Experimental Evaluation of the New Meter Out Sensing Architecture

This paper presents the experimental assessment of the very first prototype of Meter Out Sensing System architecture. The system, based on the proportional control of meter out valves, is a novel hydraulic architecture in the field of Mobile Machines. The objective of the hydraulic control is obtained firstly by a negative control of the supply system, adjusting the pressure drop on the meter out to a given value, secondly by a three way compensator able to regenerate the flow. The energy saving is then obtained because of lower throttle losses on meter in connection and the regeneration feature that is enabled hydraulically under specific operating condition.