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Diesel Engine Fuel Economy Improvement Challenges and ...

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Overall Vehicle <strong>Fuel</strong> Efficiency Opportunities<br />

Heavy Duty Class 8 Long Haul Truck FE Study<br />

Road Speed<br />

Load Management<br />

Drive Management<br />

longer trailer<br />

Advanced Truck-Cab<br />

Integrated Truck-Cab<br />

Speed <strong>and</strong> Load Management<br />

Vehicle<br />

Aerodynamics<br />

Bottoming Cycle<br />

Elec. Turbocompounding<br />

ParallelHybrid<br />

Combustion<br />

Mech Turbocompounding<br />

VVA<br />

Baseline<br />

Base <strong>Engine</strong><br />

Powertrain<br />

Integration<br />

<strong>Engine</strong><br />

Power<br />

Management<br />

0 5 10 15 20 25<br />

9<br />

*** Data from multiple source, NESCCAF, ICCT, Calstart<br />

% <strong>Fuel</strong> Efficiency <strong>Improvement</strong>s

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