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Developed for hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs), BorgWarner’s innovative Exhaust Heat Recovery System (EHRS) can improve fuel economy by up to 8.5% The EHRS enters production later this year for vehicles from a major North American automaker.
Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. liter four-cylinder engine, also suffered as its fuel economy dipped 22% from 42.5
Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.
Vehicle installed on the chassis dynamometer in the ORNL vehicle research laboratory. Oak Ridge National Laboratory (ORNL) staff have been performing vehicle research and testing in support of the fueleconomy.gov website. legal light-duty vehicles from 1984 to present. Brief summary of vehicle data. Speed increase.
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) for a vehicle of that size. Exhaust system configuration. Earlier post.).
The selected projects include 6 vehicle-related technologies and 2 hydrogen and fuel cell technologies, as well as new hydropower, heat pump, solar and manufacturing technologies. Vehicle technologies span a range from new Si/graphene Li-ion anode materials and composites for motor windings to diesel aftertreatment and advanced lubricants.
Engineers at Toyota have developed an approach to applying the Atkinson cycle—used in the engines in Toyota hybrids since 1997—for engines in conventional, non-hybrid vehicles. The Atkinson cycle with a high compression ratio is a common approach that hybrid vehicle engines use to enhance thermal efficiency.
million contract modification to apply the technology in its thermoelectric generator (TEG) for passenger cars to a similar program for heavy vehicles. The TEG technology, which converts waste heat from gas exhaust into electric energy and has the potential to improve passenger car fuel efficiency by as much as 5%. Click to enlarge.
GMZ Energy, a market leader in the development of high-temperature thermoelectric generation (TEG) solutions, has successfully demonstrated a 1,000W TEG designed for diesel engine exhaust heat recapture in a Bradley Fighting Vehicle. The US Military will soon begin testing GMZ’s 1,000 Watt TEG in a Bradley Fighting Vehicle.
Power management company Eaton has expanded its portfolio of valvetrain solutions for diesel off-highway vehicles to help OEMs reduce emissions and improve fuel economy. This technology enables precise valve lift control through HLA, coupled with engine braking capability, which in turn helps reduce emissions and improve fuel economy.
On-road heavy-duty vehicles are an essential part of the state’s economy. These vehicles are also significant sources of oxides of nitrogen (NO x ) and particulate matter (PM), contributing nearly 31% of all statewide NOx emissions as well as 26% of total statewide diesel PM emissions. Source: CARB.
liter, twin-turbo, inline, six-cylinder engine, named Hurricane, that delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many competitors’ naturally aspirated V-8 and boosted six-cylinder power plants. Stellantis revealed its new, 3.0-liter, of torque).
Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ). Engines Fuel Efficiency Vehicle Systems'
improvement in city fuel economy (24.5 Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. Hydrogen-enriched exhaust is routed to the intake. mpg) and a 9.2% 2014-01-1190.
l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 The resulting trajectory would reduce CO 2 emissions by half and increase fuel economy by more than 60% from 2016 through 2030. Starting from a baseline 26 mpg (9.04
Hyundai Motor Group has developed the first Continuously Variable Valve Duration (CVVD) technology to feature in future Hyundai and Kia vehicles. When the vehicle is maintaining a constant speed and requires low engine output, CVVD opens the intake valve from the middle to end of the compression stroke. kgm (265 N·m) of torque.
Ford says the engine can deliver up to 15% better fuel economy than comparable six-cylinder engines. Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter Two pivotal factors are the three-port integrated exhaust manifold cylinder head and a twin-scroll turbocharger.
The analysis used the Ohio State University EcoCAR, a student prototype PHEV, as the basis for the preliminary fuel economy evaluation. They then designed a quasi-static thermodynamic model of an Organic Rankine Cycle (ORC) optimized to fit the prototype vehicle. Exhaust gas exergy map of EcoCAR engine. —Skarke et al.
Excess heat and pressure from the exhaust gas are recaptured by the turbo-compound unit. Volvo’s new Dynamic Torque software constantly monitors vehicle performance and automatically determines the optimum torque level based on load weight and road grade. Additional ball bearings have been added to the Turbocharger to reduce friction.
The Cobra ( Co ntrolled B oosting for R apid Response A pplications) technology is aimed at off-road vehicles and on-road heavy goods and passenger vehicles exceeding 3.5 tonnes gross vehicle weight. Unlike a turbocharger, Cobra is not dependent on the exhaust gases flowing to do its work. Earlier post.)
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. By way of comparison: a conventional turbo system diverts part of the exhaust gas stream needed for the forced induction away from the turbine via a wastegate valve as a function of its operating state.
The automotive turbocharging industry will generate $12 billion in revenue by equipping 49 million vehicles with turbochargers annually by 2019, according to Honeywell Turbo Technologies’ 2014 Global Turbo Forecast. In addition to improving fuel efficiency, downsized turbocharged engines also reduce harmful exhaust emissions.
for XSE grade, which uses a dual-outlet exhaust). Most AWD grades have 202 hp, while the Camry XSE AWD grade has 205 hp with dual exhaust. A variable cooling system, variable oil pump and a cooled exhaust gas recirculation (EGR) system all contribute to the engine’s high thermal efficiency and outstanding fuel economy.
Jacobs Vehicle Systems, a leading manufacturer of heavy-duty diesel engine retarding systems and valve actuation systems, will introduce its new Cylinder Deactivation (CDA) technology to the European market at IAA Commercial Vehicles 2018 (Hannover, Germany, 20-27 September). can reduce or eliminate use of the intake throttle.
Future fuel economy standards will result in lower exhaust gas temperatures and limit the use of high-temperature SCR. Bartley of the Engine, Emissions and Vehicle Research Division and Assistant Professor Zachary J. SwRI and UTSA plan to develop a novel catalyst for low-temperature SCR to reduce emissions.
Better efficiency also means better reliability, economy as well as lower emission levels. The new Duramax engine uses an electric EGR valve for greater precision and a larger EGR cooler to further reduce recirculated exhaust gas temperature. The new cylinder block is also lighter, which contributes to improved vehicle efficiency.
When it comes to your ICE vehicle, you want it to be running at its best, and that includes having the right exhaust system. However, with all the different options, you may not know which one is right for your vehicle. Here are five tips to help you pick the right exhaust system: Exhaust for good looks & performance.
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.
Eaton’s new 4-speed transmission for heavy-duty electric commercial vehicles is the latest addition to its growing eMobility portfolio of electrified vehicle (EV) transmissions. Eaton has partnered with CALSTART to provide the heavy-duty truck market with a suite of emission-reducing and electric vehicle technologies.
Avalon HV continues to be the only full hybrid vehicle in the segment. Toyota estimates that the 2019 Avalon Hybrid will boost fuel economy by up to 10% over its MY 2018 predecessor, from 40 mpg (5.88 When driving normally, engine braking will slow the vehicle down when the driver lifts off from the accelerator pedal.
In a paper on the OBS presented at the SAE 2014 World Congress, the researchers suggested that potential applications include downsizing to increase fuel economy by ?10% The OBS system uses waste exhaust energy to effect the fuel separation and provides a simple and reliable means for managing the separated fuels. Background.
Fuel economy targets for the vehicle are 22.4 At the recent 2103 SAE World Congress, Cummins discussed key engine technology enablers—including air-handling, fuel system, and base engine design— and development of the combustion system that will help in achieving the target emission levels and fuel economy.
Intelligent Power Generation (IPG) will demonstrate the impact of Flameless Ceramic Turbine technology in UK electric vehicle (EV) charging infrastructure, following a £1-million contract from Highways England. IPG‘s flameless combustor uses the turbine exhaust and high heat transfer effectiveness through the IPG regenerator unit.
” One of our primary goals and objectives is to level the playing field for clean diesel vehicles. Do they receive HOV access for their improved fuel economy and ultra low emissions? Fuel cells are seen as hitting 1% by 2025; extended range electric vehicles, 3%; and battery-electric vehicles, 4%. Earlier post.).
US EPA fuel economy estimates are not yet available, however, other models equipped with this engine have seen a 25 – 30% improvement in fuel efficiency over their direct gasoline-powered counterparts. The system plays a significant role in the reduction of fuel consumption as well as exhaust emissions.
By 2020, Bosch expects to see new vehicle sales reaching some 110 million units worldwide, with 12 million of them with an electrical powertrain. Therefore, Bohr said, Bosch aims to develop lithium-ion batteries that will at least double the range of current electric vehicles and at half the cost per kilowatt-hour. Bernd Bohr.
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. —Karl Sievertsen, chief technology officer, Eaton’s Vehicle Group.
Eaton and Cummins also announced that their popular SmartAdvantage Powertrain package is being expanded to include applications for the ISX12 diesel engine and ISX15 SmartAdvantage applications up to 110,000 lb gross vehicle weight (GVW). SmartAdvantage ISX12. Click to enlarge. SmartAdvantage ISX12.
Promoting renewable energy and circular economy—including the shared use of vehicles and product design that supports reuse and recycling—will help maximize the benefits of shifting to electric vehicles, according to the report. —“Electric vehicles from life cycle and circular economy perspectives”.
This pairing features precise communication between the engine and transmission, as well as proprietary control logic to further enhance fuel economy. Peak fuel pressure of 2,500 bar at the injector tip allows for excellent fuel atomization and combustion, delivering improved fuel economy and low emissions. The MX-13 is PACCAR’s 12.9-liter
A fuel economy penalty was also observed for lower energy content E30 and E78 blends compared to both E10 fuels. Overall, this study provides valuable insights on the impacts of ethanol content and gasoline composition on the exhaust emissions from a current technology GDI FFV. The study found that higher ethanol blends—i.e.,
not a truck or SUV, and not a vehicle from BMW, Audi, Porsche or Mercedes-Benz) have until recently only had Volkswagen-brand cars as an option: Beetle, Golf, Jetta, Passat. of sales of the vehicle. Fuel economy background. The Cruze Diesel is identified by a discreet badge on the trunk. Click to enlarge. Earlier post.)
The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). One hybrid electric vehicle (HEV) equipped with a PFI engine was also used. SULEV30, ULEV50, ULEV70, and ULEV125).
Help Your Fuel Economy & the Environment. If you’re driving down the road and you notice a quiet car in front of you, you should know that the car’s exhaust system is doing its job. A well-maintained exhaust system is essential in making your ride safe and sound. What does a car exhaust do? Exhaust Manifold.
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