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Downsizing arrived in a big way at GM in 1977. In light of fuel prices, foreign competition that was smaller and more efficient, and a consumer base that was trending away from land yachts, GM downsized its full-size cars. After its ridiculously trimmed going away party, the downsizing would come for Eldorado the following year.
The Eldorado was Cadillac’s last model to downsize, after the rest of the brand bowed to the interests of fuel economy and cleaner styling in 1977. There was of course another big downsizing coming in just a few years, but nobody was focused on that yet. It was a short era where car ads had to wear disclaimers.
The Palisade still uses a V6 engine, but it has been downsized from 3.8 Fuel economy isn’t quite as good as some of the Palisade’s peers, coming in at 19 miles per gallon in the city, 25 mpg on the highway and 21 combined. liters for the 2026 model year. Those figures all fall by one mpg for all-wheel-drive Palisade models.
The US Environmental Protection Agency (EPA) and the US Department of Transportation (DOT) formally unveiled their joint proposal to set stronger fuel economy and greenhouse gas pollution standards for Model Year 2017-2025 passenger cars and light trucks. The 163 g/mile limit would be equivalent to 54.5 improvements. Earlier post.).
In Consumer Reports ’ latest survey , 35% of US respondents report driving fewer miles than they did a year ago. The survey, conducted by the Consumer Reports National Research Center, found that car owners were open to different ways of saving at the pump, from downsizing to looking at hybrids, electric cars, or models with diesel engines.
The team sees further potential for fuel economy improvement with engine downsizing. Estimated drive-cycle fuel economy and emissions—based on the single-cylinder 0.66L research engine efficiency and emissions maps—was 32.4 L/100km, respectively), with NO x emissions of 0.017 g/mile. Source: Wallner 2011.
A recent preliminary road test of the Raser Hummer H3E, an H3 converted with a range-extended electric powertrain ( earlier post ), demonstrated more than 50 miles of all-electric range. Battery range of this innovative vehicle was more than sufficient to exceed our performance target of 40 miles in all-electric mode. Jim Spellman.
l/100 km) over 8,387 miles (13,498 km), in a 25-day drive across all 24 EU contiguous countries. The car achieved an average 932 miles (1,500 km) on each tank of fuel, at a total fuel cost for the whole journey of just £459 (US$716). Earlier post.) Behind the wheel of a Honda Civic Tourer 1.6 liters per 100km) by more than 25%.
Major automotive suppliers see national fuel economy standards as important for long-term planning and investment and don’t want to see them altered by US policymakers, according to a first-of-its-kind industry survey commissioned by CALSTART and conducted by Ricardo Energy & Environment.
Port assisted direction injection (PDI)—a dual injection system for combining the benefits of port fuel injection (PFI) and direct injection (DI), and enabling a dual fuel system approach for high compression ratios and extreme downsizing on boosted engines. the dual injection system design with DI + PFI.
Growth is led by developing regions such as China, India, Africa and other emerging economies. Additionally, to achieve proposed fuel-economy targets, personal vehicles will need to be smaller and lighter than they are today. This edition of the annual Outlook marks the first extension of the long-term energy forecast to 2040.
Based on the results of the study, CAR believes the economic risk to the auto industry connected to mandating permanent fuel economy standards in the long run is “ very serious ” The group recommends periodic review to assess the rate of technology development and cost reduction of advanced technologies leading up to 2025.
2021) over a 150,000-mile vehicle lifetime, but that further work must be done to address achieving the more stringent 1 mg/mi target (LEV III in 2025). Homogeneous GDI provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Earlier post.) Emissions began at 3?4
Fuel efficiency improvements were recorded in homologated conditions and during test drives of the first prototype vehicle, for a typical commuter distance of 55 km (34 miles) on a combination of motorway, city roads and rural roads, in and around Cologne, Germany. Even for an aggressively downsized engine such as the 1.0-liter
The Tucson ix FCEV can travel more than 400 miles (644 km) on a single fueling, a 76% improvement over its predecessor, and a range equal to a gasoline-powered car. In addition to improving the fuel economy and range of the powertrain, Hyundai has also created a more compact power source for the Tucson ix FCEV. fuel economy.
The analysis used the Ohio State University EcoCAR, a student prototype PHEV, as the basis for the preliminary fuel economy evaluation. Internal combustion engines have been significantly improving in the past decade, after the adoption of technologies such as Gasoline Direct Injection, mild electrification, downsizing and turbocharging.
To address this request, the NRC formed the Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy. Further, the benefits of some technologies are not completely represented in the tests used to estimate corporate average fuel economy (CAFE).
The testing process compares fuel economy performance from the vehicle in its original condition with the performance using XL Hybrids’ charge-sustaining hybrid system. Our own components have a 3 year, 75,000 mile hybrid system warranty. The company had been targeting a 20% reduction. engine and 6-speed transmission. kWh, Ashton said.
Following that milestone, the company is targeting reduction to a subsequent 1/10 through scales of economy resulting from increasing mass production. Toyota is simplifying the design of its stack, resulting in downsizing and downweighting, and reducing the amount of platinum catalyst required.
Bottom: Total particle-phase PAH emissions, expressed in ng/mile, for both test vehicles over the LA92 cycle. The found that using a GPF did not show any fuel economy and CO 2 emission penalties, while the emissions of total hydrocarbons (THC), carbon monoxide (CO), and nitrogen oxides (NOx) were generally reduced. Yang et al.
To develop the ranking, UCS averaged the per-mile emissions for each light-duty vehicle sold by each automaker. To determine GHG emissions, UCS considered the fuel economy, fuel type, and sales volume of each type of vehicle sold by each automaker in the 2013 model year (MY2013). Source: UCS. Click to enlarge. Methodology.
Yesterday, the US Environmental Protection Agency (EPA) and the National High Traffic Safety Administration (NHTSA) jointly established increasingly stringent greenhouse gas emission standards under the Clean Air Act for 2012 through 2016 model-year vehicles and fuel economy standards under the Corporate Average Fuel Economy program, respectively.
Based on test work already carried out, Ricardo estimates that a fuel economy improvement of up to 30% is possible with no loss of power or performance, using a downsized EBDI engine in place of currently available gasoline powertrain technology. fuel economy improvement. liter EBDI engine—resulting in up to a 16.8%
of torque at 4,000 rpm, with a targeted combined fuel economy of 28 mpg with front-wheel drive. A multi-disc and individually controlled hydraulic channel torque converter improves responsiveness by expanding the direct connection band, while a downsized oil pump and double ball bearings minimize frictional losses.
Using current battery performance and cost, they evaluated PHEVs and EVs across a range of scenarios and configurations—which including 10-, 20- or 40-mile all electric range, with low or high electric power, with or without battery replacement, and with or without opportunity charging.
A comparison of the benefits of two different cylinder deactivation operating strategies for downsized 3-cylinder engines such as the 1.0L Even for an aggressively downsized engine such as the 1.0-liter liter EcoBoost, a significant improvement in vehicle fuel economy could be found by exploiting cylinder deactivation.
Gasoline direct-injection (GDI) engines have higher fuel economy compared to the more widely used port fuel injection (PFI) engines. For our fleet, increases in the fuel economy of 1.6% (0.5−2.4%; increase in fuel economy between PFIs and GDIs. engine calibration (spark timing, valve timing, etc.), —Saliba et al.
mpg and 199 g/mile CO 2 in 2026. These innovative technologies include catalytic and evaporative emissions controls, advanced fuel injection, downsized GDI engines, turbochargers, cooled-EGR systems, dynamic cylinder deactivation, OBD systems as well as hybrid and fuel cell powertrain systems, batteries, electric components and controls.
liter engine, with high-efficiency combustion, cooled EGR and an optimized ITMS cooling system, features 187 horsepower at 6,100 rpm and 178 lb-ft (241 N·m) of torque at 4,000 rpm, with an EPA-estimated combined fuel economy of 29 mpg with front-wheel drive and 26 mpg with all-wheel drive. The new Smartstream 2.5-liter
liter Atkinson-cycle four-cylinder gasoline engine, significantly downsized from the previous 2.5-liter This powertrain is anticipated to deliver best-in-class fuel economy of 47 mpg (5.0L/100km) Fusion Hybrid also features an all-new 2.0-liter liter unit while maintaining performance standards.
The ICCT team—John German and Aaron Isenstadt—concluded that diesels have and will retain two significant advantages over gasoline engines: significantly better fuel economy and cargo hauling and towing ability. miles per gallon in model year 2016, and 49.1 miles per gallon in model year 2016, and 49.1
Daimler Trucks North America’s (DTNA) SuperTruck program has achieved 115% freight efficiency improvement (gallons of fuel consumed per ton of goods moved per mile traveled)—surpassing the Department of Energy (DOE) program’s goal of 50% improvement and exhibiting the best results of all reporting OEMs. Click to enlarge. Earlier post.)
This downsizing concept coupled with energy recuperation and stop-start technologies from the Audi modular efficiency platform give them fuel consumption ranging from 3.8 The newly developed four-cylinder exemplifies the Audi’s downsizing strategy of substituting turbocharging for volume. mph) and offers fuel economy of 3.8
In recent tests, the DuoDrive taxi demonstrated a 56% improvement in fuel economy compared to a standard London Taxi (TX2), and simulations predict that an improvement of 100% is possible with further optimization. The demonstrator uses a 5 kWh Li-ion battery pack from LiFeBATT, providing an electric range of 15 miles.
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. They assumed a baseline fuel economy of 21.4 They assumed a baseline fuel economy of 21.4 Click to enlarge.
The resulting higher BMEP levels allow downsizing of the engine at equivalent vehicle performance. The vehicle owner will realize high fuel economy because gasoline, with its greater eating value per volume, is the fuel that is primarily used for most driving modes. Earlier post.)
On 15 Sep, NHTSA and the US EPA proposed a joint rulemaking on fuel economy and greenhouse gas emissions for light duty vehicles: an average new car 34.1 The 250 g/mile of CO 2 equivalent emissions limit by EPA is equivalent to 35.5 Turbocharging and downsizing: 26% for cars, 15% for trucks. Earlier post.) Technologies.
3 B-Cycle gasoline engine is the first example of Volkswagen’s “Rightsizing” strategy—an engine development strategy that looks to for the optimal balance of displacement, output, torque and efficiency based on vehicle class and real-world operating conditions, rather than just seeking to downsize. Fuel economy city/hwy/comb.
This concept system is expected to be ideal for heavily downsized applications and developing markets. million km [994,000 miles]. At the same event, Delphi also revealed a new common rail system for small, one- to four-cylinder diesel engines, including non-automotive applications. New high pressure heavy duty common rail systems.
Combining the cylinder head, exhaust manifold and intercooler with variable wastegate control enhances low speed torque fuel economy. To keep the engine oil clean, the intake system creates a syphon which draws carbon vapors away from the crankcase allowing for 10,000 miles between oil changes similar to aspirated engines.
Volvo Trucks North America unveiled an innovative SuperTruck demonstrator whose combination of advanced vehicle and powertrain technologies achieved a freight efficiency improvement of 88% and boosted fuel efficiency by 70%, exceeding 12 miles per gallon in road tests. Click to enlarge. Earlier post.).
Hyundai began the US rollout of the 2016 Hyundai Sonata Plug-in Hybrid Electric Vehicle (PHEV) ( earlier post ) and its conventional hybrid sibling (HEV) with a series of media drives in California—one of the main markets for the PHEV, which offers some 24 miles (38.6 Combined fuel economy (mpg). All-electric range (miles).
Employing original Honda technologies, the fuel cell stack for this model was downsized by 33% compared to the previous version of the fuel cell stack yet delivers 130 kW of output, with an output density of 3.1 Cost, productivity, efficiency and fuel economy now offer the highest focus for technology investment, he said.
Because the high-voltage battery is both power and energy dense, engineers were able to use the downsized gasoline engine to maximize fuel economy and reduce emissions. The Coasting Guide aims at maximizing fuel economy by essentially coaching the driver on when to coast and brake. A compact and lightweight 1.56-kWh
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