Optimization of Fuel Consumption of a Bus used in City Line with Regulation of Driving Characteristics

The fuel cost of the motor vehicle operating on its common route is an important part of the operating cost. Therefore, the importance of the fuel saving is increasing day by day. One of the parameters which improve fuel saving is the regulation of driving characteristics. The number and duration of stop is increased by the heavy traffic load. It is possible to improve the fuel saving with regulation of traffic flow and driving characteristics. The researches show that the regulation of the traffic flow decreases fuel consumption, but it is not enough to improve fuel saving without the regulation of driving characteristics. This study analyses the fuel consumption of two trips of city bus operating on its common route and determines the effect of traffic density and driving characteristics on fuel consumption. Finally it offers some suggestions about regulation of driving characteristics to improve the fuel saving. Fuel saving is determined according to the results obtained from simulation program. When experimental and simulation results are compared, it has been found that the fuel saving was reached up the to 40 percent ratios.




References:
[1] Özkan, M., 1997, İstanbul Trafiğinde Belirlenen Güzergahta Çalıştırılan
Belediye Otobüsünün Optimum Yakıt Sarfiyatı Koşullarının Nümerik
Yöntemle Et├╝d├╝, Ph.D., Y─▒ld─▒z Technical University, ─░stanbul
[2] Hillard, J., C., and Springer, G. S., Fuel Economy in Road Vehicles
Powered by Spark Ignition Engines, 1984, Plenum Press, US and UK
[3] Haz─▒m, K. Al-Om─▒shy, Ekhlass M.F., and Ramzi, R.─░., 1993, The
Influence of Various Factors on the Fuel consumption of Petrol-Powered
Vehicles Using A Computer -Simulation Model, Science of the Total
Environment, Energy, 18(1), pp 63-68,
[4] Evans, L., and Herman, R., Automobile Feul Economy on Fixed Urban
Driving Scheduls, 1978, Transportation Science, US
[5] Özkan, M., Özener O., and Özoğuz, B., 2008, Comparison of Fuel
Consumption and Emissions of an Urban Bus Fuelled with Diesel and
Biodiesel, 3rd International Symposium on Environment, Athens, page
49-67
[6] Turkish Statistical Institute, 2007, TU─░K2007,
URL:http://www.tuik.gov.tr/ulastirmadagitim-app /ulast─▒rma.zul
[7] 5Heisler, H., 1989, Advanced Vehicle Technology, 1989, Adwerd
Arnold, UK
[8] 6Bosch Automotive Handbook 7th, 2007, Robert Bosch
[9] Lechner, G., and Naunheimer, H., Automotive Transmissions,
Springer, US
[10] Zub, R.W., 1984, Transit Bus Fuel Economy and Performance
Simulation, SAE, US
[11] An, F., Ross,M., 1993, A model of Fuel Economy and Driving
Patterns, SAE, US
[12] Hooker, J., N., 1988, Optimal Driving for Single-Vehicle Fuel
Economy, Pergamon Press, UK
[13] Özkan, M., 1999,Comparison of The Effect of Traffic Density and
Driving Characteristics on Fuel Consumption At The Specified Route
And Suggestions, Journal of Yildiz Technical University 1999-1, pp 64-
73
[14] Özkan, M., 2007, A Comparative study of effect of Biodiesel and
diesel fuel on CI engine-s performance, emissions and its cycle by cycle
variations, Energy & Fuels, Volume 21(6), pages 3627-3636
[15] Ross, M., "Automobile Fuel Consumption and Emissions : Effects of
Vehicles and Driving Characteristics" , Science of the Total
Environment, 20 pp., 75-112
[16] Guibet, J., C., 1999, Fuels and Engines, Institut Fran├ºais du Pétrole
Publications, France
[17] Degobert, P., 1995, Automobile and Pollution, SAE, US