An aircraft cabin pressure control system implements control logic that
significantly reduces potentially uncomfortable pressure bumps that can
occur during aircraft take-off rotation both with and without cabin
pressuring fluid flowing into the aircraft cabin. The control logic
implemented by the cabin pressure control system, among other things,
determines whether the cabin pressurizing fluid is flowing into the
aircraft cabin. If the cabin pressurizing fluid is flowing into the
aircraft cabin, aircraft cabin altitude is controlled to at least a first
predetermined minimum altitude value below the take-off altitude. If the
cabin pressurizing fluid is not flowing into the aircraft cabin, aircraft
cabin altitude is controlled to at least a second predetermined minimum
altitude value above the take-off altitude.