Toward Improved Fuel Economy in Passenger Car Motor Oils: An Investigation into the Influence of Detergent System and Friction Modifier as Measured by the EPA Federal Test Procedure and Highway Fuel Economy Test Cycles

Demonstrating the fuel economy potential of passenger car motor oils

Innovations in Fuel Economy and Sustainable Road Transport ◽

10.1533/9780857095879.2.89 ◽

2011 ◽

pp. 89-96

Author(s):

H. Ma ◽

R. Dixon ◽

R. Mainwaring

Keyword(s):

Fuel Economy ◽

Passenger Car ◽

Motor Oils

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Effect of Low Viscosity Passenger Car Motor Oils on Fuel Economy Engine Tests

10.4271/2013-01-2606 ◽

2013 ◽

Cited By ~ 9

Author(s):

Nobuo Ushioda ◽

Trevor W. Miller ◽

Carrie B. Sims ◽

Gary Parsons ◽

Mark Sztenderowicz

Keyword(s):

Fuel Economy ◽

Passenger Car ◽

Low Viscosity ◽

Motor Oils

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The Challenges of Developing an Energy, Emissions, and Fuel Economy Test Procedure for Heavy-Duty Hybrid Electric Transit Vehicles

10.4271/952610 ◽

1995 ◽

Cited By ~ 1

Author(s):

Edward A. Bass ◽

Terry L. Ullman ◽

Edwin C. Owens

Keyword(s):

Fuel Economy ◽

Test Procedure ◽

Heavy Duty ◽

Hybrid Electric ◽

Energy Emissions

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An adaptive equivalent consumption minimization strategy considering catalyst temperature for plug-in hybrid electric vehicle

Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering ◽

10.1177/09544070211043478 ◽

2021 ◽

pp. 095440702110434

Author(s):

Tao Deng ◽

Ke Zhao ◽

Haoyuan Yu

Keyword(s):

Fuel Consumption ◽

Electric Vehicle ◽

Fuel Economy ◽

Hybrid Electric Vehicle ◽

Test Procedure ◽

Catalyst Temperature ◽

Equivalent Factor ◽

Simulation Results ◽

Hybrid Electric ◽

Equivalent Consumption Minimization Strategy

In the process of sufficiently considering fuel economy of plug-in hybrid electric vehicle (PHEV), the working time of engine will be reduced accordingly. The increased frequency that the three-way catalytic converter (TWCC) works in abnormal operating temperature will lead to the increasing of emissions. This paper proposes the equivalent consumption minimization strategy (ECMS) to ensure the catalyst temperature of PHEV can work in highly efficient areas, and the influence of catalyst temperature on fuel economy and emissions is considered. The simulation results show that the fixed equivalent factor of ECMS has great limitations for the underutilized battery power and the poor fuel economy. In order to further reduce fuel consumption and keep the emission unchanged, an equivalent factor map based on initial state of charge (SOC) and vehicle mileage is established by the genetic algorithm. Furthermore, an Adaptive changing equivalent factor is achieved by using the following strategy of SOC trajectory. Ultimately, adaptive equivalent consumption minimization strategy (A-ECMS) considering catalyst temperature is proposed. The simulation results show that compared with ordinary ECMS, HC, CO, and NOX are reduced by 14.6%, 20.3%, and 25.8%, respectively, which effectively reduces emissions. But the fuel consumption is increased by only 2.3%. To show that the proposed method can be used in actual driving conditions, it is tested on the World Light Vehicle Test Procedure (WLTC).

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A comparison of friction modifier performance using two laboratory test scales

Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit ◽

10.1177/0954409718787045 ◽

2018 ◽

Vol 233 (2) ◽

pp. 201-210 ◽

Cited By ~ 2

Author(s):

L Buckley-Johnstone ◽

M Harmon ◽

R Lewis ◽

C Hardwick ◽

R Stock

Keyword(s):

Test Procedure ◽

Full Scale ◽

Data Sets ◽

Test Machine ◽

Performance Study ◽

Friction Modifier ◽

Additional Information ◽

Large Spread ◽

Dry Contact ◽

The University

This paper describes two methods, carried out at two different test scales, for assessing the friction modifier performance. Study A used the wear data from a full-scale rig test at the voestalpine Schienen GmbH and compared it with the wear data from twin disc tests using the SUROS test machine at the University of Sheffield. Study B compared the ‘retentivity’ data, from a full-scale rig at the University of Sheffield, with the data from the SUROS tests. Study A concluded that a good correlation existed between the two scales although assumptions made in the full-scale contact calculation introduce a large spread into the results. There was a greater correlation between the two data sets at more severe contact conditions. Study B showed a different baseline coefficient of traction between the two scales and that a longer test length is required to fully evaluate the ‘retention’ of the friction modifier on the full-scale rig. The paper expands on a previous conference presentation on the same subject. Additional information on the test procedure and test rigs is included here. Surface and subsurface analyses of the SUROS test samples have also been added. The analyses have shown that applying the friction modifier leads to a similar wear mechanism as for the dry contact, but the wear is less severe and there is less subsurface deformation. A discussion describing the differences in test scales and comparing lab tests to field operation is also included.

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