Autonomous vehicle applique
This disclosure provides a device and a system for retrofitting a vehicle for unmanned operation. The system can have a navigation computer that can provide commands to a plurality of actuators for manipulating the onboard controls of a vehicle. The navigation computer can receive input from one or more remote operators and from a variety of sensors. The plurality of actuators can include a steering actuator that surrounds a steering column or a steering column housing to engage with a steering wheel of the vehicle. The steering actuator can have tongs that engage the steering wheel. The tongs can be coupled to an inner gear ring that can rotate within an outer housing of the steering actuator. Rotation of the tongs can interact with and move the steering wheel in response to commands from the navigation computer.
1. A device for retrofitting a vehicle for unmanned operation, the device comprising:
an outer housing having a gear race;
an inner gear ring having a plurality of attachment points and located in the gear race;
at least one tong coupled to the inner gear ring at one of the one or more attachment points of the plurality of attachment points, each tong of the at least one tong having an integral tong arm extending away from the inner gear ring and configured to engage with one or more spokes of a steering wheel of the vehicle; and
a servo motor having a pinion gear drivingly engaged with the inner gear ring within the gear race, the servo motor configured to receive commands from a navigation computer.
2. The device of claim 1 , wherein the outer housing and the inner gear ring surround a steering column of the vehicle.
3. The device of claim 2 , wherein the inner gear ring comprises a removable gear ring section.
4. The device of claim 2 , wherein the outer housing comprises an upper portion coupled to a lower portion by a hinge assembly, the upper portion having a first fastener end opposite the hinge assembly and the lower portion having a second fastener end opposite the hinge assembly, the first fastener end and the second fastener end configured to be coupled together with a connecting assembly to form the gear race and surround the steering column.
5. The device of claim 4 further comprising:
an upper mounting bracket operably coupled to the upper portion of the outer housing and the vehicle; and
a lower mounting bracket operably coupled to the lower portion of the outer housing and the vehicle.
6. The device of claim 2 , wherein the outer housing comprises an upper portion coupled to a lower portion by a first connecting assembly at a first end, the upper portion being coupled to the lower portion by a second connecting assembly at a second end to form the gear race and surround the steering column.
7. The device of claim 1 , wherein the at least one tong comprises two tongs, wherein each of the two tongs engages with the inner gear ring in positions which cause them to interact with the one or more spokes of the steering wheel.
8. The device of claim 1 , wherein the at least one tong engages with the inner gear ring via the one or more attachment points, the at least one tong being adjustable to a position about a circumference of the inner gear ring.
9. The device of claim 1 , wherein the outer housing further comprises one or more rollers operable to support a rotation of the inner gear ring along the gear race and within the outer housing.
10. A system for operating an unmanned vehicle comprising:
a memory configured to store navigation data;
a processor coupled to the memory and configured to generate commands for control of the vehicle;
a steering actuator being coupled to the processor and operable to rotate a steering wheel of the vehicle according to the commands, the steering actuator having one or more tongs operable to engage one or more spokes of the steering wheel without being coupled to the steering wheel.
11. The system of claim 10 , wherein the steering actuator further comprises:
an inner gear ring having a plurality of attachment points formed about a top surface and operable to engage with the one or more tongs;
an outer housing having a gear race formed to accept the inner gear ring in a clearance fit; and
a servo motor operable to rotate the inner gear ring within the gear race according to the commands, wherein movement of the inner gear ring rotates the one or more tongs to rotate the steering wheel.
12. The system of claim 11 , wherein the outer housing comprises an upper portion coupled to a lower portion via a hinge assembly at a first end, the upper portion and the lower portion forming a gear race when coupled by a connecting assembly at a second end.
13. The system of claim 12 , wherein the inner gear ring has a removable gear ring section to accommodate a steering column during installation.
14. The system of claim 10 further comprising a plurality of sensors coupled to the processor and configured to provide at least speed and location information to the processor,
wherein the plurality of sensors and the processor are operable to allow the unmanned vehicle to autonomously follow a preprogrammed mission plan.
15. A steering actuator for an unmanned vehicle, the unmanned vehicle having a dashboard, a steering column and a steering wheel having spokes, the steering actuator comprising:
an outer housing formed to surround the steering column between the dashboard and the steering wheel, the outer housing having a gear race;
an inner gear ring disposed within the gear race, the inner gear ring having a top surface formed with a plurality of attachment points and a plurality of gear teeth formed along a circumference of the inner gear ring;
one or more tongs coupled to one or more attachment points of the plurality of attachment points, the one or more tongs extending through an interior portion of the steering wheel and interacting with the spokes without being coupled to any portion of the steering wheel; and
a servo motor coupled to the outer housing and operable to move the inner gear ring and the tongs.
16. The steering actuator of claim 15 , wherein the outer housing comprises an upper portion hingably coupled to a lower portion via a hinge assembly at a first end, the upper portion and the lower portion forming the gear race when coupled by a connecting assembly at a second end,
wherein the upper portion and the lower portion each have a curved shape.
17. The steering actuator of claim 16 further comprising:
an upper mounting bracket operably coupled to the upper portion of the outer housing and the vehicle; and
a lower mounting bracket operably coupled to the lower portion of the outer housing and the vehicle.
18. The steering actuator of claim 15 , wherein the servo motor is configured to receive commands from a navigation computer.
19. The steering actuator of claim 15 , wherein the gear race comprises one or more rollers engaged with the gear teeth of the inner gear ring.
20. The steering actuator of claim 15 , wherein the servo motor is drivingly engaged with the inner gear ring.