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Exhaust system configuration. Purdue University will work with the team on variable valve train options for warm up and HC control, all leading to the final T2B2 demonstration on a complete, street worthy, driveable vehicle.
Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. Exhaust gas exergy map of EcoCAR engine.
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.
Power for the battery and VTES electric supercharger is not only supplied by the SpeedStart ISG but also the TIGERS exhaust driven turbo-generator. Conversely, short bursts of power can also be absorbed by the SpeedStart generator to recharge the battery during vehicle decelerations. liters capacity.
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
Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter Two pivotal factors are the three-port integrated exhaust manifold cylinder head and a twin-scroll turbocharger. The all-new 2015 Lincoln MKC small premium utility, unveiled last week, offers an all-new engine—a 2.3-liter
With additional support from a major OEM and a Tier One supplier, Torotrak will work in partnership with the University of Bath Powertrain and Vehicle Research Centre to optimize the technology around an advanced production engine. —Andrew De Freitas, Torotrak’s product director.
Developing robust and flexible control algorithms, on the basis of a universal modular platform, to coordinate various actuators, especially during combustion mode transitions. Base engines have been rebuilt according to the new design and are now running at AVL, Bosch and the University of Michigan. Earlier post.). I4 Ecotec engine.
The pneumatic hybrid engine, which follows the downsizing and supercharging paradigm, offers a fuel-saving potential that is almost equal to that of hybrid electric powertrains while inducing much lower additional mass and cost penalties, according to the ETH Zürich researchers. The compressed air supply also allows extreme downsizing.
As the project approaches its mid-point, the research team—led by Ricardo and including Ford Motor Company, Controlled Power Technologies (CPT), the European Advanced Lead Acid Battery Consortium (EALABC), Faurecia and the University of Nottingham—has completed the build of the first functional integration prototype ADEPT vehicle.
In 2010, The US Department of Energy (DOE) selected Delphi, along with partners Hyundai America Technical Center, Inc (HATCI); Wisconsin Engine Research Consultants (WERC); and the University of Wisconsin-Madison (UW) for a $7.48-million Earlier post , earlier post.). Earlier post.) These were two main consideration in base engine design.
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. Source: Bosch. Click to enlarge.
It is more prevalent in the downsized, turbocharged engines that car makers are now producing for improved fuel efficiency while maintaining power output. Pre-ignition remains a bottleneck to further downsizing and improving engine efficiency. Pre-ignition is sporadic and unpredictable. —Eshan Singh, lead author.
A team from Brunel University, MAHLE Powertrain and University College London studied the combined effects of different inlet valve operating strategies on combustion, performance and emissions with different ethanol and 1-butanol blends with gasoline in a single-cylinder spark-ignition research engine equipped with a fully variable valvetrain.
GMZ Energy, a provider of advanced nano-structured thermoelectric generation technology, was co-founded by MITs Professor Gang Chen and collaborator Zhifeng Ren of the University of Houston. down-speeding, downsized engine, etc.), Ultimately, GMZ will test the final TEG on the dyno, and integrate it into the vehicle.
Researchers at Syracuse University (New York) have developed a method to prepare, inject and combust supercritical (SC) diesel fuel. 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. Anitescu et.
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.). Low pressure, cooled EGR system.
For the ADEPT project, the consortium comprises CPT, the European Advanced Lead Acid Battery Consortium (EALABC), Faurecia Emissions Control Technologies, Ford and the University of Nottingham. The exhaust gas can reach temperatures greater than 900 °C, whereas the turbine upper functional limit is 850 °C.
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).
million to a project to develop a high-efficiency engine system that integrates a compact micro-hybrid configuration of a supercharger with an electric waste heat recovery system and employs high rates of recirculated exhaust gases. The project— Split Micro-hybrid Boosting Enabling Highly Diluted Combustion —is headed by Anna G.
The automotive industry, including Lotus Engineering, has quite rightly advocated engine downsizing for four-stroke engines. Downsizing therefore isn’t vital and, due to the improved light-load efficiency and emissions performance we see with Omnivore, this technology approach and ‘upsizing’ could permit a more efficient engine.
will address natural gas engine emissions and efficiency improvements by developing a natural gas specific combustion design utilizing optimized in-cylinder charge motion and cooled exhaust gas recirculation (EGR). Downsized, Optimized, High Efficiency, Spark Ignited Natural Gas Engine. Cummins Inc.
Augmenting its existing LC Super Hybrid program ( earlier post ), which deploys a downsized gasoline-electric powertrain, ALABC is working on advanced diesel-electric applications in development programs being undertaken with car makers including Ford and Kia. —Allan Cooper.
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
The T-Hybrid (based on a Kia Optima) ( earlier post ) and the ADEPT (based on a Ford Focus) ( earlier post ) both utilize an advanced 48V lead-carbon battery system with bolt-on electrical components that allow for significant engine-downsizing without loss in performance. liter engine the performance of a 1.8
A team from the University of Birmingham (UK) and Shell Global Solutions has investigated the effect of RON, octane sensitivity and charge cooling in splash-blended ethanol fuels with different volume percentages of ethanol on a single-cylinder direct-injection spark ignition (DISI) research engine. and 85 vol.%
The ADEPT project is led by Ricardo in a research partnership including the Advanced Lead Acid Battery Consortium (ALABC); Controlled Power Technologies (CPT); Faurecia Emissions Control Technologies UK Ltd; Ford Motor Company and the University of Nottingham. The final results will be presented at the UK’s LCV2016 event on 14-15 September.
Conflicting evidence does not support making a firm conclusion on the fuel consumption benefit of catalysed Exhaust Gas Recirculation (EGR), according to a review of current studies by a team at the University of Bath (UK).
Researchers at Brunel University in the UK, led by Professor Hua Zhao, Head of Mechanical Engineering and Director, Centre for Advanced Powertrain and Fuels (CAPF), are investigating optimizing the performance of controlled autoignition (CAI) combustion in a four-valve camless gasoline direct injection engine running in a two-stroke cycle.
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. liter downsized turbocharged centrally-mounted direct injection engine. The first was equipped with a 2.0-liter
The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology.
The vehicles on which the research was based were representative of current production models at the more aggressive end of the downsizing spectrum in terms of engine capacity and output, but modeled with a future three cylinder 1.5 liter diesel engine. Attribute analysis presented in SIA paper. Click to enlarge.
This means that in addition the power demand is more difficult to achieve with engine downsizing and transmission down-speeding alone. The WLTP is significantly more dynamic with faster acceleration rates. —Paul Bloore, product validation manager for CPT’s hybrid product group. Click to enlarge. The conference.
Researchers in an unrelated study of direct injection natural gasoline engines (dual-fuel combustion in CI-engines using RCCI as well as conventional duel-fuel combustion) at Chalmers University (Sweden) noted that methane’s very high octane number allows the use of high compression ratios in spark ignition engines.
Ohio State University. Iowa State University. University of Pittsburgh. Rutgers, The State University of New Jersey. Penn State University Park. University of Washington, Seattle. West Virginia University Research Corporation. The Research Foundation for the SUNY Stony Brook University.
Furthermore, OLEA T222 technologies and feature set address other applications; it can also serve as a controller for battery management systems (BMS), exhaust or selective catalytic reduction systems (SCR), or even conventional internal combustion engines.
The Dearman liquid air engine is an innovative heat engine that uses liquid air (or liquid nitrogen) as a “fuel” and emits cold air as exhaust. After each expansion cycle the heat exchange fluid is recovered from the exhaust and reheated to ambient temperature via a heat exchanger similar to a conventional radiator. Earlier post.)
Having better control over the combustion process reduces the emission load on the exhaust aftertreatment systems. Eminox SCRT technology can significantly reduce harmful diesel exhaust gases, particularly in urban operating conditions. Earlier post.)
The Freightliner SuperTruck uses a downsized and downsped 10.7-liter The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream. The aftertreatment system features additional insulation to retain maximum heat energy in the exhaust.
In a policy analysis in the ACS journal Environmental Science & Technology , researchers from the Universities of Cambridge, Exeter and Oxford argue that, due to the increased emphasis on alternative fuels with drastically differing energy densities, vehicle efficiency should be evaluated based on energy rather than volume. Click to enlarge.
The upside of gasoline direct injection (GDI) engines is widely seen as being improved fuel economy coupled with an increase in specific power (especially with turbocharging), enabling significant downsizing. A new study by a team at the University of Toronto has made a preliminary assessment of the climate trade-off (i.e.,
Engine downsizing and down-speeding are well suited to take advantage of higher-octane fuels because these engines encounter the knock limit more frequently. Operation under boosted conditions is essential to Co-Optima’s Thrust I effort to maintain acceptable power density for downsized and downsped SI engines.
The collaboration between scientist at Liverpool University and engineers at Ford Motor Company has developed the new spark plug which could help to cut harmful emissions from car engines by replacing the 90 year old technology of traditional spark plugs.
A number of papers from Kalghatgi and his colleagues—and now other groups, including Tsinghua University in China and the Eindhoven University of Technology—have been published recently, exploring different aspects of this approach. Based on these engine studies, they installed a downsized four-cylinder 1.6-liter
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