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Development of a Feedback System to Control Power in Cycling
- Source :
- Proceedings, Vol 49, Iss 1, p 22 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- Here we seek to control mechanical power output in outdoor cycling by adjusting commanded cadence of a cyclist. To understand cyclist’s dynamic behavior, we had one participant match their cadence to a range of commanded cadences. We then developed a mathematical model that predicts the actual mechanical power as a function of commanded cadence. The average absolute error between the predicted power of our model and the actual power was 15.9 ± 11.7%. We used this model to simulate our closed-loop controller and optimize for proportional and integral controller gains. With these gains in outdoor cycling experiments, the average absolute error between the target and the actual power was 3.2 ± 1.2% and the average variability in power was 2.9 ± 1.3%. The average responsiveness, defined as the required time for the actual power to reach 95% of the target power following changes in target power, was 7.4 ± 2.0 s.
- Subjects :
- cycling power
feedback control
cycling performance
model
cadence
General Works
Subjects
Details
- Language :
- English
- ISSN :
- 25043900
- Volume :
- 49
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Proceedings
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.bb90036d65ab46e3a3a1ab1c01b77c76
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/proceedings2020049022