Use of Vehicle Power-Train Simulation with AMT for Fuel Economy and Performance

Nagwa Ahmed Abdel-Halim

Automotive Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.

DOI: 10.4236/mme.2013.33018                

Abstract

Frequent stops and starts for the traffic lights as well as acceleration/deceleration, rather than at constant speed, are the most common transient operating conditions. Consequently, understanding the dynamic characteristics of the powertrain system is vitally important in designing an efficient and fresh vehicle. To investigate the dynamic characteristics of the road vehicle performance, apart from a real road testing, it is necessary to set up a numerical test bed for dynamic performance simulation. The latter is even more convenient, costless and data repeatable. However, the aim of the present paper is to establish a computer simulation package by which the road vehicle power-train system design is developed for a small passenger vehicle based on fuel economy and performance. Furthermore, a proposed professional computer program of Automated Manual Transmission (AMT) system related to organizer algorithm of attractive gearshift requests is also introduced. The result of the proposed AMT ensures that the drive wheels force balance in order to keep gear shift, to kick down or up not only shift feel  but also the fuel consumption, and to alarm by near a specific failure or to get back system performance.

Keywords

Automated Manual Transmission (AMT); Dynamic Characteristics; Dynamic Performance Simulation; Fuel Economy

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	M. D. Artamonov, V. A. Ilarionov and M. M. Morin, “Motor Vehicles,” Mi Publishers, Union of Soviet Socialist Rrpublics, 1976.
[2]	J. Y. Wong, “Theory of Ground Vehicles,” John Wley & Sons, New York, 1993.
[3]	P. M. Heldt, “Torque Converters or Transmissions,” Chilton Company, Philadelphia, 1955.
[4]	W. C. Waters, “General Purpose Automotive Vehicle Performance and Economy Simulator,” SAE Paper No. 720043, 1972.
[5]	K. Post, et al., “Vehicle Characterization and Fuel Consumption Prediction Using Maps and Power Demand Models,” International Journal of Vehicle Design, Vol. 6, No. 1, pp. 72-92,1985.
[6]	S. M. Metwalley, “Hybrid Electric Minivan Performance and Emission Pollution Evaluation,” Engineering Research Journal, Zagazig University, 2007
[7]	S. M. Metwalley, “Comparative Study of Energy Requirement for Conventional and Hybrid Electric Vehicles,” Engineering Research Journal, Zagazig University, 2007.
[8]	A. W. Phillips, et al., “Development and Use of Vehicle Power-Train Simulation for Fuel Economy and Performance Studies,” SAE Paper No. 900619, 1990.
[9]	A. Watanabe, et al., “Isuzu’s New Transmission Control System,” International Journal of Vehicle Design, Vol. 6, No. 3, 1985, 362-372.
[10]	J. Horn, et al., “Flatness-Based Clutch Control for Automated Manual Transmissions,” SAE, Paper No. 200401-0866, 2004.
[11]	C. W. Hong, “A PC Based Computer Simulation Package for Spark Ignition Engine System Design,” Proceedings of the IMechE International Conference on Computers in Engine Technology, 1991, pp. 127-134.
[12]	S. Yamashita, et al., “Development of an Analyzing System for Power-Train Performance,” JSAE, Vol. 14, No. 4, 1993, pp. 28-34.
[13]	R. E. Buck, “A Computer Program (HEVSIM) for Heavy Duty Vehicle Fuel Economy and Performance Simulation,” Vol. 2, Users’ Manual, US Department of Transportation Document #DOT-HS-805-911, 1981.
[14]	M. Shibuya and S. Kubota, “Optimum Control Logic for Manual Transmission,” SAE, Paper No. 850297, 1985.
[15]	M. D. Schrock and Y. Liu, “Simulation of Control Schemes for Agricultural Tractor Engines and Transmissions,” American Society of Agricultural Engineers, Vol. 33, No. 6, 1990, 1785-1789.
[16]	A. F. Burke and C. B. Somcah, “Computer-Aided Design of Electric and Hybrid Vehicles,” International Journal of Vehicle Design, 1982, pp. 61-81.
[17]	H. W. He, Z. T. Liu, L. M. Zhu and X. L. Liu, “Dynamic Coordinated Shifting Control of Automated Mechanical Transmissions without a Clutch in a Plug-In Hybrid Electric Vehicle,” Energies, Vol. 5, 2012, pp. 3094-3109. doi:10.3390/en5083094
[18]	Z. T. Liu, S. Y. Shi, H. W. He and W. Q. Li, “Study on Dynamic Shift Schedule of Automated Mechanical Transmission in a Parallel Hybrid Electric Vehicle,” 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT), Shenyang, 7-9 September 2012, pp. 1619-1622.