| 摘要 |
<p>PROBLEM TO BE SOLVED: To automate alignment of a geographic surface altering implement. SOLUTION: A tilt angle control system comprises first and second sensors for sensing the position of the rod end portion of first and second lift jacks 40 and 42. A controller calculates the actual tilt angle of an implement connected to the rod end portions 48 and 50 of the lift jacks based on a difference in the amount of extension relative to a baseline. A display device displays the actual and dewed tilt angles. The controller compares the actual tilt angle to the desired tilt angle, and actuates a fluid operated system to move one of the first and second jacks 49 and 42, in response to a difference between the desired and actual tilt angles. An inclinometer sensed angle of the machine relative to a horizontal plane is added to the actual tilt angle, to correct the actual tilt angle of the implement. The tilt angle control system is particularly suited for use on a bulldozer.</p> |
