METHOD FOR CONTROLLING AUTO DUMP OPERATION OF HAULING MACHINES

摘要

A method to control a dump body of a hauling machine having a hoist cylinder, a lift energy source, a first sensor, and a second sensor, is provided. The method includes prompt of enablement of an auto dump operation and detection a dump body angle by correlating one or more signals obtained from the first sensor and the second sensor. Upon determination that the dump body angle is zero degrees, hydraulic pressure is provided to the hoist cylinder to tilt the dump body. An angular displacement rate of the hoist cylinder is detected by determination of a change in the dump body angle, with respect to time. The hydraulic pressure to the hoist cylinder is controlled based on the angular displacement rate. The hydraulic pressure is controlled to halt the tilting of the hoist cylinder upon detection that the dump body angle is equal to a pre-determined dump body angle.

主权项

1. A method of controlling a dump body of a hauling machine having an engine, at least one hoist cylinder, a lift energy source, at least one controller, a first sensor, and a second sensor, the lift energy source connected to the at least one hoist cylinder which is attached to the dump body and is configured to incline the dump body for evacuation of a payload therein, the first sensor to deduce angle of machine relative to the horizontal, and the second sensor to deduce angle of the dump body relative to the horizontal, the method comprising:
prompting enablement of an auto dump operation; detecting a dump body angle of the dump body by correlating one or more signals obtained from the first sensor and the second sensor; providing hydraulic pressure to the at least one hoist cylinder for tilting the at least one hoist cylinder upon determination that the dump body angle is approximately zero degrees and initiating angular movement of the dump body; detecting an angular displacement rate of the at least one hoist cylinder by determining a change in the dump body angle, with respect to time; controlling the hydraulic pressure to the at least one hoist cylinder based on the angular displacement rate; detecting the dump body angle of the dump body by correlating data obtained from the first sensor and the second sensor; and controlling the hydraulic pressure to halt the tilting of the at least one hoist cylinder upon detection that the dump body angle is equal to a pre-determined dump body angle.