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Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. Source: ETH Zürich. Click to enlarge. Earlier post.). Earlier post.). Dönitz et al.
Unlike exhaust-driven turbochargers, electric superchargers are driven by an electric motor. Highly efficient at low engine revolutions, electric superchargers make it possible to downsize engines. With this move, Valeo becomes the first automotive supplier to offer its customers a range of electric superchargers.
The new MY2014 Mercedes-Benz Sprinter van for the US now features a 2.1L, 4-cylinder diesel with a t-speed automatic transmission as standard. The two overhead camshafts actuate 16 intake and exhaust valves. Charging takes place at all times via a two-stage exhaust-gas turbocharger system.
The Sentra model was simulated through a standardized Federal Test Procedure-75 (FTP-75) drive cycle for each SSC engine design. The most favorable results were obtained using a preliminary model of the turbocharged SSC engine with a downsized compression cylinder configured to operate in air-hybrid modes.
At the 2 nd International Conference Automotive 48 V Power Supply Systems , held last week in Düsseldorf, Germany, Controlled Power Technologies (CPT), a major sponsor of the event, together with leading car makers and Tier 1 suppliers, argued the need for an internationally agreed 48V electrical standard. Click to enlarge. The conference.
As reported in a paper in ACS journal Environmental Science & Technology , the results showed that GDI technology has the potential to meet the upcoming California LEV III and US EPA Tier 3 PM mass standard of 3 mg/mi (phasing in over MY2017?2021) Schematic diagram of test vehicle engine & exhaust system and PM sampling systems.
Continuing to emphasize a downsizing approach, Volkswagen presented two new engines at the at the 30 th Vienna Engine Symposium (7-8 May): the 1.2-liter The potential of internal combustion engines is far from exhausted. Downsizing is rigorously being developed in the volume segments with the 1.2 Click to enlarge. TSI and the 1.6
For the first time, AMG is also utilizing the advantages of gasoline direct injection with spray-guided combustion and piezo-electric injectors: thanks to its higher thermodynamic efficiency, this technology makes more efficient use of fuel and leads to lower exhaust emissions.
The unit features a six-hole GDI injector, pressured to a higher-than-average 200 bar, securing a clean combustion and improving fuel economy and emissions to fulfill Euro 6c emission standards, three years ahead of their introduction in 2017. As well as being lighter and smaller, it features greater efficiency and power. Based on a 1.7-liter
CO 2 reduction potential vs. OEM On-cost for turbocharged GDi and turbo-Diesel technologies to meet Euro 6 standards. The Delphi study assessed the technology of downsizing and turbocharging; GDI fueling and its synergies with turbocharging; and an analysis of downsized 3-cylinder versus 4-cylinder engines. Source: Kirwan et al.
Cobra could enable a 5–10% reduction in CO 2 emissions when implemented in conjunction with engine downsizing and down speeding strategies, and potentially more when used in conjunction with alternative fuels, according to CPT. Unlike a turbocharger, Cobra is not dependent on the exhaust gases flowing to do its work.
Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. Delphi 500+ bar GDi pump. This reduces emissions in regulated testing including RDE (Real Driving Emissions). —Walter Piock.
The cylinder case is made from an aluminum-silicon alloy using a low-pressure chill casting process that achieves a high standard of homogeneity, according to Audi. Audi’s principle of downsizing: “ Forced induction replaces displacement ” One twin-scroll turbocharger per cylinder bank compresses the fresh air.
Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter liter EcoBoost, the standard unit on MKC, generates 240 hp (179 kW) at 5,500 rpm and 270 lb-ft (366 N·m) of torque at 3,000 rpm, according to preliminary test data. Ford specifically engineered the 2.3-liter
This trend of increasing demand for higher octane gasoline is likely driven by changes in fuel requirements for light-duty vehicles (LDV) in response to increasing fuel economy standards, which will have widespread implications for future gasoline markets, according to EIA analysts.
The ICCT projects that a decline in diesel shares down to 15% in 2025 would not interfere with meeting EU CO 2 standards and would actually decrease costs of meeting CO 2 standards.17. On top of the higher energy density of diesel fuel, diesel engines historically possessed a number of efficiency advantages over gasoline engines.
Continental will present an innovative close-coupled annular catalytic converter that supports near-complete NO x conversion in downsized turbocharged gasoline engines at the 37 th Vienna Motor Symposium next week. On the US front, the LEV III SULEV 30 standards stipulate a 70% reduction in fleet-average nitrogen oxide emissions by 2025.
VTES is optimized to use the standard 12V vehicle architecture. When applied to a radically downsized 1.2-liter liter turbocharged engine, VTES delivers in excess of a 50% increase in torque at engine speeds below 3,000rpm, more than compensating for insufficient power from the exhaust turbine. Compared with a 1.6-liter
Automakers are turning to downsized turbocharged engines to satisfy more stringent global fuel economy and emission regulations and customer demand for better-performing vehicles. In addition to improving fuel efficiency, downsized turbocharged engines also reduce harmful exhaust emissions.
The Manufacturers of Emission Controls Association (MECA) released a report assessing market-ready technologies being commercialized by suppliers of emission control and efficiency components for heavy-duty diesel vehicles to meet lower intermediate standards for oxides of nitrogen (NO x ) by 2024 as a transition to final standards in 2027.
The new turbocharged gasoline engine achieves a superior level of engine performance with maximum power output of 155kW (211ps) while improving fuel economy with its downsized displacement. All grades of the next-generation Skyline turbo model achieve the 2015 fuel economy standard, qualifying for tax breaks. km/L (32 mpg US, 7.35
During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaust gas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. PSA has filed for two patents on its work. PSA concept D-EGR engine.
In a paper on the OBS presented at the SAE 2014 World Congress, the researchers suggested that potential applications include downsizing to increase fuel economy by ?10% The OBS system uses waste exhaust energy to effect the fuel separation and provides a simple and reliable means for managing the separated fuels.
The new Yaris Hybrid, which is equipped with a version of the downsized hybrid powertrain featured in the Prius c/Aqua ( earlier post ), is a major step in the company’s full hybrid European roll-out strategy. The downsized full hybrid system combines the new 1NZ-FXE 1.5-liter Fuel consumption is 3.5 meters has been maintained.
V-Charge integrates a supercharger with a mechanical variable speed drive to address a key barrier to engine downsizing by providing near instant response at any engine speed. Torotrak’s V-Charge technology combines a proven compressor with Torotrak’s compact variable drive Click to enlarge.
Among the changes in the new Juke are a new design at the front and rear with greater emphasis on both premium refinement and sporty design cues; a new downsized 1.2-liter Its lower weight, standard automatic Stop/Start feature and more fuel-efficient operation translates into cleaner and more economical performance. Click to enlarge.
MAHLE’s TJI can utilize the original PFI (homogeneous) or DI (homogeneous or stratified) fuel system supplying the main combustion chamber, and the majority of the fuel can be carried over from the standard OEM engine design. Continuously variable camshaft phasers for both the intake and exhaust enabled variable valve timing.
While policies worldwide are tightening emissions and fuel economy standards, the strictest standard of all is expected in Europe in 2020, Bohr said—average fleet CO 2 emissions of 95 grams per kilometer. This will be done with a broad range of efficiency-enhancing technologies, including the turbocharging of downsized engines.
General project targets were to deliver diesel-like or better fuel economy 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. DOE UFEV program targets. kWh and FSN 0.1,
To achieve the target fuel economy improvement over the baseline V6 configuration, the team used GTDI technology for downsizing in combination with part-load lean homogeneous charge compression ignition (HCCI) operation for further fuel economy gains. Earlier post.). The project team is replacing a 3.6L I4 Ecotec engine. Wheeler, J.,
Renault’s ongoing downsizing strategy is aimed at reducing the cubic capacity of its engines in order to bring down fuel consumption and CO 2 emissions, without detracting from performance. The downsizing process involved shortening the piston stroke by reducing the size of the crank pin and conrod assembly. Select Engines.
Emission standards (g/mi). 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. Split, parallel, cross-flow cooling with integrated exhaust manifold. Earlier post.). Tier 2 Bin 2.
The HECS engine incorporates novel and conventional technologies to achieve low CO 2 emissions and a 17% reduction in fuel consumption, while also meeting Euro 6 emission standards without aftertreatment. The second-generation HECS has been adapted to a downsized 1.6L
At 48 volts, a VTES electric supercharger will transform 7kW of battery power into a highly boosted charge of air for downsized gasoline and diesel engines. There will be no torque deficit or other tradeoffs from essential engine downsizing and higher gearing, which now dominates the development of internal combustion engines.
Elements of the multi-mode combustion system include: Spark-ignited (SI) combustion with high compression ratio and high boost assisted by cooled external exhaust gas recirculation (EGR). Two-stage boost—a small supercharger for HCCI, and a regular turbocharger for downsizing.
Heat required to bring the fuel to SC states is recovered from the exhaust gas of the engine. To attenuate that risk, the researchers use a diluent such as CO 2 , H 2 O or exhaust gas. George Anitescu from Syracuse presented the work in a poster at the DEER 2009 conference in Dearbon, Michigan. At SC conditions, however (T?450
Further standards such as LV-148 as defined by the Verband der Automobilindustrie (VDA) are providing further structure to the 48V nominal voltage approach, which allows high power energy recuperation without exceeding 60V. The exhaust gas can reach temperatures greater than 900 °C, whereas the turbine upper functional limit is 850 °C.
Turbocharging and downsizing can also yield fuel consumption reductions. Downsizing is an important strategy applicable in combination with technologies that increase engine torque, such as turbocharging or supercharging. Part of the gain from advanced-level CI diesel engines comes from downsizing.
Under California’s vehicle emissions ratings, PZEVs (Partial Zero Emission Vehicles) meet SULEV (Super Ultra Low Emission Vehicle) tailpipe emission standards and also have zero evaporative emissions. The SULEV standard, established under the current LEV II regulation, is equivalent to the Federal Tier 2 Bin 2 standard.
which are regulated under the National Ambient Air Quality Standards (NAAQS) because of their adverse effects on human health and the environment. In this report, MECA provides our assessment of technologies being commercialized by component suppliers, including MECA members, to help their customers comply with future lower NO x standards.
In recent years two methods, namely downsizing and downspeeding, were established on the market to reduce CO 2 emissions while maintaining the driving performance of engines with identical effective power but a larger displacement. bar) is achieved by applying high- or low-pressure exhaust-gas recirculation loops. < IMEP < 22.5
Polycyclic aromatic hydrocarbons (PAHs) and nitrated PAHs were quantified in both the vapor and particle phases of the PM, with the GPF-equipped vehicles practically eliminating most of these species in the exhaust. The rapid market penetration of GDI vehicles has led governments to impose stricter standards to control PM emissions.
This combined combined aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance and a 12+X volt micro-hybrid stop-start and energy recuperation systems. It is capable of operating in exhaust temperatures up to 850 °C, at speeds up to 60,000 rpm and delivering a peak power of 2 kW (@12V).
The entire engine range (115 to 220 PS) meets the Euro-6 standard. The TSI engines deliver 110 kW / 150 PS and 162 kW / 220 PS (a gain of 20 PS) respectively, with the 150 PS version consuming, in combination with the standard manual transmission, 6.4 The DSG transmission is included as standard with the top 220 PS engine.
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