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.
Claims25
A method for determining calibration data for a sensorized brake pad that comprises force sensors configured to output signals in response to force applied to the sensorized brake pad, the method comprising:
- retaining the sensorized brake pad in a fixture in a calibration machine, the calibration machine external to a vehicle;
- controlling the calibration machine to adjust an angle θ between a force direction of an actuator of the calibration machine and a plane formed by a surface of a friction element of the sensorized brake pad, the adjusted angle θ being non-orthogonal;
- applying, with the actuator of the calibration machine, force to the sensorized brake pad in the force direction to apply both normal and shear forces to the surface of the friction element;
- receiving signals outputted from the force sensors while the force is being applied to the sensorized brake pad;
- determining calibration data for the sensorized brake pad based on the signals;
- storing the calibration data into a memory;
- and
- providing the calibration data to a user for installing in a controller of a vehicle on which the sensorized brake pad is installed.
A method for determining calibration data for a sensorized brake pad that comprises one or more force sensors configured to output signals in response to force applied to the sensorized brake pad, the method comprising:
- retaining the sensorized brake pad in a calibration machine, the calibration machine external to a vehicle;
- applying, with a first actuator of the calibration machine, force to the sensorized brake pad in a force direction of the first actuator, a first angle formed between the force direction of the first actuator and a plane formed by a surface of a friction element of the sensorized brake pad;
- applying, with a second actuator of the calibration machine, force to the sensorized brake pad in a force direction of the second actuator, a second angle formed between the force direction of the second actuator and the surface of the friction element, the second angle different than the first angle;
- receiving signals outputted from the one or more force sensors while the force is being applied to the sensorized brake pad by the first actuator and while the force is being applied to the sensorized brake pad by the second actuator;
- determining calibration data for the sensorized brake pad based on the signals;
- and
- storing the calibration data into a memory.
Dependencies are inferred from the claim text.