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At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fueleconomy (CAFE) target of 26 mpg (9.05 Earlier post.). l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4
Blending 25-50% of this low-temperature ethanol reformate with ethanol or E85 fuels enables dilute engine operation, resulting in substantial improvements in fueleconomy and emissions. E85 and hydrous ethanol motor fuels are now widely available in the U.S. —Sall et al.
The analysis used the Ohio State University EcoCAR, a student prototype PHEV, as the basis for the preliminary fueleconomy evaluation. This evolution has led to the point where achieving significant fuel savings through the introduction of new technologies has become difficult. of the fuel energy on the NEDC cycle.
The testing process compares fueleconomy performance from the vehicle in its original condition with the performance using XL Hybrids’ charge-sustaining hybrid system. XLH engineers have already designed the next-generation release, in which the battery pack is downsized to 1.5 The company had been targeting a 20% reduction.
Conversely, short bursts of power can also be absorbed by the SpeedStart generator to recharge the battery during vehicle decelerations. Small displacement engines offer excellent CO 2 and fueleconomy benefits; they have lower parasitic losses and operate more efficiently under part load conditions.
A multi-cylinder version is practical for a wide variety of vehicles and offers greatest benefit to C and D class passenger cars which can take advantage of the low cost architecture and significantly improved fueleconomy and emissions.
According to its estimates, adopting the full combination of improved technologies in medium and large cars and pickup trucks with spark-ignition engines could reduce fuel consumption by 29% at an additional cost of $2,200 to the consumer. Turbocharging and downsizing can also yield fuel consumption reductions.
An automotive TEG is intended to improve fueleconomy by power from waste heat to reduce the electric generator load on the engine. GMZ is targeting a fueleconomy improvement of 5%. down-speeding, downsized engine, etc.), Fuel Efficiency Thermoelectrics Vehicle Systems' W/cm 2 to 6.0 Click to enlarge.
The ICCT team—John German and Aaron Isenstadt—concluded that diesels have and will retain two significant advantages over gasoline engines: significantly better fueleconomy and cargo hauling and towing ability. Meeting the 2025 standard will require an average improvement in fueleconomy of about 4.1%
The found that using a GPF did not show any fueleconomy and CO 2 emission penalties, while the emissions of total hydrocarbons (THC), carbon monoxide (CO), and nitrogen oxides (NOx) were generally reduced. liter downsized turbocharged centrally-mounted direct injection engine. Yang et al. Click to enlarge.
Manufacturers continue to optimize diesel emission controls, such as DOC, DPF and SCR, in order to promote uniform catalyst coating, improve NO x conversion efficiency, reduce back pressure on the engine, and reduce thermal mass. Better catalysts and urea dosing systems can achieve high NOx conversion during lower temperature operation.
On 15 Sep, NHTSA and the US EPA proposed a joint rulemaking on fueleconomy and greenhouse gas emissions for light duty vehicles: an average new car 34.1 mpg if the automotive industry were to meet this CO 2 level just through fueleconomy improvements.) ( Earlier post.). mpg and 250 g CO 2 /km for model year 2016.
This downsizing enables lower fuel consumption, accompanied by low emissions and optimum weight. The 4-cylinder Sprinter features a 7-speed automatic transmission with torque converter—the only 7-speed automatic transmission to feature in a van—is refined for maximum fueleconomy.
The sport has therefore turned the rules on their head with a formula where the performance is restricted by two fuel mechanisms: a maximum fuel flow rate of 100 kg/hr and a maximum race fuel allowance of 100 kg. Conversion efficiency is now the key. The F1 W05. Click to enlarge.
The resulting higher BMEP levels allow downsizing of the engine at equivalent vehicle performance. The vehicle owner will realize high fueleconomy because gasoline, with its greater eating value per volume, is the fuel that is primarily used for most driving modes. Earlier post.)
Conversion to wider gear ranges. Shift responsiveness has improved through downsizing of the pulley and reduction of inertia by 40%. Adopting a laser clad valve seat for the intake valve seat to make the intake port compatible with strong tumble flow (fuel consumption performance) and intake flow rate (output performance).
Ford’s turbocharged, gasoline direct injection EcoBoost engines are targeted to play a significant near-term role in Ford’s efforts to reduce fuel consumption by enabling downsizing. V6 engine (the Duratec D35 EcoBoost) delivers up to 12% better fueleconomy and 15% lower emissions with comparable torque and power as a 5.4L
converted all vehicle efficiency measurements into vehicle energy efficiency (VEE, km/MJ) based on fuel energy densities reported in each study. This is because the ethanol component may affect the conversion efficiency of the gasoline component in a blend, that is, make an engine more or less efficient in its use of the gasoline component.
Despite its efficiency, the Golf TSI BlueMotion with the 85 kW / 114 hp downsized 999 cc EA211-series engine reaches 100 km/h in 9.7 This offers benefits in terms of internal engine friction, which in turn have a positive effect on fueleconomy. seconds and goes on to a top speed of 204 km/h (127 mph). l/100 km.
In an informational webinar in September, John Farrell, Laboratory Program Manager—Vehicle Technologies, National Renewable Energy Laboratory, and part of the Co-Optima leadership team observed that: Put most simply, the Co-Optima goal is to introduce better fuels and better vehicles sooner. —Robert Wagner.
Has shown some concept fuel-cell PHEVs. Several after-market companies have done PHEV conversions of the Ford Escape hybrid and one has done a retrofit of the F-150 pickup -- see Where PHEVs Are and ICE-Conversions.) First Escape PHEV delivered to SCE Nov 2007; 20 in 2008-2009. We hope Ford will, and then move ahead!
Thanks to this rightsizing approach, the new engine enjoys the consumption benefits of a downsizing engine in partial load operation, while at higher loads it has the advantages of a large-displacement engine. The result is optimal efficiency and performance characteristics across the entire engine speed range. Stroppiana, A.,
Frank has spent more than 30 years in breakthrough vehicle development, during which he received two world records for vehicle fueleconomy, designed nine generations of PHEVs, and was a four-time winner of US DOE Advanced Vehicle Design competitions. Smaller and lighter, it requires less liquid fuel.
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