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is showcasing its most recent transmission design at the SAE World Congress in Detroit, Mich. FEV North America, Inc. in hybrid transmission’s capabilities include a 2?speed Click to enlarge. FEV used a clean sheet approach to develop a transmission with such capability.
Simulation study finds Miller version of Scuderi engine can deliver twice the BMEP as naturally aspirated version, theoretically enabling 50% downsizing while maintaining performance. Applying the Miller cycle to the Scuderi engine (right) entails downsizing of the compression cylinder. Source: Scuderi. Click to enlarge.
Volkswagen predicts fuel highway fuel economy will improve by up to 17% with the downsized engine. The Beetle and Beetle Convertible 2.5-liter liter engine will be replaced by the 1.8-liter liter turbocharged four cylinder during the 2014 model year. Electro-mechanical power steering replaces the 2.5’s s hydraulic setup.
BluE’s first eAxle has achieved excellent dynamic performance and downsizing and helps vehicles increase their electric mileage. BluE Nexus Corporation, AISIN CORPORATION, and DENSO Corporation jointly developed an eAxle for Toyota’s new battery-electric bZ4X. Earlier post.)
Google and the IEEE have launched the Littlebox Challenge—an open competition to design and build a small kW-scale inverter with the highest power density (of at least 50 W/in 3 , or 3.05 kW/L) in an enclosure of less than 40 in 3 in volume (0.66L).
Controlled Power Technologies (CPT) will deliver two technical papers at SAE World Congress in April on its SpeedStart torque assist and kinetic energy recovery system ( earlier post ) and TIGERS turbine integrated gas energy recovery system ( earlier post ) for 48V mild hybrid vehicles. Earlier post.)
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.
V-Charge system with mechanical variable drive outperforms conventional boosting methods on downsized gasoline engine. This signals the potential for a new level of downsizing, enabling the industry to further reduce the CO 2 output of high volume vehicles without compromising driver satisfaction. Click to enlarge.
The Scuderi Group announced at the SAE 2011 World Congress in Detroit that boosting one of its air-hybrid split-cycle engines ( earlier post ) with a turbocharger to 3.2 You can either feed [two expansion cylinders] or the logical, more simple approach is that you downsize the compression cylinder. Click to enlarge.
Oerlikon Graziano will present a new front-axle parallel hybrid system at European All-Wheel Drive Congress in Graz, from 10 to 12 April 2013. At the front axle multiple speed transmissions can be tested to improve performances, optimize energy consumption and evaluate possible downsizing of the electric motor.
FEV will showcase some of its 48-Volt technology capabilities at the 2016 SAE World Congress next week in Detroit. The E-Charger combined with a high power vehicle electrical system supports downsized engines with high specific power by improving transient response and low-end torque.
Independent on-engine test results have verified the simulation predictions that a Torotrak V-Charge variable drive mechanical supercharger enables more ambitious levels of engine downsizing. Next generation downsizing and downspeeding remain the industry’s best near-term solutions for reducing carbon emissions.
With these headwinds in mind, there is no doubt that the Japanese steel industry is poised for a major downsizing in the years to come, according to Roskill.
SAE’s 2012 High Efficiency IC Engine Symposium in Detroit—the second as an immediate precursor to the SAE World Congress—opened on Sunday with a consideration of several alternative engine designs: opposed piston 2-stroke (Achates Power); variable compression ratio (MCE-5); split cycle (Scuderi); and advanced rotary (Liquid Piston).
One significant trend is engine downsizing coupled with turbocharging. Smaller, turbocharged engines can be used to raise fuel economy while meeting or exceeding the power and torque of larger engines, allowing engine downsizing and improved fuel economy with little or no performance compromise.
Highly efficient at low engine revolutions, electric superchargers make it possible to downsize engines. This technology, which leverages a switched reluctance motor with very low inertia, responds much more quickly than a conventional turbocharger. HyBoost shows comparable performance to the conventional 2.0L Earlier post.).
New engines and transmission. Click to enlarge. Hyundai Motor is showcasing two new turbocharged gasoline direct injected (T-GDI) engines at the Paris Motor Show 2014. Both engines—1.0-liter liter and 1.4-liter
The engine should yield fuel efficiency gains of more than 50% compared to a downsized, turbo-charged gasoline direct injection engine, while reducing the overall cost of the powertrain system, said Fabien Redon, Vice President, Technology Development at Achates Power. —Don Earlier post.) Delphi GDCI. earlier post ). Fabien Redon.
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. Source: ICCT. Click to enlarge.
This year, the company will release between 30 to 50 fleet trials, Ashton told Green Car Congress , using the 2012 system. XLH engineers have already designed the next-generation release, in which the battery pack is downsized to 1.5 —Justin Ashton. kWh, Ashton said. Both the 2.0
GKN’s two-speed eAxle also enables the motor and all associated systems to be downsized, reducing mass and further increasing efficiency. Two-speed eAxles will help manufacturers enhance hybrid and electric drivetrains and support the trend to downsize eMotors to reduce weight and cost. —Theodor Gassmann.
At the recent 2013 SAE World Congress, engineers from Bosch and AVL presented papers on progress in the ACCESS project, describing the design, combustion development and controls development for a resulting 4-cylinder gasoline turbocharged direct injection (GTDI) engine with part-load HCCI capability. Earlier post.). I4 Ecotec engine.
Hypertruck ERX pairs a downsized generator with a small battery pack. The Hybrid solution is one of Hyliion’s two electrified powertrain systems for long-haul Class 8 commercial vehicles; the other is the coming Hypertruck ERX.
The team presented a paper on their work at the 2013 SAE World Congress in Detroit. Given the properties of the fuel blend, improved fuel efficiencies can be generated by several approaches, including downsizing/downspeeding; increased compression ratio; reduced enrichment; and the leveraging of improved efficiency at part load.
With the entire concept of the Nissan ZEOD RC focussing heavily on downsizing and efficiency, Nissan turned to new lubricants partner Total to help develop the engine. We’re aiming to maintain our position as industry leaders in focussing on downsizing.
Mitsubishi Electric plans to commercialize its new EV motor system after finalizing technologies for motor/inverter cooling, further downsizing and additional efficiency. The EV motor drive system, the smallest of its kind, will enable manufacturers to develop EVs offering more passenger space and greater energy efficiency. Prototype motor.
Simulated performance of downsized 2.0L V6 engine as a baseline, Fallbrook has also simulated the use of a downsized 2.0L generated by a downsized gasoline engine, as compared. The Bullitt prototype has logged more than 3,000 demonstration miles, and remains operational today for regular demonstrations. Click to enlarge.
The Mitsubishi Concept XR-PHEV is a compact SUV featuring a front engine, front-wheel drive layout PHEV system that is configured with a downsized 1.1-liter The mild-hybrid Mitsubishi Concept AR is a compact MPV equipped with a lightweight hybrid system which comprises a downsized 1.1-liter
In a 2010 paper, Roger Stone, Engineering Director, Torotrak noted that conventional turbo- and supercharging technologies are more than capable of delivering the required peak power and torque levels from downsized engines but suffer from a number of. It gives the next generation of downsized powertrains ‘big-engine’ response.
Yet, the 2020 S6 and S7 offer 22% greater EPA-estimated fuel-efficiency with its downsized V6 engine compared to their predecessors without sacrificing performance. In internal tests that simulate real-world standing starts, the latest powertrain exhibits response characteristics that rival Audi’s torque-rich, turbocharged 4.0-liter
liter, 3-cylinder design of the Pinnacle engine, as well as a downsized, turbocharged 750cc Pinnacle design. FEV investigated the impact of six fuel saving technologies: friction reduction; turbocharging; Variable Compression Ratio (VCR); Variable Cam Timing (VCT); Early Intake Valve Closure (EIVC); and downsizing. —FEV analysis.
Downspeeding is a technique that, alongside downsizing, has brought significant efficiency benefits to the automotive and commercial vehicle markets. —Mike Bunce, Head of Research for MAHLE Powertrain LLC and Principal Investigator on the project. Further, simplicity of design and manufacturing will reduce cost and increase durability.
Downsizing from an average premium vehicle requiring an 80kWh to a 50kWh battery pack could save approximately 200kg from the EV’s weight (the equivalent weight of 3-4 people) and importantly, could reduce the build cost of the car by $4,500, depending on metal cost fluctuations and energy density improvements.
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% from using optimal octane in the base engine, and another 7% potential improvement due to downsizing enabled by the increase in torque available.
In its new report on downsized and boosted gasoline engine technologies ( earlier post ) the ICCT highlighted Ricardo’s work on an “extreme” Miller cycle concept with high (13:1) compression ratio (CR) and central direct injection in a downsized boosted engine.
Cleeves told Green Car Congress that the smaller 110 cc engine (Pinnalce had earlier been working on a larger 250cc proof of concept) exhibits a bit more friction, with more of an impact at lighter load, due to some design choices the company made partly due to geometry issues in trying to pack the engine into the constrained scooter space.
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.
to decrease the propensity of gasoline to auto-ignite under high pressure and temperature—will lead to technologies that can increase compression ratio, and support high-efficiency downsizing and downspeeding. Presented at the Society of Automotive Engineers Congress, SAE Paper 2009-01-0694. Alger, T.F.
The project’s focus on sustainability is evident beyond the target of delivering zero-emission transport for rapid response fleets, such as in the use of recycled carbon-fiber in the motorcycle’s construction, and the selection of a downsized battery pack with fast charging capability that reduces the use of rare earth materials.
The company presented these latest test results in a paper at the SAE 2012 World Congress in Detroit. The results represent a light-load indicated efficiency improvement of 15-30% (up to 40.9%). Net indicated efficiency of the Pinnacle Opposed-Piston engine, CR = 15:1, 87 Octane. Source: Pinnacle. Click to enlarge.
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.
At the 2016 International VDI Congress “Drivetrain for Vehicles” in Friedrichshafen, Germany, John Fuller, Director of Concepts & IP for Torotrak Group, presented and discussed the company’s latest advances to optimize its full-toroidal variator technology for the light vehicle market as applied in continuously variable transmissions (CVTs).
By enabling engine downsizing, eBooster technology improves fuel efficiency by 5 to 10 percent in combustion and hybrid vehicles. Our market-leading eBooster technology enables 6-cylinder engines to deliver the same performance and even more fun-to-drive experience as a much larger conventional V8.
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