Research on the ECAS System Model and Control Strategy

Abstract:

Tractor SX4187NT361K, which is manufactured by the Shaanxi Automobile Group Limited Corporation, is regarded as a prototype vehicle. This paper investigates an 1/4 car model with air springs for the tractor and a working model of air spring. A height PID control method for ECAS is designed, and its digital simulation is conducted. An ECAS test-bed is designed, and hardware of a measurement and control system for the test-bed is designed with DSPACE system, its softwares are also designed with Simulink and ControlDesk. Finally, active and passive tests of the ECAS are conducted through changing frequencies and desired heights, simulation and test results show that the PID height control method for ECAS is feasible.

• Periodical: Applied Mechanics and Materials (Volume 419)
• Pages: 654-660
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.419.654
• Online since: October 2013
• Authors: Xi Jin Zhang, Hong Yan Li, Zong De Fang, Mao Ting Wang, Jing Wen Pan, Chao Li
• Keywords: Air Spring, dSPACE, ECAS, PID, Working Model

References

[1] S. Oman, M. Fajdiga, M. Nagode. Estimation of air-spring life based on accelerated experiments. Materials and Design, 2010, 31: 3859–3868.

DOI: 10.1016/j.matdes.2010.03.044

[2] Marco W. Holtz, Johannes L. van Niekerk. Modelling and design of a novel air spring for a suspension seat. Journal of Sound and Vibration, 2010, 329: 4354–4366.

DOI: 10.1016/j.jsv.2010.04.017

[3] LI Fengxiang, YANG Wei-min, DING Yu-mei. Simulation of Static Test of Air spring[C]. I n: Proceedings of the Asian international conference on advanced materials (AICAM2005) , 2006: 713-716.

[4] WEI Xu, LIN He, SHUA I Chang-geng, et al . Stiffness Calculation and Dynamic Simulation of Air Spring [C]. DETC2005: 20th biennial conf on mechanical vibration and noise, 2005: 1395-1399.

DOI: 10.1115/detc2005-84338

[5] YE Zhen-xia, ZHU Hai-chao, HE L in . A Study on Stiffness Characteristic of Air Spring with Fem [C]. DETC2005: 20th biennial conf on mechanical vibration and noise, 2005: 2097-2100.

DOI: 10.1115/detc2005-84257

[6] PELZ P, BUTTENBENDER J . The Dynamic Stiffness of an Air Spring[C]. Proceedings of the 2004 international conference on noise and vibration engineering, ISMA, 2004: 1727-1736.

[7] A.J. Nieto, A.L. Morales, A. Gonzalez, J.M. Chicharro, P. Pintado. An analytical model of pneumatic suspensions based on an experimental characterization. Journal of Sound and Vibration, 2008, 313: 290-307.

DOI: 10.1016/j.jsv.2007.11.027

[8] A.J. Nieto, A.L. Morales, J.R. Trapero, J.M. Chicharro, P. Pintado. An adaptive pneumatic suspension based on the estimation of the excitation frequency. Journal of Sound and Vibration, 2011, 330: 1891-(1903).

DOI: 10.1016/j.jsv.2010.11.009

[9] A.J. Nieto, A.L. Morales, J.M. Chicharro, P. Pintado. Unbalanced machinery vibration isolation with a semi-active pneumatic suspension. Journal of Sound and Vibration, 2010, 329: 3-12.

DOI: 10.1016/j.jsv.2009.09.001

[10] Jiang libiao. Research on Matching design and control of vehicle electronic control air suspension [D], China P. R., Jilin University, (2007).