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Development of Shift Control Algorithm Using Estimated Turbine Torque
Technical Paper
2000-01-1150
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
The powertrain of an automatic transmission has a wide operating range in speed, torque and temperature while driving. It is necessary to know them to achieve good shift quality in various operating conditions without tuning the parameters of the shift quality controller. All but the torque sensor is installed in the automatic transmission because of its high cost. In this study, a more precise algorithm is suggested for estimating turbine torque using a neural network model that has three inputs, i.e., engine speed, turbine speed and temperature. The performance of the suggested turbine torque estimation algorithm is validated through experimental results. To utilize the estimated turbine torque in shift control, a shift control algorithm, which shows good shift quality in various operating conditions, is developed. Good shift quality is obtained irrelevant to the variation of the driving torque and load torque, when the proposed shift control algorithm is applied to the 2-3 power-on upshift in the automatic transmission dynamometer
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Authors
Citation
Shin, B., Hahn, J., and Lee, K., "Development of Shift Control Algorithm Using Estimated Turbine Torque," SAE Technical Paper 2000-01-1150, 2000, https://doi.org/10.4271/2000-01-1150.Also In
SAE 2000 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V109-6; Published: 2001-09-15
Number: V109-6; Published: 2001-09-15
References
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- Minowa T. Ochi T. Kuroiwa H. Liu K.Z. “Smooth Gear Shift Control Technology for Clutch-to-Clutch Shifting,” SAE 1999-01-1054
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- Shin B.K. Jung G.H. Lee K.I. “The modeling and Analysis of the Powertrain in a Automatic Transmission for Passenger Cars,” Proceedings of KSME 730 737 Fall 1998
- Hur J.W. Han S.S. Lee K.I. “Development and analysis of hydraulic system in automatic transmission using directly driven clutch system,” Proceedings of the 13th KACC 1441 1444 1998
- Megli T.W. Haghgooie M. Colvir D.S. “Shift Characteristics of a 4-speed Automatic Transmission,” SAE 1999-01-1060