Implement contouring toolbar

1. A system, comprising:

an elongate frame member;

an elongate toolbar coupled to the frame member via a hinged joint, the toolbar oriented parallel to the frame member;

a plurality of row units coupled to the toolbar;

a first sensor configured to sense a position of the toolbar relative to ground;

a second sensor configured to sense an angle of the toolbar relative to the frame member; and

an actuator coupled between the frame member and the toolbar, the actuator configured to rotate the toolbar relative to the frame member based on a sensed position of the toolbar, wherein the toolbar remains parallel to the frame member throughout the rotation of the toolbar.

2. The system of claim 1 , further comprising a controller configured to receive first and second signals from the first and second sensors and cause actuation of the actuator based on the first and second signals.

3. The system of claim 2 , further comprising a control component that actuates the actuator, wherein the controller is configured to cause actuation by sending a signal to the control component.

4. The system of claim 3 , wherein the control component comprises a control valve, an air valve, an electronic control component, a magnetic control component, or an electromagnetic control component.

5. The system of claim 2 , wherein the controller is further configured to cause adjustment of a rate of rotation based on the first signals from the first sensor.

6. The system of claim 1 , further comprising a controller, the controller configured to receive a signal from the first sensor and cause actuation of the actuator based on the signal.

7. The system of claim 6 , further comprising a control component that actuates the actuator, wherein the controller is configured to cause actuation by sending a signal to the control component.

8. The system of claim 7 , wherein the control component comprises a control valve, an air valve, an electronic control component, a magnetic control component, or an electromagnetic control component.

9. The system of claim 6 , wherein the controller is further configured to cause adjustment of a rate of rotation based on the signal from the first sensor.

10. The system of claim 1 , wherein the sensed position is relative to a field surface, further comprising one or more electromagnetic sensors coupled to the frame member, the toolbar, or a combination of the frame member and the toolbar, the one or more electromagnetic sensors configured to sense an absolute elevation or change in elevation between the field surface and the toolbar or a combination of both the frame member and the toolbar.

11. The system of claim 10 , further comprising a controller configured to receive one or more signals from the one or more electromagnetic sensors and cause actuation of the actuator based on the one or more signals.

12. The system of claim 11 , further comprising a control component that actuates the actuator, wherein the controller is configured to cause actuation by sending a signal to the control component.

13. The system of claim 12 , wherein the control component comprises a control valve, an air valve, an electronic control component, a magnetic control component, or an electromagnetic control component.

14. The system of claim 11 , wherein the controller is further configured to cause adjustment of a rate of rotation based on the one or more signals from the one or more electromagnetic sensors.

15. The system of claim 10 , wherein the one or more electromagnetic sensors comprise ultrasonic, lidar, or radar sensors.

16. The system of claim 1 , wherein the actuator is configured to rotate the toolbar throughout an obtuse angle range.

17. A control system for an implement comprising a frame member and a toolbar coupled to the frame member parallel to the frame member via a hinged joint such that the toolbar remains parallel to the frame member throughout the rotation of the toolbar about the hinged joint, wherein a plurality of row units are secured to the toolbar, the control system comprising:

a controller;

a first sensor configured to sense a position of the toolbar relative to ground;

a second sensor configured to sense an angle of the toolbar relative to the frame member; and

an actuator coupled between the frame member and the toolbar, wherein the controller is configured to receive at least one signal from the at least one sensor indicating the position of the toolbar relative to the ground and cause the actuator to rotate the toolbar based on the sensed position of the toolbar.

18. The system of claim 1 , further comprising at least one wheel coupled to the frame member and at least partially supporting the frame member relative to the ground.