Control system and method for a machine
A control system for a work machine having an upper frame rotatably mounted to a lower frame includes a controller configured to limit a maximum speed of the machine when a rotation angle between the upper frame and the lower frame exceeds a first predetermined value.
1. A control system for a work machine having an upper frame rotatably mounted to a lower frame, comprising:
a sensor configured to detect the rotation angle between the upper frame and the lower frame, and
a controller configured to limit a maximum travel speed of the work machine when the detected rotation angle between the upper frame and the lower frame exceeds a first predetermined value.
2. The control system of claim 1 , wherein:
the controller is configured to reduce the maximum travel speed of the work machine when the detected rotation angle is between the first predetermined value and a second predetermined value according to the rotation angle.
3. The control system of claim 2 , wherein:
at least one of the first and second predetermined values is in the range of 70-110 degrees.
4. The control system of claim 1 , further comprising:
a speed limit indicator, wherein the controller is configured to control said speed limit indicator to indicate whether the maximum travel speed is limited.
5. The control system of claim 1 , wherein:
the controller is configured to limit the maximum travel speed of the work machine to less than 10 kilometers per hour.
6. A work machine, comprising:
an upper frame rotatably mounted to a lower frame;
a sensor configured to detect the rotation angle between the upper frame and the lower frame, and
a controller configured to limit a maximum travel speed of the work machine when a rotation angle between the upper frame and the lower frame exceeds a first predetermined value.
7. The work machine of claim 6 , wherein:
the first predetermined value is in the range of 70-110 degrees.
8. A method for controlling a work machine having an upper frame rotatably mounted to a lower frame, the method comprising:
detecting a rotation angle between the upper frame and the lower frame, and
limiting a maximum travel speed of the work machine when the detected rotation angle between the upper frame and the lower frame exceeds a first predetermined value.
9. The method of claim 8 , further comprising:
reducing the maximum speed of the work machine according to the detected rotation angle when the rotation angle is between the first predetermined value and a second predetermined value.
10. The method of claim 9 , wherein:
at least one of the first and second predetermined values is in the range of 70-110 degrees.
11. A non-transitory computer readable medium containing program instructions for causing a computer to control a work machine having an upper frame rotatably mounted to a lower frame, the program instructions comprising:
limiting a maximum speed of the work machine when a rotation angle between the upper frame and the lower frame exceeds a first predetermined value.