Showing 1 - 10 of 11
This research project is concerned with sensor validation and sensor fusion as part of a five module hierarchical architecture for supervisory control. The goal is to enhance reliability and safety of the Intelligent Vehicle Highway System (IVHS) by taking into consideration the uncertainty of...
Persistent link: https://www.econbiz.de/10010536811
This study reports on a preliminary design of a health monitoring system for automated vehicles. A new detailed nonlinear vehicle simulation which extends the current simulation is documented and will be used as a future testbed for evaluating the performance of the health monitoring system. A...
Persistent link: https://www.econbiz.de/10010536825
This dissertation presents a hierarchical, hybrid point of view to the control of large-scale systems. The analysis is based on a new hybrid dynamical system formulation that allows for the modelling of large scale systems in a modular fashion. Three problems are addressed: controller design,...
Persistent link: https://www.econbiz.de/10010537044
This report presents an evaluation of the Phase II Smart Card Demonstration Project, the goal of which is to develop a transit fare payment system for commercialization that will improve transit efficiency and effectiveness. The major focus of the project is the testing of selected technologies...
Persistent link: https://www.econbiz.de/10010537104
In this report, a preliminary design of a health monitoring system for automated vehicles is developed and results of tests in a high-fidelity nonlinear simulation are reported. Two car models are described: low- dimensional linear models for fault detection filter design and high fidelity...
Persistent link: https://www.econbiz.de/10010537170
In this dissertation, the problem of fault tolerant control of automobiles is addressed. The three main problems handled in the dissertation are tire burst, sensor fault detection and slip angle control. The tire burst and sensor faults are important failure modes for automated highways, whereas...
Persistent link: https://www.econbiz.de/10010537216
The aim of this report is to study issues concerning fault detection and identification in vehicle follower control. The report discusses various potential fault modes among sensors, and actuators used in the vehicle following experiments in cars. It deals with issues of fault detection of...
Persistent link: https://www.econbiz.de/10010537241
This study reports on a method to accomplish sensor validation and fusion in Intelligent Transportation Systems (ITS). The method is based on probabilistic and fuzzy techniques that express a confidence in the sensor data and take into account environmental factors and the state of the system....
Persistent link: https://www.econbiz.de/10010537252
Vehicles in an IVHS system rely heavily on information obtained from sensors. So far, most control systems make the implicit assumption that sensor information is always correct. However, in reality, sensor information is always corrupted to some degree by noise which varies with operating...
Persistent link: https://www.econbiz.de/10010843102
In this study, the authors propose a hierarchical control architecture for dealing with faults and adverse environmental conditions on an Automated Highway System (AHS). The faults are classified according to the capabilities remaining on the vehicle or roadside after the fault has occurred....
Persistent link: https://www.econbiz.de/10010817644