AUXILIARY HYDRAULIC FLOW CONTROL SYSTEM FOR A SMALL LOADER
First Claim
1. A vehicle having an engine, a drive system operably coupled to the engine for causing the vehicle to move relative to a support surface including a drive handle operable by an operator for providing a signal indicative of a desired direction of travel, and an auxiliary power system operably coupled to the engine for supplying a power source to an implement during an active state and refraining from supplying the power source to the implement during an inactive state, the auxiliary power system comprising:
- an auxiliary power enablement device having an enablement component moveable between an actuated position, wherein the auxiliary power enablement device enables the power source to be supplied to the implement, and a de-actuated position, wherein the auxiliary power enablement device prevents the auxiliary power from being supplied to the implement;
an auxiliary actuator, operably coupled to the power enablement device, and capable of being manipulated by an operator between a first position corresponding to the de-actuated position of the enablement component and a second position corresponding to the actuated position of the auxiliary power enablement component;
an operator actuable continuous actuation device movable between an engaged position and a disengaged position that is configured to provide an actuation signal indicative of the position of the operator actuable continuous actuation device; and
a continuous enablement actuator, capable of engaging the enablement component when the power enablement device is in the actuated position to discourage the enablement component from moving to the de-actuated position while the continuous enablement actuator is engaging the enablement component;
wherein the continuous enablement actuator is configured to engage the enablement component when the actuation signal is indicative of one of the engaged position and the disengaged position and is configured to attempt to be disengaged from the enablement component with the actuation signal is indicative of the other of the engaged position and the disengaged position.
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Accused Products
Abstract
A vehicle having an auxiliary power system for supplying power to an implement is disclosed. The power system includes a power enablement device having an enablement component that allows or prevents supplying power to the implement, and an auxiliary actuator operably coupled to the power enablement device. The auxiliary actuator can be manipulated between a first, de-actuated position and a second, actuated position. An operator actuable continuous actuation device is moveable between engaged and disengaged positions, providing an actuation signal indicative of its position. A continuous enablement actuator is capable of engaging the enablement component when the enablement component is in the actuated position to discourage the enablement component from moving to the de-actuated position. The continuous enablement actuator engages the enablement component when the actuation signal indicates one of the engaged and disengaged positions and is disengaged from the enablement component when the actuation signal indicates the other position.
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Citations
20 Claims
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1. A vehicle having an engine, a drive system operably coupled to the engine for causing the vehicle to move relative to a support surface including a drive handle operable by an operator for providing a signal indicative of a desired direction of travel, and an auxiliary power system operably coupled to the engine for supplying a power source to an implement during an active state and refraining from supplying the power source to the implement during an inactive state, the auxiliary power system comprising:
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an auxiliary power enablement device having an enablement component moveable between an actuated position, wherein the auxiliary power enablement device enables the power source to be supplied to the implement, and a de-actuated position, wherein the auxiliary power enablement device prevents the auxiliary power from being supplied to the implement; an auxiliary actuator, operably coupled to the power enablement device, and capable of being manipulated by an operator between a first position corresponding to the de-actuated position of the enablement component and a second position corresponding to the actuated position of the auxiliary power enablement component; an operator actuable continuous actuation device movable between an engaged position and a disengaged position that is configured to provide an actuation signal indicative of the position of the operator actuable continuous actuation device; and a continuous enablement actuator, capable of engaging the enablement component when the power enablement device is in the actuated position to discourage the enablement component from moving to the de-actuated position while the continuous enablement actuator is engaging the enablement component; wherein the continuous enablement actuator is configured to engage the enablement component when the actuation signal is indicative of one of the engaged position and the disengaged position and is configured to attempt to be disengaged from the enablement component with the actuation signal is indicative of the other of the engaged position and the disengaged position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of providing a power source to an implement from a vehicle having an engine, a drive system operably coupled to the engine, and a power control system for providing the power source including a power enablement device moveable between an actuated position and a de-actuated position for selectively providing the power source to the implement, the method comprising:
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receiving an operator signal from a sensing mechanism indicative of the position of a operator actuable continuous actuation device, wherein the operator actuable continuous actuation device has an engaged position and a disengaged position and is biased toward the disengaged position; and providing an enablement signal to a continuous enablement actuator indicative of urging the continuous enablement actuator to attempt one of engaging the power enablement device and disengaging the power enablement device, wherein; engaging the power enablement device with the continuous enablement actuator prevents the power enablement device from moving to the de-actuated position; and dis-engaging the continuous enablement actuator from the power enablement device allows the power enablement device to move to the de-actuated position; wherein the signal indicative of engaging the power enablement device is provided when the operator signal received is indicative of one of the engaged position and the disengaged position, but not the other of the engaged position and the disengaged position. - View Dependent Claims (12, 13, 14, 15)
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16. A hydraulic system for a loader configured to provide hydraulic fluid to an implement attached to the loader, the hydraulic system comprising:
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a valve having a de-actuated position, which blocks hydraulic fluid from being supplied to the implement and actuated position, which allows hydraulic fluid to be supplied to the implement, wherein the valve has a bias toward the de-actuated position; an actuator, operably coupled to the valve, and capable of being manipulated by an operator to overcome the bias and cause the valve to move from the de-actuated position to the actuated position; an enabling member movable between an engaged position and a disengaged position and configured to provide an enablement signal indicative of the position of the enabling member; a continuous engagement member, capable of engaging the valve when the valve is the actuated position to encourage the valve to remain in the actuated position while the continuous engagement member is engaged with the valve; and wherein the continuous engagement member is configured to attempt to engage the valve when the enablement signal is indicative of one of the engaged position and the disengaged position and disengage from the valve when the enablement signal is indicative of the other of the engaged position and the disengaged position. - View Dependent Claims (17, 18, 19, 20)
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Specification