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Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The starting point of engine braking is marked by a vertical green line, and the end point is marked by a vertical red line.
Energy consumption by light-duty vehicles in the United States, AEO2013 and AEO2014, 1995-2040 (quadrillion Btu). LDV energy consumption declines in AEO2014 Reference case from 16.0 quadrillion Btu in 2040 in the AEO2013 Reference case. Energy demand for aircraft grows in the AEO2014 Reference case from 2.5 Source: EIA.
A team at Chalmers University (Sweden) has tested blends of OME 3-5 , HVO and RME in a light- and heavy-duty CI engine. Performance and emissions were compared to the reference fuels fossil diesel and HVO in a single-cylinder light duty and heavy duty compression ignition engine at different loads. Preuß et al.
Mazda’s roadmap to the ideal internal combustion engine. From a powertrain frame of reference, Mazda is planning a building block strategy—i.e., ” The initial SKYACTIV-G (gasoline) and SKYACTIV-D (diesel) engines that are being applied into new vehicles this year and next show Mazda’s approach to the goal.
million project is supported by the US Department of Energy (DOE) and National Science Foundation as part of their collaborative research program for advanced combustion engines. Operating principle behind an engine using PFS. Ringing is analogous to knocking in spark-ignited engines.). The 3-year, $1.65-million Earlier post.)
Source: Lotus Engineering. The California Air Resources Board (ARB) has published the results of Lotus Engineering’s Phase 2 vehicle mass reduction study on a Crossover Utility Vehicle (CUV). Body-in-white (BIW) refers to the end-product of the weld shop—i.e., Phase 2 body-in-white material usage front three-quarter view.
In a presentation at the SAE 2014 High Efficiency IC Engine Symposium and then in a paper given at SAE 2014 World Congress, Mark Sellnau, Engineering Manager, Delphi Advanced Powertrain, reported that Brake Specific Fuel Consumption for the 1.8L Earlier post , earlier post.). Background. Earlier post.) DOE UFEV program targets.
Lotus now has the blueprint for the next generation of electric sports cars, for future Lotus products and for the Lotus Engineering consultancy to commercialize. It is often referred to as a skateboard power pack layout. —Richard Moore, Executive Director, Engineering, Lotus Cars. Vehicle layout. Battery configuration.
They refer to these emission trajectories as the global CO 2 caps. Broadly, the Ford team found that new light-duty vehicle fuel economy and CO 2 regulations in the US through 2025 and in the EU through 2020 are consistent with the CO 2 glide paths. The near- and mid-term glide paths over the next 5?15 —Winkler et al.
EV refers to all-electric vehicles while PHEV refers to plug-in hybrid electric vehicles, which can be plugged in to draw electricity from an external source but also have a gasoline engine. Source: Argonne National Laboratory, Light Duty Electric Drive Vehicles Monthly Sales Updates, December 2019.
The US Environmental Protection Agency (EPA) announced two new proposed federal emissions standards spanning light-, medium- and heavy-duty vehicles for model year 2027 and beyond. The light-duty vehicle category includes passenger cars and light trucks consistent with previous EPA criteria pollutant and GHG rules.
Under its most conservative of scenarios, more than 5 million light-duty electric-drive vehicles will be on the road in the US by 2035, according to a new forecast by IEE , an institue of the Edison Foundation. The low electric transportation scenario is based on the AEO 2012 Reference Case. Forecast by LDV scenario (millions).
93 Research Octane Number (RON)) would enable higher engine efficiency for light-duty vehicles through reducing engine knock constraints, thereby enabling the design of new spark-ignition engines with higher compression ratios and boost levels. Engines Fuel Efficiency Fuels High Octane Fuels' Earlier post.)
Wiring harness clips in Ford Bronco Sport models are made of ocean-harvested plastic—commonly referred to as “ghost gear.”. Much of that is attributed to the fishing industry, which has come to rely on plastic fishing nets and other equipment because of the durability, light weight, buoyancy and low cost of the material.
In his introductory keynote, Michael Berube, Vehicle Technologies Office Director, Office of Energy Efficiency and Renewable Energy, noted the importance of both engine and fuel technology in a PHEV scenario. But to do that, we need to think about the engine. The focus is what fuel properties maximize engine perfromance.
liter 4-cylinder Atkinson-cycle gasoline engine producing 137 hp (102 kW) at 6200 rpm, teamed with a 124 kW electric motor. The numerical part of the standard category, such as 20 in SULEV20, refers to the emission standard, in thousandths of a gram per mile. l/100km respectively). Electric driving is supported by a 6.7
NuScale Power announced that through further value engineering efforts, using advanced testing and modeling tools, NuScale analyzed and concluded that the NuScale Power Module (NPM) can generate an additional 25% more power per module for a total of 77 MWe per module (gross), resulting in about 924 MWe for the flagship 12-module power plant.
The US Department of Energy’s (DOE’s) Advanced Research Projects Agency - Energy (ARPA-E) will award $38 million to 12 projects that will work to reduce the impacts of light-water reactor used nuclear fuel (UNF) disposal. Earlier post.) Award amount: $2,659,677). Award amount: $1,580,774).
Winning an Academy Award is probably not something most engineers ever expect to do. Vanns, who now works at Disney -owned Industrial Light & Magic , in London, was an avid cinephile growing up. I got into reverse engineering and understanding how computers worked under the hood,” he says.
g/mile); higher performance laser headlights; and new user control and display interfaces and lighting technology. The combustion engine is a four-liter V8 with biturbo charging; it produces 412 kW (560 hp) of power and 700 N·m (516 lb-ft) of torque. The e-tron powertrain delivers 515 kW (700 hp) of system power with 2.5
Raising octane reduces engine knock constraints, enabling the design of new spark-ignition engines with higher compression ratios and boost levels. This leads to improved engine efficiencies and the sought reductions. Earlier post.). Octane numbers.
Gautam Kalghatgi and his colleagues at Saudi Aramco provides further support a pathway for significant improvements in the efficiency of a gasoline engine (i.e., They have changed the base SI engine by increasing the compression ratio to 15, designing a new injection system and injectors and redesigning the combustion chamber.
ASTM has published a revision to the D975 specification for diesel fuel oils; the new D975-14 covers seven grades of diesel fuel oils suitable for various types of diesel engines. 2-D S15: A general purpose, middle distillate fuel for use in diesel engine applications requiring a fuel with 15 ppm sulfur (maximum). 2-D S15 fuel.
The study does not address engines that EPA has not approved for use with E15, such as pre-2001 cars, marine, snowmobile, motorcycle, and small non-road engines. For 2001 and newer cars emission studies also show that engine control units are able to adequately compensate for the higher oxygen and lower energy content of E15.
Dr. Kwame Awuah-Offei, an associate professor of mining engineering at S&T, Dr. Suzanna Long, an assistant professor of engineering management at S&T, and Dr. Shoaib Usman, an assistant professor of nuclear engineering at S&T, will lead the “SMR Supply Chain Assessment” research project. and Westinghouse Electric Co.
Specific BSFC improvements from the D-EGR engine relative to baseline engine. Overall, the engine offered a 13.1% liter gasoline direct injection engine. Terry Alger, assistant director in SwRI’s Engine, Emissions and Vehicle Research Division. from 385 g/kWh to 330 g/kWh in the D-EGR engine. mpg) and a 9.2%
Tesla is constantly improving and upgrading its safety features, not only through engineering advancements with manufacturing but also through simple features that can be added to the vehicle through Over-the-Air updates. The new Model 3, which was codenamed “Highland,” has been available for about a year in the United States.
This patent discloses and claims “ a recombinant microorganism having an engineered isobutanol biosynthetic pathway ” that “ may be used for the commercial production of. yeast or other comparable microorganisms—with an engineered biosynthetic pathway. and this reference prevents a finding of infringement. “ isobutanol. ”.
The EPA report is the authoritative reference for carbon dioxide (CO 2 ) emissions, fuel economy, and powertrain technology trends for new personal vehicles in the United States. Of the five light-duty vehicle types, cars have the highest average adjusted fuel economy of 28.3 Light truck market share. Source: EPA. Fuel economy.
On Friday 27 January, the California Air Resources Board (ARB) adopted the new Advanced Clean Cars (ACC) package that sets out the regulatory emissions and technology requirements for light-duty automobiles through model year 2025. not a series-hybrid type vehicle such as the Chevrolet Volt equipped with a full-capability engine.
Both RN22e and N Vision 74 will continue to be tested and verified by Hyundai’s engineers, so future N road cars can be equipped with their advanced technologies. In addition, Parametric Pixel lighting provides a futuristic flourish. The N brand claim is ‘Never just drive’ because getting from A to B should never be boring.
Since ChatGPT dropped in the fall of 2022, everyone and their donkey has tried their hand at prompt engineering —finding a clever way to phrase your query to a large-language model (LLM) or AI art or video generator to get the best results or side-step protections. Recently, new tools have been developed to automate this process.
(TPI), a TDK Group Company and leader in inertial navigation software, and Uhnder, a leader in digital radar technology have partnered to develop a localization reference design with world-class accuracy and performance with Uhnder’s software-defined digital radar sensor and TPI’s AUTO positioning software.
Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. The team subsequently followed up this first study with a second, exploring the effects in a PFI (port-fuel-injection) engine. The first paper (Han et al.
If the system determines that a driver isn’t paying attention, it delivers multiple warnings—such as bright red lights on the upper rim of the steering wheel—to grab the driver’s attention. The system uses a small camera facing the driver’s eyes to assess whether they are watching the road ahead.
100 km) three-wheeled vehicle with a target date of 2016, unveiled its engine prototype: a 0.9-liter, As the team began to dive into some of the details and changes to meet the desired Elio targets, it found that the Geo Metro engine would not meet the fuel efficiency targets to enable the vehicle fuel economy goal of 84 mpg highway.
In addition to its three four-cylinder gasoline engines (2.0-liter TSI Gen 3 turbocharged EA888 engines) and the a 1.4-liter liter 150-horsepower (112 kW) EA288 TDI Clean Diesel engine offered in the 2015 Jetta already conforms to the upcoming LEV3/Tier 3 emissions standard ( earlier post ) in the USA.
These areas of interest apply to light, medium and heavy duty on-road vehicles. These areas of interest apply to light, medium and heavy duty on-road vehicles. Army Tank Automotive Research Development and Engineering Center (TARDEC). Areas of interest. One or more projects awarded may be managed collaboratively with U.S.
The revoLect project (“High-efficiency electrodes with ultra-light fabric-based current collectors for lithium-ion batteries”) is pursuing two key innovations: replacing the usual metal foils with a metallized fabric structure and using silicon as the anode material.
As a result, the new magnesium alloy has the potential to be used in engine parts, which must withstand higher temperatures. The lab is now testing the alloy in engine mount brackets. A blue light scanner can scan and develop three-dimensional mathematical models. Water jet cutters can pressurize tap water to 250-400 Mpa.
The self-driving S-Class had to deal autonomously with a number of highly complex situations such as traffic lights, roundabouts, pedestrians, cyclists and trams. Traffic lights are monitored by a color camera behind the windscreen with a 90-degree opening angle. Initial testing. Autonomous navigation of roundabouts. Click to enlarge.
Light detection and ranging (lidar) technology provides a three-dimensional map of all objects around the vehicle regardless of external lighting conditions, and as such can be a key element in autonomous vehicle (AV) and advanced driver assistance systems (ADAS). Tesla being a notable holdout so far.) —Jeffries et al.
Target applications for the Kinetis EA series MCUs include seat, sunroof and fuel/water pump systems; general body electronics such as body control, park assist, CAN/LIN nodes, interior lighting; and engine control systems for two-wheel powertrain. The initial Kinetis EA series devices are available now.
According to Deret spokesperson Jean-Luc Fournier, initial trips with the hybrid fleet have revealed a 25% reduction in fuel consumption compared with trucks with conventional engines. liter four-cylinder turbodiesel engine rated at 110 kW (150 hp), which is supported by an electric motor with an output of 40 kW (55 hp).
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