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Method and apparatus for estimation of thermal parameter for climate control

  • US 5,197,666 A
  • Filed: 01/02/1992
  • Issued: 03/30/1993
  • Est. Priority Date: 03/18/1991
  • Status: Expired due to Fees
First Claim
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1. A parameter estimation assembly (16) for determining, utilizing inside air and outside air, the thermal and thermodynamic parameters of an enclosure (30) defining a conditioned space (28) and of a climate control system (18) associated with the conditioned space (28) controlling the temperature of the conditioned space (28) as a function of time defined by an occupancy comfort (39) and thermostat setback (80) schedule, said assembly (16) comprising:

  • inside sensing means (34) for measuring the temperature of air inside a conditioned space (28) while the conditioned space (28) is caused to undergo a temperature change defined by an occupancy comfort (39) and thermostat setback (80) schedule;

    outside sensing means (36) for measuring the temperature of outside the conditioned space (28) while the conditioned space (28) is caused to undergo a temperature change defined by the occupancy comfort (39) and thermostat setback (80) schedule;

    energy sensor means (46) for measuring the energy consumption rate of a climate control system (18) while the conditioned space (28) is caused to undergo a temperature change defined by the occupancy comfort (39) and thermostat setback (80) schedule, said assembly (16) characterized byprocessing means (44) for storing a non-linear model and for receiving the temperatures of the air inside the conditioned space (28) and the air outside the conditioned space (28) and the energy consumption rate and for calculating the thermal and thermodynamic parameters of the enclosure (30) and the climate control system (18) associated therewith utilizing said non-linear model.

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