Effect of automotive electrical system changes on fuel consumption using incremental efficiency methodology

摘要: There has been a continuous increase in automotive electric power usage. Future projections show no sign of it decreasing. Therefore, the industry need to either improve current 12 Volt electrical system or move higher voltage vehicle system. Both these choices are likely cost Performance improvements will be needed justify increased Original Equipment Manufacturer. This thesis is investigating potential for fuel economy and their associated economic advantages different systems. The objective determine effects on consumption under variety drive load cycle circumstances. Incremental, marginal, efficiencies used relationship between loads consumptions. ADVISOR, model developed by National Renewable Energy Lab, adapted use this application. included implementation standard engine performance map alternator efficiency data ADVISOR model. Thesis Supervisor: Richard Roth Supervisor Title: Director, Materials Systems Laboratory Thomas A. Keim Principal Research Engineer LEES Associate Director Gary DesGroseilliers Automotive Consortium Program Manager Frank R. Field III Senior Engineer, Technology Policy