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HYBRID THERMAL SYSTEM WITH DEVICE-SPECIFIC CONTROL LOGIC

  • US 20140148982A1
  • Filed: 11/29/2012
  • Published: 05/29/2014
  • Est. Priority Date: 11/29/2012
  • Status: Active Grant
First Claim
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1. A hybrid thermal system comprising:

  • a plurality of fluid-cooled devices;

    a thermal loop having;

    a cooling actuator configured to circulate a cooling fluid to the fluid-cooled devices; and

    a fluid passage that connects the cooling actuator to the fluid-cooled devices, and that conducts the cooling fluid to and from the fluid-cooled devices; and

    a controller in communication with the fluid-cooled devices and with the cooling actuator, and having a processor and tangible, non-transitory memory on which is recorded device-specific control logic for arbitrating between cooling requests from each of the fluid-cooled devices;

    wherein the controller is configured to execute the control logic via the processor to thereby cause the controller to;

    receive, for each of the fluid-cooled devices, a raw speed request and a noise, vibration, and harshness (NVH) limit;

    process the raw speed requests and NVH limits, including determining a relative cooling priority for each of the fluid-cooled devices; and

    output a speed command to the cooling actuator to thereby cool the fluid-cooled devices at a level required by the fluid-cooled device having the highest relative cooling priority.

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