EPA Proposes New Emissions Standards For Light & Heavy Duty Vehicles
CleanTechnica EVs
APRIL 13, 2023
New exhaust emissions rules from the EPA seek to dramatically lower carbon, particulate, and nitrogen oxide emissions from vehicles.
Eaton and Tenneco partner to produce new, integrated exhaust thermal management system to meet coming lower NOx standards
Green Car Congress
MARCH 29, 2021
Power management company Eaton and Tenneco announced a joint development agreement between Eaton’s Vehicle Group and Tenneco’s Clean Air business group to produce an integrated exhaust thermal management system that will enable commercial truck and light vehicle manufacturers to meet upcoming emissions regulations.
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2020 Chevrolet Silverado 1500 with new diesel delivers EPA-estimated 33 mpg highway; driver-selectable stop/start
Green Car Congress
JULY 26, 2019
Duramax turbo-diesel engine delivers an EPA-estimated 33 mpg highway and 23 city in rear-wheel-drive models. EPA-estimated fuel economy for four-wheel drive models is 29 mpg highway/23 city. The exhaust brake, which is available in tow-haul mode, can provide additional driver confidence when towing, especially when going downhill.
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Australia introduces its first exhaust rule but makes all the mistakes the US did
Baua Electric
MARCH 26, 2024
While both of these numbers are a lot less than the US’ new EPA rules , the US also has 13x as many people as Australia. The US EPA has long had what is referred to as a “ footprint rule, ” which allows larger vehicles to pollute more. This will result in 321 million fewer tons of carbon emissions in Australia by 2050.
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EPA and CARB charge Fiat-Chrysler with using undeclared emission control devices in 3.0L diesels
Green Car Congress
JANUARY 12, 2017
The US Environmental Protection Agency (EPA) issued a notice of violation ( NOV ) to Fiat Chrysler Automobiles N.V. EPA is working in coordination with the California Air Resources Board (CARB), which has also issued a notice of violation to FCA. EPA and CARB have both initiated investigations based on FCA’s alleged actions.
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NREL study probes emissions impact of butanol-gasoline blends in light-duty vehicles
Green Car Congress
NOVEMBER 26, 2013
Results of a study led by a team from the National Renewable Energy Laboratory on the impact of butanol-gasoline blends on light-duty vehicle emissions suggest that widespread deployment of n-butanol or i-butanol in the gasoline pool could result in changes to the estimated emissions of alcohols and carbonyls in the emissions inventory.
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EPA issues a second notice of violation to Volkswagen alleging emissions cheating in MY 2014-2016 3.0L diesels
Green Car Congress
NOVEMBER 2, 2015
EPA issued a second notice of violation ( NOV ) of the Clean Air Act (CAA) to Volkswagen AG, Audi AG and Volkswagen Group of America, Inc., liter engines for model years (MY) 2014 through 2016 that results in increased NO x emissions of up to nine times EPA’s standard. alleging emissions cheating. Earlier post.).
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455 hp 2014 Corvette Stingray to deliver EPA-estimated 29 mpg highway
Green Car Congress
JULY 9, 2013
The 2014 Corvette Stingray will deliver up to an EPA-estimated 17 mpg US (13.8 For Stingrays equipped with the seven-speed manual transmission, Eco mode enables Active Fuel Management, which disables four of the cylinders for improved fuel economy during light engine loads. l/100 km) in the city, and 29 mpg (8.1 Earlier post.).
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Ford study shows Rankine waste heat recovery system on a light-duty vehicle could almost meet full vehicle accessory load on highway cycle
Green Car Congress
OCTOBER 9, 2011
The Rankine cycle is widely used used commercially to generate power in stationary power plants, and is under consideration as a potential waste heat recovery system for use in both light-duty (BMW, earlier post ; Honda, earlier post ) and heavy-duty ( earlier post ) applications. on the highway cycle and 0.513 on the city cycle.
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DHE begins piloting Volvo VNR Electric heavy-duty trucks in SoCal fleet
Green Car Congress
SEPTEMBER 11, 2020
Deployed as part of the Volvo LIGHTS (Low Impact Green Heavy Transport Solutions) project, the Volvo VNR Electric trucks will operate in a pilot project through the end of 2021 to demonstrate the ability for battery-electric trucks to successfully transport goods in DHE’s daily routes. Earlier post.).
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EPA Proposes to Streamline Approval Process for Fuel Conversion Systems
Green Car Congress
MAY 7, 2010
The US Environmental Protection Agency (EPA) is proposing to make it easier for manufacturers to gain approval to sell fuel conversion systems. The proposed rule would cover conversions of light-duty vehicles and heavy-duty highway vehicles and engines, and would apply to all clean alternative fuels. Vehicle/Engine Age.
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ICCT-sponsored study of in-use testing of 3 Tier2-Bin5, CA LEV-II light-duty diesels finds wide variation of emissions against the limits
Green Car Congress
JUNE 2, 2014
In-use testing of three light duty diesel vehicles—certified to US-EPA Tier2-Bin5 and California LEV-II ULEV emissions limits— found a wide variation in real world emissions performance relative to the regulatory limits. diesels and one 3.0L diesel) over pre-defined test routes exhibiting diverse driving conditions.
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EPA updates rules to ease commercialization of alternative fuel conversion systems
Green Car Congress
MARCH 30, 2011
The US Environmental Protection Agency (EPA) has updated rules making it easier for manufacturers to sell fuel conversion systems—i.e., The updated final rule covers alternative fuel conversion of light-duty vehicles and heavy-duty highway vehicles and engines. Exhaust, Evap, and OBD testing. Certification application.
Achates Power developing light-duty two-stroke opposed-piston diesel engine: the OP4
Green Car Congress
APRIL 17, 2013
The OP4 light-duty opposed-piston diesel. Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty diesel concept engine, the OP4. Light-duty OP4. In catalyst light-off mode, the OP4 showed a NO x flow rate of 0.9
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EPA Report: data show automakers on track in meeting Greenhouse Gas Standards after first year
Green Car Congress
APRIL 26, 2014
On Friday, the US Environmental Protection Agency (EPA) released a Manufacturers Performance Report that assesses the automobile industry’s progress toward meeting greenhouse gas (GHG) emissions standards for cars and light trucks in the 2012 model year—the first year of the 14-year program. A note on methodology and values.
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SwRI’s ECTO-Lab expands; new bench systems improve accelerated aging of emissions control systems
Green Car Congress
SEPTEMBER 23, 2020
Southwest Research Institute (SwRI) has added two test stands to its Exhaust Composition Transient Operation Laboratory — ECTO-Lab. This Environmental Protection Agency-approved method predicts the useful life of emission control systems for light-duty vehicles.
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EPA Releases New Auto Emissions Rule
CleanTechnica EVs
MARCH 20, 2024
The EPA released it final rule on exhaust emissions from cars and light duty trucks this week. The post EPA Releases New Auto Emissions Rule appeared first on CleanTechnica. Not everyone is happy.
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Cummins introduces 5L V8 diesel for North American light- and medium-duty commercial vehicles
Green Car Congress
OCTOBER 4, 2013
a new 5-liter V8 diesel engine designed to power pickup-and-delivery vehicles, other light- and medium-duty trucks, school buses and motorhomes. will serve customers in the United States and Canada, and will be certified to US EPA 2013 NO x and PM emissions levels. The new ISV 5.0 Click to enlarge. Cummins Inc. introduced the ISV5.0,
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Next-Gen Ford Fiesta St with new 200 PS 3-cylinder, 1.5L Ecoboost with 3 drive modes; cylinder deactivation
Green Car Congress
FEBRUARY 24, 2017
Drive Modes will also adjust Fiesta ST’s Electronic Sound Enhancement (ESE) technology and active exhaust noise control valve. In Sport mode, engine mapping and throttle pedal response are sharpened, and EPAS settings adjusted to deliver more feedback and finer control for fast road driving.
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207 Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected
Green Car Congress
MAY 4, 2016
A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. Most emission inventory calculations use a computer model to estimate the fleet’s emissions. 6b00717.
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150 ICCT: incremental technology can cut vehicle CO2 by half and increase fuel economy >60% through 2030 with ~5% increase in price
Green Car Congress
MARCH 22, 2017
ICCT’s paper builds on the modeling and peer-reviewed research underlying the Technical Assessment Report produced by the EPA and the National Highway Traffic Safety Administration (NHTSA) as part of a midterm review of the fuel-economy regulation. EPA found cylinder deactivation CO 2 benefits of 3.5%–5.8%
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Toyota boosts 2023 Corolla Hybrid; starting MSRP $1,250 lower than 2022 Corolla Hybrid
Green Car Congress
OCTOBER 19, 2022
The revised hybrid system boosts output to 134 hp (up from 121) and 156 lb-ft (212 N·m) of torque (up from 146 lb-ft / 200 N·m), while EPA-estimated combined fuel economy reaches 47 mpg. The EPA combined fuel economy rating is 44 mpg. The upgraded hybrid system improves acceleration and mid-range power. The 2ZR-FXE 1.8-liter
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2015 VW Jetta TDI: a more refined, powerful and efficient diesel within a nicely redesigned model line
Green Car Congress
OCTOBER 7, 2014
TDI Clean Diesel EA288 engine ( earlier post ) with an EPA-rated highway fuel economy rating of 46 mpg with the manual transmission (45 mpg automatic). In other words, there is not a separate intake or exhaust camshaft. This means we have on the one camshaft one intake valve and one exhaust valve. Top: Valve layout.
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262 A closer look at the basics of Volkswagen Group’s important new 2.0L diesel MDB engine
Green Car Congress
MARCH 22, 2014
liter diesel, prominently showing the closely attached exhaust aftertreatment system. For example, depending on the emission requirements, 3 different types of exhaust gas recirculation (EGR ) can be used: cooled high-pressure EGR without low-pressure EGR; cooled low-pressure EGR without high-pressure EGR; or. The exhaust side systems.
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SwRI launches Particle Sensor Performance and Durability consortium
Green Car Congress
APRIL 3, 2012
Sensors that trigger engine malfunction illumination light (MIL) or a fault code when particle emissions exceed a certain threshold downstream of an exhaust diesel particle filter (DPF) will soon be required to meet California Air Resources Board (ARB) and US Environmental Protection Agency (EPA) on-board diagnostics (OBD) regulations.
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2015 Chevrolet and GMC pickups, SUVs to offer eight-speed transmission with EcoTec3 V-8
Green Car Congress
JULY 18, 2014
It is a dual-equal cam phasing system that adjusts camshaft timing at the same rate for both intake and exhaust valves. It also provides another effective tool for controlling exhaust emissions. The vane phaser is actuated by hydraulic pressure and flow from engine oil, and managed by a solenoid that controls oil flow to the phaser.
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210 Mazda debuts CX-5 crossover with full SKYACTIV technologies for North America at LA Auto Show
Green Car Congress
NOVEMBER 17, 2011
With its 4-2-1 exhaust system, the 2013 CX-5 delivers 155 hp (116 kW) at 6,000 rpm; torque is measured at 150 lb-ft (203 N·m) at 4,000 rpm and redline is reached at 6500 rpm. Estimated EPA fuel economy for the CX-5 is 26 city/33 highway (9.04 Click to enlarge. The 2013 CX-5 features a SKYACTIV-G 2.0-liter L/100km, respectively).
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ORNL researchers quantify the effect of increasing highway speed on fuel economy
Green Car Congress
JANUARY 18, 2013
This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal legal light-duty vehicles from 1984 to present. Footnotes. [ Thomas, H-L.
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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective
Green Car Congress
FEBRUARY 5, 2020
Source of data: US EPA (2019). EPA is targeting implementation in the 2027 timeframe while CARB is focusing efforts on phasing in more stringent standards in 2024 and again in 2027 with the hope of aligning with EPA as a national standard. Chart: MECA.
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Achates Power wins $9M from ARPA-E to develop gasoline compression ignition medium-duty multi-cylinder opposed-piston engine
Green Car Congress
NOVEMBER 24, 2015
The unthrottled nature of the compression ignition process provides high engine efficiency while achieving compliant exhaust emissions with conventional, low-cost aftertreatment. The Achates Engine is EPA 2010 and Euro VI compliant. Broadly, this approach is termed Gasoline Compression Ignition (GCI). Earlier post.). Earlier post.)
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GM to introduce strong hybrid version of Malibu; combined fuel economy above 45 mpg; leverages Volt
Green Car Congress
MARCH 25, 2015
The engine also features Chevrolet’s first application of Exhaust Gas Heat Recovery, or EGHR, technology, which uses exhaust heat to warm the engine and cabin. Additional fuel economy benefits come from Exhaust Gas Recirculation, or EGR. An 80-cell, 1.5 kWh lithium-ion battery pack provides electric power to the Hybrid system.
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GM Introducing US Version of Chevrolet Cruze at LA Auto Show; Up to Estimated 40 mpg Highway
Green Car Congress
NOVEMBER 29, 2009
I-4 turbo with variable valve timing that delivers up to an estimated 40 mpg (EPA ratings pending) on the highway with a high-efficiency model. Enhanced with its exhaust-driven turbocharger, the Cruze’s Ecotec 1.4L overhead camshafts, four-valves per cylinder, double continuously cam phaser intake and exhaust (DCVCP).
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210 EC sets out strategy to cut CO2 emissions from heavy-duty vehicles; short-term focus on measurement and reporting
Green Car Congress
MAY 21, 2014
While light-duty CO 2 emissions are already being addressed by recent EU legislation, the new “Strategy for reducing Heavy-Duty Vehicles’ fuel consumption and CO 2 emissions” marks the European attempt to address emissions from HDVs. Without action, HDV emissions in 2030-2050 are projected to remain close to current levels.
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2024 Dodge Charger Daytona: the ‘Brotherhood of Muscle’ goes electric – Charged EVs
Baua Electric
MARCH 5, 2024
In that light, it’s the logical follow-up to the previous Charger, which ran for an astounding 18 model years over two generations. The spec sheet projects EPA range ratings at 317 miles for the Daytona R/T and 268 miles for the Scat Pack version. Exhaust noise? It’s designed for ultimate performance.” And the Daytona’s range?
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52 Jaguar bringing XE diesel to US in 2016
Green Car Congress
APRIL 29, 2015
Mated with the eight-speed automatic transmission, the Jaguar XE 20d will be the brand’s most fuel efficient model (EPA figures to be released at later date). Variable exhaust valve timing enables more rapid catalyst heating, thereby minimizing harmful emissions during the critical warm-up phase.
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Cummins and Chrysler Extend 6.7L Turbo Diesel Supply Agreement
Green Car Congress
FEBRUARY 3, 2010
This 118% increase in horsepower and 86% increase in torque have been achieved while also reducing exhaust emissions by 90 percent. In 2007, Dodge and Cummins produced the cleanest heavy-duty diesel pickup in the market by meeting US Environmental Protection Agency (EPA) 2010 emissions levels a full three years in advance.
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New GM EcoTec3 engine family for 2014 Silverado and Sierra pickups; direct injection, cylinder deactivation and CVVT
Green Car Congress
DECEMBER 13, 2012
SAE-certified horsepower and torque ratings and EPA fuel economy estimates for the new Silverado and Sierra will be available beginning early next year. To further enhance combustion, the intake and exhaust valve positions have been switched from previous versions, and the valves are now slightly canted toward the cylinder centerline.
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218 New Gen 6 Camaro lighter, leaner, faster, more efficient; base 2.0L, 4-cylinder entry-level engine
Green Car Congress
MAY 17, 2015
liter straight-6 engine rated at 140 hp (104 kW) (pre-EPA emission requirements); in other words, over 50 years, the entry-level engine has shrunk by 48% displacement and gained 96% in power, while cutting NO x emissions, as an example of criteria pollutant reduction, by likely more than 97% (from above 3.1 g/mi (EPA Tier 2).
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150 2017 Chevrolet Colorado updated with all-new V-6 and class-exclusive 8-speed automatic; cylinder deactivation
Green Car Congress
AUGUST 27, 2016
The Colorado is currently the most fuel-efficient pickup truck in America, with an EPA-estimated 31 mpg highway when equipped with the diesel engine. According to Stan Ludlow, chief engineer for the 2017 Colorado, the engine and transmission were calibrated to emphasize performance and refinement while optimizing fuel economy.
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150 GM: new Sierra 5.3L V-8 EcoTec3 highway fuel economy tops Ford EcoBoost V-6
Green Car Congress
APRIL 1, 2013
EcoTec3 V-8 engine ( earlier post ) equipped with direct injection, cylinder deactivation (AFM) and variable valve timing to achieve EPA estimates of 16 mpg city (14.7 Source: GM, Ford, Model Year 2013 EPA Fuel Economy Guide. The 2014 GMC Sierra 1500 full-size pickup truck features a new 5.3L l/100 km) and 23 highway (10.2 EcoTec3 V-8.
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Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done
Green Car Congress
OCTOBER 16, 2013
As reported in a paper in ACS journal Environmental Science & Technology , the results showed that GDI technology has the potential to meet the upcoming California LEV III and US EPA Tier 3 PM mass standard of 3 mg/mi (phasing in over MY2017?2021) Schematic diagram of test vehicle engine & exhaust system and PM sampling systems.
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Aptera Motors shuts down, effective today; cites lack of private sector investment to match DOE commitment
Green Car Congress
DECEMBER 2, 2011
Aptera executives had been engaged in exhaustive due diligence with the Department of Energy (DOE) pertaining to an ATVM (Advance Technology Vehicle Manufacturing) loan. The Aptera formula: aerodynamics plus light weight design (through composites) delivered efficiency of 206 EPA miles per gallon in tests at Argonne National Labs.
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239 Ford Unveils Ford Fiesta for North America at Los Angeles Auto Show; 1.6L I4 with Ti-VCT Delivers Estimated 40 mpg Highway
Green Car Congress
DECEMBER 2, 2009
Ti-VCT gives precise, variable control of valve overlap; such valve overlap management is critical to eliminating intake and exhaust flow compromises. Pistons are cast aluminum, as well, with the light weight helping to reduce reciprocating mass and adding to fuel efficiency. In addition, EPAS enables Active Nibble Cancellation.
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199 New 450hp Small Block V8 for 2014 Corvette features direct injection, cylinder deactivation, continuously variable valve timing
Green Car Congress
OCTOBER 24, 2012
It will also deliver the most fuel-efficient Corvette ever, exceeding an EPA-estimated 26 mpg US (9.0 The application of GM’s Active Fuel Management (AFM) cylinder deactivation system is the first on Corvette; it shuts down half of the engine’s cylinders in light-load driving. Four-into-one exhaust manifolds. Click to enlarge.
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