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Review of the Research Program of the Partnership for a New Generation of Vehicles Third Report (1997) / Chapter Skim
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3: SYSTEMS AND ANALYSIS
Pages 44-49

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From page 44...
... the ability to run the selected power plant in a restricted, more efficient load and speed range. Conversely, the disadvantage of the hybrid vehicle is that it is a much more complex and costly system than a conventional vehicle with an internal combustion engine.
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From page 45...
... This requires developing analytic methods and tools for comprehensive analysis of the identified new vehicle technologies and performing trade-off studies to select the final preferred vehicle configuration. The systems analysis team, along with the vehicle engineering team, identified nine vehicle configurations for benchmarking (see Table 3-1~.
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From page 46...
... The current modeling status varies, from highly accurate models for technologies like internal combustion engines that are well known to the automotive industry, to very generic, simplistic models for technologies that are not well developed, such as fuel cells. Some subsystems being evaluated clearly will not be ready for inclusion in the concept vehicle architecture.
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From page 47...
... Achieving the original planned milestone of completing the trade-off studies by the end of 1997 to allow selection of the preferred vehicle concept appears to be a major challenge. The loss of effectively more than a year in starting the system analysis effort has resulted in very late development of the required vehicle, subsystem, and component models; thus providing little timely support or guidance to the technical teams.
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From page 48...
... The managers of the PNGV should conduct a program review with the leadership of the vehicle engineering team and the systems analysis team to assess the capability of the existing projects to meet program needs for the technology downselect process. A corrective action plan should be formulated and implemented as a matter of some urgency.
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From page 49...
... Presented to the Standing Committee to Review the Research Program of the PNGV at the Dearborn Inn, Michigan, September 10, 1996.
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Key Terms

  • analysis team
  • vehicle engineering
  • engineering team
  • technology downselect
  • downselect process

  • vehicle performance
  • vehicle configurations
  • overall vehicle
  • pngv technical
  • analysis effort

  • internal combustion
  • technical roadmap
  • overall program
  • pngv program
  • hybrid vehicle

  • technology teams
  • preferred vehicle
  • performance requirements
  • fuel economy
  • allow selection

  • program timing
  • analysis driving
  • process scheduled
  • expected results
  • work planned

  • detailed work
  • component developments
  • braking energy
  • vehicle models
  • analysis provides


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