AN INVESTIGATION OF THE EFFECTS OF THE TIME LAG DUE TO LONG TRANSMISSION DISTANCE UPON REMOTE CONTROL. PHASE II. VEHICLE EXPERIMENTS. PHASE III. CONCLUSIONS
STANFORD UNIV CA DEPT OF AERONAUTICS AND ASTRONAUTICS
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A series of pursuit tracking tests is performed with transport lags ranging from 0 to 6 seconds between the control and the controlled quantity. Target speeds are tracked with both velocity and acceleration controls. Two types of tracking are performed to bracket the actual vehicle situation. In the first the operator attempts to follow the target with his controlled quantity in real time, using the delayed position and rates as feedback. In the second he attempts to follow the target with the delayed controlled quantity. Tests are performed substituting simple electronic models for the human to gain an understanding of human response with time delays in the control loop. A series of tests with an actual vehicle are performed with the intent of relating the tracking tests to the actual situation of interest. Time delays of from 0 to 3 seconds are included in the control loop. Performance is scored at various speeds over both continuous and obstacle courses. Both two- and four-wheel steering were investigated.
- Numerical Mathematics
- Test Facilities, Equipment and Methods