Method and a device for sensorless ascertaining of volume flow and pressure
Assigneeebm-papst Mulfingen GmbH & Co. KG
InventorWalter EBERLE
Life of this patent
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Abstract
A method for ascertaining volume flow or pressure for controlling a ventilator, operated by an EC motor, of a specific ventilation device to a specific operating point in order to achieve and maintain a specified nominal volume flow strength or nominal pressure of the ventilation device without use of a pressure or volume flow sensor. The volume flow is ascertained by an artificial neuronal network on the basis of a sequential learning method with a number of learning steps. A linking of n artificial neurons in one or more layers is provided. At least one entry layer Pi is provided in order to process a number of I input parameters, that have a direct or indirect influence on the volume flow in the ventilation device.
Claims12
-10. (canceled)
A method for ascertaining the volume flow or pressure for regulating a fan of a particular ventilation unit that is operated by an EC motor at a specific operating point in order to achieve and maintain a predetermined target volume flow intensity or target pressure of the ventilation unit without using a pressure sensor or volume flow sensor comprising:
- determining the volume flow by an artificial neural network based on a sequential learning process;
- providing a number of learning steps where a concatenation of n artificial neurons is provided in one or more layers;
- providing at least one input layer Pi;
- and
- processing a number of input parameters, which have a direct or indirect influence on the volume flow in the ventilation unit.
Dependencies are inferred from the claim text.