| 摘要 |
A method for resetting a calibration of a sensor operating out-of-range in a hydraulic actuation system (10) is provided. The hydraulic actuation system (10) includes a pump (14), a reservoir (12), a plurality of work-ports (32, 34, 68, 70), a plurality of sensors /18, 24, 40, 48, 60, 76), and a valve system (22, 38, 46, 54, 58, 74, 82, 88), and a controller (90) for regulating the hydraulic actuation system (10) based on fluid flow demand and sensed pressures. The method includes detecting the sensor operating out-of-range, opening all work-ports (32, 34, 68, 70) to the reservoir (12), resetting all sensors /18, 24, 40, 48, 60, 76) to reservoir (12) pressure, supplying all sensors (18, 24, 40, 48, 60, 76) with fluid at maximum pump (14) pressure, and sensing the maximum pump (14) pressure at each sensor. Additionally, the method includes determining an average pressure value across all sensors (18, 24, 40, 48, 60, 76), assigning the determined average pressure value to the sensor that is operating out-of-range, and resetting the calibration of the sensor that is operating out-of-range based on the reservoir (12) pressure and the average pressure values. |
