公开(公告)号：US09415757B2

公开(公告)日：2016-08-16

申请号：US14106262

申请日：2013-12-13

Applicant: ITT ITALIA S.r.l.

Inventor： Luca Martinotto ,  Fabrizio Merlo ,  Daniele Donzelli

IPC: B60T7/22 ,  F16D66/00 ,  F16D65/092 ,  B60T17/22 ,  F16D65/00 ,  F16D66/02 ,  F16D69/00

CPC classification number: F16D66/00 ,  B60T17/22 ,  F16D65/0006 ,  F16D65/08 ,  F16D65/092 ,  F16D66/026 ,  F16D69/00 ,  F16D2066/001 ,  F16D2066/005 ,  F16D2069/006 ,  G01L1/16 ,  G01L5/225 ,  G01L5/28 ,  Y10T29/42

Abstract: A method in which at least one piezoceramic sensor, which converts every mechanical force to which it is subjected into an electrical signal and having a Curie temperature higher than 200° C., is solidarized directly onto the surface of a metal support element of a vehicle braking element, which during use faces a vehicle element to be braked. While in contact with such a surface, an electrical circuit is implemented that picks up and eventually processes the electrical signal, the electrical circuit being connected with a connector integrated with the metal support element. An electrically insulating layer sandwiches the at least one piezoceramic sensor and the electrical circuit, and a block of friction material with an underlying damping layer is formed upon the electrically insulating layer. After forming the block of friction material, the piezoceramic sensor is polarized by applying a predetermined potential difference thereto by means of the connector.

Abstract translation: 将至少一个压电陶瓷传感器转换成车辆的金属支撑元件的表面的至少一个压电陶瓷传感器，其将其经受电信号并且具有高于200℃的居里温度的每个机械力转换 制动元件在使用期间面对要制动的车辆元件。 在与这种表面接触的同时，实现拾取并最终处理电信号的电路，电路与与金属支撑元件集成的连接器连接。 电绝缘层夹着至少一个压电陶瓷传感器和电路，并且在电绝缘层上形成具有下面阻尼层的摩擦材料块。 在形成摩擦材料块之后，压电陶瓷传感器通过借助于连接器施加预定的电位差来极化。

公开(公告)号：US20250075762A1

公开(公告)日：2025-03-06

申请号：US18681002

申请日：2022-06-13

Applicant: ITT Italia S.R.L.

Inventor： Marco Terranova ,  Stefano Serra ,  Gianmaria Milani ,  Cesare Zangari

IPC: F16D66/00 ,  G01L1/16

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.

公开(公告)号：US20240241003A1

公开(公告)日：2024-07-18

申请号：US18563172

申请日：2022-04-12

Applicant: ITT ITALIA S.R.L.

Inventor： Pietro Roberto Macchi ,  Umberto Vignolo ,  Marco Terranova ,  Stefano Serra

IPC: G01L5/28 ,  B60T17/22 ,  F16D66/00

CPC classification number: G01L5/28 ,  B60T17/22 ,  F16D66/00 ,  F16D2066/001 ,  F16D2066/005 ,  F16D2066/006

Abstract: A method for estimating the residual torque between the braked and braking elements of a vehicle that is characterized by the following phases: acquisition of the temperature value of said braking element; determination of whether said brake is activated when the temperature value is acquired; acceptance of the acquired temperature value if said brake is not activated at said acquisition time; if the acquired temperature value is accepted, automatically calculating a reference temperature using input from an N-dimensional calculation model with an N-dimensional vector of input variables; where said N-dimensional vector of variables includes at least the acquired temperature of said braking element; where said N-dimensional calculation model is an analytical or experimental characterization of the thermal behavior of the brake; estimating residual torque by comparing the accepted acquired temperature to the calculated reference temperature.

公开(公告)号：US12036696B2

公开(公告)日：2024-07-16

申请号：US17270250

申请日：2019-08-23

Applicant: ITT Italia S.R.L.

Inventor： Agustin Sin Xicola ,  Francesco Vannucci ,  Paolo Colombo ,  Alberto Conte

IPC: B28B1/54 ,  C04B12/00 ,  C04B14/10 ,  C04B18/08 ,  F16D69/02 ,  C04B14/48

CPC classification number: B28B1/54 ,  C04B12/005 ,  C04B14/106 ,  C04B18/08 ,  F16D69/028 ,  C04B14/48 ,  F16D2200/0034 ,  F16D2200/006 ,  F16D2200/0095

Abstract: Method for creating a brake pad with a block of friction material, in which sodium hydroxide and sodium silicate are dissolved in water, the aqueous solution of sodium hydroxide and sodium silicate is mixed with commercial metakaolin until a wet paste is obtained, the wet paste is formed and dried until a dried geopolymeric aggregate is obtained, the aggregate is ground to a powder, the dried ground aggregate is used as an exclusive or almost-exclusive inorganic geopolymeric binder in a friction material compound and the raw compound is hot-molded under a pressure greater than a water saturation pressure at the molding temperature.

公开(公告)号：US20230349434A1

公开(公告)日：2023-11-02

申请号：US18026777

申请日：2021-09-17

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Andrea ISOARDI ,  Laura RINALDI ,  Daniele GENTA ,  Flavio TROMBOTTO

IPC: F16D65/04 ,  F16D69/02

CPC classification number: F16D65/04 ,  F16D69/026 ,  F16D2200/006 ,  F16D2250/0007 ,  F16D2250/0084

Abstract: Friction block or layer made of an asbestos free friction material, the friction material including, as composing materials thereof, inorganic and/or organic and/or metallic fibers, at least a binder, at least a friction modifier or lubricant and at least a filler or abrasive, wherein the asbestos free friction material also contains, as an additional composing material or additive, an hydrophobic wax, preferably present from 0.5% to 5% in volume, the asbestos free friction material block or layer possessing a hydrophobicity, defined as the time of absorption within the friction material of a liquid drop formed by 20+/−5 μL of distilled water, of more than 60 minutes, so that the force to detach the friction block or layer from a metallic surface to which it has been made to stitch electrochemically is lower than 15 Nw.

公开(公告)号：US11661987B2

公开(公告)日：2023-05-30

申请号：US16584514

申请日：2019-09-26

Applicant: ITT ITALIA S.r.l.

Inventor： Stefano Serra ,  Daniele Donzelli ,  Marco Terranova ,  Mattia Solari ,  Luca Martinotto

IPC: F16D66/00 ,  G01L1/16 ,  B60T17/22 ,  B60T8/88 ,  F16D66/02 ,  G01L5/28 ,  F16D55/225

CPC classification number: F16D66/00 ,  B60T8/885 ,  B60T17/22 ,  F16D66/021 ,  F16D66/028 ,  G01L1/16 ,  B60T2270/406 ,  F16D55/225 ,  F16D2066/001 ,  F16D2066/003 ,  F16D2066/005 ,  F16D2066/006 ,  G01L5/284

Abstract: Methods, devices, and systems, for analyzing and managing data generated by a sensor-equipped braking system for vehicles, comprising a support element a block of friction material, at least one sensor interposed between the block of friction material and the support element, comprising at least one central control unit capable of receiving in real time from the sensor means at least the basic data related to one or more of the pressure of the activated braking system, the temperature of the activated braking system, the braking torque, the residual braking torque when the braking system is deactivated, and the wear on the braking system during and after activation thereof. The system can also include one or more auxiliary sensors.

公开(公告)号：US20220364620A1

公开(公告)日：2022-11-17

申请号：US17875175

申请日：2022-07-27

Applicant: ITT ITALIA S.R.L.

Inventor： Mattia Solari ,  Marco Terranova

IPC: F16D66/02 ,  B60T17/22 ,  F16D65/08

Abstract: Various residual braking torque indication devices, systems, and methods are described. The devices, systems, and methods can include a sensorized brake pad. An output signal of the sensorized brake pad can be processed to provide an indication of a residual braking torque. The residual braking torque indicator can be calibrated to reference data to provide an actual measurement of the residual braking torque.

公开(公告)号：US11441629B2

公开(公告)日：2022-09-13

申请号：US16584429

申请日：2019-09-26

Applicant: ITT ITALIA S.r.l.

Inventor： Mattia Solari ,  Marco Terranova

IPC: F16D66/02 ,  B60T17/22 ,  F16D65/08 ,  F16D66/00 ,  F16D121/28

Abstract: Various residual braking torque indication devices, systems, and methods are described. The devices, systems, and methods can include a sensorized brake pad. An output signal of the sensorized brake pad can be processed to provide an indication of a residual braking torque. The residual braking torque indicator can be calibrated to reference data to provide an actual measurement of the residual braking torque.

公开(公告)号：US11280721B2

公开(公告)日：2022-03-22

申请号：US16330364

申请日：2017-09-05

Applicant: ITT ITALIA S.R.L.

Inventor： Agustin Sin Xicola ,  Lorenzo Fedrizzi ,  Francesco Andreatta ,  Alessandro De Nicolo

IPC: G01N17/02 ,  G01N27/416 ,  G01N27/48 ,  B60T8/172 ,  G01N19/04

Abstract: Methods and equipment for determining conditions of adhesion between a first and a second mechanical element are disclosed. The mechanical elements are attached respectively to a first and second support, which are immersed in an electrolyte together with a counter-electrode and a reference electrode to form an electrochemical cell. The second mechanical element is a working electrode being connected to an insulated electric wire that is also connected to the counter-electrode. A first uncovered face of the second element is pressed against the first element. A potential is applied to the second element of at least one predetermined value and/or a predetermined electrical current. The method can include detecting the electrical current that is transmitted through the electrolyte as a function of the potential applied and/or the potential that is established as a function of the predetermined current.

公开(公告)号：US20210388878A1

公开(公告)日：2021-12-16

申请号：US17327146

申请日：2021-05-21

Applicant: ITT Italia S.r.l.

Inventor： Stefano Serra ,  Daniele Donzelli ,  Mattia Solari ,  Marco Terranova

IPC: F16D66/00 ,  F16D65/092 ,  G01L5/28 ,  F16D55/226 ,  F16D65/00 ,  F16D65/18 ,  F16D66/02

Abstract: Various systems, devices, and methods for detecting and/or responding to the temperature of brakes are disclosed. Certain embodiments relate to inhibiting or preventing the overheating of the brakes of such vehicles, such as could occur when a hot runner condition is present.