CONTROL TECHNOLOGY OF MINIMAL SLIP-TYPE TORQUE CONVERTER CLUTCH

If a torque converter clutch is allowed to slip to a minimal amount, engine torque can be transmitted through a transmission without torque variation problem, and also low fuel consumption is realized by putting the clutch in operation even at low engine revolution. Oil pressure applied to clutch is electronically feedback-controlled to keep clutch slip to a minimal amount. But this feedback system tends to become unstable by impairment of various factors of the system. This paper relates to the stability analysis of feedback system, and especially to the control method by which feedback system can be made stable even when microvolts characteristic of clutch facing material is impaired.

  • Supplemental Notes:
    • Published in SP-619, Passenger Car Transmissions.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Hiramatsu, T
    • AKAGI, T
    • Yoneda, H
  • Publication Date: 1985-2

Media Info

  • Features: Figures; References;
  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00399152
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 850460, HS-038 861
  • Files: HSL, USDOT
  • Created Date: Sep 30 1985 12:00AM