Vehicle-Follower Longitudinal Control for Automated Transit Vehicles
| Autor: | William L. Garrard, R. J. Caudill |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Engineering
Mathematical model business.industry Mechanical Engineering Control engineering Propulsion Computer Science Applications Nonlinear system Transmission (telecommunications) Control and Systems Engineering Control theory Control system Linear induction motor business Instrumentation Transit (satellite) Information Systems |
| Zdroj: | Journal of Dynamic Systems, Measurement, and Control. 99:241-248 |
| ISSN: | 1528-9028 0022-0434 |
| DOI: | 10.1115/1.3427114 |
| Popis: | In this paper basic considerations in longitudinal control for small automated transit vehicles operating at moderate speeds and short headways are examined. The objective of this paper is the evaluation of control system designs applicable to vehicles using a linear induction motor (LIM) for propulsion and braking. Evaluation is based on dynamic response during nominal and emergency operations, sensing and communication requirements, and simplicity of controller design. The study is restricted to the vehicle-follower control concept. Basic control philosophies and spacing policies and their implications are discussed. Mathematical models of the vehicle and LIM are developed. Since the LIM is a highly nonlinear device, linear design procedures can be used to develop qualitative controller designs but computer simulations are necessary to establish numerical values for control system gains. The dynamic response of velocity and spacing controllers during various modes of operation are examined and controllers are designed for a variety of data sensing and transmission requirements. |
| Databáze: | OpenAIRE |
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