Railcar moving vehicle having monitored weight transfer process including sensors for sensing transfer of full weight

摘要

A railcar moving vehicle having a hydraulic system for raising the vehicle coupler while coupled to a railroad car or the like to transfer weight from the railcar to the vehicle. By this invention, fluid pressure in the hydraulic power line is sensed, to monitor an increase in the fluid pressure as the hydraulic system raises the vehicle coupler while coupled to a railcar. Then, when a substantial termination of the increase in fluid pressure is sensed as the hydraulic coupler is raised, an indicator signals the occurrence of this event, typically by automatically terminating the hydraulic raising of the vehicle coupler. Thus, weight may be transferred without overraising the railcar, without the need for estimating the weight of the railcar prior to the weight transfer process.