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The need to reduce CO 2 emissions is leading to downsized engines, heavily boosted by turbo- or supercharging. Rotrak, the new 50:50 joint-venture between traction drive specialist Torotrak plc and centrifugal supercharger company Rotrex AS, will present a highly efficient supercharger system in a paper at the 15 th Supercharging Conference in Dresden on 24 September. MORE
’s decision to cut stop producing the Colt subcompact there highlight the a downsizing trend in Europe for Japanese carmakers as the new-vehicle market there shrinks. The Nikkei writes that Daihatsu Motor Co.’s ’s withdrawal from new-vehicle sales in Europe and Mitsubishi Motors Corp.’s The EU market for new passenger cars declined by 5.5% MORE
Steels hardened in this way are suited for use in components subjected to high mechanical and thermal loads in downsized, energy-efficient and low-emission engines of the future. Combustion engines still have potential to save energy and reduce emissions; a current trend is to use downsized engines of the same or even increased power. Diesel injection systems have to reach higher injection pressures and improved injection accuracies in order to meet the requirements of downsizing. MORE
The Volvo Car Corporation is introducing a new, downsized engine range consisting solely of four-cylinder gasoline and diesel engines. It proves that downsized engines can go hand in hand with our customers’ expectations on luxury and driving pleasure. The upcoming four-cylinder VEA (Volvo Environmental Architecture) engine range includes common rail diesels and direct injected gasoline engines. MORE
Alfa Romeo has this week proven how to make downsizing fun, engaging and a treat for enthusiasts: it has launched the MiTo 875cc TB TwinAir 85. The Green Piece Alfa Romeo downsizingTuesday 24 July, 2012. The Green Piece Column. As its name suggests, it is indeed a 0.875-litre engine – even more intriguing than that, it boasts just two cylinders, [.]. MORE
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. MORE
The HyBoost project vehicle was revealed for the first time today at the Cenex Low Carbon Vehicle 2011 event hosted at Rockingham, UK, demonstrating a combination of high-impact, low-cost electrical systems which offer the prospect of radical engine downsizing using electric supercharger and energy capture and storage technologies within an otherwise conventional gasoline powertrain architecture. HyBoost demonstrator. Click to enlarge. MORE
emissions hybrid downsizing CAFE Fuel Economy Turbocharging EPA Ratings Corporate Average Fuel EconomyLately, automakers haven't been touting the rising fuel economy of new vehicles, but it has to continue rising to meet reductions in the legal levels of carbon emitted. While major strides in fuel economy have been made over the past five years, the complex engine technologies and other improvements turn out to have less effect in real-world. MORE
Even supercar makers take the environment into account when designing a car these days. Modern Ferraris, Lamborghinis and Porsches have to meet the same regulations as regular passenger cars, even if ultimately they still use more gasoline and pump out more emissions. Ferrari is hoping to cut its gas guzzling ways further by developing a hybrid MORE
They have downsized engines across model lines, usually adding turbochargers at the same time to match the power output of the larger-displacement engines that they. emissions VW downsizing Fuel Economy TurbochargingWhen it comes to improving fuel efficiency, simply making an engine smaller is a fairly direct way to get results. It's the approach that many automakers have taken in recent years. MORE
One significant trend is engine downsizing coupled with turbocharging. Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3% MORE
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. MORE
Volvo Car Corporation will rely on a powertrain strategy based on its new downsized 4-cylinder VEA (Volvo Environmental Architecture) engine platform ( earlier post ) and hybrids for the US market, said John Maloney, recently appointed President of Volvo Cars, US, in an interview at the Detroit Auto Show. The XC60 Plug-in Hybrid Concept was introduced at the Detroit Auto Show. Click to enlarge. MORE
Eight days from now, the 2014 Jeep Cherokee 4x4 crossover will be unveiled to the world at the New York Auto Show's media preview days. Jeep released the first photos and details of the 2014 Cherokee three weeks ago, and now it's served up a video to whet our appetites further. The video is meant to demonstrate the Cherokee's off-road MORE
One in ten people have downsized their car to smaller engined-model to save money of running costs, according to new research from Enterprise Rent-A-Car. MORE
'Cummins reports that it, along with partners Johnson Matthey and Nissan, is on plan in a 4-year, $30-million ($15 million from the US Department of Energy) research project to deliver a light-duty diesel engine with fuel economy 40% improved over that of baseline gasoline V8 engine for a half-ton pickup truck while also meeting the requirements of US Tier2 Bin2 tailpipe emissions. ( Earlier post.). At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4 l/100 km) for a vehicle of that size. However, he added, the internal goal is “ significantly higher, ” and is targeting the GHG limit. Cost of the new engine relative to gasoline baseline. Source: Cummins. Click to enlarge. The 4-year project is scheduled to wrap up in September of this year. The technical focus over the last year has been on new engine installation and performance assessments. In 2013, the Cummins-led team demonstrated a Tier 2 Bin 5 version of the engine on the dyno, and then on a vehicle, while development of the Tier 2 Bin 2 engine started. So far this year, the team has integrated the T2B2 aftertreatment in the dynamometer environment and is in the process of convert the demonstration vehicle to the T2B2 configuration. Demonstration of T2B2 at the tailpipe is slated for later this year. So far, Ruth noted, the new engine has achieved target engine-out emissions (EOE), performance and fuel economy; aftertreatment catalyst performance has met or exceeded the targeted conversion rates, enabling an increased allowance on engine out HC. The approach that Cummins and partners have taken features: Replacing the aluminium V8 gasoline engine and emission control system with smaller diesel (2.8-liter) and its emission control system (ECS) without a weight penalty. Cummins made extensive use of aluminium as well as space-saving design features for new engine weight control. The aluminum block and head is sandwiched between an iron backbone cam carrier and iron ladder frame base, firmly held with iron-to-iron bolts. Lightweight steel pistons provide reduced friction & compression height with increased power density. Cummins achieved its weight-neutral goal based on a gasoline engine with emission control system (ECS) weight of 514 lbs (233 kg); the new aluminum 2.8L diesel weighs 362 lbs (164 kg), while the ECS weighs 152 lbs (69 kg). Taking learnings from LTD and LDECC programs to utilize PCCI (pre-mixed charge compression ignition) and high charge flow operation. Low pressure EGR; Johnson Matthey’s Cold Start Concept (CSC) catalyst for cold start NO x & HC mitigation; an NH 3 gas system from Amminex ( earlier post ) for immediate reductant delivery; and a small engine running higher loads resulting in faster warm-up all contribute to reducing the fuel economy penalty for meeting the more stringent emissions target. Johnson Matthey’s new CSC stores HC and NO x at low temperatures with very high storage efficiencies, and also converts a significant portion of the stored HC/NO x during the warm-up period before the rest of the HC/NO x is thermally released from the catalyst. The HC/NO x release temperature in a cold start catalyst is high enough that the released HC/NO x can be further converted by the downstream catalytic components. In addition, the cold start catalyst also exhibits excellent CO, HC, and NO oxidation activity under normal lean conditions. Exhaust system configuration. SCR coated on filter (SCR-F) allows for close coupling of an SCR (selective catalytic reduction) function for fast light off. The Amminex direct ammonia delivery system (DADS) can further improve NO x conversion performance by reducing the time delay before NH3 introduction after cold start. DADS also allows for multiple NH 3 -dosing locations, which allows for the integration of additional under-floor SCR elements to mitigate infrequent regeneration adjustment factors (IRAF). Source: Cummins. Click to enlarge. The team has achieved T2B5 vehicle engine out emissions as well as T2B2 test cell engine out emissions when running dual loop EGR. Further, the first demo vehicle has demonstrated T2B5 with margin without the aid of the full dCSC and LP EGR, while maintaining fuel economy above the target. The work remaining will see the full engine move to Johnson Matthey for refinement of the CSC operation, and refinement of the overall aftertreatment control strategy. 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. Resources (DOE will publish Merit Review presentations on its website.). Michael Ruth (2014) “ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine” DOE 2014 Annual Merit Review, Project ACE061. Chen, H., Mulla, S., Weigert, E., Camm, K. et al. (2013) “Cold Start Concept (CSC): A Novel Catalyst for Cold Start Emission Control,” SAE Int. J. Fuels Lubr. 6(2):372-381 doi: 10.4271/2013-01-0535. Diesel Emissions Engines Fuel Efficiency' MORE
In a partnership to be known as Rotrak, Torotrak’s variable speed traction drive will combine with Rotrex’s supercharging technology to help provide affordable engine downsizing technologies to the automotive industry. Tags: Green cars Latest news engine downsizing technology Rotrex supercharging technology Torotrak variable speed traction drive MORE
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. The current development of downsized spark ignition (SI) engines with boost pressure is a proven way of increasing the thermal efficiency and reducing CO 2 emissions. MORE
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 and 1.4-liter units which are part of a new generation of engines from the Kappa family—meet growing demand for small capacity, turbocharged engines to reduce fuel consumption and CO 2 emission without compromising performance. MORE
FEV’s 698 cm 3 Extremely Downsized Engine. will show its Extremely Downsized Engine (EDE) at next week’s 2010 SAE World Congress in Detroit. Click to enlarge. FEV, Inc. MORE
Green EPA Ratings EcoBoost Fuel Economy downsizing motorcyclesHow are fuel-efficient are some of today's smaller cars? It turns out that they now actually equal the fuel economy of larger motorcycles--which is pretty amazing for a four-seat vehicle weighing more than a ton. Especially since the motorcycles returning comparable gas-mileage figures weigh about one-fifth as much. DON'T MISS: Auto Industry Doing. MORE
Three-cylinder engines are all the rage right now. Once the preserve of basic economy cars, they''re now used in everything from the latest generation of economy vehicles, through sporty hatchbacks like the 2015 MINI Cooper and Ford Fiesta 1.0 EcoBoost, to BMW''s i8 plug-in hybrid sports car. Mercedes-Benz though will not be joining the three-pot MORE
Downsizing", as it''s called, involves using a smaller engine to do the work of a larger alternative--usually through turbocharging--while enjoying the fuel efficiency benefits associated with its size. Noticed engines getting smaller recently? You''re not alone. Engineering firm Ricardo thinks this will continue, and not just in small MORE
Ricardo will assist Lifan Automobile Group based in Chongqing, China, with the development of a family of highly downsized gasoline engines capable of meeting future Chinese and international fuel economy and emissions regulations. range of naturally aspirated engines, while a premium high-boost DI version will provide even greater levels of downsizing by replacing products of up to 2.0L MORE
Today, we look at why more SUVs and crossovers don't offer hybrid powertrains, Faraday Future scales back production plans, and three battery energy-storage sites come online in California, including one from Tesla. All this and more on Green Car Reports. See the Lucid Air electric luxury sedan hit the road in this new video. Bowing to what seems. Today in Car News MORE
This marks Toyota’s first downsizing of its HSD technology. Yaris HSD concept. Click to enlarge. MORE
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. MORE
Mitsubishi will show a 4-motor PHEV concept at the Tokyo Motor Show later this month, highlighting new electrification tech and unconventional gasoline power in a new downsized SUV package. MORE
We drive Mitsubishi’s plug-in SUV, and wonder if downsized pickups really are a bigger thing than automakers project. And guess who’s now neighbors with the Mustang Ranch? This is The Week In Reverse for Friday, September 12, here at Green Car Reports. MORE
Downsizing is all the rage these days and one of the first sectors to truly embrace it was the people carrier class (more commonly called MPV these days – when did that happen?). MORE
HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. HyBoost offers comparable performance to the conventional current 2.0L MORE
emissions Future Cars downsizing Engines Fuel EconomyNot so many years ago, a 1.2-liter engine would only have been found in the U.S. in the smallest and least impressive of subcompact cars. It might have been a 3-cylinder, and certainly wouldn't have had even 100 horsepower. But times change, and engines of that size will soon be found even in the smallest of Mercedes-Benz luxury cars. DON'T MISS. MORE
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. MORE
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. MORE
The new Advanced Elastoval II piston is lighter, delivers increased power outputs and can withstand the higher pressures that occur late in the combustion cycle of highly charged downsized engines. The new Advanced Elastoval II piston. Click to enlarge. MORE
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). MORE
Volkswagen predicts fuel highway fuel economy will improve by up to 17% with the downsized engine. Technologies in the EA888 engine line. Click to enlarge. Among the important product changes for Volkswagen of America for the 2014 model year is the introduction of the EA888 1.8-liter turbocharged and direct-injection four-cylinder TSI engine, which will gradually replace the 2.5-liter five-cylinder naturally aspirated powerplant fitted to the Jetta, Beetle, and Passat models. MORE
EcoBoost Turbochargers direct injection downsizing Fuel Economy EPA Ratings Back in 2009, Ford introduced what would become the backbone of its fuel-efficiency strategy: the EcoBoost line of efficiency-focused engines. Ford has used the smaller turbocharged, direct-injected engines in most of its models to improve its EPA fuel-economy ratings--even if high gas-mileage numbers aren''t always reflected in all buyers''. MORE
We tend to get a lot of "What car should we buy?" questions at GreenCarReports, and we'll usually respond with a list of questions to narrow down the choices. Recently, though, our high-school friend Sarah Sette in Baltimore sent the following note: We are car shopping, seriously this time. The 1996 Subaru Legacy wagon is sadly aging and we need MORE
Volvo isn’t the largest automaker in the world -- but it is one of the safest thanks to a long-standing passion about passenger and pedestrian safety dating back to when the company was founed nearly 85 years ago. But recently Volvo has developed a new passion to put alongside its aim to have no-one die as a result of a Volvo accident by the MORE
Downsizing entails the replacement of engine displacement with turbocharging. Audi has introduced a new low-displacement turbocharged gasoline engine in the A3 model line. Earlier post.) The 1.2L TFSI engine generates 77 kW (105 hp), with fuel consumption of 5.5 L/100km (42.8 mpg US); CO 2 emissions are 127 g/km (204 g/mile). The wholly redesigned 1.2 TFSI—which produces a specific power output of 87.7 hp per liter from 1,197 cc (73.05 MORE
V-Charge system with mechanical variable drive outperforms conventional boosting methods on downsized gasoline engine. Though tested on a gasoline application, Torotrak anticipates that V-Charge will achieve similar gains on a downsized diesel engine. MORE
Seres, the startup electric carmaker formerly known as SF Motors, is shelving plans to bring a new electric car to market in the U.S. MORE
Writing about the latest carmaker plans to add smaller, more efficient engines is now almost a weekly occurrence. Today's lucky winner is Jaguar, which took the occasion of the Beijing Auto Show to announce some future powertrain plans--including its first production four-cylinder engine since the late and unlamented X-Type sedan. More exciting MORE
Downsizing Related Topics Green Car Reports
OCTOBER 4, 2019
Mitsubishi will show a 4-motor PHEV concept at the Tokyo Motor Show later this month, highlighting new electrification tech and unconventional gasoline power in a new downsized SUV package.
Green Car Reports
FEBRUARY 8, 2017
They have downsized engines across model lines, usually adding turbochargers at the same time to match the power output of the larger-displacement engines that they. emissions VW downsizing Fuel Economy TurbochargingWhen it comes to improving fuel efficiency, simply making an engine smaller is a fairly direct way to get results. It's the approach that many automakers have taken in recent years.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Green Car Reports
JULY 18, 2019
Seres, the startup electric carmaker formerly known as SF Motors, is shelving plans to bring a new electric car to market in the U.S.
Green Car Congress
OCTOBER 10, 2016
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.
Green Cars News
JULY 24, 2012
Alfa Romeo has this week proven how to make downsizing fun, engaging and a treat for enthusiasts: it has launched the MiTo 875cc TB TwinAir 85. The Green Piece Alfa Romeo downsizingTuesday 24 July, 2012. The Green Piece Column. As its name suggests, it is indeed a 0.875-litre engine – even more intriguing than that, it boasts just two cylinders, [.].
Green Car Congress
JULY 28, 2014
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).
Green Car Reports
SEPTEMBER 13, 2014
We drive Mitsubishi’s plug-in SUV, and wonder if downsized pickups really are a bigger thing than automakers project. And guess who’s now neighbors with the Mustang Ranch? This is The Week In Reverse for Friday, September 12, here at Green Car Reports.
Green Car Congress
JANUARY 2, 2018
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. The current development of downsized spark ignition (SI) engines with boost pressure is a proven way of increasing the thermal efficiency and reducing CO 2 emissions.
Green Car Reports
MARCH 26, 2012
Even supercar makers take the environment into account when designing a car these days. Modern Ferraris, Lamborghinis and Porsches have to meet the same regulations as regular passenger cars, even if ultimately they still use more gasoline and pump out more emissions. Ferrari is hoping to cut its gas guzzling ways further by developing a hybrid
Green Car Congress
APRIL 6, 2016
One significant trend is engine downsizing coupled with turbocharging. Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3%
Green Cars News
DECEMBER 21, 2012
Downsizing is all the rage these days and one of the first sectors to truly embrace it was the people carrier class (more commonly called MPV these days – when did that happen?).
Green Car Reports
MARCH 13, 2014
Three-cylinder engines are all the rage right now. Once the preserve of basic economy cars, they''re now used in everything from the latest generation of economy vehicles, through sporty hatchbacks like the 2015 MINI Cooper and Ford Fiesta 1.0 EcoBoost, to BMW''s i8 plug-in hybrid sports car. Mercedes-Benz though will not be joining the three-pot
Green Car Congress
DECEMBER 17, 2015
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.
Green Car Congress
OCTOBER 31, 2016
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.
Green Car Congress
JUNE 23, 2014
'Cummins reports that it, along with partners Johnson Matthey and Nissan, is on plan in a 4-year, $30-million ($15 million from the US Department of Energy) research project to deliver a light-duty diesel engine with fuel economy 40% improved over that of baseline gasoline V8 engine for a half-ton pickup truck while also meeting the requirements of US Tier2 Bin2 tailpipe emissions. ( Earlier post.). At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4 l/100 km) for a vehicle of that size. However, he added, the internal goal is “ significantly higher, ” and is targeting the GHG limit. Cost of the new engine relative to gasoline baseline. Source: Cummins. Click to enlarge. The 4-year project is scheduled to wrap up in September of this year. The technical focus over the last year has been on new engine installation and performance assessments. In 2013, the Cummins-led team demonstrated a Tier 2 Bin 5 version of the engine on the dyno, and then on a vehicle, while development of the Tier 2 Bin 2 engine started. So far this year, the team has integrated the T2B2 aftertreatment in the dynamometer environment and is in the process of convert the demonstration vehicle to the T2B2 configuration. Demonstration of T2B2 at the tailpipe is slated for later this year. So far, Ruth noted, the new engine has achieved target engine-out emissions (EOE), performance and fuel economy; aftertreatment catalyst performance has met or exceeded the targeted conversion rates, enabling an increased allowance on engine out HC. The approach that Cummins and partners have taken features: Replacing the aluminium V8 gasoline engine and emission control system with smaller diesel (2.8-liter) and its emission control system (ECS) without a weight penalty. Cummins made extensive use of aluminium as well as space-saving design features for new engine weight control. The aluminum block and head is sandwiched between an iron backbone cam carrier and iron ladder frame base, firmly held with iron-to-iron bolts. Lightweight steel pistons provide reduced friction & compression height with increased power density. Cummins achieved its weight-neutral goal based on a gasoline engine with emission control system (ECS) weight of 514 lbs (233 kg); the new aluminum 2.8L diesel weighs 362 lbs (164 kg), while the ECS weighs 152 lbs (69 kg). Taking learnings from LTD and LDECC programs to utilize PCCI (pre-mixed charge compression ignition) and high charge flow operation. Low pressure EGR; Johnson Matthey’s Cold Start Concept (CSC) catalyst for cold start NO x & HC mitigation; an NH 3 gas system from Amminex ( earlier post ) for immediate reductant delivery; and a small engine running higher loads resulting in faster warm-up all contribute to reducing the fuel economy penalty for meeting the more stringent emissions target. Johnson Matthey’s new CSC stores HC and NO x at low temperatures with very high storage efficiencies, and also converts a significant portion of the stored HC/NO x during the warm-up period before the rest of the HC/NO x is thermally released from the catalyst. The HC/NO x release temperature in a cold start catalyst is high enough that the released HC/NO x can be further converted by the downstream catalytic components. In addition, the cold start catalyst also exhibits excellent CO, HC, and NO oxidation activity under normal lean conditions. Exhaust system configuration. SCR coated on filter (SCR-F) allows for close coupling of an SCR (selective catalytic reduction) function for fast light off. The Amminex direct ammonia delivery system (DADS) can further improve NO x conversion performance by reducing the time delay before NH3 introduction after cold start. DADS also allows for multiple NH 3 -dosing locations, which allows for the integration of additional under-floor SCR elements to mitigate infrequent regeneration adjustment factors (IRAF). Source: Cummins. Click to enlarge. The team has achieved T2B5 vehicle engine out emissions as well as T2B2 test cell engine out emissions when running dual loop EGR. Further, the first demo vehicle has demonstrated T2B5 with margin without the aid of the full dCSC and LP EGR, while maintaining fuel economy above the target. The work remaining will see the full engine move to Johnson Matthey for refinement of the CSC operation, and refinement of the overall aftertreatment control strategy. 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. Resources (DOE will publish Merit Review presentations on its website.). Michael Ruth (2014) “ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine” DOE 2014 Annual Merit Review, Project ACE061. Chen, H., Mulla, S., Weigert, E., Camm, K. et al. (2013) “Cold Start Concept (CSC): A Novel Catalyst for Cold Start Emission Control,” SAE Int. J. Fuels Lubr. 6(2):372-381 doi: 10.4271/2013-01-0535. Diesel Emissions Engines Fuel Efficiency'
Green Car Reports
JUNE 19, 2013
Downsizing", as it''s called, involves using a smaller engine to do the work of a larger alternative--usually through turbocharging--while enjoying the fuel efficiency benefits associated with its size. Noticed engines getting smaller recently? You''re not alone. Engineering firm Ricardo thinks this will continue, and not just in small
Green Car Congress
JANUARY 13, 2012
Volvo Car Corporation will rely on a powertrain strategy based on its new downsized 4-cylinder VEA (Volvo Environmental Architecture) engine platform ( earlier post ) and hybrids for the US market, said John Maloney, recently appointed President of Volvo Cars, US, in an interview at the Detroit Auto Show. The XC60 Plug-in Hybrid Concept was introduced at the Detroit Auto Show. Click to enlarge.
Green Car Congress
JULY 10, 2012
The new Advanced Elastoval II piston is lighter, delivers increased power outputs and can withstand the higher pressures that occur late in the combustion cycle of highly charged downsized engines. The new Advanced Elastoval II piston. Click to enlarge.
Green Cars News
NOVEMBER 19, 2012
One in ten people have downsized their car to smaller engined-model to save money of running costs, according to new research from Enterprise Rent-A-Car.
Green Car Congress
JULY 14, 2013
Volkswagen predicts fuel highway fuel economy will improve by up to 17% with the downsized engine. Technologies in the EA888 engine line. Click to enlarge. Among the important product changes for Volkswagen of America for the 2014 model year is the introduction of the EA888 1.8-liter turbocharged and direct-injection four-cylinder TSI engine, which will gradually replace the 2.5-liter five-cylinder naturally aspirated powerplant fitted to the Jetta, Beetle, and Passat models.
Green Car Reports
MARCH 19, 2013
Eight days from now, the 2014 Jeep Cherokee 4x4 crossover will be unveiled to the world at the New York Auto Show's media preview days. Jeep released the first photos and details of the 2014 Cherokee three weeks ago, and now it's served up a video to whet our appetites further. The video is meant to demonstrate the Cherokee's off-road
Green Cars News
MAY 13, 2010
In a partnership to be known as Rotrak, Torotrak’s variable speed traction drive will combine with Rotrex’s supercharging technology to help provide affordable engine downsizing technologies to the automotive industry. Tags: Green cars Latest news engine downsizing technology Rotrex supercharging technology Torotrak variable speed traction drive
Green Car Reports
FEBRUARY 8, 2017
Today, we look at why more SUVs and crossovers don't offer hybrid powertrains, Faraday Future scales back production plans, and three battery energy-storage sites come online in California, including one from Tesla. All this and more on Green Car Reports. See the Lucid Air electric luxury sedan hit the road in this new video. Bowing to what seems. Today in Car News
Green Car Congress
JANUARY 16, 2011
’s decision to cut stop producing the Colt subcompact there highlight the a downsizing trend in Europe for Japanese carmakers as the new-vehicle market there shrinks. The Nikkei writes that Daihatsu Motor Co.’s ’s withdrawal from new-vehicle sales in Europe and Mitsubishi Motors Corp.’s The EU market for new passenger cars declined by 5.5%
Green Car Reports
APRIL 23, 2012
Writing about the latest carmaker plans to add smaller, more efficient engines is now almost a weekly occurrence. Today's lucky winner is Jaguar, which took the occasion of the Beijing Auto Show to announce some future powertrain plans--including its first production four-cylinder engine since the late and unlamented X-Type sedan. More exciting
Green Car Congress
NOVEMBER 23, 2015
Steels hardened in this way are suited for use in components subjected to high mechanical and thermal loads in downsized, energy-efficient and low-emission engines of the future. Combustion engines still have potential to save energy and reduce emissions; a current trend is to use downsized engines of the same or even increased power. Diesel injection systems have to reach higher injection pressures and improved injection accuracies in order to meet the requirements of downsizing.
Green Car Congress
NOVEMBER 1, 2011
HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. HyBoost offers comparable performance to the conventional current 2.0L
Green Car Congress
SEPTEMBER 22, 2010
The need to reduce CO 2 emissions is leading to downsized engines, heavily boosted by turbo- or supercharging. Rotrak, the new 50:50 joint-venture between traction drive specialist Torotrak plc and centrifugal supercharger company Rotrex AS, will present a highly efficient supercharger system in a paper at the 15 th Supercharging Conference in Dresden on 24 September.
Green Car Congress
OCTOBER 2, 2014
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 and 1.4-liter units which are part of a new generation of engines from the Kappa family—meet growing demand for small capacity, turbocharged engines to reduce fuel consumption and CO 2 emission without compromising performance.
Green Car Reports
SEPTEMBER 14, 2017
emissions hybrid downsizing CAFE Fuel Economy Turbocharging EPA Ratings Corporate Average Fuel EconomyLately, automakers haven't been touting the rising fuel economy of new vehicles, but it has to continue rising to meet reductions in the legal levels of carbon emitted. While major strides in fuel economy have been made over the past five years, the complex engine technologies and other improvements turn out to have less effect in real-world.
Green Car Congress
MARCH 2, 2011
This marks Toyota’s first downsizing of its HSD technology. Yaris HSD concept. Click to enlarge.
Green Car Reports
JULY 26, 2017
emissions Future Cars downsizing Engines Fuel EconomyNot so many years ago, a 1.2-liter engine would only have been found in the U.S. in the smallest and least impressive of subcompact cars. It might have been a 3-cylinder, and certainly wouldn't have had even 100 horsepower. But times change, and engines of that size will soon be found even in the smallest of Mercedes-Benz luxury cars. DON'T MISS.
Green Car Reports
SEPTEMBER 7, 2011
Volvo isn’t the largest automaker in the world -- but it is one of the safest thanks to a long-standing passion about passenger and pedestrian safety dating back to when the company was founed nearly 85 years ago. But recently Volvo has developed a new passion to put alongside its aim to have no-one die as a result of a Volvo accident by the
Green Car Congress
APRIL 8, 2010
FEV’s 698 cm 3 Extremely Downsized Engine. will show its Extremely Downsized Engine (EDE) at next week’s 2010 SAE World Congress in Detroit. Click to enlarge. FEV, Inc.
Green Car Congress
SEPTEMBER 17, 2009
Downsizing entails the replacement of engine displacement with turbocharging. Audi has introduced a new low-displacement turbocharged gasoline engine in the A3 model line. Earlier post.) The 1.2L TFSI engine generates 77 kW (105 hp), with fuel consumption of 5.5 L/100km (42.8 mpg US); CO 2 emissions are 127 g/km (204 g/mile). The wholly redesigned 1.2 TFSI—which produces a specific power output of 87.7 hp per liter from 1,197 cc (73.05
Green Car Congress
MAY 20, 2012
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.
Green Car Reports
MAY 6, 2011
We tend to get a lot of "What car should we buy?" questions at GreenCarReports, and we'll usually respond with a list of questions to narrow down the choices. Recently, though, our high-school friend Sarah Sette in Baltimore sent the following note: We are car shopping, seriously this time. The 1996 Subaru Legacy wagon is sadly aging and we need
Green Car Congress
SEPTEMBER 7, 2011
The HyBoost project vehicle was revealed for the first time today at the Cenex Low Carbon Vehicle 2011 event hosted at Rockingham, UK, demonstrating a combination of high-impact, low-cost electrical systems which offer the prospect of radical engine downsizing using electric supercharger and energy capture and storage technologies within an otherwise conventional gasoline powertrain architecture. HyBoost demonstrator. Click to enlarge.
Green Car Reports
JUNE 18, 2015
Green EPA Ratings EcoBoost Fuel Economy downsizing motorcyclesHow are fuel-efficient are some of today's smaller cars? It turns out that they now actually equal the fuel economy of larger motorcycles--which is pretty amazing for a four-seat vehicle weighing more than a ton. Especially since the motorcycles returning comparable gas-mileage figures weigh about one-fifth as much. DON'T MISS: Auto Industry Doing.
Green Car Congress
MAY 31, 2011
Ricardo will assist Lifan Automobile Group based in Chongqing, China, with the development of a family of highly downsized gasoline engines capable of meeting future Chinese and international fuel economy and emissions regulations. range of naturally aspirated engines, while a premium high-boost DI version will provide even greater levels of downsizing by replacing products of up to 2.0L
Green Car Congress
MAY 23, 2009
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.
Green Car Congress
SEPTEMBER 5, 2011
The Volvo Car Corporation is introducing a new, downsized engine range consisting solely of four-cylinder gasoline and diesel engines. It proves that downsized engines can go hand in hand with our customers’ expectations on luxury and driving pleasure. The upcoming four-cylinder VEA (Volvo Environmental Architecture) engine range includes common rail diesels and direct injected gasoline engines.
Green Car Reports
MARCH 18, 2015
EcoBoost Turbochargers direct injection downsizing Fuel Economy EPA Ratings Back in 2009, Ford introduced what would become the backbone of its fuel-efficiency strategy: the EcoBoost line of efficiency-focused engines. Ford has used the smaller turbocharged, direct-injected engines in most of its models to improve its EPA fuel-economy ratings--even if high gas-mileage numbers aren''t always reflected in all buyers''.
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