Abstract:
A hydraulic system with margin based flow supplementation is provided. The hydraulic system includes a steering pump, an implement pump and a flow sharing device. The steering pump is associated with a steering circuit. The implement pump is associated with an implement circuit. The flow sharing device is disposed between the steering circuit and the implement circuit and is configured to operate in one of a first mode and a second mode. Further, the flow sharing device allows hydraulic fluid to flow from the implement circuit to the steering circuit in the first mode, when a margin pressure of the steering circuit is below a threshold value, and the flow sharing device stops the hydraulic fluid to flow from the implement circuit to the steering circuit in the second mode, when the margin pressure of the steering circuit is equal to or above the threshold value.
Abstract:
A hydraulic system for a machine includes an implement pump, a valve, and an implement valve subsystem. The implement pump includes a load sensing control, and the valve controls the flow of hydraulic fluid to the implement pump. The implement valve subsystem includes one or more implement control subsystems to control movement of an implement. The valve is an electrohydraulic proportional relief valve and includes a solenoid configured to adjust the pressure of hydraulic fluid delivered to the implement pump proportionally to a current delivered through the solenoid.
Abstract:
A hydraulic system for a machine includes an implement pump, a valve, and an implement valve subsystem. The implement pump includes a load sensing control, and the valve controls the flow of hydraulic fluid to the implement pump. The implement valve subsystem includes one or more implement control subsystems to control movement of an implement. The valve is an electrohydraulic proportional relief valve and includes a solenoid configured to adjust the pressure of hydraulic fluid delivered to the implement pump proportionally to a current delivered through the solenoid.
Abstract:
A machine supports multiple selectable operating modes for operator input devices. An operator input device and associated input sensor convert physical operator actions into operator input control signals. A force feedback device, associated with the operator input device, exerts a resistive force based upon force feedback signals issued by the programmed controller. A machine subsystem includes an actuator configured to change an operational state of the machine according to machine control commands issued by the programmed controller based upon the operator input control signals. An operator input device configuration unit receives directions for specifying an operator input device configuration definition. The operator input device configuration definition specifies a mapping between the operator input control signals and the machine control commands. The operator input device configuration definition specifies at least an operator input device mode, and a force feedback mode based at least in part upon the operator input device mode.