based on the control signal.

4. The method of claim 3 , wherein:

the first feedback controller comprises a direct conversion controller configured to calculate the first air mover speed based on a direct correlation between the measured temperature and the first air mover speed; and

the second feedback controller comprises a proportional-integral-derivative controller configured to calculate the second air mover speed based on an error between the measured temperature and a setpoint temperature.

5. An information handling system comprising: an aft mover;

an air mover control system configured to control a velocity of the air mover, the air mover control system comprising:

a first feedback controller configured to calculate a first aft mover speed based on a measured temperature and optimized for use with a first heatsink;

a second feedback controller configured to calculate a second aft mover speed based on the measured temperature and optimized for use with a second heatsink having smaller surface area than the first heatsink;

logic configured to select a maximum of the first air mover speed and the second air mover speed as a selected air mover speed and generate a control signal indicative of the selected air mover speed; and

wherein the velocity of the air mover is controlled based on the control signal.

6. The information handling system of claim 5 , wherein:

the first feedback controller comprises a direct conversion controller configured to calculate the first air mover speed based on a direct correlation between the measured temperature and the first air mover speed; and

the second feedback controller comprises a proportional-integral-derivative controller configured to calculate the second air mover speed based on an error between the measured temperature and a setpoint temperature.

Assignments (15)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (045455/0001) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061753/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (040136/0001) Recorded Apr 26, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061324/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL, L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058216/0001 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 21, 2019
From: CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049452/0223 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 040134/0001 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 040136/0001 →
RELEASE OF REEL 033625 FRAME 0748 (NOTE) Recorded Sep 14, 2016
From: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.
Reel/Frame 040027/0050 →
RELEASE OF REEL 033625 FRAME 0688 (TL) Recorded Sep 14, 2016
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.
Reel/Frame 040027/0757 →
RELEASE OF REEL 033625 FRAME 0711 (ABL) Recorded Sep 13, 2016
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.
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SUPPLEMENT TO PATENT SECURITY AGREEMENT (TERM LOAN) Recorded Aug 27, 2014
From: COMPELLENT TECHNOLOGIES, INC.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; SECUREWORKS, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
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SUPPLEMENT TO PATENT SECURITY AGREEMENT (NOTES) Recorded Aug 27, 2014
From: COMPELLENT TECHNOLOGIES, INC.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; SECUREWORKS, INC.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
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SUPPLEMENT TO PATENT SECURITY AGREEMENT (ABL) Recorded Aug 27, 2014
From: COMPELLENT TECHNOLOGIES, INC.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; SECUREWORKS, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
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ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2014
From: SHABBIR, HASNAIN; LOVICOTT, DOMINICK A.; CHIN, HSIANG-JUNG
To: DELL PRODUCTS L.P.
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