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System and method for a pressure signal linearization transfer function

  • US 9,086,189 B2
  • Filed: 05/16/2012
  • Issued: 07/21/2015
  • Est. Priority Date: 05/16/2012
  • Status: Active Grant
First Claim
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1. A method for operating a pneumatic lumbar support between a deflated position and an inflated position, comprising:

  • inflating a bladder of the pneumatic lumbar support;

    sensing a pressure within the bladder using a pressure sensor;

    producing an inflation output signal from the pressure sensor, wherein the inflation output signal is a function of time;

    converting the inflation output signal using an inflation-deflation transfer function, wherein at least a portion of the inflation-deflation transfer function converts a non-linear portion of the inflation output signal to a linear function; and

    adjusting displacement of the bladder based on the converted inflation output signal.

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