Flow reduction for bleed air systems

摘要

A valve control system includes a valve connected to regulate flow of a medium provided to an output and a sensor connected to monitor a feedback value associated with the medium. A controller modulates the valve based on a comparison of a reference value to the feedback value provided by the sensor. The controller detects saturation of the valve if the error between the monitored feedback value and reference value exceeds a threshold. In response to detected saturation, the controller reduces the reference value to a value less than the monitored feedback value.

主权项

1. A method of operating a flow control valve, the method comprising:
receiving a feedback value associated with a medium provided through the flow control valve; generating an error value by comparing the monitored feedback value to a reference value; detecting saturation of the flow control valve if the error value is greater than a threshold; de-saturating the flow control valve by decreasing the reference value to a value less than the monitored feedback value; and modulating the flow control valve based on the decreased reference value.