Bale forming control system and method

1. A bale forming control system, comprising:

a bale chamber configured to form a bale from crop material by rotating the bale in the bale chamber;

a driving mechanism configured to cause the bale to be rotated in the bale chamber;

a bale density pressure mechanism configured to apply density pressure to the rotating bale;

at least one sensor configured to sense a bale moisture content when the bale is forming; and

a controller configured to:

receive a bale moisture content value corresponding to the bale moisture content and control formation of the bale;

automatically determine a power take-off speed of the driving mechanism based on the received bale moisture content value; and

cause the determined power take-off speed to be applied to the driving mechanism,

wherein the power take-off speed is applied through a power take-off shaft, a rotational speed of which is the power take-off speed which is adjustable based at least in part on the received bale moisture content value, the power take-off shaft being configured for connecting to a vehicle and drawing energy from the vehicle and transferring that energy to the driving mechanism.

2. The bale forming control system of claim 1 , wherein the controller is further configured to apply a bale chamber speed that is fixed relative to the power take-off speed.

3. The bale forming control system of claim 2 , further comprising a feeder mechanism configured to pick up and feed the crop material to the bale chamber, and

wherein the controller is further configured to vary the power take-off speed relative to a crop pickup speed of the feeder mechanism while the bale chamber speed remains fixed relative to the power take-off speed.

4. The bale forming control system of claim 3 , wherein the controller is configured to cause the bale chamber speed to lower so the bale chamber speed remains fixed relative to the power take-off speed.

5. The bale forming control system of claim 1 , in combination with an agricultural harvester wherein at least the bale chamber of the bale forming control system is supported by a frame of the agricultural harvester.

6. The bale forming control system of claim 5 , in combination with the agricultural harvester, wherein the agricultural harvester is a round baler and the power take-off shaft is located adjacent a hitch of the round baler.

7. The bale forming control system of claim 5 , in combination with the agricultural harvester, wherein the controller is further configured to cause a bale chamber speed to increase during a net wrapping cycle.

8. A method of controlling formation of a bale with a control system of an agricultural harvester, the method comprising:

rotating a bale of crop material in a bale chamber;

applying bale density pressure to the rotating bale;

receiving from a sensor a bale moisture content value corresponding to a bale moisture content when the bale is forming;

automatically determining with the control system an amount of bale density pressure to be applied to the bale to achieve a desired density of the bale responsive to receiving the bale moisture content value;

applying through the control system the determined amount of bale density pressure;

automatically determining a power take-off speed of a drive mechanism based on the received bale moisture content value; and

applying the determined power take-off speed to the drive mechanism, wherein the power take-off speed is applied through a power take-off shaft, a rotational speed of which is the power take-off speed which is adjustable based at least in part on the received bale moisture content value, the power take-off shaft being configured for connecting to a vehicle and drawing energy from the vehicle and transferring that energy to the driving mechanism.

9. The method of claim 8 , further comprising applying a bale chamber speed that is fixed relative to the power take-off speed.

10. The method of claim 8 , further comprising varying the power take-off speed relative to a crop pickup speed while the bale chamber speed remains fixed relative to the power take-off speed, the at least one operating condition being the bale moisture content.

11. The method of claim 8 , further comprising increasing a bale chamber speed during a net wrapping cycle.

12. A method of controlling formation of a bale, the method comprising:

forming a bale from crop material by rotating the bale in a bale chamber;

receiving with a controller of a control system a bale moisture content value corresponding to a bale moisture content sensed by a sensor when the bale is forming;

automatically determining with the controller a power take-off speed of a drive mechanism based on the received bale moisture content value; and

applying with the control system the determined power take-off speed to the drive mechanism, wherein the power take-off speed is applied through a power take-off shaft, a rotational speed of which is the power take-off speed which is adjustable based at least in part on the received bale moisture content value, the power take-off shaft being configured for connecting to a vehicle and drawing energy from the vehicle and transferring that energy to the driving mechanism.

13. The method of claim 12 , further comprising:

automatically determining with the controller an amount of bale density pressure to be applied to the bale to achieve the desired density responsive to receiving the received bale moisture content value; and

applying the determined amount of bale density pressure to the bale.

14. The method of claim 12 , further comprising applying a bale chamber speed that is fixed relative to the power take-off speed.

15. The method of claim 12 , further comprising varying the power take-off speed relative to a crop pickup speed while the bale chamber speed remains fixed relative to the power take-off speed.

16. The method of claim 12 , further comprising increasing a bale chamber speed during a net wrapping cycle.