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Separation of Transmission and Driveline Imbalances and Its Application
Technical Paper
2009-01-2061
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
Imbalances of an automatic transmission have a direct impact on NVH. To measure those imbalances, one needs to overcome two hurdles: (1) Phase uncertainty of individual component imbalance due to clutch indexing; (2) Imbalance separation of transmission from other systems, such as driveshaft and engine crank, connected to the transmission.
To attack those issues, an algorithm has been developed which can deal with the phase issue caused by clutch engagement, and separate transmission imbalance at the system level without individually measuring other system imbalances. The method has been verified with several vehicle programs in both vehicle and dynamometer tests.
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Authors
Citation
Yu, S. and Higley, R., "Separation of Transmission and Driveline Imbalances and Its Application," SAE Technical Paper 2009-01-2061, 2009, https://doi.org/10.4271/2009-01-2061.Also In
References
- Bishop, R. E. D. Parkinson, A.G. “ On the Use of Balancing Machines for Flexible Rotors ,” Journal of Engineering for Industry 94 2 561 576 1972
- Higley, R. Hiatt, J. “ Errors in the Driveline System Balancing Process ” SAE 2001-01-1504 2001
- Liu, C. Q. “ Measurement of Transfer Case Imbalance ” SAE 2005-01-2297 2005