Showing 21 - 30 of 38
This report describes a procedure for detecting the geometry of the contact interface between vehicles. This technique uses a better approximation of the vehicle's shape and also preserves the advantage of the ellipsoidal model. This new model for the low relative velocity vehicular collision is...
Persistent link: https://www.econbiz.de/10010536966
The advance in research and development will make the deployment of automated vehicles a reality in the near future. The principal question is whether these technologies will lead to any benefits in terms of safety, capacity and traffic flow characteristics as they penetrate the current...
Persistent link: https://www.econbiz.de/10010536994
In Automated Highway Systems (AHS), vehicles are equipped with automatic control systems to govern the accelerating, steering and braking functions in order to maintain an appropriate speed and spacing with respect to the surrounding vehicles. One concept of AHS suggests the implementation of...
Persistent link: https://www.econbiz.de/10010537059
This report focuses on dynamic modeling and lateral control of commercial heavy-duty vehicles for highway automation. Two types of dynamic models are developed in the study of lateral control of tractor-semitrailer vehicles in an Automated Highway System (AHS): a complex simulation model and two...
Persistent link: https://www.econbiz.de/10010537224
This report describes progress in the application of computer vision techniques to the lateral and longitudinal control of an autonomous highway vehicle. A vehicle's lateral dynamics and the design of an appropriate controller for lateral control are investigated. Stereo vision, in conjunction...
Persistent link: https://www.econbiz.de/10010537256
This report presents the findings of a feasibility study which developed a simulation testbed for the Santa Monica freeway corridor. The study involved performing an evaluation of the state-of-the-art models for Advanced Traffic Management and Traffic Information Systems (ATMIS) on freeway...
Persistent link: https://www.econbiz.de/10010537281
In this paper, the authors propose an algorithm that increases and decreases the transmission speed according to a user-specified function. The design objective is to regulate baud as efficiently as possible and ensure that in each transmission interval, transmitter and receiver bauds are equal...
Persistent link: https://www.econbiz.de/10010843108
We investigate the effect of a number of design alternatives on the safety and capacity of an Automated Highway System. Our methodology makes use of two computational tools, designed to highlight the fundamental limitations of the vehicle dynamics, sensing and control strategies and...
Persistent link: https://www.econbiz.de/10010843112
This work focuses on vehicle fault detection and identification. It also describes a vehicle health management approach based on analytic redundancy. It describes a point design of fault detection filters and parity equations that are developed for the vehicle longitudinal mode. A preliminary...
Persistent link: https://www.econbiz.de/10010843121
This report describes research in the area of fault detection and handling designs used in the longitudinal control system of platooned automated vehicles. Results are presented on experimental testing of the designs. The authors also describe a consistent interface between the fault detection...
Persistent link: https://www.econbiz.de/10010843123