Electric bicycles using friction drive technology have several known issues that are holding large scale deployment. Indeed, performance drop in presence of rain and fast wearing in case of roller slippage are two significant problems facing companies like Alizeti, an conversion kit manufacturer for electric bicycles. This thesis proposes to design an anti-slip system to be integrated on Alizeti’s products without hardware modifications.
The main objective of the research project is to design an anti-slip system based on the extended Kalman filter technique to estimate the slip ratio between the roller and the bicycle wheel. This estimation is used to control the electric assistance torque provided to the cyclist. In order to achieve this goal, the electric bicycle model is developed, then discretized to be incorporated in an estimator. A classifier and a regulator were developed for this application.
The antipslip system is validated by simulation and by practical tests performed with a functional prototype of the Alizeti conversion kit for electric bicycles.
| Date | 5 Jun 2018 |
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| Original language | French |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Lyne Woodward (Supervisor) |
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Longchamp, J. (Author),
Woodward (Supervisor),
5 Jun 2018Student thesis: Master's thesis › Master in Engineering: Electrical Engineering