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  • 1
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    VEEP: A Vehicle Economy, Emissions, and Performance simulation program (1978)
    In:  CASI
    Details
    Publication Date: 2017-10-02
    Description: The purpose of the VEEP simulation program was to: (1) predict vehicle fuel economy and relative emissions over any specified driving cycle; (2) calculate various measures of vehicle performance (acceleration, passing manuevers, gradeability, top speed), and (3) give information on the various categories of energy dissipation (rolling friction, aerodynamics, accessories, inertial effects, component inefficiences, etc.). The vehicle is described based on detailed subsystem information and numerical parameters characterizing the components of a wide variety of self-propelled vehicles. Conventionally arranged heat engine powered automobiles were emphasized, but with consideration in the design toward the requirement of other types of vehicles.
    Keywords: MECHANICAL ENGINEERING
    Type: DOE Highway Vehicle Systems; p 28-31
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Automotive technology status and projections. Volume 1: Executive summary (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Fuel economy, exhaust emissions, multifuel capability, advanced materials and cost/manufacturability for both conventional and advanced alternative power systems were assessed. To insure valid comparisons of vehicles with alternative power systems, the concept of an Otto-Engine-Equivalent (OEE) vehicle was utilized. Each engine type was sized to provide equivalent vehicle performance. Sensitivity to different performance criteria was evaluated. Fuel economy projections are made for each engine type considering both the legislated emission standards and possible future emissions requirements.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA-CR-157593 , JPL-PUB-78-71-VOL-1
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Automotive technology status and projections. Volume 2: Assessment report (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Current and advanced conventional engines, advanced alternative engines, advanced power train components, and other energy conserving automobile modifications which could be implemented by the end of this century are examined. Topics covered include gas turbine engines, Stirling engines, advanced automatic transmissions, alternative fuels, and metal and ceramic technology. Critical problems are examined and areas for future research are indicated.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA-CR-157594 , JPL-PUB-78-71-VOL-2
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Weight propagation and equivalent horsepower for alternate-engined cars (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: In order to evaluate properly the consequences of replacing conventional Otto-cycle engines with alternate power systems, comparisons must be carried out at the vehicle level with functionally equivalent cars. This paper presents the development and application of a procedure for establishing equivalent vehicles. A systematic weight propagation methodology, based on detailed weight breakdowns and influence factors, yields the vehicle weight impacts due to changes in engine weight and power. Performance-matching criteria, utilizing a vehicle simulation program, are then employed to establish Otto-engine-equivalent vehicles, whose characteristics can form the basis for alternative engine evaluations.
    Keywords: MECHANICAL ENGINEERING
    Type: SAE PAPER 780348 , Congress and Exposition; Feb 27, 1978 - Mar 03, 1978; Detroit, MI
    Format: text
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    NASA TECHNICAL REPORTS
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