Dissertation > Excellent graduate degree dissertation topics show

Studying of Fuzzy Logic Control for Vehicle Active Suspension Based on Improved Genetic Algorithm

Author: XuZhiQiang
Tutor: ZhangJingJun
School: Hebei University of Engineering
Course: Mechanical Design and Theory
Keywords: Active suspension system Multi-body model Fuzzy Controller Improved Genetic Algorithm Optimal design
CLC: U463.33
Type: Master's thesis
Year: 2011
Downloads: 58
Quote: 0
Read: Download Dissertation

Abstract


Vehicle suspension system is to ensure that the car carrying system with wheels or axles between the elastic contact and transfer loads to ease the impact attenuation of vibration as well as to adjust the general term for body position in the car driving device , used to slow down the outside disturbance . the impact of the body , to ensure that the car ride comfort and handling stability . Active suspension system to control quality better than the passive suspension , according to the situation of the road between the wheels and the body active and timely adjustment and produce the desired suspension control , in order to suppress the vibration of the body , so that the suspension is the most excellent damping state . The active suspension system control goal is to get a good ride comfort and handling stability , traditional control theory and method difficult to take full advantage of its performance . Fuzzy control is an imitation of human thinking, reasoning, intelligent control method suitable for the control of active suspension systems . In this thesis automobile active suspension system multibody model for the control object , first of all , based on ADAMS / View software created 7 DOF vehicle active suspension system with double wishbone front suspension subsystem and drag-and-drop rear suspension subsystem multi- body model , ADAMS / Control module import multi-body model in Matlab / Simulink environment ; then implemented in Matlab / Simulink fuzzy controller design of the suspension system , and the definition of control rules for the design variables , body acceleration target function of the optimization problem ; once again , using Matlab / Command command writing improved genetic algorithm program and control the operation of the entire system , to achieve improved genetic algorithm to optimize the fuzzy rules . Finally, the simulation analysis of the entire system . In order to verify the performance of a fuzzy controller effects and genetic algorithm optimization speed of 30m / s , the active suspension system and passive suspension system were analyzed. The comparative analysis of the results showed that the Fuzzy Control active suspension system based on improved genetic algorithm to improve the control effect of the fuzzy controller , significantly improve vehicle ride comfort , and also verify the feasibility and accuracy of co-simulation method .

Related Dissertations

  1. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  2. Citrus Image Segmentation Based on Genetic Algorithm,TP391.41
  3. Deep Continental Drilling Rig Top Drive Hydraulic System Design and Research Summary,TE922
  4. Research on Control Algorithm of Ball&Plate System,TP13
  5. Humaniod Robot Development and Research,TP242
  6. Dynamic Analysis and Optimization of Six-bar Beating-up Mechanism of an Air-jet Loom,TS103.33
  7. Structure Analysis and Optimization Design for 150 Tons Flat-Top Crane,TH213.3
  8. Research of Optimal Design of Power System in High Speed Railway,U223
  9. Optimal Design of Suspender Replacement in Concrete Filled Steel Tubulur Arch Bridge,U448.22
  10. Design and Implementation of Hot-pressing Module for RFID Tag-package Equipment,TP391.44
  11. Study on Modeling and Optimal Design of Capacitively Coupled Electrical Resistance Tomography System,TP212
  12. EMU bogie bearing reliability analysis and fault diagnosis technology research,U269
  13. 120 Tons Gantry Crane Structural Analysis and Girder Structural Optimization Based on Genetic Algorithm,TH213.5
  14. Research on Navigation Algorithms Based on the Fuzzy Theory,P228.4
  15. Flow-Fieldanalysisand Structure Optimization of Oil Sumpin Thrust Bearing of Large-Scale Water Turbine Generator,TM312
  16. The Research of Matrix Converter Based on Fuzzy Controls,TM46
  17. The Study on Saving Energy Envelop in Improving Hot and Humid Environment of Village Residences in Chongqing,TU111.4
  18. Optimization Design of the Railway Trucks Body and Fatigue Life Forecast of Seam Weld,U272
  19. The Research on Parametric Structure of Railway Passenger Car Body Based on APDL,U270
  20. The grassroots central bank Human Resources incentives optimization design,F832.31
  21. The Study of the Welding Pool Real-time Visual Sensing and Parameter-vontrol System in Bypass Coupling Arc MIG Welding,TG434

CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Travel System > Suspension
© 2012 www.DissertationTopic.Net  Mobile