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Precursor Systems Analyses of Automated Highway Systems Resource Materials Lateral and Longitudinal Control Analysis
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1995-11-01
[PDF-2.12 MB]
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Abstract:The main emphasis of the Lateral and Longitudinal Control analysis was directed toward (1) a detailed review and study of the various technologies that may be utilized to provide sensors for lateral position measurement and longitudinal headway, and (2) a rather detailed digital simulation of a longitudinal control loop including the vehicle, engine, braking system, and control algorithms. To a lesser degree, consideration was given to communications associated with lateral and longitudinal control, obstacle detection, and a preliminary study of the cost trades between a system that employs an autonomous vehicle follower longitudinal control and a point-follower system using an infrastructure base headway measurement system. Automatic lateral and longitudinal control is, of course, the heart of any AHS system. The studies conducted on this program barely scratch the surface of the automatic control problem. We do hope, however, that we have focused our efforts at some of the key design issues.
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