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Study on Oil Pressure Characteristics and Trajectory Tracking Control in Shift Process of Wet-Clutch for Electric Vehicles

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  • Junqiu Li
  • Yihe Wang
  • Jianwen Chen
  • Zongping He

Abstract

Accurate control of oil pressure of wet-clutch is of great importance for improving shift quality. Based on dynamic models of two-gear planetary transmission and hydraulic control system, a trajectory tracking model of oil pressure was built by sliding mode control method. An experiment was designed to verify the validity of hydraulic control system, through which the relationship between duty cycle of on-off valve and oil pressure of clutch was determined. The tracking effect was analyzed by simulation. Results showed that oil pressure could follow well the optimal trajectory and the shift quality was effectively improved.

Suggested Citation

  • Junqiu Li & Yihe Wang & Jianwen Chen & Zongping He, 2016. "Study on Oil Pressure Characteristics and Trajectory Tracking Control in Shift Process of Wet-Clutch for Electric Vehicles," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-11, March.
    • Handle: RePEc:hin:jnlmpe:4869891
    DOI: 10.1155/2016/4869891
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