Robust Integrated Design for Vehicle Chassis Based on Uncertainties

Abstract:

In order to improve overall vehicle performance and decrease movement deviation caused by uncertainties from automobile chassis, a robust vehicle chassis model is built with steering system, suspension system and braking system. In the model, the length of the steering trapezoid arm, the bottom angle of trapezoid mechanism, inclination angle, caster, camber and toe-in are defined as controllable variables, and load, driving force, steering torque are defined as noise factors. The optimum objectives include the maximum turning angle error of steering mechanism, the maximum braking sideslip and the maximum swing angle of front wheel on bumpy road. Taguchi method is applied to solve the robust result for automobile chassis model. Compared that the variances of objective values are decreased with the same noise factors and the robustness of sub-systems of chassis is improved.

• Periodical: Applied Mechanics and Materials (Volumes 644-650)
• Pages: 29-32
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.644-650.29
• Online since: September 2014
• Authors: Lei Zhang*, Jie Xuan Lou, En Guo Dong
• Keywords: Chassis, Multi-System, Robust Design, Uncertainty

References

[1] LIU Zhensheng, ZHAO Liang. Motion Compatibleness Analysis and Optimization of Double Front Axle Steering Mechanism and Suspension System. China Mechanical Engineering, Vol. 24 (2013), p.2164.

[2] WANG Tao. Multi-objective and Multi-criteria Decision Optimization of Automobile Suspension Parameters. Transactions of the Chinese Society for Agricultural Machinery, Vol. 40(2009), p.27.

[3] WANG Huaji, ZONG Changfu, GUAN Xin, etc. Method of Determining Weights of Subjective Evaluation Indexes for Car Handling and Stability Based on Fuzzy Analytic Hierarchy Process. Journal of Mechanical Engineering, Vol. 47(2011), p.83.

DOI: 10.3901/jme.2011.24.083

[4] CHE Huajun, CHEN Nan, YIN Guodong. Robust Design of Suspension Performance Parameters for Vehicle Handling and Stability. Automotive Engineering, Vol. 31(2009), p.371.

[5] ZHANG Lei, ZHANG Wenming, SHEN Yanhua. Robust design for locus generating steering mechanism based on Monte Carlo Method. Journal of University of Science and Technology Beijing, Vol. 12(2006), p.1174.

[6] CHEN Shi-an, GU Binbin, QIU Feng, et al. Influence of velocity change on handling and stability of vehicle. Journal of Traffic and Transportation Engineering, Vol. 9(2009), p.60.