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US 2017/0102747 A1Published application
Systems And Methods For Dynamic And Adaptive Cooling Fan Shadowing In Information Handling Systems
AssigneeDell Products L.P.
InventorsDinesh Kunnathur Ragupathi, Carlos G. Henry, Eric M. Tunks
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Abstract
Systems and methods of controlling the fan speed of one or more secondary variable speed cooling fans of an information handling system in real time by dynamically and adaptively shadowing the fan speed of another primary variable speed cooling fan or by so shadowing the fan speed of the variable cooling fan/s of a primary cooling fan zone including other variable speed primary cooling fans of the same information handling system.
Claims22
An information handling system, comprising:
- a chassis enclosure;
- at least one heat-producing component contained within the chassis enclosure;
- at least one temperature sensor configured to sense and provide a heat-producing component temperature signal representing the real time sensed temperature of the heat-producing component;
- at least two separate variable speed cooling fans configured to provide different flow rates of cooling air within the chassis enclosure, at least one of the variable speed cooling fans being mapped as a primary cooling fan to cool the at least one heat-producing component and at least one of the variable speed cooling fans being a secondary cooling fan assigned to shadow the real time fan speed of the primary cooling fan;
- and
- at least one processing device that is coupled to receive the heat-producing component temperature signal from the temperature sensor, the processing device being configured to control a real time fan speed of the primary cooling fan based on the heat-producing component temperature signal to cool the heat-producing component;
- where the at least one processing device is further configured to:
- control a real time fan speed of the secondary cooling fan relative to the real time controlled fan speed of the primary cooling fan based on a shadowing relationship,
- vary a value of the shadowing relationship so as to control the real time fan speed of the secondary cooling fan relative to the varied real time controlled fan speed and determine at least two values of cooling power efficiency associated with at least two respective different shadowing relationship values,
- then select a value of the shadowing relationship from the at least two different shadowing relationship values that corresponds to a greater cooling power efficiency between the two different shadowing relationship values, and
- then control the real time fan speed of the secondary cooling fan relative to the real time controlled fan speed of the primary cooling fan based on the selected shadowing relationship value that corresponds to a greater cooling power efficiency.
8 more elements
A method for controlling cooling fan response within a chassis enclosure of an information handling system, comprising:
- operating at least one heat-producing component contained within the chassis enclosure, and using at least one temperature sensor to sense and provide a heat-producing component temperature signal representing the real time sensed temperature of the heat-producing component;
- operating at least two separate variable speed cooling fans to provide different flow rates of cooling air within the chassis enclosure, at least one of the variable speed cooling fans being mapped as a primary cooling fan to cool the at least one heat-producing component and at least one of the variable speed cooling fans being a secondary cooling fan assigned to shadow the real time fan speed of the primary cooling fan;
- and
- using at least one processing device to receive the heat-producing component temperature signal from the temperature sensor, and using the processing device to control a real time fan speed of the primary cooling fan based on the heat-producing component temperature signal to cool the heat-producing component;
- and
- using at least one processing device to:
- control a real time fan speed of the secondary cooling fan relative to the real time controlled fan speed of the primary cooling fan based on a shadowing relationship,
- vary a value of the shadowing relationship so as to control the real time fan speed of the secondary cooling fan relative to the varied real time controlled fan speed and determine at least two values of cooling power efficiency associated with at least two respective different shadowing relationship values,
- then select a value of the shadowing relationship from the at least two different shadowing relationship values that corresponds to a greater cooling power efficiency between the two different shadowing relationship values, and
- then control the real time fan speed of the secondary cooling fan relative to the real time controlled fan speed of the primary cooling fan based on the selected shadowing relationship value that corresponds to a greater cooling power efficiency.
7 more elements
Dependencies are inferred from the claim text.