Neste, HERE and PTV study finds navigators do not always propose the CO2-friendliest route

A collaboration between Neste, HERE Technologies, and PTV Group indicates that traffic-related CO2 emissions can be reduced by choosing the right driving route, especially in urban areas on short trips with private cars. Earlier this spring, Neste and its partners tested the emissions of different route options by installing measuring... Read more →


Lucid Motors announced that it has achieved a new mark in aerodynamic efficiency for its luxury electric car, the Lucid Air. With tests recently completed at Windshear’s advanced rolling-road wind tunnel, Lucid verified a coefficient of drag of 0.21, making the Lucid Air the most aero-efficient luxury car. As quick... Read more →


Ricardo partners with Achates Power to launch West Coast powertrain team

Ricardo North America (Ricardo), engineering specialists in advanced propulsion, software and thermal management, has added to its powertrain design and development expertise with the launch of a team in Southern California and a partnership with opposed-piston engine developer Achates Power. The announcement follows Ricardo’s recent partnership agreement with Excel Engineering... Read more →


Mercedes-AMG is moving ahead with electrification through innovative developments while also benefiting from motorsport know-how. An electric exhaust gas turbocharger, which in future will be used for the first time in a series production model, is already in the final stages of development. Developed in partnership with Garrett Motion, this... Read more →


The weight of heavy-duty trucks as they drive causes a slight deflection in the road surface under them—enough of a dip to make a difference to the trucks’ overall fuel efficiency (deflection-induced pavement-vehicle interaction). Now, a study by MIT researchers suggests that small changes in roadway paving practices could reduce... Read more →


South Australian manufacturer Hydrogen Direct Injection’s (HYDI) systems have been in various stages of development and testing since 2013 but are now on the verge of commercialization following encouraging testing results from the University of South Australia. The independent testing on a generator showed the unit reduced diesel consumption in... Read more →


NYC study of actual fuel economy of fleet finds hybrids more fuel efficient as compared to conventional vehicles than expected

Using telematics, NYC Fleet, part of New York City’s Department of Citywide Administrative Services (DCAS), recently analyzed actual fuel economy in its hybrid and non-hybrid vehicles and compared it to the EPA ratings for each make and model. The results showed that hybrids performed better against their EPA ratings than... Read more →


Scientists, engineers, and analysts with the US Department of Energy’s Co-Optimization of Fuels & Engines (Co-Optima) initiative are examining how simultaneous improvements to fuels and engines can improve efficiency and reduce emissions and costs for the entire on-road fleet, including light-duty (LD), medium-duty (MD), and heavy-duty (HD) internal combustion vehicles... Read more →


Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) have developed an onboard separation system that could support increased fuel economy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system. A paper on the team’s exploratory research, which was supported under the DOE’s Co-Optima... Read more →


FCA says that its latest Global Warming Potential (GWP) analysis found that the redesigned-for-2018 Jeep Wrangler Unlimited has an overall GWP 15% lower than that of its predecessor. The GWP improvement was calculated using industry-standard software that examines multiple factors associated with a vehicle’s design, production and on-road performance. These... Read more →


A team from the University of Tennessee and the National Renewable Energy Laboratory (NREL) has the fuel savings due to fuel economy improvements over the past 43 years amount to approximately two trillion gallons of gasoline. They further estimated that roughly one-fifth of the savings can be attributed to gasoline... Read more →


The average production-weighted fuel economy for all new light-duty vehicles in model year (MY) 2019 was 95% better than in MY 1975, while average horsepower was 78% higher and weight was 1% higher, according to the 2019 EPA Automotive Trends Report. From the late 1980s to the mid-2000s, fuel economy... Read more →


Cummins Inc. and Tula Technology, Inc., developer of Dynamic Skip Fire cylinder deactivation technology (earlier post), collaborated on a significant technical demonstration of diesel Dynamic Skip Fire (dDSF) cylinder deactivation. By using dDSF software to control cylinder deactivation in a diesel engine, Cummins and Tula demonstrated significant reductions in emissions... Read more →


Replacing dry biomass-derived fuels with biogas and biogas-derived fuels in certain sectors of the energy system can reduce dry biomass consumption by up to 16% when used for power, heat or industrial sectors, according to a new study by researchers By Aalborg University in Denmark. This paper analyses the role... Read more →


MECA: industry could exceed relaxed US efficiency standards as it has to meet tighter standards elsewhere

On 31 March, the US Environmental Protection Agency (EPA) and the National Highway Traffic Safety Administration (NHTSA) released the final rule for The Safer Affordable Fuel-Efficient (SAFE) Vehicles for Model Years 2021-2026. The final rule requires a 1.5% year-over-year increase in fuel efficiency and reduction in GHG emissions standards, which... Read more →


DOT and EPA release revised fuel economy and GHG emission standards for MY 2021-2026 light-duty vehicles

The US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) and the US Environmental Protection Agency (EPA) released the final Safer Affordable Fuel-Efficient (SAFE) Vehicles Rule setting corporate average fuel economy (CAFE) and CO2 emissions standards for model years 2021-2026 passenger cars and light trucks. These final rules follow... Read more →


For the past four years, the Co-Optimization of Fuels & Engines (Co-Optima) National Laboratory consortium has focused research efforts primarily on turbocharged (boosted) spark-ignition (SI) engines for light-duty vehicles. This research involves identifying the fuel properties and engine parameters that mitigate knock and emissions, while maximizing boosted SI efficiency and... Read more →


Brought to the US market for the first time in the 2020 Audi S6 and S7, Audi’s Electric-Powered Compressor (EPC) comes paired to the 2.9-liter, twin-turbocharged TFSI V6 engine. It consists of an electric motor with a small turbine that helps quickly build turbo boost pressure, sharpening throttle response and... Read more →


Hyundai officially launched its all-new 2021 Elantra and Elantra Hybrid in West Hollywood, CA. The 2021 Elantra showcases Hyundai’s latest ambitions, including a Sensuous Sportiness design identity, hybrid-electric vehicle technology, and segment-first wireless Android Auto and Apple CarPlay connectivity. Production of the 2021 Elantra starts in the fall in Ulsan,... Read more →


The technology group Wärtsilä, together with a consortium of six other industry and academic partners, has been awarded EU funding for a major project aimed at reducing fuel consumption and lowering emission levels for shipping. The SeaTech project consortium has been formed to develop two symbiotic ship engine and propulsion... Read more →


In addition to the European car market recording tepid growth in 2019, CO2 emissions have continued to increase, despite new regulation designed to curtail this, according to JATO Dynamics. Last year, the volume-weighted average CO2 emissions for European markets were at their highest recorded levels since 2014. According to data... Read more →


In the US, Model Year (MY) 2018 vehicle fuel economy was 25.1 miles per gallon, 0.8% higher than the 24.9 miles per gallon MY 2017, according to the annual Automotive Trends Report released by the US Environmental Protection Agency (EPA). In model year 2018, the average estimated real-world CO2 emission... Read more →


SuperTurbo Technologies Inc. (formerly VanDyne SuperTurbo) has appointed Ricardo Performance Products to support the first phase of commercial industrialization of the SuperTurbo system—a novel planetary traction drive that enables high speed power transfer to and from a turbocharger shaft, offering significant driveability and fuel efficiency benefits for large trucks. The... Read more →


Approximately 6 billion gallons of fuel are wasted in the US each year as vehicles wait at stop lights or sit in dense traffic with engines idling, according to US Department of Energy estimates. The least efficient of these vehicles are the large, heavy trucks used for hauling goods—they burn... Read more →


The new BMW Aerodynamic Wheel is making its debut together with the BMW iX3, the market launch of which is planned for this year. The new combination of aluminum base wheel and individually designed inserts complements the efficient basic alignment of the BMW Group’s first purely electric Sport Activity Vehicle... Read more →


Consumer Reports calls on automakers to drop support for rollback of federal gas mileage standards

Consumer Reports sent letters and a consumer petition to the leaders of General Motors, Toyota, Fiat Chrysler, Nissan, Subaru, Mazda, Hyundai, Kia, and Mitsubishi, calling on the companies to drop their legal attack against America’s Clean Air Act, and instead support Clean Car standards that help drivers save money on... Read more →


SEAT, a Volkswagen Group company, has expanded the number of supply routes for the transport of components using duo trailers and giga trailers, the two longest types of trucks with the greatest capacity travelling on European roads. The Spanish company currently has two duo trailer routes that link the Martorell... Read more →


From the 2010 model year through to September 2019, 14.6% of new vehicle sales in the United States have been pickup trucks, according to JATO Dynamics. From a 13.1% market share in 2010, pickups have grown to claim a 16.8% market share in 2019. Source: JATO Dynamics In contrast, pickups... Read more →


PPPL scientists find spinning gas in cylinders could improve the efficiency of engines while reducing pollutants

Researchers at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have received a patent from the US Patent and Trademark Office for a novel design that could increase the efficiency and reduce toxic emissions from gasoline-fueled internal combustion engines. The theoretical design lays out methods for rapidly... Read more →


The estimated annual fuel costs for model year (MY) 2019 all-electric light-duty vehicles are the lowest of all the different vehicle technologies, ranging from a low of $500 to a high of $900 per year, according to the US Department of Energy (DOE). The annual fuel costs for plug-in hybrid-electric... Read more →


At the Los Angeles Auto Show, Toyota introduced its new plug-in hybrid (PHEV) RAV4 performance model with an estimated 302-horsepower, advanced all-wheel drive, sport-tuned suspension and exclusive design features. In addition to an ability to do 0-60 mph in a projected 5.8 seconds—the second quickest acceleration time in the Toyota... Read more →


California prohibits state purchase of ICE sedans, effective now; to stop buying from GM, Toyota, FCA and others over emissions fight

On Friday, the California Department of General Services (DGS) that, effective immediately, it is prohibiting purchasing by state agencies of any sedans solely powered by an internal combustion engine, with exemptions for certain public safety vehicles. A second policy, currently being developed by DGS, will require state agencies, starting on... Read more →


China-based Kolbenschmidt Huayu Piston Co. Ltd. (KSHP) (belonging to Rheinmetall Automotive AG) has received an order from one of the world’s biggest car producers with a lifetime volume totaling more than €200 million for modern lightweight pistons for gasoline engines with ring carrier and coolant gallery technology. Lightweight gasoline piston... Read more →


A study by Gentherm, a developer of innovative thermal management technologies, and General Motors has shown that Gentherm’s ClimateSense microclimate thermal comfort system significantly increases driving range and energy savings in electric vehicles. The results of the study were presented during the SAE Thermal Management Systems Symposium last week in... Read more →


Dutch start-up ECONAMIQ is developing a novel engine technology which saves up to 20% in fuel consumption. The “ECONAMIQ principle” uses flexible over-expansion in combination with cylinder deactivation technology to increase performance and efficiency without significantly changing the engine layout or architecture. By over-expanding into adjacent de-activated cylinders, ECONAMIQ creates... Read more →


A team from the University of Palermo and ICAR has developed an electric kinetic energy recovery system (e-KERS) for internal combustion engine vehicle (ICEVs) based on the use of a supercapacitor as energy storage, interfaced to a brushless machine through a power converter. In a paper in the Journal of... Read more →


Norsepower Oy Ltd., together with project partners Maersk Tankers, Energy Technologies Institute (ETI) and Shell International Trading and Shipping Company Ltd., announced successful trial results of two Norsepower Rotor Sails onboard the Maersk Tankers product tanker, Maersk Pelican. The Rotor Sails are large, cylindrical mechanical sails that spin to create... Read more →


Eaton says it has shown in regulatory test cycles and real-world use that its cylinder-deactivation (CDA) technology can play a key role in helping commercial vehicle manufacturers meet or exceed 2024 and 2027 US emissions regulations. The company will make the announcement at the North American Commercial Vehicle show (NACV)... Read more →


In Japan, Toyota Motor Corporation (Toyota) unveiled the new model Yaris. Scheduled to go on sale in Japan starting in mid-February 2020, the new Yaris will be exhibited at VenusFort in Odaiba, Tokyo during the Tokyo Motor Show 2019. The new Yaris will also be displayed in showrooms throughout Japan... Read more →


Modern piston assemblies are subject to high demands in terms of both loading and lifetime; in addition, there is the environment-friendly demand for low engine emissions. KS Kolbenschmidt has developed its LITEKS concept for particularly low-friction piston systems installed in highly loaded gasoline engines. The supplier is now introducing its... Read more →


A new Co-Optimization of Fuels & Engines (Co-Optima) report describes the top ten biofuel-derived blendstock candidates. These top candidates, when blended with petroleum and used in a boosted spark ignition (BSI) engine, will offer environmental benefits and boost energy efficiency all while being available at a competitive price. One of... Read more →


Thirty-seven globally prominent scientists representing the International Journal of Engine Research have published an open-access editorial addressing the future of the Internal Combustion Engine, and stressing the importance for continued development of more efficient and even lower-emitting technologies. The article provides an assessment of the state of power generation in... Read more →


Ram Truck announced EPA fuel economy ratings for the 2020 Ram 1500 powered by the new 3.0-liter V-6 EcoDiesel engine. The half-ton EcoDiesel will be rated at 32 miles per gallon (mpg) highway, 22 mpg city for 4x2 models; 29 mpg highway, 21 mpg city for 4x4 models. Ram 1500’s... Read more →


NYC Comptroller Stringer and investors with $1.1T urge GM to get on board with the California compromise agreement on vehicle standards

New York City Comptroller Scott M. Stringer and a coalition of 25 major investors with $1.1 trillion in collective assets under management called on General Motors (GM) to join other OEMs in the compromise agreement with California and other states on clean vehicle standards. In a letter sent to GM’s... Read more →


The rebooted Aptera Motors has teamed with Elaphe Propulsion Technologies on a long-range, volume production electric vehicle powered by in-wheel motors. Aptera, initially known as Accelerated Composites, formed in 2005 to bring highly efficient, three-wheeled vehicles to the market (earlier post), went out of business in 2011. Now resurrected, with... Read more →


Audi Sport GmbH has fine-tuned many details of the RS 4 Avant which was newly introduced in September 2017, including the addition of a new high-torque twin-turbo V6 with a power output of 331 kW (450 metric hp) and 600 N·m (442.5 lb-ft) of torque to the crankshaft in a... Read more →


by Michael Sivak. This is the latest of my occasional updates on retrospective, long-term trends in U.S. vehicle fuel economy. Specifically, this study examines actual fuel economy of cars and light trucks (pickup trucks, SUVs, and vans) from 1966 through 2017. Calculated vehicle fuel economy is available going back to... Read more →


EPA, NHTSA issue One National Program Rule; EPA withdraws CA waiver for GHG and fuel economy

The US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) and the US Environmental Protection Agency (EPA) issued a final action entitled the “One National Program Rule,” which will enable the federal government to provide nationwide uniform fuel economy and greenhouse gas emission standards for automobiles and light duty... Read more →


EPA Administrator broadly outlines Trump Administration thinking on fuel economy standards and California

In a speech on Tuesday at the National Automobile Dealers Association meeting in Washington, US Environmental Protection Agency (EPA) Administrator Andrew Wheeler outlined the Trump Administration’s thinking on national fuel economy standards and California. Wheeler said that the Administration will begin taking steps in the very near future to establish... Read more →


Argonne team developing MaLTESE for onboard realtime adaptive learning and controls

Researchers at Argonne National Laboratory are developing a deep learning framework—MaLTESE (Machine Learning Tool for Engine Simulations and Experiments)—to meet ever-increasing demands to deliver better engine performance, fuel economy and reduced emissions. The MaLTESE effort is a great example of how Argonne supercomputing resources enable researchers to combine large-scale simulations... Read more →