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Method and apparatus for power management control of a compressor-based appliance that reduces electrical power consumption of an appliance

  • US 6,975,926 B2
  • Filed: 11/08/2002
  • Issued: 12/13/2005
  • Est. Priority Date: 11/08/2002
  • Status: Active Grant
First Claim
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1. A method for managing electric power consumed by an appliance machine that includes a cooling system that operates in an active state and an inactive state, the method comprising:

  • a) monitoring operational characteristics of said appliance machine during an extended period of time to identify when said cooling system is operating in the active state and when said cooling system is operating in the inactive state, said operational characteristics include differential temperature across a condenser of said cooling system within said appliance machine;

    b) deriving a characteristic cycle time of said cooling system based upon said operational characteristics;

    c) decoupling said appliance machine from its electric power source based upon a value of at least one of a first set of parameters; and

    d) coupling said appliance machine to its electric power source upon expiration of a shutdown time, said shutdown time based upon at least said characteristic cycle time.

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