Abstract: A ventilation system includes a seat bottom blower unit configured to selectively draw an airflow into a seat bottom of the vehicle seat, a seat back blower unit configured to selectively draw an airflow into a seat back of the vehicle seat, and a controller in signal communication with the seat bottom blower unit and the seat back blower unit, the controller configured to generate a common pulse width modulation (PWM) duty cycle signal. The seat bottom blower unit is configured to operate at a first predetermined blower speed based on the common duty cycle signal, and the seat back blower unit is configured to operate at a second different predetermined speed based on the common duty cycle signal. The seat bottom blower unit and the seat back blower units are configured to simultaneously operate at different speeds based on the common duty cycle signal.

Abstract: A manifold is coupled to a foam core with a primary manifold opening with a blind coupling fixedly positioned adjacent the B-side of the foam core. Front and rear hook members extend from a coupling frame of the blind coupling. Front and rear lips are positioned on opposite sides of a blower opening with a domed framework. The front hook members are positioned relative to the coupling frame to hook the front lip to provide fore and aft positioning of the blind coupling relative to the blower opening. The front hook members are designed to slide laterally along the front lip and to cause the coupling frame to engage the domed framework to provide lateral positioning of the blind coupling relative to the blower opening.

Abstract: A ventilation system includes a seat bottom blower unit configured to selectively draw an airflow into a seat bottom of the vehicle seat, a seat back blower unit configured to selectively draw an airflow into a seat back of the vehicle seat, and a controller in signal communication with the seat bottom blower unit and the seat back blower unit, the controller configured to generate a common pulse width modulation (PWM) duty cycle signal. The seat bottom blower unit is configured to operate at a first predetermined blower speed based on the common duty cycle signal, and the seat back blower unit is configured to operate at a second different predetermined speed based on the common duty cycle signal. The seat bottom blower unit and the seat back blower units are configured to simultaneously operate at different speeds based on the common duty cycle signal.

Abstract: A manifold is coupled to a foam core with a primary manifold opening with a blind coupling fixedly positioned adjacent the B-side of the foam core. Front and rear hook members extend from a coupling frame of the blind coupling. Front and rear lips are positioned on opposite sides of a blower opening with a domed framework. The front hook members are positioned relative to the coupling frame to hook the front lip to provide fore and aft positioning of the blind coupling relative to the blower opening. The front hook members are designed to slide laterally along the front lip and to cause the coupling frame to engage the domed framework to provide lateral positioning of the blind coupling relative to the blower opening.