Sensorized brake pad calibration machines, systems, and methods
AssigneeITT Italia S.r.l.
InventorsStefano Serra, Mattia Solari, Laura Meduri, Paolo Truccone
Life of this patent
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Abstract
Various machines, systems, and methods for generating calibration data for a sensorized brake pad are disclosed. In some embodiments, a system includes a fixture, a brake pad retainer, a pressure plate, an actuator and a controller. The actuator applies a pressure to the sensorized brake pad and signals from the pressure sensors are received. Calibration data is generated based on the signals received from the pressures sensors when the pressure is applied to the sensorized brake pad.
Claims20
A machine for determining calibration data for a sensorized brake pad, the sensorized brake pad having pressure sensors configured to detect pressure applied to friction material of the sensorized brake pad, the machine comprising:
- a fixture;
- a brake pad retainer supported by the fixture and configured to hold the sensorized brake pad fixed relative to the fixture;
- a pressure plate configured to contact the friction material of the sensorized brake pad;
- an actuator supported by the fixture at a first end and connected to the pressure plate at a second end;
- and
- a controller comprising:
- an actuator control portion configured to control the actuator to apply a pressure to the pressure plate such that the sensorized brake pad is compressed between the pressure plate and the brake pad retainer,
- a pressure sensor signal receiving portion configured to receive signals from the pressure sensors when the pressure is applied to the sensorized brake pad, and
- a calibration data generator configured to generate calibration data based on the signals received from the pressure sensors when the pressure is applied to the sensorized brake pad.
A calibration machine for determining calibration data for a sensorized brake pad, the sensorized brake pad having sensors configured to output signals indicative of normal and shear forces applied to the sensorized brake pad, the calibration machine comprising:
- a fixture;
- a normal force assembly connected with the fixture, the normal force assembly comprising:
- a normal force applicator configured to contact a first side of the sensorized brake pad;
- and
- a normal force actuator configured to apply, via the normal force applicator, a normal force to the first side of the sensorized brake pad;
- a torque assembly connected with the fixture, the torque assembly comprising:
- a platen configured to contact a second side of the sensorized brake pad;
- and
- a torque actuator configured to apply, via the platen, a torque to the second side of the sensorized brake pad;
- an electrical connector configured to selectively connect with the sensorized brake pad and to convey the output signals from the sensorized brake pad;
- and
- a controller configured to control operation of the normal force actuator and the torque actuator, to receive the output signals from the sensors of the brake pad, and to determine calibration data for the sensorized brake pad at least in part based on the output signals.
Dependencies are inferred from the claim text.