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Method and apparatus for a thermal control system based on virtual temperature sensor

  • US 8,762,097 B2
  • Filed: 04/24/2007
  • Issued: 06/24/2014
  • Est. Priority Date: 08/04/2006
  • Status: Active Grant
First Claim
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1. A first data processing system having more than one component configurations depending upon whether a peripheral component is present in the first data processing system, comprising:

  • a memory;

    an interface to receive at least one peripheral component; and

    a virtual temperature sensor capable of providing a first system temperature for the more than one component configurations of the first data processing system based at least on one of thermal time constant data of components of the first data processing system and system temperature data measured by one or more physical temperature sensors in each of the more than one component configurations, wherein the virtual temperature sensor calculates a predicted temperature based on whether the at least one peripheral component is installed into the interface and the virtual temperature sensor comprises a characterization table stored in the memory, the characterization table having the thermal time constant data of components of the first data processing system and system temperature data previously measured by one or more physical temperature sensors located on a second data processing system in each of the more than one component configurations, wherein the measured system temperature data on the second data processing system are processed to provide the thermal time constant data of components of the first data processing system, wherein the one or more physical temperature sensors measure temperatures other than an ambient air temperature and wherein the one or more physical temperature sensors are separate and different from a sensor for an ambient air temperature, wherein at least one of the thermal time constant data or the system temperature data measured by one or more physical temperature sensors are selected from the characterization table based at least in part on whether the at least one peripheral component is present in the first data processing system, wherein the virtual temperature sensor is configured to select at least a first one of the thermal time constant data and the system temperature data, if the at least one peripheral component is present in the first data processing system, and wherein the virtual temperature sensor is configured to select at least a second one of the thermal time constant data and the system temperature data, if the at least one peripheral component is not present in the first data processing system.

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