Patent ID: 6901341

Claim:
A method for calibrating a smart resolution valve pressure control having a plurality of release times and a corresponding plurality of hold times said method comprising the additional steps of: a) applying a release pulse of one of a first predetermined duration of a selected one of said plurality of release times and applying a hold pulse of a second predetermined duration corresponding to said selected one of said plurality of release times to a valve controlling pressure to a brake cylinder initially having a minimum first predetermined pressure; b) measuring an elapsed time that said brake cylinder changes from a second predetermined pressure to a third predetermined pressure; c) increasing said first predetermined duration and decreasing said second predetermined duration if said elapsed time is greater than a first predetermined time, and decreasing said first predetermined duration and increasing said second predetermined duration if said elapsed time is less than a second predetermined time; and d) repeating steps (a) through (c) if said first predetermined duration changes in step (c).