DEVELOPMENT OF AUTOMATIC CLUTCH ACTUATOR FOR AUTOMATED MANUAL TRANSMISSIONS

  • MOON S. E. (JATCO Korea Engineering Crop.,) ;
  • KIM H. S. (School of Mechanical Engineering, Sungkyunkwan University) ;
  • HWANG S. H. (School of Mechanical Engineering, Sungkyunkwan University)
  • Published : 2005.10.01

Abstract

With the growing traffic density and increasing comfort requirements, the automation of the drive train has gained importance in vehicles. The automatic clutch actuation relieves a driver especially in urban and stop-and-go traffic environments. In this paper, an electro-mechanical actuator for clutch-by-wire (CBW) system is implemented as the first stage for the development of automated manual transmissions. The prototype of the automatic clutch actuator is designed systematically, which is composed of the electric motor, worm and worm wheel, and crank mechanism. A test rig is developed to perform the basic function test for the automatic clutch actuation. The developed prototype is validated by the experimental results performed on the test rig.

Keywords

References

  1. Cho, S. H. (1985). Kinematics of Machinery. Moonwoondang. Seoul. 107-110
  2. Fischer, R. and Berger, R. (1998). Automation of manual transmissions. 6th Int. Luk Symposium, Germany, 95-121
  3. Gao, H., Barber, G. C. and Chu, H. (2002). Friction characteristics of a paper-based friction material. Int. J. Automotive Technology 3,4, 171-176
  4. Kremmling, B. and Fischer, R. (1998). The automated clutch - the new Luk ECM. 6th Int. Luk Symposium, Germany, 85-106
  5. Nordgard, K. and Hoonorst, H. (1995). Developments in automated clutch management system. SAE Paper No. 950896
  6. Pollak, B. (2002). Electro-mechanical actuators. 7th Int. Luk Symposium, Germany, 173-183
  7. Rha, W. (2003). A development of clutch-by-wire system for automotive. Trans. Korean Society Autumotive Engineers 11,3, 204-208
  8. Szadkowski, A. and Morford, R. B. (1992). Clutch engagement simulation: engagement without throttle. SAE Paper No. 920766
  9. Szadkowski, A. and McNerney, G. J. (1992). Clutch engagement simulation: engagement with throttle. SAE Paper No. 922483
  10. Shaver, R. (1997). Manual Transmission Clutch System. SAE
  11. Valeo Transmissions, (2002). Clutch-by-wire - a new generation of clutch pedal actuators. Global Automotive Manufacturing & Technology. 1-6