Granted Patent B1

US 10,120,351 · App. 13/957,814 · Granted Nov 6, 2018

Inventors: Zachary P. Hills (Irvine, CA); Jeffrey F. Boigenzahn (Dana Point, CA); Robert G. Fairchild (Tustin, CA)

Assignee: Western Digital Technologies, Inc.

G05B15/02

Abstract

Claims (67)

1. An electronic device comprising:

electromechanical components;

a memory configured to store, for each of the electromechanical components, a plurality of predetermined temperature states, a plurality of system actions associated with the plurality of predetermined temperature states, and a ranking of the system actions;

a cooling unit configured to remove heat from the electromechanical components; and

a controller configured to:

determine an individual temperature state for each of the electromechanical components based on temperature data for each of the electromechanical components and a temperature band corresponding to each of the electromechanical components, wherein:

each determined individual temperature state is one of the plurality of predetermined temperature states;

at least one of the determined individual temperature states is different from at least one other of the determined individual temperature states;

each of the electromechanical components is sampled at an individual sample rate based at least partly on a temperature fluctuation rate of each of the electromechanical components, as determined through a thermal time constant related to a thermal mass of a corresponding electromechanical component;

and

the temperature data for each of the electromechanical components is sampled at the individual sample rate corresponding to each of the electromechanical components;

during overheating and non-overheating operation of the electronic device, assign a device temperature state to the electronic device based on a highest ranked temperature state of the determined individual temperature states;

and

responsive to at least a first electromechanical component and a second electromechanical component having individual temperature states that match the assigned device temperature state:

determine a first system action and a second system action associated with the first electromechanical component and the second electromechanical component, respectively, wherein the first system action and the second system action are different for a same determined individual temperature state;

determine a device system action for the electronic device by selecting one of the first system action or the second system action based on the ranking of the system actions;

and

control an operation of the cooling unit based on the determined device system action.

2. The electronic device of claim 1 , wherein the controller is configured to determine the device system action by:

determining a highest ranked system action of the first system action and the second system action.

3. The electronic device of claim 1 , wherein the device system action comprises one of: shutting down the electronic device, displaying a warning, throttling a performance of the electronic device, operating the cooling unit at a maximum cooling operation, increasing a cooling operation of the cooling unit, maintaining a cooling operation of the cooling unit, or decreasing a cooling operation of the cooling unit.

4. The electronic device of claim 1 , wherein the individual temperature state for each of the electromechanical components is stored in an array in the memory.

5. The electronic device of claim 1 , wherein the cooling unit comprises a fan.

6. The electronic device of claim 1 , wherein the electromechanical components comprise at least one of a central processing unit, a random access memory, a magnetic rotating disk, or a solid state memory.

7. The electronic device of claim 1 , wherein the ranking comprises a ranking of the individual temperature states and corresponding system actions.

8. The electronic device of claim 1 , wherein a sample rate and an applicable temperature band for that sample rate are stored in the memory for each of the electromechanical components.

9. A method for removing heat from electromechanical components in an electronic device, the method comprising:

storing in the electronic device, for each of the electromechanical components, a plurality of predetermined temperature states, a plurality of system actions associated with the plurality of predetermined temperature states, and a ranking of the system actions;

determining an individual temperature state for each of the electromechanical components based on temperature data for each of the electromechanical components and a temperature band corresponding to each of the electromechanical components using a controller in the electronic device, wherein:

each determined individual temperature state is one of the plurality of predetermined temperature states;

at least one of the determined individual temperature states is different from at least one other of the determined individual temperature states;

each of the electromechanical components is sampled at an individual sample rate based at least partly on a temperature fluctuation rate of each of the electromechanical components, as determined through a thermal time constant related to a thermal mass of a corresponding electromechanical component;

and

the temperature data for each of the electromechanical components is sampled at the individual sample rate corresponding to each of the electromechanical components;

during overheating and non-overheating operation of the electronic device, assigning a device temperature state of the electronic device based on a highest ranked temperature state of the determined individual temperature states;

and

responsive to at least a first electromechanical component and a second electromechanical component having individual temperature states that match the assigned device temperature state of the electronic device:

determining a first system action and a second system action associated with the first electromechanical component and the second electromechanical component, respectively, wherein the first system action and the second system action are different for a same determined individual state; determining a device system action for the electronic device by selecting one of the first system action or the second system action based on the ranking of the system actions; and

controlling an operation of a cooling unit in the electronic device based on the determined device system action.

10. The method of claim 9 , wherein determining the device system action comprises:

determining a highest ranked system action between the first electromechanical component and the second electromechanical component as the device system action.

11. The method of claim 9 , wherein the device system action comprises one of: shutting down the electronic device, displaying a warning, throttling a performance of the electronic device, operating the cooling unit at a maximum cooling operation, increasing a cooling operation of the cooling unit, maintaining a cooling operation of the cooling unit, or decreasing a cooling operation of the cooling unit.

12. The method of claim 9 , wherein the electronic device further comprises memory accessible by the controller.

13. The method of claim 12 , further comprising storing the individual temperature state for each of the electromechanical components in an array in the memory.

14. A temperature modification system for an electronic device, the system comprising:

a temperature modification unit configured to add heat to or remove heat from electromechanical components in the electronic device;

a memory configured to store, for each of the electromechanical components, a plurality of predetermined temperature states, a plurality of system actions associated with the plurality of predetermined temperature states, and a ranking of the system actions;

and

a controller configured to:

determine an individual temperature state for each of the electromechanical components based on temperature data for each of the electromechanical components and a temperature band corresponding to each of the electromechanical components, wherein:

each determined individual temperature state is one of a set of predetermined temperature states;

at least one of the determined individual temperature states is different from at least one other of the determined individual temperature states;

each of the electromechanical components is sampled at an individual sample rate based at least partly on a temperature fluctuation rate of each of the electromechanical components, as determined through a thermal time constant related to a thermal mass of a corresponding electromechanical component;

and

the temperature data for each of the electromechanical components is sampled at the individual sample rate corresponding to each of the electromechanical components;

during overheating and non-overheating operation of the electronic device, assign a device temperature state of the electronic device based on a highest ranked temperature state of the determined individual temperature states; and

responsive to at least a first electromechanical component and a second electromechanical component having individual temperature states that match the assigned device temperature state:

determine a first system action and a second system action associated with the first electromechanical component and the second electromechanical component, respectively, wherein the first system action and the second system action are different for a same determined individual state;

determine a device system action for the electronic device by selecting one of the first system action or the second system action based on the ranking of the system actions;

and

control an operation of the temperature modification unit based on the determined device system action.

15. The system of claim 14 , wherein the controller is configured to determine the device system action by:

determining a highest ranked system action of the first system action and the second system action.

16. The system of claim 14 , wherein the device system action comprises one of: shutting down the electronic device, displaying a warning, throttling a performance of the electronic device, operating the temperature modification unit at a maximum cooling operation, increasing a cooling or heating operation of the temperature modification unit, maintaining a cooling or heating operation of the temperature modification unit, or decreasing a cooling or heating operation of the temperature modification unit.

17. The system of claim 14 , wherein the individual temperature state for each of the electromechanical components is stored in an array in the memory.

18. The system of claim 14 , wherein the temperature modification unit comprises at least one of a cooling unit and a heating unit.

19. The system of claim 14 , wherein the electromechanical components comprise at least one of a central processing unit, a random access memory, a magnetic rotating disk, or a solid state memory.

Assignments (13)

Continuity (1)