Patent ID: 8862274
Filing Date: 2014-10-14
Classification: A01B,E02F

Abstract:
1. A method of operating an apparatus comprising a work machine adapted to travel on land and an auxiliary tool attached to the work machine and comprising a hydraulic actuator configured to move the auxiliary tool, the work machine comprising an operator's station, an operator interface located in the operator's station, an auxiliary electro-hydraulic circuit for operating the hydraulic actuator of the auxiliary tool when the auxiliary tool is attached to the work machine, and an auxiliary input device configured to control an operation of the auxiliary electro-hydraulic circuit in a first mode and in a second mode, hydraulic flow from the auxiliary electro-hydraulic circuit being proportional to a displacement of the auxiliary input device in the first mode and being based on a predetermined displacement of the auxiliary input device in the second mode, the method comprising: receiving from the operator interface an electrical setpoint signal representative of a flow setpoint selected by an operator via the operator interface, and in response to the predetermined displacement of the auxiliary input device in the second mode, electrically operating the auxiliary electro-hydraulic circuit so as to output flow from the auxiliary electro-hydraulic circuit to the hydraulic actuator of the auxiliary tool at a substantially constant magnitude represented by the flow setpoint to move the auxiliary tool.