Earticle

초록

영어

The automatic clutch driving system of vehicle automated manual transmission (AMT) is a typical nonlinear system. A fast and accurate position control is difficult to achieve because of the nonlinearity of the load changes caused by the clutch diaphragm spring, the cushion spring, and other nonlinear components and because of the uncertainty of the load changes caused by the cushion spring deformation in the clutch engagement process at varying temperatures on the friction surface. In this paper, based on the theory of fractional calculus and traditional sliding mode control, the method of fuzzy fractional order sliding mode control (FFOSMC) is proposed for clutch control. By selecting the fractional order sliding surface, the laws of control are designed; and self-tuning of the switch gain is realized with the fuzzy controller. Theoretical analysis and numerical simulation revealed that compared with the traditional fuzzy integer order sliding mode controller, FFOSMC achieves better dynamic performance in position control and better robustness against load disturbance and other uncertain factors.

목차

Abstract
 1. Introduction
 2. Mathematical Modeling of the Clutch Driving System
  2.1. Structure of the Clutch Driving System and Transmission Relations
  2.2 Relationship between the Separating Force of the Clutch and the Displacement of the Release Bearing
  2.3 Dynamic Model of the Clutch Driving System
 3. Design of the Fuzzy Fractional Order Sliding Mode Controller
  3.1 Structure of the Control System
  3.2 Fractional Calculus
  3.3 Design of the Fractional Order Sliding Mode Controller
  3.4 Stability Analysis
  3.5 Fuzzy Self-tuning of Switch Gain
 4. Performance Analysis of the FOSMC
  4.1 Chatter
  4.2 Stability
  4.3 Robustness
 5. Numerical Simulation and Result Analysis
  5.1 Dynamic Characteristics Comparison under the Function of Step Signals
  5.2 Stability Comparison under the Load Disturbance
  5.3 Comparison of the Effect of time Delays on System Steady-state Error
  5.4 Comparison of the Clutch Position Trackings at Vehicle Starting
 6. Conclusions
 References

키워드

저자

• Yingchun Long [ School of Mechanical and Automotive Engineering South China University of Technology, Guangzhou 510640, China, School of Physics and Mechanical & Electrical Engineering, Shaoguan University, Shaoguan 512005, China ]
• Lifu Li [ School of Mechanical and Automotive Engineering South China University of Technology, Guangzhou 510640, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Smart Home

• 간기

  격월간

• pISSN

  1975-4094

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605