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Race Motorcycle Smart Wheel
ISSN: 1946-3995, e-ISSN: 1946-4002
Published April 14, 2015 by SAE International in United States
Citation: Gobbi, M., Mastinu, G., Ballo, F., and Previati, G., "Race Motorcycle Smart Wheel," SAE Int. J. Passeng. Cars - Mech. Syst. 8(1):119-127, 2015, https://doi.org/10.4271/2015-01-1520.
A wheel able to measure the generalized forces at the hub of a race motorcycle has been developed and used. The wheel has a very limited mass. It is made from magnesium with a special structure to sense the forces and provide the required level of stiffness. The wheel has been tested both indoor for preliminary approval and on the track.
The three forces and the three moments acting at the hub can be measured with a resolution of 1N and 0.3Nm respectively.
A specifically programmed DSP (Digital Signal Processor) embedded in the sensor allows real-time acquisition and processing of the six signals of forces/torques components.
The signals are sent via Bluetooth to an onboard receiver connected to the vehicle CAN (Controller Area Network) bus. Each signal is sampled at 200Hz.
The wheel can be used to derive the actual tyre characteristics or to record the loads acting at the hub.
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