Electro-hydraulic auxiliary control with operator-selectable flow setpoint

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United States of America Patent

PATENT NO 8862274
SERIAL NO

12663545

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Abstract

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A work machine (10) comprises an operator interface (30), an auxiliary electro-hydraulic circuit (22 or 322) adapted to operate a hydraulic actuator (16) of an auxiliary tool (12) when the auxiliary tool (12) is attached to the work machine (10), and a controller unit (24) that communicates with the operator interface (30) and the auxiliary electro-hydraulic circuit (22 or 322). The controller unit (24) is adapted to receive from the operator interface (30) an electrical setpoint signal representative of a flow setpoint selected by an operator via the operator interface (30), and electrically operate the auxiliary electro-hydraulic circuit (22 or 322) so as to output flow from the auxiliary electro-hydraulic circuit (22 or 322) to the auxiliary tool (12) at a substantially constant magnitude represented by the flow setpoint. An associated method is disclosed.

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Patent Owner(s)

  • DEERE & COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ernst, Paul J Dubuque, US 2 16
Reiter, Dennis P Dubuque, US 5 15
Scheer, Glenn O Durango, US 7 31

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