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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.
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.
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.
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.
Comparison of ISFC (@42.9 Compression ratio was set at 15:1, and the fuel used was 87 octane gasoline. For a comparison engine, Pinnacle used a 200 cc, conventional two-valve, air-cooled, carbureted model. MJ/kg) (4000 RPM) between 250cc Pinnacle and 200cc poppet valve engine. Source: Pinnacle. Click to enlarge.
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.
The company’s engineers have a prototype system running in a B-segment donor vehicle on a dynamometer and are calibrating the control strategy to prove its driveability, performance, CO 2 and fueleconomy benefits. Both solutions involve part load losses which compromise some of the fuel consumption savings made by downsizing.
It achieves gasoline equivalent fuel efficiency of more than 70 mpg US (3.36 In addition to improving the fueleconomy and range of the powertrain, Hyundai has also created a more compact power source for the Tucson ix FCEV. Comparison of new Tucson ix FCEV (3rd generation) and Tucson FCEV (2nd generation. fueleconomy.
A new white paper published by the International Council on Clean Transportation (ICCT), in collaboration with Eaton, Ricardo, JCI, BorgWarner, Honeywell, and the ITB Group, analyzes current turbocharged, downsized gasoline engine technology developments and trends.
Comparison of fuel consumption of Omnivore, homogeneous Gasoline Direct Injection (GDI) and Spray-Guided GDI engines. The first testing phase of Lotus Engineering’s Omnivore variable compression ratio, flex-fuel direct injection two-stroke engine ( earlier post ) has been successfully completed on gasoline. Click to enlarge.
Fuel mass flow comparison shows Pinnacle engine ahead at just about all points in the map. FEV performed engine mappings in a dynamometer test cell to evaluate the fueleconomy of Pinnacle’s TP90 scooter engine compared to a benchmark engine (N15) from Pinnacle’s Asian OEM partner. Click to enlarge.
Current fueleconomy policy clearly demonstrates this fact. —“The Case for Technology Neutral Public Policy in FuelEconomy Debate”. The quickest and most cost-effective way to achieve our energy usage goals is through faster adoption of fuel-efficient downsized gasoline and diesel engines.
Based on test work already carried out, Ricardo estimates that a fueleconomy improvement of up to 30% is possible with no loss of power or performance, using a downsized EBDI engine in place of currently available gasoline powertrain technology. fueleconomy improvement. As points of comparison, the 6.0-liter
The committee’s estimates are based on a variety of factors including recent reports from regulatory agencies and other sources; component cost estimates from suppliers; discussions with experts; and comparisons of prices and fuel consumption of similar vehicles. Engines and Technologies.
Fiesta—available in four- and five-door bodystyles—will offer North American buyers a new choice of 15 class-exclusive technologies and projected highway fueleconomy of 40 mpg, besting the Honda Fit, Nissan Versa and Toyota Yaris and Corolla. Our fueleconomy leader is now a PowerShift automatic. The Ford Fiesta’s 1.6-liter
Gasoline direct-injection (GDI) engines have higher fueleconomy compared to the more widely used port fuel injection (PFI) engines. For our fleet, increases in the fueleconomy of 1.6% (0.5−2.4%; increase in fueleconomy between PFIs and GDIs. engine calibration (spark timing, valve timing, etc.),
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%
A comparison of the benefits of two different cylinder deactivation operating strategies for downsized 3-cylinder engines such as the 1.0L That may be, but Ford is exploring ways to further improve the fuel efficiency of the three-cylinder design, including the possible use of cylinder deactivation. Schamel et al.
Co-Optima estimations indicate that significant fueleconomy improvements are possible with improvements to RON, S, and HOV. The report highlights researchers’ answers to three vital questions: What fuels do engines want? compression ratio, extent of downsizing, etc.). Source: Co-Optima capstone report.
Comparison of Fuel Consumption, Fun to Drive and System Cost of the different powertrain concepts. Downsizing a gasoline engine (e.g., with the use of turbocharged GDI) and downspeeding can result in a significant increase in fuel efficiency, but with a negative impact on traction force reserve and driveability.
In the process of this development, Daihatsu overhauled all aspects of the engine, the transmission, and the body structure, to maximize energy efficiency and achieve almost a 40% increase in fuel efficiency comparison with the Mira 2WD/CVT without idle reduction functions. and the downsizing of the particles sprayed from the injector.
CO 2 emissions of the C 180 in comparison to its predecessor [t/car]. The C 180 with manual transmission shows a drop in fuel consumption in comparison to its predecessor from between 7.6 Regulated fuel pump and oil pump that adjust their output according to the required load. Source: Mercedes-Benz. Click to enlarge.
Major automotive suppliers see national fueleconomy standards as important for long-term planning and investment and don’t want to see them altered by US policymakers, according to a first-of-its-kind industry survey commissioned by CALSTART and conducted by Ricardo Energy & Environment.
General project targets were to deliver diesel-like or better fueleconomy using E10 gasoline (RON91), and to achieve low engine-out NO x and PM using low temperature combustion, the intention being to avoid the cost of aftertreatment for NO x and PM, in addition to meeting more stringent standards. —Sellnau et al.
Comparison of Emission Standards (g/mi). . Many improvements in fleet fueleconomy in Europe have been achieved through increased diesel market share, with the diesel market share in Europe now above 50%. We see dramatic downsizing and boosting [as] something that’s going to for gasoline engines especially. John Kirwan.
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.
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.)
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
3 B-Cycle gasoline engine is the first example of Volkswagen’s “Rightsizing” strategy—an engine development strategy that looks to for the optimal balance of displacement, output, torque and efficiency based on vehicle class and real-world operating conditions, rather than just seeking to downsize. Fueleconomy city/hwy/comb.
Honda’s current state-of-the-art vehicle is the Clarity Fuel Cell, currently available in Japan, and to be available in the US and Europe by the end of the year. The fuel cell powertrain was made as compact as a Honda 3.5L Cost, productivity, efficiency and fueleconomy now offer the highest focus for technology investment, he said.
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 Golf Comparisons. 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).
On the diesel side—now available solely as BlueTEC units with SCR aftertreatment technology) , the focus is on downsizing and the new version of the V6 CDI engine. The engines’s fueleconomy is supported by a package of BlueEFFICIENCY measures. Joachim Schmidt, Board Member of Mercedes-Benz Cars, Sales & Marketing.
Other dimensions of the Mark VIII were larger in all directions, a stark contrast to the extreme downsizing implemented on Mark VI, a measure pushed further by the tidy proportions of the Mark VII.& Worth a quick comparison, the equivalent Thunderbird weighed 3,536 pounds with a V6 engine or 3,725 with the V8.
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. Appendix B: Car of the Future: A Comparison of Alternative Vehicles.
Vehicle size, a key determinant of fueleconomy, has shown a reduction in OECD countries, while the non-OECD trend is toward bigger vehicles. The analysis, an update of an earlier work using data from 2010 and 2011, found that the global average for light-duty vehicle fueleconomy was 7.2 Source: GFEI. Click to enlarge.
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