Motor current based air circuit obstruction detection
First Claim
1. A program product for determining an obstruction in an air circuit for an environmental control unit having a motor, the program product comprising:
- a program configured to at least facilitate;
obtaining a load current of the motor;
determining a state of the motor;
generating a comparison by;
comparing the load current to a first plurality of values if the motor is in a steady state; and
comparing the load current to a second plurality of values if the motor is in a transient state; and
determining the obstruction using the load current and the comparison; and
a non-transitory, computer-readable storage medium storing the program.
0 Assignments
0 Petitions
Accused Products
Abstract
A program product for determining an obstruction in an air circuit for an environmental control unit having a motor is provided. The program product comprises a program and a non-transitory, computer-readable storage medium. The program is configured to at least facilitate obtaining a load current of the motor, determining a state of the motor, generating a comparison, and determining the obstruction using the load current and the comparison. The comparison is generated by comparing the load current to a first plurality of values if the motor is in a steady state, and by comparing the load current to a second plurality of values if the motor is in a transient state. The non-transitory, computer-readable storage medium stores the program.
-
Citations
19 Claims
-
1. A program product for determining an obstruction in an air circuit for an environmental control unit having a motor, the program product comprising:
-
a program configured to at least facilitate; obtaining a load current of the motor; determining a state of the motor; generating a comparison by; comparing the load current to a first plurality of values if the motor is in a steady state; and comparing the load current to a second plurality of values if the motor is in a transient state; and determining the obstruction using the load current and the comparison; and a non-transitory, computer-readable storage medium storing the program. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A program product for determining an obstruction in an air circuit for an environmental control unit, the program product comprising:
-
a program configured to at least facilitate; obtaining a load current of a motor of the environmental control unit; comparing the load current to a plurality of values, each of the plurality of values comprising a measure of load current of a corresponding one of a plurality of models; selecting one of the modules, based at least in part on the comparison of the load current to the plurality of values; obtaining a measure of obstruction from the selected one of the models; and determining the obstruction using the measure of obstruction; and a non-transitory, computer-readable storage medium storing the program. - View Dependent Claims (9, 10, 11, 12, 13)
-
-
14. A program product for determining an obstruction in an air circuit for an environmental control unit having a motor, the program product comprising:
-
a program configured to; determine a load current of the motor; determine a state of the motor; generate a comparison by; comparing the load current to a first plurality of values if the motor is in a steady state, each of the first plurality of values comprises a measure of load current of a corresponding one of a first plurality of models representing steady state operation of the motor; and comparing the load current to a second plurality of values if the motor is in a transient state, each of the second plurality of values comprises a measure of load current of a corresponding one of a second plurality of models representing transient state operation of the motor; select one of the models, based at least in part on the comparison of the load current to the plurality of values; obtain a measure of obstruction from the selected one of the models; and determine the obstruction using the measure of obstruction. - View Dependent Claims (15, 16, 17, 18, 19)
-
Specification