Abstract

The Effect of Bio-Fuel Induced Bsfc Curve Perturbations on Realizable ICE Efficiency Using Cycling

Highlights

  • The choice of engine operating points is of great importance for the design of fuel efficient hybrid drive systems [1,2,3,4,5,6,7,8,9]

  • The highest efficiency gains obtainable from cycling between two operating points are most often generated if one operating point is the global bsfc minimum and the other is close to zero power [1]

  • Previous work has addressed the problem of achievable efficiency gains through cycling for bio-fuels [11], albeit under the assumption of exactly known bsfc dependencies for both, regular Diesel and Bio-Diesel

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Summary

Introduction

The choice of engine operating points is of great importance for the design of fuel efficient hybrid drive systems [1,2,3,4,5,6,7,8,9]. In order to make a compelling case for the use of hybrid power train technology in large heavy duty vehicles, one needs to show the efficiency advantages over conventional drive systems. While this has been done for a number of scenarios in previous work [1,10], the assumption in previous work was always the exact knowledge of the bsfc field. Conditions under which the efficiency advantages of cycling for regular Diesel carry over to the case of Bio-Diesel were formulated

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