System and method for determining a braking torque by means of a force detection device at an interface between a brake caliper body and a hub holder

A system for measuring a braking torque resulting from actuation of a braking system for a vehicle, by a detection carried out at at least one fixing interface between a braking caliper and a respective hub holder or brake caliper support,

• wherein the system comprises:
• at least one detection device for detecting a braking force, exerted by a brake caliper on a hub holder or brake caliper support, upon a braking event and due to a braking event, said detection device being configured to be mounted at a fixing interface between the brake caliper and the hub holder or brake caliper support, by tightening means exerting a tightening force, wherein the detection device comprises:
• a low-friction body, shaped like one of a washer, a plate, and a bearing;
• a caliper-hub-holder connection element, connected to and integral with said low-friction body,
• wherein the caliper-hub-holder connection element is configured to be mechanically connected, when the detection device is mounted at the fixing interface, both to the brake caliper and to the hub holder or brake caliper support, so as to result in a mechanical connection through which said braking force is at least partially discharged from the brake caliper to the hub holder or brake caliper support,
• wherein the caliper-hub-holder connection element is susceptible of deformation, so that deformations and/or strains locally present in the caliper-hub-holder connection element depend on an overall force acting on the caliper-hub-holder connection element,
• wherein said low-friction body is configured to decouple tightening forces from braking forces to minimize an effect of the tightening forces on the detection device so that said deformations and/or strains locally present in the caliper-hub-holder connection element are representative of the braking force exerted by the brake caliper on the hub holder or brake caliper support by the caliper-hub-holder connection element;
• wherein the detection device further comprises:
• at least one sensor element, operatively connected to the caliper-hub-holder connection element, configured to detect a deformation and/or a strain present in the caliper-hub-holder connection element and generate at least one electrical signal indicative of the deformation and/or strain detected, and representative of the braking force;
• and
• an electrical interface connected to said at least one sensor element for conducting and providing said at least one generated electrical signal, the at least one detection device pressed between a brake caliper body of the brake caliper and the hub holder or brake caliper support, at a respective at least one fixing interface;
• tightening means configured to tighten the brake caliper and the hub holder or brake caliper support, and press the detection device between the brake caliper body of the brake caliper and the hub holder or brake caliper support;
• and
• electronic processing means, operatively connected to said electrical interface to receive said at least one electrical signal,
• said electronic processing means being configured to determine the braking torque based on said at least one electrical signal representative of the braking force acting on a respective detection device.