Electro-Hydraulic Auxiliary Mode Control
First Claim
Patent Images
14. A work machine, comprising:
- an auxiliary input device,an auxiliary mode selector for selecting between a proportional mode and a continuous mode to obtain a selected mode,an auxiliary electro-hydraulic circuit adapted to operate a hydraulic actuator of an auxiliary tool when the auxiliary tool is attached to the work machine, anda controller unit that communicates with the auxiliary input device, the auxiliary mode selector, and the auxiliary electro-hydraulic circuit, the controller unit adapted to electrically operate the auxiliary electro-hydraulic circuit in the selected mode in response to operation of the auxiliary input device such that, in the proportional mode, the magnitude of flow outputted from the auxiliary electro-hydraulic circuit to the auxiliary tool is proportional to the displacement of the auxiliary input device, and, in the continuous mode, the magnitude of flow outputted from the auxiliary electro-hydraulic circuit to the auxiliary tool is substantially constant whenever flow is outputted from the auxiliary electro-hydraulic circuit to the auxiliary tool in the continuous mode.
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Abstract
A work machine (10) comprises an auxiliary electro-hydraulic circuit (22) adapted to operate a hydraulic actuator (16) of an auxiliary tool (12) when the auxiliary tool (12) is attached to the work machine. The auxiliary electro-hydraulic circuit (22) is electrically controlled by a controller unit (24) in a proportional mode or a continuous mode.
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Citations
25 Claims
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14. A work machine, comprising:
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an auxiliary input device, an auxiliary mode selector for selecting between a proportional mode and a continuous mode to obtain a selected mode, an auxiliary electro-hydraulic circuit adapted to operate a hydraulic actuator of an auxiliary tool when the auxiliary tool is attached to the work machine, and a controller unit that communicates with the auxiliary input device, the auxiliary mode selector, and the auxiliary electro-hydraulic circuit, the controller unit adapted to electrically operate the auxiliary electro-hydraulic circuit in the selected mode in response to operation of the auxiliary input device such that, in the proportional mode, the magnitude of flow outputted from the auxiliary electro-hydraulic circuit to the auxiliary tool is proportional to the displacement of the auxiliary input device, and, in the continuous mode, the magnitude of flow outputted from the auxiliary electro-hydraulic circuit to the auxiliary tool is substantially constant whenever flow is outputted from the auxiliary electro-hydraulic circuit to the auxiliary tool in the continuous mode. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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25-1. The work machine of claim 14, comprising an auxiliary tool, wherein the auxiliary tool comprises a hydraulic actuator fluidly coupled to the auxiliary electro-hydraulic circuit for selective operation of the auxiliary tool in the selected mode, the selected mode depending on the type of the auxiliary tool to be operated by the auxiliary electro-hydraulic circuit.
Specification