This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Automatic Transmission Shift Schedule Control Using Fuzzy Logic
Annotation ability available
Sector:
Language:
English
Abstract
The use of automatic transmissions is continually increasing because of their ease of operation. Transmission performance requirements that have become more important in recent years include smooth shift quality and a shift schedule that matches the driver's intentions. An electronically controlled automatic gearbox, which sets the shift schedule according to the vehicle speed and throttle valve opening, provides a dramatic improvement in shift quality over its hydraulically controlled counterpart. However, even with an electronically controlled automatic transmission, shift hunting occurs when driving uphill or towing an object Based on the use of fuzzy logic, a technique has been developed for estimating running resistance, represented by the road gradient. This technique has been incorporated in a new shift schedule control method that eliminates shin hunting Research is now under way on a fuzzy logic technique for inferring the driver's intention to accelerate
Recommended Content
Authors
Topic
Citation
Yamaguchi, H., Narita, Y., Takahashi, H., and Katou, Y., "Automatic Transmission Shift Schedule Control Using Fuzzy Logic," SAE Technical Paper 930674, 1993, https://doi.org/10.4271/930674.Also In
References
- The University of Michigan, DELPHI IV 2 “Technology,” 172 173
- Schike Neil A. et al. “Integrated Vehicle Control,” International Congress on Transportation Electronics Proceedings 1988 97 106
- Shinohara M. et al. “Nissan Electronically Controlled Four-Speed Automatic Transmission,” SAE Paper 890530
- Narita Yasushi “Improving Automatic Transmission Quality by Feedback Control with a Turbine Speed Sensor,” SAE Paper 911938