DEVELOPMENT OF AN ULTRA-SAFE, ULTRA-LOW-EMISSION NATURAL GAS-FUELED SCHOOL BUS: PHASE 2, PROTOTYPE HARDWARE DEVELOPMENT
This report summarizes work done on a prototype school bus designed and constructed to incorporate many new technologies to increase the safety of the bus passengers as well as pedestrians boarding and leaving the bus. These technologies emphasized increased visibility between the bus driver and pedestrians or vehicles, and included the use of high intensity discharge lighting, pedestrian and vehicle detection systems, and remote-mounted cameras. Passenger safety was also stressed, with the application of seat belts and improved emergency exits and lighting. A natural gas-fueled engine was developed for powering the bus. The development process focused primarily on improvements to the lean operation of the engine and control system advancements. The control system development included investigations into alternative control algorithms for steady-state and transient operation, various fuel metering devices, as well as new methods for wastegate control, knock and misfire detection, and catalyst monitoring.
- Sponsored by Department of Energy, Washington, DC.
National Renewable Energy Laboratory1617 Cole Boulevard
Golden, CO United States 80401
- Publication Date: 1996-4
- Pagination: 48 p.
- TRT Terms: Alternate fuels; Passengers; Pedestrian safety; School buses; Transportation safety; Vehicle design; Vehicle detectors; Visibility
- Uncontrolled Terms: Passenger safety
- Subject Areas: Design; Highways; Passenger Transportation; Public Transportation; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;
- Accession Number: 00730645
- Record Type: Publication
- Report/Paper Numbers: NREL-TP-425-21081
- Files: TRIS
- Created Date: Feb 3 1997 12:00AM