SENSORIZED BRAKING DEVICE FOR A VEHICLE, A PIEZOELECTRIC SHEAR FORCE DETECTING SENSOR, AND A SHEAR FORCE DETECTING METHOD
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Jun 13, 2022
filing date -
Jun 13, 2022
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Abstract
The sensorized braking device (1) for a vehicle, comprising at least one piezoelectric sensor (2) for measuring shear force, an electrical circuit (12) configured to collect signals from the sensor (2), wherein the sensor (2) comprises a piezoelectric material (3), a first and at least a second readout electrode (6, 7), wherein the piezoelectric material (3) comprises a first flat face (4) and a second flat face (5) facing the first flat face (4), the first and second flat faces (4, 5) extending in parallel planes identified by two orthogonal directions y and z, wherein the piezoelectric material (3) is polarized in the z direction, wherein the first electrode (6) is positioned on the first face (4) and the second electrode (7) is positioned on the second face (5) and has at least one extension (7a, 7b) on the first face (4) separated from the first electrode (6), and wherein the extension (7a. 7b) of the second electrode (7) is arranged symmetrically with respect to the y- and z-axes.
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