Patent ID: 7827944

Claim:
A control system for a hydraulic system (HS) that controls a fluid supply in an engine, comprising: a timer module that determines a response time of said HS to perform at least one of: increasing a pressure of said fluid supply above a predetermined threshold following a state change command and decreasing said pressure of said fluid supply below said predetermined threshold following said state change command; an update module that updates a desired time of said HS based on said response time of said HS; a pressure sensor that senses said pressure of said fluid supply; a control valve (CV) of said HS that controls said fluid supply; and a command module that selectively generates and transmits said state change command to said CV when said engine requires a mode change and said engine is operating within a predetermined operating range, wherein said timer module stores a first time when said command module transmits said state change command to said CV and stores a second time when a comparison module detects that said pressure of said fluid supply has at least one of: exceeded said predetermined threshold and fallen below said predetermined threshold, wherein said response time of said HS is based on a difference between said first time and said second time.