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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 Fuels Lubr. Diesel Emissions Engines Fuel Efficiency' Earlier post.). Weigert, E.,
The Volvo Car Corporation is introducing a new, downsized engine range consisting solely of four-cylinder gasoline and diesel engines. It covers the range from high-power and -torque variants to fuel-efficient derivatives. The new powertrains are also up to 90 kg lighter than the present ones and fueleconomy is improved by up to 35%.
Especially with increased production volume of renewable fuels and optimized powertrain solutions for flexible fuel vehicles, there is a chance for combustion engines to not only remain in the market but also be sustainable for future vehicle. The intake manifold was modified for high pressure EGR feed and port fuel injection (PFI).
In testing, BorgWarner observed fuel consumption improvements of 2% at low speeds to 12% at high speeds with VEMB, according to Thomas. to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement in fueleconomy. improvement in fueleconomy on an E-class vehicle (e.g., Source: Borgwarner.
An analysis by FEV of a modeled automotive scale version of Pinnacle’s 4-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture engine ( earlier post ) concluded that the engine has the potential to deliver significant additional fueleconomy benefits of up to 42.6% Fueleconomy. —FEV analysis.
Changes in the attributes (clockwise from upper left, weight, power, fueleconomy and torque) of the Honda Accord over time as an example of fleet trends in the US. In contrast, fueleconomy actually increased by 15% during that period. Tags: Fuel Efficiency. Knittel, 2009. Click to enlarge. Knittel, Christopher R.
improvement in fueleconomy based on customer testing. As automakers began downsizing engines to improve fueleconomy, BorgWarner recognized opportunities to help further improve engine efficiency by reducing power-wasting friction in the engine timing system.
variant but with fueleconomy of a strong hybrid. HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. Downsizing the 2.0-liter Click to enlarge.
The US Environmental Protection Agency (EPA) and the US Department of Transportation (DOT) formally unveiled their joint proposal to set stronger fueleconomy and greenhouse gas pollution standards for Model Year 2017-2025 passenger cars and light trucks. L/100km), if the vehicles were to meet this CO 2 level all through fueleconomy.
Two-thirds of owners surveyed said they expect their next vehicle to get better fuel mileage than the one they’re driving now, and fueleconomy topped the list as the most important consideration when shopping for their next car, followed by quality and safety.
The team sees further potential for fueleconomy improvement with engine downsizing. Estimated drive-cycle fueleconomy and emissions—based on the single-cylinder 0.66L research engine efficiency and emissions maps—was 32.4 H2-DI showed a combined cycle fueleconomy improvement to 45.4
Ricardo will assist Lifan Automobile Group based in Chongqing, China, with the development of a family of highly downsized gasoline engines capable of meeting future Chinese and international fueleconomy and emissions regulations.
Volkswagen expects the new engine to offer significant highway fuel mileage gains over the 2.5-liter Volkswagen predicts fuel highway fueleconomy will improve by up to 17% with the downsized engine. Engines Fuel Efficiency' liter unit. The Beetle and Beetle Convertible 2.5-liter s hydraulic setup.
A study by engineers from Mahle Powertrain Ltd and BP found strong synergy between spark ignition (SI) engine downsizing and fuel containing low-to-moderate amounts of alcohol, including ethanol and butanol. The researchers found that the combination of technologies allowed improvements in fueleconomy over the engine drive cycle.
Light duty vehicle fleet by type and average fuel efficiency. Growth is led by developing regions such as China, India, Africa and other emerging economies. Growth is led by developing regions such as China, India, Africa and other emerging economies. By 2040, heavy duty fuel demand will be up about 60 percent versus 2010.
Utilizing technologies such as turbocharging, direct injection, twin independent variable camshaft timing (Ti-VCT) and six-speed transmissions, the upgraded powertrain portfolio will deliver more than 20% in fueleconomy improvement to Ford’s passenger vehicle fleet in China by 2015 while reducing tailpipe carbon dioxide emissions by 20%.
Volvo Car Corporation will rely on a powertrain strategy based on its new downsized 4-cylinder VEA (Volvo Environmental Architecture) engine platform ( earlier post ) and hybrids for the US market, said John Maloney, recently appointed President of Volvo Cars, US, in an interview at the Detroit Auto Show. Click to enlarge.
The Advanced Elastoval II piston enters series production later this year in a new European passenger car, where it contributes to gains in fueleconomy and reductions in CO 2. Specific power outputs in engines are likely to increase from current levels of around 95 kW/L to 130 kW/L to coming years. generation pistons.
A paper on their work is published in the ACS journal Energy & Fuels. 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. —Sall et al.
Results of this study showed that the pre-chamber jet ignition combustion system roughly matches HCCI fueleconomy across both NEDC and FTP drive cycles, with a 13% improvement in fueleconomy recorded over the baseline stoichiometric (λ=1) spark ignition combustion system. Click to enlarge.
The four-door fastback is powered by a hybrid electric powertrain that is expected to deliver 550 hp (410 kW) with fuel consumption of 5.5 The powertrain incorporates a new aluminum-based downsized twin-turbocharged 3.0-liter L/100 km (42.8 mpg US) and CO 2 emissions of about 129 g/km.
liter model but with significantly reduced real-world and drive cycle CO 2 emissions, and comparable improvements in fuel-economy. In implementing this 50% downsizing by swept volume, the research team delivered zero degradation in driveability, performance or acceleration. Earlier post.). three-cylinder EcoBoost engine.
Ford’s approach to the project was to engineer a comprehensive suite of gasoline engine systems technologies, including: Aggressive engine downsizing in a mid-sized sedan from a large V-6 to a small I-4. Cycle-based CAE analysis of fueleconomy contribution of critical technologies. Emissions Engines Fuel Efficiency'
Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fueleconomy compared to operating an engine with fixed compression ratio.
Hyundai Motor America has introduced its next-generation hydrogen fuel cell vehicle, the Tucson ix Fuel Cell Electric Vehicle (FCEV). The Tucson ix FCEV made its US public debut at Fuel Cell & Hydrogen Energy 2011 in Washington, DC. It achieves gasoline equivalent fuel efficiency of more than 70 mpg US (3.36 fueleconomy.
Researchers from Southwest Research Institute (SwRI) and Eaton have demonstrated the application of downspeeding and supercharging a diesel vehicle, in conjunction with optimizing transmission gear ratios and the shift schedule, to deliver a greater improvement in fueleconomy than a downsped and turbocharged configuration.
At a “Go Further with Ford” event in Amsterdam, Ford Motor Company detailed plans for an aggressive product acceleration in Europe, targeting opportunities for growth in the large car, SUV and commercial vehicle segments while emphasizing fueleconomy and enabling technologies such as the EcoBoost engines. New Fiesta.
This marks Toyota’s first downsizing of its HSD technology. This engineering solution targets the independent powering of the air-conditioning unit for improved full hybrid powertrain fueleconomy. Solar panels have been applied to the entire roof surface of the Yaris HSD concept.
Researchers at Tianjin University in China report that combing split injection to the Miller cycle with boost pressure can effectively decrease the knock tendency and increase the engine torque in a downsized spark-ignition engine. Their paper is published in the journal Fuel. 2017.11.006.
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. Δ in fuel consumption. η BASIC.
The A dvanced C ombustion C oncepts— E nabling S ystems and S olutions (ACCESS) is developing advanced combustion control concepts along with with an enabling system, subsystem and component level solutions for the management of multi-mode/multi-fuel combustion events. HCCI range extension with boosting. Source: Bosch. Click to enlarge.
The 2012 APEAL Study finds that 27% of new-vehicle buyers who replaced a vehicle downsized—i.e., The downsizing trend also has an impact on owner satisfaction with the fueleconomy of their new vehicle. purchased a new vehicle in a smaller segment than the vehicle they replaced. Power and Associates.
liter gasoline-fueled TSI of the Polo BlueGT. The TSI develops a power output of 103 kW / 138 hp, with a combined fuel consumption of 4.7 If the Polo BlueGT is ordered with the optional 7-speed dual clutch gearbox (DSG), fuel consumption drops further to 4.5 The system was realized with the new 1.4-liter
The project aims to deliver full hybrid equivalent fueleconomy and performance with less than 70 g/km CO 2 emissions as measured over the European Drive Cycle, but at a significantly lower cost. version of its vehicle (a 2009 Ford Focus) but with fueleconomy and CO 2 emissions approaching those of a Prius.
A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. The stoichiometric air-fuel ratio of ethanol is 9.0, Earlier post.)
Improving battery power to such as level would further enable hybridization to near-HEV levels as well as engine downsizing, thereby enabling fueleconomy improvements beyond the current 10-15% MHEV limit. Finally, partial hybridization using the 48V powertrain may be integrated to improve fueleconomy.
Highly efficient at low engine revolutions, electric superchargers make it possible to downsize engines. When coupled with an energy recovery system, electric superchargers can be used to create a cost-competitive hybrid solution that can deliver fuel savings of up to 20% in the standard European driving cycle, Valeo said.
Based on the results of the study, CAR believes the economic risk to the auto industry connected to mandating permanent fueleconomy standards in the long run is “ very serious ” The group recommends periodic review to assess the rate of technology development and cost reduction of advanced technologies leading up to 2025.
Compression ratio was set at 15:1, and the fuel used was 87 octane gasoline. air-fuel equivalence ratio, lambda) are fixed, and spark timing is adjusted until either maximum brake torque (MBT) is reached or incipient knock criteria are met. There is no ISFC improvement at high load.
reduction in fuel consumption achieved with XL Hybrids’ aftermarket hybrid electric powertrain ( earlier post ) on a light-duty cargo van on the UDDS cycle (urban conditions). The testing process compares fueleconomy performance from the vehicle in its original condition with the performance using XL Hybrids’ charge-sustaining hybrid system.
In part-load operation, the indirect injection supplements direct gasoline injection to improve fueleconomy and to reduce the output of particulates from the engine. GDI technology provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Earlier post.).
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. Source: NRC. Click to enlarge.
In a new report ( Transportation Forecast: Global Fuel Consumption ), Navigant Research forecasts total road transportation energy consumption will grow from 81.1 Approximately 84% of that will be provided by conventional fuels. Annual road transportation sector energy consumption by fuel type, world markets: 2015-2035.
Anhui Jianghuai Automobile Group Co Ltd (JAC) and Ricardo are collaborating on a project to develop the Ricardo HyBoost concept ( earlier post )—a combination of low-cost technologies to deliver improved performance and fueleconomy which featured recently in the Ricardo Centenary celebrations —into volume production on a JAC vehicle.
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