| 摘要 |
PURPOSE:To improve control precision by integrating two kinds of voltage signal from a sensor and preventing correction control over the attitude of a bucket from becoming unstable. CONSTITUTION:A plus-side voltage signal and a minus-side voltage signal equivalent to it which are transmitted independently from limit switches 14a and 14b through selective turning-on operation are integrated by a circuit 12a continuously at set intervals of time. A deciding circuit 12b specifies the attitude correcting direction of the bucket 6 to an opposite vehicle on the basis of the integral value so that the calculated integral value is 0. A cylinder 7 for the bucket is therefore put in automatic operation in the direction specified by the deciding circuit 12b and at a speed proportional to the integral value calculated by the integrating circuit 12a. |
