Simulation of Hydraulic Semi-Active Suspension System Based on the Adaptive Fuzzy Control

Abstract:

According to vehicle suspension structure, a 2-DOF (degrees of freedom) semi-active hydraulic suspension model for 1/4 vehicle is built. Fuzzy control as a result of simple modeling, with high precision control and non-linear adaptive advantages of the vehicle active suspension control strategy, has been a wider application. In this paper, the body’s speed and acceleration were selected for the fuzzy controller inputs, damper output, to realize the semi-active suspension control. Taking some type of vehicle as the simulation object, this paper uses Matlab/Simulink for computer simulation in the same road conditions. And the performance parameters of improving vehicle vertical vibration are compared to the passive suspension. The results show that the semi-active suspension system strategy by fuzzy control can obviously improve the comfortable and safe ride.

• Periodical: Applied Mechanics and Materials (Volumes 48-49)
• Pages: 1065-1068
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.48-49.1065
• Online since: February 2011
• Authors: Zhi Xuan Jia, Hui Gang Zhang, Jie Li
• Keywords: Comfortable Ride, Fuzzy Control, Semi-Active Suspension, Simulink

References

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