This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Torque Converter Clutch Slip Control with Friction Uncertainty
Annotation ability available
Sector:
Language:
English
Abstract
This paper presents and compares two approaches for the torque converter clutch slip control when the friction coefficient of the clutch has uncertainty. The main objective of the clutch slip control is to improve the fuel efficiency of a vehicle with an automatic transmission. One important issue of the clutch slip control is to maintain good performance when the clutch friction coefficient changes as the slip speed changes. This problem becomes a challenge if the friction coefficient decreases significantly as the slip speed increases, since the system may become unstable under this circumstance. In this paper the rate of the friction coefficient change to the slip speed change is considered as the variable of robustness to test the designed controllers.
Recommended Content
Authors
Citation
Lew, J., "Torque Converter Clutch Slip Control with Friction Uncertainty," SAE Technical Paper 960432, 1996, https://doi.org/10.4271/960432.Also In
Transmission and Driveline Systems Symposium: Efficiency, Components, and Materials
Number: SP-1154; Published: 1996-02-01
Number: SP-1154; Published: 1996-02-01
References
- Hiramatsu, T. Akagi, T. Yoneda, H. “Control Technology of Minimal Slip-Type Torque Converter Clutch,” SAE Paper 850460 1985
- Kono, K. Itoh H. Nakamura, S. Yoshizawa, K. Osawa, M. “Torque Converter Clutch Slip Control System,” SAE paper 950672 1995
- Sawanobori, T. Suehiro, K. “An Analysis of Clutch Judder,” SAE paper 951318 1995
- Yamada, N. Ando, K. “An Analysis of Clutch Self-Excited Vibration in Automotive Drive Line,” SAE Paper 951319 1995
- Doyle, J. C. Francis, B. A. Tannenbaum, A. R. Feedback Control Theory Macmillan Publishing Co. New York 1992
- Pan C.-H. Moskwa, J. “Dynamic Modeling and Simulation of the Ford AOD Automobile Transmission,” SAE Paper 950899 1995
- Bhattacharyya, S. P. Chapellat, H. Keel, L. H. Robust Control: The Parametric Approach Prentice-Hall, Inc. Englewood Cliffs, New Jersey 1995
- MATLAB User's Guide MathWorks, Inc. Natich, MA 1992
- Moore, B. C. “Principal Component Analysis in Linear System: Controllability, Observability, and Model Reduction,” IEEE Transaction on Automatic Control AC-26 17 31 1981