| Title | Fundamental Studies in the Longitudinal Control of Automated Ground Vehicles |
|---|---|
| Record ID | 57704 |
| Personal Name Creator |
Fenton, R. E.; Olson, K. W.; Mayhan, R. J.; Takasaki, G. M. |
| Corporate Creator | Ohio State University. Transportation Control Laboratory; United States. Federal Highway Administration |
| Corporate Contributor |
United States. Department of Transportation. Federal Highway Administration. Office of Research and Development; United States. Department of Transportation. Federal Highway Administration. Offices of Research and Development |
| Publisher | United States. Federal Highway Administration. Office of Research and Development |
| Publication Date | 19761200 |
| Language | English |
| Abstract | Four essential aspects of the longitudinal control of vehicles in an automated, individual-vehicle system are considered here: a) Sector-level control; b) Communications between each controlled vehicle and the sector computer; c) The development of techniques for obtaining extremely accurate estimates of a vehicle's state; and d) The control of each individual vehicle. The emphasis was on the design, development and testing of hardware subsystems essential for implementing these facets in the context of high-speed (to 93 ft/sec or 28 ra/s), small time-headway (1-2 sec) operation. The accomplishments over the second year of a two-year study include: a) The development and field evaluation of techniques for obtaining accurate estimates of vehicle position and instantaneous speed — ± .05 ft in 10 ft (± .015m in 3.05m) and ± 0.7 ft/sec (± 0.21 m/s), respectively for one of the three approaches evaluated; b) The development of validated models for both the propulsion and braking dynamics of a typical U.S. sedan; c) The design and field testing of a vehicle controller which provided good tracking and a comfortable ride; and d) The specification of both minimal and realistic requirements for sector- level communications. |
| Rosap ID | dot:37894 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/37894 |
| TRT Terms | Floating car data; Advanced vehicle control systems; Longitudinal control; Traffic congestion; Traffic data; Automated highway systems; Dual mode vehicles; Automated vehicle control for ground vehicles |
| General Subjects | Automated Ground Vehicles; Floating car data; Traffic data; Traffic congestion; Highways; Operations and traffic management; Automatic longitudinal control; Informational source; Sector communications; Sector computer |
| Geographical Coverage |
United States; Ohio |
| Contract Number | DOT-FH-11-8874 |
| Report Number | FHWA-RD-77-28, RF 4302, RF 4302 A1-1 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/57000/57700/57704/fundamentalstudi00fent_1.pdf |
| Format | |
| Database | NTL Digital Repository |