INTRODUCTION Overview - NPC

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chapter 10 HEAVY-DUTY ENGINES & VEHICLES 10-1As such, fuel economy tends to be a much larger concern for trucks than for passenger cars. In this sense, trucks are designed for application- specific uses to conduct a job as efficiently as pos-sible, with the lowest total cost of ownership. A single car is typically purchased for multiple needs, including commuting, hauling small loads, driving periodically on long trips, maneuvering through city streets, etc. Passenger cars are typically purchased based upon their interior passenger and cargo vol-ume. By contrast, trucks tend to be selected for a specific duty cycle, which tends to dominate their day-to-day activity. Truck applications are diverse, ranging from the well-known 18-wheeler Class 8 line-haul truck, to dump trucks, delivery trucks, construction vehicles, buses, and a long list of niche applications.

10-2 ADVANCING TECHNoLoGY foR AmERICA’S TRANSPoRTATIoN fUTURE Framework This chapter examines technologies that can lead to improved GHG emissions, energy security, and economics related to on-highway HD vehicles.

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