Research on Calculation Method of the Target Parameters of K&C Test-Rig

Abstract:

The suspension kinematics and compliance (hereafter referred to as 'K & C') characteristics as the important system assembly characteristics have a direct effect on the vehicle handling and stability performance and the ride comfort performance. The suspension K&C test rig is an key equipment to obtain the suspension K&C characteristics. Calculation method of the target parameters of K&C test-rig is studied. The movement law of the suspension K & C test rig is analyzed by useing the multi-body dynamics theory. Application Space rotation transformation matrix based on the measurement system structure is applied to solve the coordinates of the wheel center. Using the space vector operations and the definition of the toe angle and the camber angle, the solution method of the camber and toe angle is derived. The parralel wheel travel analysis using the multi-body dynamics model of the K&C test rig is taken. The simulation results when the rebound travel is-100mm is used to calculate the target parameters and verify the accuracy of the calculation method.Keywords-K&C test; calculation method; multi-body dynamics; rotation transformation matrix;

• Periodical: Applied Mechanics and Materials (Volume 461)
• Pages: 972-976
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.461.972
• Online since: November 2013
• Authors: Li Hao Zhang, Kong Hui Guo, Fei Xiang Zhao, Shu Qin Chen
• Keywords: Calculation Method, K&C Test, Multi-Body Dynamics, Rotation Transformation Matrix

References

[1] Julian, B., Siegler, B., and Regan, C., A simple method to study combined effects of vehicle suspension kinematic and compliance response on steady state cornering, FISITA World Automotive Congress 2008, Congress Proceedings - Testing and Simulation, Munich, Germany , 2008, 395-404.

[2] Cherian, V., Jalili, N., and Ayglon, V., Modelling, simulation, and experimental verification of the kinematics and dynamics of a double wishbone suspension configuration, Proceedings of the Institution of Mechanical Engineers, Journal of Automobile Engineering, 2009, 1239-1262.

DOI: 10.1243/09544070jauto1153

[3] Shim, T., and Velusamy, P. C., Suspension design and dynamic analysis of a lightweight vehicle , International Journal of Vehicle Design, 2007, 43, 258-280.

DOI: 10.1504/ijvd.2007.012307

[4] Jiansen, Y.,  Konghui, G., Haitao, D., Jianwei, Z., et al., Suspension K&C characteristics and the effect on vehicle steering, 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, ( CMCE 2010) , Changchun, China, 2010, 408-411.

DOI: 10.1109/cmce.2010.5610300

[5] Coovert, Sr., David, A., Chen, H.F., and Guenther, D.A. , Design and operation of a new-type suspension parameter measurement device, SAE Special Publications , 1992, 1-12.

DOI: 10.4271/920048

[6] Guo, K.H., Li, N., and Jing, L.X. , Calculation of vehicle kingpin positional parameters based on steering test, Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery 2011, 42, 1-5.

[7] Yang, Y.D., Li, Y.H., Yue, Z., Wang, C.B., et al., Research of the correlation of vehicle handling subjective evaluation and K&C characteristics, Proceedings of the FISITA 2012 World Automotive Congress: Electrical Engineering, Beijing, China, 2013, 339-351.

DOI: 10.1007/978-3-642-33795-6_28

[8] Zhan, J., Lu, J.L., and  Xin, G., Test method of suspension kinematics and compliance,  Applied Mechanics and Materials , 2013, 198, 14-17.