ELECTRONIC CONTROL OF ACTUATOR FORCE AND TORQUE WITH AN INDEPENDENT METERING VALVE

摘要

14-0143 Abstract ELECTRONIC CONTROL OF ACTUATOR FORCE AND TORQUE WITH AN INDEPENDENT METERING VALVE A hydraulic system (114) includes one or more sensors (158) configured to measure a pressure at least one input or end of a hydraulic actuation device, such as a cylinder (99) for example. A control module (112) can be operatively coupled to the sensors (158) and at least one metering valve (164). 10 The control module (112) can selectively open the metering valve (164) when the pressure at one of the ends of the cylinder (99) reaches a first pressure threshold to control the force on the cylinder (99) rod (132), to permit flow from the end of the cylinder (99) to the tank (156). -COD C' I -I 4c C4 C4% CC,. u-;o Co COo T Co, Io I U-.) Co% Co Co ColJ