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The Automated Shift Transmission (AST) - Possibilities and Limits in Production-Type Vehicles
Technical Paper
2001-01-0881
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
State-of-the-art powertrain concepts with automatic transmission must comply with increasingly stringent legislation on emissions and fuel consumption while fulfilling or surpassing customers' expectations as to driveability. In this respect, automated manual transmissions (AMT) and automated shift transmissions (AST) must compete with conventional automatic transmissions (AT) and continuously variable transmissions (CVT).
In order to exploit the theoretical advantages of ASTs and put them into practice, complex ECU functions are needed to coordinate engine and transmission. Adaptive control, sophisticated clutch management and an intelligent shifting strategy allow shifting quality and shifting points to be simultaneously optimized to the effect that performance and comfort are increased while fuel consumption is reduced.
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Authors
Topic
Citation
Link, M., Voß, B., Eggert, E., and Nasdal, R., "The Automated Shift Transmission (AST) - Possibilities and Limits in Production-Type Vehicles," SAE Technical Paper 2001-01-0881, 2001, https://doi.org/10.4271/2001-01-0881.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
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