Feasibility of Automatic Steering Low Coal Shuttle Car. Final Report. Volume II.
NTIS: PB/265-179 Available for Reference At Bureau Libraries :130 pages
An automatic steering system for a coal shuttle car was tested in production coal mining situations. The system uses a pulsed laser optical ranging system to provide guidance information. Automatic steering control keeps the car centered in an entry with automatic turns being made at intersections as signaled by the operator. The operator can override automatic steering at any time by using the steering wheel. All other controls remain manual. The feasibility of using the existing automatic steering system hardware on a low coal shuttle car with physical dimensions and control characteristics differing from those of the test car was demonstrated through analysis and simulation. Results are presented showing operation of the automatic steering system on a low coal shuttle car is feasible in 19-foot entries with some changes in the gain values in the control loop and with relocation of the lateral sensors. Acceptable operation in 18-foot entries is demonstrated with the addition of steering command delays for low-speed running and a change in sensor location in addition to the gain changes mentioned previously.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/265-179 Available for Reference At Bureau Libraries