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.

  • Supplemental Notes:
    • Sponsored by Department of Energy, Washington, DC.
  • Corporate Authors:

    National Renewable Energy Laboratory

    1617 Cole Boulevard
    Golden, CO  United States  80401
  • Publication Date: 1996-4

Language

  • English

Media Info

  • Pagination: 48 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00730645
  • Record Type: Publication
  • Report/Paper Numbers: NREL-TP-425-21081
  • Files: TRIS
  • Created Date: Feb 3 1997 12:00AM