Patent ID: 6862914
Filing Date: 2005-03-08
Classification: G05B,Y10T

Abstract:
1. A method of testing a variable function voting solenoid-operated valve, the method comprising: disposing a first solenoid-operated valve, a second solenoid-operated valve, and a bypass valve in mutual fluid communication; disposing a first pressure sensor in fluid communication with said first solenoid-operated valve; disposing a second pressure sensor in fluid communication with said second solenoid-operated valve; disposing a third pressure sensor in fluid communication with said bypass valve; disposing a logic control system in electronic communication with each of said first solenoid-operated valve and said second solenoid-operated valve, and in electronic communication with each of said first pressure sensor, said second pressure sensor, and said third pressure sensor; selectively activating one of either a 1-out-of-1 with hot stand-by testing mode and a 2-out-of-2 with high diagnostics testing mode; de-energizing said first solenoid-operated valve and confirming a closed state of said first pressure sensor; re-energizing said first solenoid-operated valve and confirming an open state of said first pressure sensor; de-energizing said second solenoid-operated valve and confirming a closed state of said second solenoid-operated valve; and re-energizing said second solenoid-operated valve and confirming an open state of said second pressure sensor.