scholarly journals Analysis of the Fuel Economy Benefit of Drivetrain Hybridization

1997 ◽  
Author(s):  
Matthew R. Cuddy ◽  
Keith B. Wipke
Keyword(s):  
Fuel Economy ◽  
Economy Benefit

scholarly journals Fuel economy benefit analysis of pass-at-green (PaG) V2I application on urban routes with STOP signs

2020 ◽  
Vol 83 (2/3/4) ◽  
pp. 258
Author(s):  
Levent Guvenc ◽  
Bilin Aksun Guvenc ◽  
Ozgenur Kavas Torris ◽  
Mustafa Ridvan Cantas ◽  
Sukru Yaren Gelbal
Keyword(s):  
Fuel Economy ◽  
Benefit Analysis ◽  
Economy Benefit

Fuel economy benefit of Active Grille Shutters for real world, WLTP and RDE cycles

2021 ◽  
Author(s):  
Salvio Chacko ◽  
Dimitri Kalifronas ◽  
Jesus Simon ◽  
Carlos Alonso ◽  
Antonio Solimene
Keyword(s):  
Fuel Economy ◽  
Real World ◽  
Economy Benefit

Fuel economy benefit analysis of pass-at-green (PaG) V2I application on urban routes with STOP signs

2020 ◽  
Vol 83 (2/3/4) ◽  
pp. 258
Author(s):  
Ozgenur Kavas Torris ◽  
Mustafa Ridvan Cantas ◽  
Sukru Yaren Gelbal ◽  
Bilin Aksun Guvenc ◽  
Levent Guvenc
Keyword(s):  
Fuel Economy ◽  
Benefit Analysis ◽  
Economy Benefit

A Parametric Study of an Exhaust Recovery Turbogenerator on a Diesel-Electric Hybrid Bus

2013 ◽  
Author(s):  
Ian Briggs ◽  
Geoffrey McCullough ◽  
Stephen Spence ◽  
Roy Douglas ◽  
Richard O’Shaughnessy ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Fuel Economy ◽  
Parametric Study ◽  
Fuel Prices ◽  
Engine Model ◽  
Toxic Emissions ◽  
Exhaust Line ◽  
In Series ◽  
Hybrid Bus ◽  
Economy Benefit

The fuel consumption of automotive vehicles has become a prime consideration to manufacturers and operators as fuel prices continue to rise steadily, and legislation governing toxic emissions becomes ever more strict. This is particularly true for bus operators as government fuel subsidies are cut or removed. In an effort to reduce the fuel consumption of a diesel-electric hybrid bus, an exhaust recovery turbogenerator has been selected from a wide ranging literature review as the most appropriate method of recovering some of the wasted heat in the exhaust line. This paper examines the effect on fuel consumption of a turbogenerator applied to a 2.4-litre diesel engine. A validated one-dimensional engine model created using Ricardo WAVE was used as a baseline, and was modified in subsequent models to include a turbogenerator downstream, and in series with, the turbocharger turbine. A fuel consumption map of the modified engine was produced, and an in-house simulation tool was then used to examine the fuel economy benefit delivered by the turbogenerator on a bus operating on various drive-cycles. A parametric study is presented which examined the performance of turbogenerators of various size and power output. The operating strategy of the turbogenerator was also discussed with a view to maximising turbine efficiency at each operating point. The performance of the existing turbocharger on the hybrid bus was also investigated; both the compressor and turbine were optimised and the subsequent benefits to the fuel consumption of the vehicle were shown. The final configuration is then presented and the overall improvement in fuel economy of the hybrid bus was determined over various drive-cycles.

Demonstration of Fuel Economy Benefit of Friction Modifier Additives via Fuel-to-Lubricant Transfer in Euro-5 Gasoline Fleet

2013 ◽  
Vol 6 (3) ◽  
pp. 677-690 ◽  
Author(s):  
Sarah M. Remmert ◽  
Alison Felix-Moore ◽  
Steven R. Nattrass ◽  
Ian Buttery ◽  
Pauline Ziman ◽  
...  
Keyword(s):  
Fuel Economy ◽  
Friction Modifier ◽  
Lubricant Transfer ◽  
Economy Benefit

Applications of VVT and VCR on Fuel Economy Improvement Based Engine Electronic Control

2004 ◽  
Author(s):  
Zhengmao Ye ◽  
Ming-Chia Lai
Keyword(s):  
Fuel Economy ◽  
Gasoline Engine ◽  
Fuel Injection ◽  
Engine Performance ◽  
Performance And Emission ◽  
Fuel Economy Improvement ◽  
Operating Regions ◽  
Economy Benefit ◽  
Variable Valve ◽  
Maximal Benefit

Variable valve timing (VVT) and variable compression ratio (VCR) are two technologies to obtain fuel economy benefit. On the other hand, there is a tradeoff among fuel economy, engine performance and emission levels. Advantages of two technologies vary a lot on different engine operating regions. Recently some experiments are conducted on a Port Fuel Injection (PFI) engine in a city drive cycle to investigate the fuel economy impact from VVT, VCR and the technology integration. The testing results show clearly that the synergy of two technologies has further improved the fuel economy, while suitable operating regions need to be determined where the maximal benefit can be achieved. A typical 1.8L four-cylinder gasoline engine is used for experiments using VVT and VCR technologies for fuel economy improvement. The objective is to create a synergy scheme for the optimal fuel economy performance. The supercharged testing engine with VVT and VCR can implement similar performance to that of a larger replacement engine. The fuel economy optimization problem is simply converted into searching for the lowest engine power output region with respect to the same fuel economy improvement level. These optimal points are useful to determine potential best fuel economy operating regions whether VVT and VCR should be implemented individually or combined together.

Microstructure of an extruded rapidly solidified Al-8Fe-2Mo alloy

1986 ◽  
Vol 44 ◽  
pp. 548-549
Author(s):  
W. T. Donlon ◽  
J. E. Allison ◽  
S. Shinozaki
Keyword(s):  
Electron Microscopy ◽  
Automotive Industry ◽  
Fuel Economy ◽  
High Strength ◽  
Al Alloys ◽  
Light Weight ◽  
Thin Sections ◽  
Strength And Durability ◽  
Rapidly Solidified ◽  
Whitney Aircraft

Light weight materials which possess high strength and durability are being utilized by the automotive industry to increase fuel economy. Rapidly solidified (RS) Al alloys are currently being extensively studied for this purpose. In this investigation the microstructure of an extruded Al-8Fe-2Mo alloy, produced by Pratt & Whitney Aircraft, Goverment Products Div. was examined in a JE0L 2000FX AEM. Both electropolished thin sections, and extraction replicas were examined to characterize this material. The consolidation procedure for producing this material included a 9:1 extrusion at 340°C followed by a 16:1 extrusion at 400°C, utilizing RS powders which have also been characterized utilizing electron microscopy.

The Relation of Locomotive Maintenance to Fuel Economy

1918 ◽  
Vol 86 (2218supp) ◽  
pp. 11-11
Author(s):  
Frank McManamy
Keyword(s):  
Fuel Economy
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