MRF Hydraulic Mount System of Coach and Research of its Fuzzy Control

Abstract:

Current coach mainly use the passive rubber mount system to isolate vibration, it’s hard to meet the engine broadband range isolation requirements. In order to reduce the coach engine vibration’s influence on the ride comfort and operational stability, it’s proposed that a magnetorheological fluid powertrain mount system. Set up the six degrees of freedom dynamic model and 1/4 engine single freedom vibration model. Design a fuzzy controller, which the input is dynamic exciting force and second order main frequency, the output is control current. Simulate the three types systems with the help of software of MATLAB/SIMULINK and Fuzzy control toolbox. The result shows that when fuzzy controller works, adjustable damping effect is obvious, it can attenuate vibration in large degree. The magnetorheological hydraulic mount with the fuzzy control ,compared with rubber mount and traditional hydraulic mount, has better isolation effect. Its damp can be controlled real-time, and it can be effective in isolation within the broadband.

• Periodical: Applied Mechanics and Materials (Volumes 284-287)
• Pages: 2261-2265
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.284-287.2261
• Online since: January 2013
• Authors: Yang Zhang, Zhao Bo Chen, Ying Hou Jiao
• Keywords: Dynamics Model, Fuzzy Control, MRF Hydraulic Mount

References

[1] Y.H. Yu, N.G. Naganathan, R.V. Dukkipati. A Literature Review of Vehicle Automotive Engine Mounting Systems. Mechanism and Machine Theory (2001).

DOI: 10.1016/s0094-114x(00)00023-9

[2] Jia Qi feng, Vehicle suspension with magnetorheological damper under semi-active control. Journal of Tianjin Univestty(2006).

[3] LIMeng, Tang Wei. Seni-active control of vehicle suspensions based on MRF damper. Ordnance Industry Automation(2004).

[4] T. Ushijima, K. Takano, H. Kojima. High Performance Hydraulic Mount for Improving Vehicle Noise and Vibration. The U.S.A.: Mechanism and Machine Theory(2001).

DOI: 10.4271/880073

[5] M.S. Brian. Design and Characterization of Tun Able Magneto-rheological Fluid Elastic Mounts . Virginia: Master Degree Dissertations of the Faculty of the Virginia Polytechnic Institute and State University(2008).

[6] D.F. Goncalves J.H. Koo and M. Ahmadian. A Review of the State of the Art in Magnetorhe– ological Fluid Technologies-Part I: MR Fluid and MR Fluid Models . TheShock and Vibration Digest, (2006).

DOI: 10.1177/0583102406065099

[7] HUANG Zhitan, ZHANG Xiaozu, YUE Wei. The automobile dual suspension model and the general analysis of its riding comfort . Journal of Jiangsu University(Natural Science Edition) (2003).