System and Method for Improved Pressure Adjustment

A method for adjusting pressure within an air bed comprising:

• providing an air bed having an air chamber, a pump, a pump manifold, and a tube extending between the chamber and the pump;
• selecting a desired pressure setpoint for the air chamber;
• calculating a manifold pressure target, wherein the manifold pressure target is calculated based upon the desired pressure setpoint and a pressure adjustment factor;
• sensing pressure within the pump manifold;
• adjusting pressure within the air chamber until the sensed manifold pressure is within an acceptable pressure target error range of the manifold pressure target;
• determining an actual chamber pressure within the air chamber;
• comparing the actual chamber pressure to the desired pressure setpoint to determine an adjustment factor error;
• modifying the pressure adjustment factor based upon the adjustment factor error;
• and
• storing the modified pressure adjustment factor in memory.

A method for adjusting pressure within an air bed comprising:

• (a) providing an air bed, the air bed including an air chamber and a pump having a pump housing;
• (b) selecting a desired pressure setpoint for the air chamber;
• (c) calculating a pressure target, wherein the pressure target is calculated based upon the desired pressure setpoint and a pressure adjustment factor;
• (d) adjusting pressure within the air chamber until a pressure within the pump housing is substantially equal to the pressure target;
• (e) determining an actual chamber pressure within the air chamber;
• (f) comparing the actual chamber pressure to the desired pressure setpoint to determine an adjustment factor error;
• (g) calculating an updated pressure adjustment factor based upon the adjustment factor error;
• and
• (h) repeating steps (b)-(g) with the updated pressure adjustment factor.

A pressure adjustment system for an air bed comprising:

• an air chamber;
• a pump in fluid communication with the air chamber, the pump including a pump manifold and at least one valve;
• an input device adapted to receive a desired pressure setpoint selected by a user;
• a pressure sensing means adapted to monitor pressure within the pump manifold;
• and
• a control device operably connected to the input device and to the pressure sensing means, the control device having control logic that is capable of calculating a manifold pressure target based upon the desired pressure setpoint and a pressure adjustment factor, monitoring pressure within the pump manifold, adjusting pressure within the air chamber until the sensed manifold pressure is within an acceptable pressure target error range of the manifold pressure target, comparing an actual chamber pressure to the desired pressure setpoint to quantify an adjustment factor error, and calculating an updated pressure adjustment factor based upon the adjustment factor error.