Patent ID: 8868354
Filing Date: 2014-10-21
Classification: F16K,G05B

Abstract:
1. A method of testing a valve control system in an aircraft fuel supply system having a plurality of control valves, wherein the control system includes a processor adapted to receive feedback signals from each of the plurality of control valves, wherein each of the plurality of control valves is adapted to be operated independently by two actuator motors and the processor is adapted to receive feedback signals from each actuator motor of the plurality of control valves, the method comprising the steps of: connecting a test device to the control system such that the test device is connected for signal transmission to the processor; the test device outputting a signal to the processor simulating a feedback signal from at least one of the control valves; detecting a control signal which is output by the processor to the at least one of the control valves; and identifying the detected control signal which is output by the processor to the control valve, wherein the step of outputting a signal to the processor includes outputting a signal simulating a feedback signal from one of the independent actuator motors, to assess the processor's ability to recognize the individual state of each of the independent actuator motors.