A Modularized Design for Multi-Drivers Off-Road Vehicle Driving-Line and its Performance Assessment

Modularized design approach can facilitate the modeling of complex systems and support behavior analysis and simulation in an iterative and thus complex engineering process, by using encapsulated submodels of components and of their interfaces. Therefore it can improve the design efficiency and simplify the solving complicated problem. Multi-drivers off-road vehicle is comparatively complicated. Driving-line is an important core part to a vehicle; it has a significant contribution to the performance of a vehicle. Multi-driver off-road vehicles have complex driving-line, so its performance is heavily dependent on the driving-line. A typical off-road vehicle-s driving-line system consists of torque converter, transmission, transfer case and driving-axles, which transfer the power, generated by the engine and distribute it effectively to the driving wheels according to the road condition. According to its main function, this paper puts forward a modularized approach for designing and evaluation of vehicle-s driving-line. It can be used to effectively estimate the performance of driving-line during concept design stage. Through appropriate analysis and assessment method, an optimal design can be reached. This method has been applied to the practical vehicle design, it can improve the design efficiency and is convenient to assess and validate the performance of a vehicle, especially of multi-drivers off-road vehicle.

Authors:

• Yi Jianjun
• Sun Yingce
• Hu Diqing
• Li Chenggang

Keywords:

• Heavy-loaded Off-road Vehicle
• Power Driving-line
• Modularized Design
• Performance Assessment.

References:

[1] Andrew W. Phillips, Dennis N. Assanis, Development and Use of a
Vehicle Powertrain Simulation for Fuel Economy and Performance
Studies, SAE Technical Papers, Document Number: 900619
[2] Lim,W.S., Jo,H.S, Jang,W.J. etc. Development of a general purpose
program based on the concept of subsystem assembly for the analysis of
dynamic characteristics of a powertrain system, IMechE part D 214, 5,
545-560
[3] Gumlnter H. Hohl, Alexander Corrieri. Basic Considerations for the
Concepts of Wheeled off-Road Vehicles, FISITA World Automotive
Congress , Seoul 2000,pp 386 - 386
[4] H-S Jo, etc.. Development of a general-purpose program based on the
concept of subsystem assembly for the analysis of dynamic characteristics
of a power transmission system, Proceedings of the Institution of
Mechanical Engineers, Part D: Journal of Automobile Engineering,
ISSN0954-4070, Volume 214, Number 5 / 2000
[5] Liu Weixin, Ge Ping and Li Wei. Study of Optimal Matching between
Automobile Engine and Transmission Parameters, Vehicle Engineering,
Vol. 12, No.2, pp. 65-72, 1991. (In Chinese)
[6] Shang Gaogao, He Ren and Lu Senlin. Mathematical Model for Hydraulic
Torque Converter-s Performance, Journal of Jiangsu University of
Science and Technology, Vol.20, No.1, 1999. (In Chinese)
[7] Zhuang Jide. Vehicle System Engineering, Mechanical Industrial
Publishing Company, 1997. (In Chinese)
[8] Vantsevich, V.V., "A new effective research direction in the field of
actuating systems for multidrive vehicle", Int. J. of Vehicle Design, Vol.
15, No. 3/4/5, pp. 337-347, 1994
[9] Hu Diqing, Yi Jianjun, Hu Ruing,Li Chenggang, Design and Estimation
of Driven Bridge Used in Off Automobile Modularization-oriented,
Machine Design and Manufacturing Engineering,2000 Vol.15 No.1
P.8-11
[10] Modeling and Solution of Power-flow for Off-road Vehicle Transmission,
Journal of Huaxhong University of Science and Technology,2001 Vol.29
No.7 P.59-60
[11] Wang Xing-dong, etc., A Study on the Dynamic Characteristics of
Vehicle Braking System, Automotive Engineering, 2005 Vol.27 No.1
P.86-88
[12] Wang Xing-dong, etc., Design-feature-based Method for Generation of
Conceptual Design Solution and Evaluation, Journal of Wuhan
University of Science and Technology (Natural Science Edition), 2006
Vol. 29 No. 4.