STUDY ON DRIVEABILITY INDEX FOR MOTOR GASOLINE

Abstract

Abstract:

Driveability Index (DI) is a widely used index of overall driveability, especially in predicting cold-start and warm-up driveability. The research background, developments and applications of DI were stated. DI values of a large number of gasoline samples were determined and analyzed. The gasoline samples varied in regions, seasons and specifications. The results showed some regions have a large range of DI value. The DI level varies greatly among different regions. For the studied regions, the DI value is obviously lower as a whole in winter than summer. DI value in recent years changes very little according to the studied regions. Samples in some regions with high DI value need careful attention.

Key words: motor gasoline, volatility, driving performance, driveability index

References

[1] 欧风. 石油产品应用技术手册 [M]. 北京：中国石化出版社，1998. 69-71. [2] ASTM D 4814-14b, Standard specification for automotive spark-ignition engine Fuel [S]. [3] EN228-2012, Automotive fuels - Unleaded petrol - Requirements and test methods [S]. [4] GB 17930-2013，车用汽油[S]. [5] Baudino J H, Copeland L C. A Typical fuel volatility effects on driveability, emissions, and fuel economy of stratified charge and conventionally powered vehicles, SAE Paper 780610. [6] Barker D, Gibbs L, and Steinke E. The development and proposed implementation of the ASTM driveability index for motor gasoline[J]. SAE Technical Paper 881668, 1988. [7] Nasution A S, Jasjfi E. Driveability index of commercial gasoline in ASEAN countries [J]. LEMIGAS Scientific Contributions to Petroleum Science & Technology, 2006, 29(3), 38-42. [8] 王维民.国Ⅴ车用汽油标准的探讨[J]. 石油库与加油站，2014，23（2）：26-28. [9] Driveability evaluation in cool weather [R]. CRC Report No. 439, Alpharetta, GA: Coordinating Research Council, 1970. [10] Benson J, Bigley H, and Keller J. Passenger car driveability in cool weather [J]. SAE Technical Paper 710138, 1971. [11] Shibata G, Omata T, Isoda T, et al. The development of driveability index and the effects of gasoline volatility on engine performance[J]. SAE Technical Paper 952521, 1995. [12] 2000 CRC intermediate-temperature volatility program[R]. CRC Report No. 626, Alpharetta, GA: Coordinating Research Council, 2001. [13] 2003 CRC intermediate-temperature volatility program[R]. CRC Report No. 638, Alpharetta GA: Coordinating Research Council, 2004. [14] Jewitt C, Gibbs L, and Evans B. Gasoline driveability index, ethanol content and cold-start/warm-up vehicle performance[J]. SAE Technical Paper 2005-01-3864, 2005. [15] SAS user’s guide: statistics,version 5 edition, SAS institute Inc.,Cary, North Carolina,1985. [16] 1984 CRC intermediate temperature driveability program using gasoline-alcohol blends [R]. CRC Report No. 554, Alpharetta, GA: Coordinating Research Council, 1987. [17] CRC low and intermediate-temperature driveability program using gasoline-alcohol blends [R]. CRC Report No. 568, Alpharetta, GA: Coordinating Research Council, 1990. [18] Effect of volatility and oxygenates on driveability at intermediate ambient temperatures [R]. CRC Report No. 578, Alpharetta, GA: Coordinating Research Council, 1992. [19] CRC 1995-97 CRC study of fuel volatility effects on cold-start and warm-up driveability with hydrocarbon, MTBE, and ethanol gasolines: Summary report for phases 1, 2 and 3 [R]. CRC Report No. 613, Alpharetta GA: Coordinating Research Council, 1998. [20] Baustian J and Wolf L. Cold-start/warm-up vehicle performance and driveability index for gasolines containing isobutanol [J]. SAE Int J Fuels Lubr 2012,5(3):1300-1309.， [21] Lew Gibbs, Bob Anderson, Kevin Barnes, et al. Motor gasolines technical review [EB/OL]. http://www.chevron.com/documents/pdf/MotorGasTechReview.pdf.