DRIVE TECHNOLOGY AND CONTROL FOR CLOSE-HEADWAY (CONVOY) VEHICLES

摘要

To improve the cost-benefit ratio of a transportation system through better utilisation of existing infrastructure, automatic control could be applied to reduce the headway between vehicles. As part of any programme to control headway, a realistic representation of the vehicle's longitudinal dynamics and drive system is required. The paper investigates the dynamic characteristics of two modern drive systems, brushless DC and switched reluctance, applied to a 1-tonne 6-passenger APM when used for close- or zero-headway operation of the vehicle in an automated convoy. The drives are modelled in detail and simulation results are presented and compared. To reduce computational time for a network with a large population of vehicles, system identification is proposed.