Autonomous agricultural system

1 . An autonomous agricultural system comprising:

an implement configured to perform agricultural operations; and

a first autonomous power unit configured to autonomously propel said implement to perform agricultural operations,

wherein said first autonomous power unit includes a first coupling assembly configured to operably connect said implement to said first autonomous power unit,

wherein said first autonomous power unit includes a second coupling assembly configured to operably connect said first autonomous power unit to a second autonomous power unit.

2 . The autonomous agricultural system of claim 1 , wherein said first coupling assembly provides at least six degrees of freedom of movement between said implement and said first autonomous power unit.

3 . The autonomous agricultural system of claim 2 ,

wherein said implement is a first implement,

wherein said autonomous agricultural system comprises a second implement configured to perform agricultural operations,

wherein said second autonomous power unit includes a third coupling assembly configured to operably connected said second implement to said second autonomous power unit, and

wherein said third coupling assembly provides at least six degrees of freedom of movement between said second implement and said second autonomous power unit.

4 . The autonomous agricultural system of claim 1 , wherein said second coupling assembly provides least four degrees of freedom of movement between said first autonomous power unit and said second autonomous power unit.

5 . The autonomous agricultural system of claim 4 , wherein said second coupling assembly includes one or more actuators configured to permit said second coupling assembly to aid in steering said autonomous agricultural system.

6 . An autonomous agricultural system comprising:

an implement configured to perform agricultural operations;

a first power unit configured to autonomously propel said implement to perform agricultural operations,

wherein said first power unit includes at least one coupling assembly and a drive mechanism, wherein said coupling assembly is configured to operably connect said first power unit to said implement or to operably connect said first power unit to a second power unit; and

a control system configured to control said coupling assembly and said drive mechanism,

wherein said coupling assembly comprises a plurality of actuators, and wherein said control system includes a plurality of sensors configured to obtain information indicative of positions of said plurality of actuators.

7 . The autonomous agricultural system of claim 6 ,

wherein said actuators comprise hydraulic cylinders, and

wherein said sensors comprise positions sensors configured to obtain position information for said hydraulic cylinders.

8 . The autonomous agricultural system of claim 7 ,

wherein said coupling assembly is configured to operably connect said first power unit to said implement, and

wherein said coupling assembly provides at least six degrees of freedom of movement between said implement and said first power unit.

9 . The autonomous agricultural system of claim 7 ,

wherein said coupling assembly is configured to operably connect said first power unit to said second power unit, and

wherein said coupling assembly provides at least four degrees of freedom of movement between said first power unit and said second power unit.

10 . The autonomous agricultural system of claim 9 ,

wherein said coupling assembly is a first coupling assembly,

wherein said first power unit includes a second coupling assembly configured to operably connect said implement with said first power unit, and

wherein said control system is configured to simultaneously operate both said first coupling assembly and said second coupling assembly.

11 . The autonomous agricultural system of claim 10 , wherein during control of said first coupling assembly and said second coupling assembly, said control system is configured to independently (i) steer said autonomous agricultural system via control of said first coupling assembly and said drive mechanism, and (ii) position said implement via control of said second coupling system.

12 . The autonomous agricultural system of claim 11 ,

wherein said implement is a first implement, wherein said autonomous agricultural system further comprises a third coupling assembly and a second implement,

wherein said third coupling assembly is configured to operably connect said second implement to said second power unit, and

wherein said control system is configured to simultaneously operate each of said first coupling assembly, said second coupling assembly, and said third coupling system.

13 . The autonomous agricultural system of claim 12 , wherein during control of said first coupling assembly, said second coupling assembly, and said third coupling system, said control system is configured to independently (i) steer said autonomous agricultural system via control of said first coupling assembly and said drive mechanism, (ii) position said first implement via control of said second coupling system, and (iii) position said second implement via control of said third coupling system.