Air flow control system and method for vehicle ventilation

摘要

An air flow control system and method for vehicle ventilation operates such that the operating speed of the blower providing ventilation air is changed to substantially maintain a selected air flow rate despite changes to the state of one or more passenger-operable vents. In a first embodiment, a pressure sensor in the air flow plenum provides a signal to a speed controller which alters the operating speed of the blower in view of the measured backpressure in the plenum.