By National Research Council, Division on Engineering and Physical Sciences, Board on Energy and Environmental Systems, Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy
Quite a few combos of commercially to be had applied sciences may well significantly lessen gas intake in passenger automobiles, sport-utility autos, minivans, and different light-duty cars with no compromising automobile functionality or defense. evaluate of applied sciences for making improvements to mild accountability automobile gasoline economic system estimates the aptitude gas rate reductions and prices to shoppers of accessible know-how combos for 3 sorts of engines: spark-ignition gas, compression-ignition diesel, and hybrid. in keeping with its estimates, adopting the entire mix of better applied sciences in medium and massive automobiles and pickup vehicles with spark-ignition engines may perhaps decrease gas intake via 29 percentage at an extra price of $2,200 to the shopper. changing spark-ignition engines with diesel engines and parts may yield gas rate reductions of approximately 37 percentage at an extra fee of roughly $5,900 in step with car, and exchanging spark-ignition engines with hybrid engines and elements would scale back gasoline intake by way of forty three percentage at a rise of $6,000 in step with motor vehicle. The booklet specializes in gasoline consumption--the volume of gasoline ate up in a given using distance--because strength discounts are at once concerning the volume of gasoline used. against this, gasoline financial system measures how some distance a motor vehicle will go back and forth with a gallon of gasoline. simply because gasoline intake facts point out funds stored on gasoline purchases and savings in carbon dioxide emissions, the ebook unearths that car stickers may still offer shoppers with gasoline intake facts as well as gas economic system details.
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Extra resources for Assessment of Fuel Economy Technologies for Light-Duty Vehicles
The unfortunate consequence of the disparity between the official CAFE (and proposed greenhouse gas regulation) certification tests and how vehicles are driven in use is that manufacturers have a diminished incentive to design vehicles to deliver real-world improvements in fuel economy if such improvements are not captured by the official test. Some examples of vehicle design improvements that are not completely represented in the official CAFE test are more efficient air conditioning; cabin heat load reduction through heat-resistant glazing and heat-reflective paints; more efficient power steering; efficient engine and drive train operation at all speeds, accelerations, and road grades; and reduced drag to include the effect of wind.
Purchased components versus in-house manufacture. Costs can be estimated at different stages in the manufacturing process. Manufacturing cost estimates gen- Copyright © National Academy of Sciences. All rights reserved. Assessment of Fuel Economy Technologies for Light-Duty Vehicles 26 ASSESSMENT OF FUEL ECONOMY TECHNOLOGIES FOR LIGHT-DUTY VEHICLES erally do not include warranty, profit, transportation, and retailing costs, and may not include overhead or research and development. 3 These estimates include the supplier’s overhead, profit, and R&D costs, but not costs incurred by the OEM.
4, Sovran and Blaser (2006) covered the entire fleet in 2004. The “high” vehicle has a high rolling resistance, and high aerodynamic drag relative to its mass. This would be typical of a truck or an SUV. The “low” vehicle requires low tractive energy and would be typical for a future vehicle. These three vehicles cover the entire spectrum in vehicle design. 5 were calculated using these values. The low vehicle has a tractive energy requirement that is roughly two-thirds that of the high vehicle.
Assessment of Fuel Economy Technologies for Light-Duty Vehicles by National Research Council, Division on Engineering and Physical Sciences, Board on Energy and Environmental Systems, Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy