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The federal subsidy significantly favors larger battery packs to a stronger degree than their potential for additional gasoline savings. A 2011 paper by Michalek and colleagues found that strategies to promote adoption of HEVs and PHEVs with small battery packs offer more social benefits (i.e., Peterson and Michalek 2012.
A study based on a spatial and longitudinal travel dataset by a team from Lamar University, Iowa State University and Oak Ridge National Laboratory found that whether plug-in hybrids (PHEVs) have lower energy costs that conventional gasoline vehicles (CGVs) or hybrid-electric vehicles (HEVs) depends on charger coverage.
In a paper being presented at WCX SAE World Congress Experience in Detroit this week, a team from MIT is proposing the use of a flex-fuel gasoline-alcohol engine approach for a series-hybrid powertrain for long-haul Class 8 trucks. —Daniel Cohn. The research was supported by the MIT Arthur Samberg Energy Innovation Fund.
Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. The OSU EcoCAR PHEV powertrain.
million over three years as part of an $80-million Co-Optima funding round ( earlier post ) to conduct research and development for an advanced mixed-mode gasoline (spark/compression ignition) engine to attain significant improvements in both fuel economy and CO 2 emissions.
Households with plug-in hybrid vehicles (PHEVs) and smart meters actively managed how, when and where they charged their cars based on electricity rates but rarely took advantage of online feedback, according to a two-year study by a team at the University of Colorado Boulder’s Renewable and Sustainable Energy Institute ( RASEI ).
Net emissions resulting from the use of plug-in hybrid electric vehicles (PHEVs) depend on the efficiency of the conventional vehicle fleet; PHEV CD (all-electric, charge-depleting mode) efficiency; charging strategy; battery pack capacity; driving patterns; and generator mix used for charging. Scott Peterson, J. emissions.
Researchers at the University of Waterloo (Canada), with a colleague in Sweden, have used a power management strategy greatly to extend the durability of onboard fuel cells in a plug-in hybrid electric vehicle: an increase of 1.8, Architecture of FC-PHEVs with three fuel cell stacks as considered in the Zhang et al. —Zhang et al.
In a new study published in the journal Applied Energy , Carnegie Mellon University (CMU) researchers found that controlled charging of plug-in hybrid electric vehicles (PHEVs) reduces the costs of integrating the vehicles into an electricity system by 54–73% depending on the scenario.
The 2011 Shell Eco-Marathon Americas—a challenge for high school, university, and college students from across North and South America to design vehicles to go the farthest distance using the least amount of energy—has expanded its categories to include plug-in electric vehicles (PHEVs).
A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours. The results are less clear in Dallas and Houston.
One of SDG&E’s converted PHEVs. The third phase of a SDG&E multi-year in-use study on plug-in hybrid electric vehicles showed that plug-in hybrids offer significant improvements in gas mileage and reductions in emissions when compared with standard hybrid-electric and gasoline internal combustion engine (ICE) vehicles.
Researchers at Carnegie Mellon University (CMU) constructed an optimization model to determine the optimal vehicle design and allocation of conventional, hybrid, and plug-in hybrid vehicles to drivers in order to minimize life cycle cost, petroleum consumption, and GHG emissions. gal gasoline, $0.11/kW gal gasoline, $0.11/kW
Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. million vehicles and would have increased by 3 tpd from power plants.
Researchers at Argonne National Laboratory, with colleagues from Lawrence Berkeley, Oak Ridge, and National Renewable Energy labs, and the University of Tennessee, have published a comprehensive analysis of the total cost of ownership (TCO) for 12 sizes of vehicles ranging from compact sedans up to Class 8 tractors with sleeper cabs.
Strategies to promote adoption of hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs) with small battery packs offer more social benefits (i.e., Although gasoline production and combustion produce significant emissions, battery and electricity production emissions. Michalek and colleagues. Michalek et al.
Fleet penetration of PHEV by 2020 in different scenarios. The first character of the scenario represents the price of gasoline at simulation termination, the second represents “yes” or “no” on a manufacturer subsidy, and the third represents “yes” or “no”on a sales tax exemption. Consumer response under a gasoline price shock.
WTW GHG emissions of vehicles across driving patterns and PHEV charging scenarios. Solid portions represent GHG emissions associated with gasoline propulsion. coal, hydro, natural gas) on well-to-wheel (WTW) energy use and greenhouse gas (GHG) emissions of plug-in hybrid electric vehicles (PHEVs). Credit: ACS, Raykin et al.
A team of researchers from Carnegie Mellon University has analyzed the impact of plug-in hybrid electric vehicle (PHEV) battery pack size on fuel consumption, cost and greenhouse gas emissions over a range of charging frequencies (distance traveled between charges). Shiau et al. 2009) Click to enlarge.
The Axon Automotive PHEV. UK-based Axon Automotive, a spin-off from Cranfield University, previewed a pre-production plug-in hybrid electric vehicle (PHEV) version of its lightweight city car at the Milton Keynes Science Festival. The Axon 8080 gasoline city car was released at the 2008 Eden Car Show. Click to enlarge.
By focusing on the implementation of an extremely pragmatic and synergistic mix of powertrain electrification using available and near-market technologies, we have already shown in the HyBoost project the very significant and cost-effective benefits that can be achieved in a gasoline powertrain and 12+X volt electrification.
These include high-pressure common-rail diesel engines; gasoline direct injection; homogeneous combustion; turbo technology; and advanced electronic control technology research and development. International cooperation.
These are capable of producing twice the power and torque of any electric motor-generator currently in production, JLR said, and can be inserted between any engine and transmission to create MHEV or PHEV, or used alone for a BEV. Concept_e PHEV. Click to enlarge.
A US-wide county-level study comparing lifecycle greenhouse gas (GHG) emissions from several light-duty passenger gasoline and plug-in electric vehicles (PEVs) has found that PEVs can have larger or smaller carbon footprints than gasoline vehicles depending on regional factors and the specific vehicle models being compared.
Direct land use, life cycle GHG emissions (excluding indirect land use change), and life cycle fossil fuel requirements to generate the transportation services provided by 17.8 × 10 12 MJ NCV of gasoline, the amount used in transportation in the US in 2009. 80% relative to gasoline ICVs. Credit: ACS, Geyer et al. Click to enlarge.
An new study from the Smith School of Enterprise and the Environment at Oxford University suggests that best way to reduce transport greenhouse gas (GHG) emissions in the short term is a “drastic downscaling of both size and weight” of conventional gasoline and diesel cars.
Compare GHG emissions and costs of PHEV and BPEV with those of regular cars. Focus, Renault Megane, Toyota Corolla and Opel Astra—in their analysis, and compared EV configurations to a regular gasoline car, diesel car, parallel hybrid car and series HEV (SHEV). TCO of future wheel motor PHEV may. —van Vliet et al.
A pair of researchers at the University of Michigan have used “big data” mining techniques to evaluate the impact of adopting plug-in electric vehicles (PEVs) in the Beijing taxi fleet on life cycle greenhouse gas emissions based on the characterized individual travel patterns. In particular, consumer travel patterns (i.e., —Cai and Xu.
Honda Motor Company will introduce a battery-electric vehicle (BEV) and a new plug-in hybrid vehicle (PHEV) to the US market in 2012, said President & CEO Takanobu Ito in his mid-year address in Tokyo, Japan. BEV and PHEV demonstration programs will begin later this year in the US. and the City of Torrance, Calif. Plug-in hybrid.
A newly released University of Michigan study found widespread consumer interest in buying plug-in hybrid electric vehicles; however, the cost of the cars is much more influential than environmental and other non-economic factors as a predictor of purchase probabilities. Source: Curtin et al. 2009) Click to enlarge. Source: Curtin et al.
In Tokyo, Toyota Motor Corporation (TMC) formally announced the introduction of the Prius Plug-in Hybrid—the plug-in version of the third-generation Prius gasoline-electric hybrid vehicle—into key markets. Gasoline-electric hybrid fuel efficiency. gasoline 2ZR –FXE (high-expansion ratio). . Click to enlarge. Maximum output.
According to a new lifecycle analysis by a team at Carnegie Mellon University, a battery electric vehicle (BEV) powered with natural gas-based electricity achieves around an average 40% lifecycle greenhouse gas (GHG) emissions reduction when compared to a conventional gasoline vehicle. Earlier post.).
PHEVs and demonstration locations. The US Department of Energy (DOE), through its Advanced Vehicle Testing Activity ( AVTA ) at Idaho National Laboratory (INL), has completed 1 million miles of plug-in hybrid electric vehicle (PHEV) testing. PHEV Models Under AVTA Testing. Source: INL. Click to enlarge. Model Battery.
A study by researchers at Carnegie Mellon University has concluded that regulatory incentives for OEMs for alternative fuel vehicles (AFVs) intended to encourage a technology transition in the transportation fleet result in increased fleet-wide gasoline consumption and emissions. Click to enlarge. —Jenn et al.
His body of work on on the underlying the theory and algorithms for this this extends back several years to his 2008 doctoral thesis at the University of Michigan (subsequently published as a book: Real-time, self-learning identification and stochastic optimal control of advanced powertrain systems ). Background. Malikopoulos, Andreas A.,
Given the median biofuels forecast of 13 billion gallons of gasoline equivalent (GGE) in 2050, it is necessary to place a high priority on electrification of the transportation sector, if large reductions are to be attained by 2050. PHEVs sold in 2050 are primarily large-battery PHEVs (i.e. —Yang et al.
A new analysis by Orkun Karabasoglu and Jeremy Michalek of the Carnegie Mellon Vehicle Electrification Group at Carnegie Mellon University found that driving conditions affect the economic and environmental benefits of electrified vehicles “ substantially ”. Source: Karabasoglu and Michalek. Click to enlarge.
The focus of the meeting was on plug-in vehicle batteries (plug-in hybrids [PHEVs] and battery-electric vehicles [BEVs]) and batteries for large and small stationary energy storage applications. Gasoline prices would need to be about $6/gallon before EVs are cost competitive.
Via paid consultants, close relationships with universities, a pliant press more apt to reprint a press release than analyze it, and print and television advertising, their negative message has been successfully imparted. Dubious presumptions about PHEV usage lead the authors to minimize any potential petroleum and emissions reductions.
In a new study, a team from Carnegie Mellon University (CMU) and Ford Research and Advanced Engineering set out to determine the optimal mix for the fleet of mid-size personal vehicles in the US—while maintaining current driving patterns—with the goals of minimizing greenhouse gas emissions (GHG) or cost. Traut et al.
Results from a study by a team from Carnegie Mellon University, Ford and Drexel University suggest that Chinese consumers are more receptive to adopting battery-electric vehicles (BEVs) than their American counterparts, regardless of subsidies. Low-range PHEVs compete most strongly against their gasoline counterparts in both countries.
Ionotec Ltd (lead), Dynamic-Ceramic Ltd, Birmingham University, University College London, Aloxsys Inc. High energy density TMO/Si-alloy battery for PHEVs. Axeon Technologies Ltd (lead), University of St Andrews, Nexeon Ltd, Ricardo UK Ltd. Delphi Diesel Systems UK Ltd (lead), University College London.
This tendency of fuel blends to form precipitates during long term storage could impact the operation of diesel plug-in hybrid vehicles (PHEV). Now, researchers in Germany hav devised a novel sensor for the onboard determination of fuel quality in diesel PHEVs to address these issues. (A —Eskiner et al.
Lifecycle GHG emissions per km for different powertrain types (ICEV, LW-ICEV HEV, PHEV, and BEV) in selected counties. The values in the boxes are the percent of counties where HEVs/PHEVs/BEVs have less emissions (blue box), similar (±5%) emissions to ICEV comparator (white box), or more emissions than the ICEV comparator (light orange).
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