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Bradley University Department of Electrical and Computer Engineering Senior Capstone Project

Active Suspension System (ACTSS). Bradley University Department of Electrical and Computer Engineering Senior Capstone Project 4/27/2006. Project Advisors: Mr. Steven Gutschlag and Dr. Winfred Anakwa. Presented by: Blake Boe and Tyson Richards. Outline. Project Summary

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Bradley University Department of Electrical and Computer Engineering Senior Capstone Project

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  1. Active Suspension System (ACTSS) Bradley University Department of Electrical and Computer Engineering Senior Capstone Project 4/27/2006 Project Advisors: Mr. Steven Gutschlag and Dr. Winfred Anakwa Presented by: Blake BoeandTyson Richards

  2. Outline • Project Summary • Functional Description • System Block Diagram • Results • Future Work • Questions

  3. Project Summary • Purpose: • Minimize the accelerating force on a mass by canceling the disturbance with a linear actuator.

  4. Project Summary • Objectives: • Integration of the following hardware • Linear Actuator – IDC EC2 series • H-Bridge – MSK 4227 • PSPICE model of the H-bridge • Simulink model of linear actuator and motor

  5. Project Summary • Objectives: • Redesign existing active suspension system • Replace pneumatic actuator with electric linear actuator • Implement open and closed loop controllers • Center actuator stroke (open loop) • Reset actuator stroke (open loop) • Disturbance cancellation (closed loop)

  6. Project Summary • Applications: • Car suspension • Tractor seat

  7. Project Summary • Benefits: • Enhance vehicle ride • Reduce operator fatigue • Improve operator performance

  8. Project Summary Division of Labor:

  9. Functional Description

  10. Functional Description

  11. Functional Description

  12. Functional Description

  13. Functional Description

  14. Functional Description

  15. Functional Description

  16. Functional Description

  17. Functional Description

  18. Functional Description Specifications Physical features • 14.1 in/sec • Continuous operation • 30 lbf load • High voltage reduced current motor • (160V – 20A) • 6 in stroke • Parallel mount

  19. Functional Description x

  20. Outline • Project Summary • Functional Description • System Block Diagram • Results • Future Work • Questions

  21. System Block Diagram

  22. System Block Diagram

  23. Controller Block Diagram

  24. System Block Diagram

  25. Plant Block Diagram

  26. H-Bridge Schematic

  27. H-Bridge Typical System Schematic

  28. Plant Block Diagram

  29. Model of Linear Actuator

  30. Simulation of Linear Actuator Linear Velocity [m/s] Linear Acceleration [m/s2] (160V Step Input)

  31. Results • Fully integrated software and hardware system • Functional proportional controller

  32. Future Work • More complex control algorithm • Variable gain proportional controller • Lag - Lead controller • Compare experimental results to Simulink Model

  33. Questions

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