Dual bus architecture for high reliability control of helicopter hoist
AssigneeGoodrich Corporation
InventorsRichard Bryson, Owen Riehle
Life of this patent
Estimating the term…
Abstract
A control system for a rescue hoist attached to an aircraft is disclosed. In various embodiments, the control system includes a first bus extending between a control module of the rescue hoist and a control input device; and a second bus extending between the control module of the rescue hoist and the control input device. The first bus is configured to transmit a first signal from the control input device to the control module and the second bus is configured to transmit a second signal from the control input device to the control module, both the first signal and the second signal being generated by the control input device in response to a manipulation of the control input device.
Claims15
A control system for a rescue hoist attached to an aircraft, comprising:
- a first bus extending between a control module of the rescue hoist and a control input device;
- and
- a second bus extending between the control module of the rescue hoist and the control input device,
- wherein the first bus is configured to transmit a first signal from the control input device to the control module and the second bus is configured to transmit a second signal from the control input device to the control module, both the first signal and the second signal being generated by the control input device in response to a manipulation of the control input device;
- the control module is configured to compare the first signal against the second signal;
- and
- the control module is configured to respond to a command signal generated by the control input device, the command signal embodied in the first signal and the second signal, when the control module determines the first signal is the same as the second signal.
A rescue system for an aircraft, comprising:
- a rescue hoist;
- a control input device configured to provide a command signal to the rescue hoist;
- a first bus extending between a control module of the rescue hoist and the control input device;
- and
- a second bus extending between the control module of the rescue hoist and the control input device,
- wherein the first bus is configured to transmit a first signal from the control input device to the control module and the second bus is configured to transmit a second signal from the control input device to the control module, both the first signal and the second signal being generated by the control input device in response to a manipulation of the control input device;
- the control module is configured to compare the first signal against the second signal;
- and
- the control module is configured to respond to the command signal, the command signal embodied in the first signal and the second signal, when the control module determines the first signal is the same as the second signal.
A method of controlling a rescue hoist for an aircraft, comprising:
- transmitting a first signal across a first bus extending between a control module of the rescue hoist and a control input device;
- transmitting a second signal across a second bus extending between the control module of the rescue hoist and the control input device;
- and
- comparing the first signal against the second signal to determine whether the first signal is the same as the second signal;
- wherein the control module is configured to respond to a command signal generated by the control input device, the command signal embodied in the first signal and the second signal, when the control module determines the first signal is the same as the second signal.
Dependencies are inferred from the claim text.