CONTROLLING METHOD FOR SPEED OF SELF-PROPELLED TRUCK

摘要

PURPOSE:To simultaneously travel all self-propelled trucks on the same traveling route at an arbitrary set speed by supplying a speed command signal to a signal line provided along a truck traveling route. CONSTITUTION:When a self-propelled truck 1 passes a starting point of a truck travel control zone or a predetermined position before the starting point, a truck distance command signal receiving means 14 receives tuck distance command signal from a oscillating means 15. When the truck 1 enters into the truck traveling control zone a current collector 11 receives a speed command signal supplied to a signal line 10. A truck distance present value is detected by an optical distance sensor 12 of the truck 1, and the sensor 12 outputs a speed correction value corresponding to a deviation from the truck distance set value. The speed correction value is added to or subtracted from the speed command value, and a speed set value is output.