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Sliding mode control of a simulated MEMS gyroscope
C Batur1, T Sreeramreddy, Q Khasawneh
1Department of Mechanical Engineering, University of Akron, Ohio 44325-3903, USA. batur@uakron.edu
ISA Transactions
|February 17, 2006
Summary
Microelectromechanical systems (MEMS) vibrating gyroscopes offer advantages for transportation stability control. Sliding mode controllers provide a more accurate estimation of angular velocity compared to adaptive feedback controllers.
Area of Science:
- Engineering
- Control Systems
- Microelectromechanical Systems (MEMS)
Background:
- MEMS devices are increasingly used in measurement and control due to their small size, low cost, and low power consumption.
- Vibrating gyroscopes, a type of MEMS device, are crucial for enhancing stability control in the transportation industry.
Purpose of the Study:
- To investigate the design and control of a MEMS vibrating gyroscope.
- To compare the effectiveness of two control strategies: model reference adaptive feedback and sliding mode control.
Main Methods:
- The gyroscope was designed using Pro-E software.
- Finite-element domain simulation was employed to approximate dynamic characteristics with a lumped model.
- Model reference adaptive feedback and sliding mode controllers were designed and implemented.
Main Results:
- The sliding mode controller demonstrated superior performance in estimating unknown angular velocity.
- The sliding mode controller ensured better device stability compared to the model reference adaptive feedback controller.
Conclusions:
- Sliding mode control is a more effective strategy for MEMS vibrating gyroscopes in transportation applications.
- The study validates the potential of MEMS vibrating gyroscopes for advanced stability control systems.
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