Method of maintaining a position of an airflow-direction control element of a hvac system
AssigneeJohnson Electric S.A.
InventorYvan BOURQUI
Life of this patent
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Abstract
A method of maintaining a position of an airflow-direction control element 16 of a HVAC system, comprising the steps of, a] determining a position of at least one movable member of an airflow-direction control mechanism of the HVAC system; and b] calculating whether the movable member is at a target position associated with a required position of the airflow-direction control element, and if not, activating an airflow-direction-controller actuator of the HVAC system to effect a change in the position of the movable member thereby bringing the airflow-direction control element to or towards the said required position. A HVAC system suitable for implementing such a method is also provided and capable of improving the overall efficiency of operation.
Claims20
A method of maintaining a position of an airflow-direction control element of a HVAC system, comprising the steps of:
- a] determining a position of at least one movable member of an airflow-direction control mechanism of the HVAC system;
- and
- b] calculating whether the movable member is at a target position associated with a required position of the airflow-direction control element, and if not, activating an airflow-direction-controller actuator of the HVAC system to effect a change in the position of the movable member thereby bringing the airflow-direction control element to or towards the said required position.
A HVAC system comprising:
- an airflow-direction-controller actuator;
- a movable member arranged to be actuated by the actuator, the movable member including an airflow-direction control element;
- an actuator position sensor associated with the airflow-direction-controller actuator;
- and
- a controller associated with the actuator position sensor and arranged to feedback control a position of the movable member based on the measurements received from the actuator position sensor.
A method of maintaining a position of an airflow-direction control element of a HVAC system, comprising the steps of:
- a] determining a position of at airflow-direction control element of the HVAC system;
- and
- b] determining whether the airflow-direction control element has been moved in the case of without being driven by an airflow-direction-controller actuator of the HVAC system;
- if yes, providing a current to a drive mechanism of the airflow-direction-controller actuator to change the position of the airflow-direction control element;
- if not, no current is provided to the drive mechanism of the airflow-direction-controller actuator.
Dependencies are inferred from the claim text.