Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Shift-transient characteristics of an automatic transmission

자동변속기의 변속과도특성 해석

  • Chang, Hyo-Whan (Dept.of Mechanical Engineering, Korea University) ;
  • Jun, Yoon-Sik (Dept.of Mechanical Engineering, Graduate School of Korea University)
  • 장효환 (고려대학교 기계공학과) ;
  • 전윤식 (고려대학교 대학원 기계공학과)
  • Published : 1998.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Shift quality of an automatic transmission in a vehicle is mainly affected by transient pressures in the hydraulic system during shifting. In this study, dynamic modelings of the hydraulic system and the power train of an automatic transmission are made systematically by a bond-graph method. The dynamic characteristics of the line pressures and clutch/brake pressures during shiftings are investigated by simulations and verified by experiments. The effects of clutch/brake pressures on the shift torque are also investigated through driving simulation.

Keywords