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Characterization of an Adjustable Centrifugal Continuously Variable Transmission for a Baja SAE Prototype.
Technical Paper
2010-01-0861
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Motivated by the continually growing challenge of the Baja SAE competition, the primary goal of the present study is to understand the behavior of the Continuously Variable Transmission (CVT), manufactured by CVTech-IBC® for Baja SAE vehicles, and understand the way in which each element of the calibration kit (masses, drive pulley spring, and driven pulley spring) provided by the manufacturer affect this behavior. A characterization procedure for the particular engine-CVT couple employed is defined by establishing the variables to be studied and a test protocol. An ad-hoc dynamometer was designed and built, able to measure drive pulley's rpm, driven pulley's rpm, and torque on the output shaft. Then, Power versus Output rpm charts for each configuration is generated for each possible combination of the calibration kit elements. Finally describing how each of these elements changes the CVT behavior. A lap simulator for the different events combined with the measured drivetrain curves is devised to select the best configuration for overall performance in the competition.
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Authors
Citation
Martinez, J., Corona, D., Diaz, S., and Boccardo, R., "Characterization of an Adjustable Centrifugal Continuously Variable Transmission for a Baja SAE Prototype.," SAE Technical Paper 2010-01-0861, 2010, https://doi.org/10.4271/2010-01-0861.Also In
References
- SAE International “2009 Baja SAE Competition Rules” Nov. 2008
- Andrew, Fox “Design and Analysis of a Modified Power Split Continuously Variable Transmission” West Virginia University Morgantown - Virginia 2003
- CVTech-IBC “CVTech-IBC Student Support” http://www.cvtech-ibc/client/uploads/Libraries/Fichiers/minibajasponsorship2007_254559.pdf Sept. 2008
- Briggs Racing Stratton “INTEK OHV 305 Performance Data” http://www.briggsracing.com/racing_engines/model20 Jan. 2008
- Kim, T Kim, H. “Performance of integrated engine-CVT control considering powertrain loss and CVT response lag.” Institution of Mechanical Engineer - Journal of Automobile Engineering 216 545 553 2002