公开(公告)号：US20140311833A1

公开(公告)日：2014-10-23

申请号：US14106262

申请日：2013-12-13

Applicant: ITT ITALIA S.r.l.

Inventor： Luca Martinotto ,  Fabrizio Merlo ,  Daniele Donzelli

IPC: B60T17/22 ,  F16D66/00 ,  F16D65/092

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：US20250052290A1

公开(公告)日：2025-02-13

申请号：US18722679

申请日：2022-12-21

Applicant: ITT Italia S.R.L.

Inventor： Stefano BARALE ,  Simone COGNO ,  Andrea DELLA ROVERE ,  Daniele DONZELLI ,  Filippo GEDDA ,  Aldo CANOVA ,  Fabio FRESCHI

IPC: F16D65/00 ,  B32B15/04 ,  B32B15/18 ,  F16D65/092 ,  F16D127/00 ,  F16D129/06 ,  H05B6/10

Abstract: Braking system (1) and method aimed to produce a forced increase in a damping layer (7) temperature of a brake pad (3), arranged between a metal support (5) and a friction material block (6) thereof, wherein the damping layer (7) is heated such as to stay at a temperature above a glass transition temperature of rubber components thereof, so assuring a maximum damping behavior; the heating is caused by magnetic induction generated by one or more electrically conducting coils (15) fed in AC by a power source (10) carried by the vehicle and arranged either integrated in the brake pad (3), e.g. carried by the support (5), or in the vicinity thereof.

公开(公告)号：US12025551B2

公开(公告)日：2024-07-02

申请号：US17671472

申请日：2022-02-14

Applicant: ITT ITALIA S.R.L.

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

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

CPC classification number: G01N17/02 ,  G01N27/4161 ,  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：US20240151287A1

公开(公告)日：2024-05-09

申请号：US18281194

申请日：2022-03-09

Applicant: ITT ITALIA S.R.L.

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

IPC: F16D66/02

CPC classification number: F16D66/027 ,  F16D2066/001

Abstract: A method of estimating wear of a vehicle brake element including at least a braking disk (10), a wearable block of friction material (20) and a support back plate (40) of the block of friction material (20), comprising at least: —providing a temperature sensor (100) configured and placed to sense the temperature of the support back plate (40) —providing an Electronic Processing Unit (200) connected to the temperature sensor (100); —providing an acquisition of the sensed temperature of the support back plate (40), a generation of a temperature signal of the sensed temperature and a transmission of the temperature signals to the Electronic Processing Unit (200); —and the Electronic Processing Unit (200) providing an estimation (500) of the thickness of the wearable block of friction material (20) by processing of the temperature signals.

公开(公告)号：US11821484B2

公开(公告)日：2023-11-21

申请号：US17963452

申请日：2022-10-11

Applicant: ITT ITALIA S.R.L.

Inventor： Paolo Galimberti ,  Marco Belli ,  Sergio Ferrero

IPC: B32B41/00 ,  F16D69/04

CPC classification number: F16D69/0408 ,  F16D69/04 ,  F16D2069/0425 ,  F16D2069/0466 ,  F16D2069/0491 ,  F16D2200/0004

Abstract: Method and plant for manufacturing braking elements such as vehicle brake pads. The plant can comprise a first station that applies an adhesive to a first face of a metallic element; a second station that applies to the first face of the metallic element a block of friction material; a checking station that verifies the presence of the adhesive by detecting the gray level of a plurality of points of at least one zone of the first face; and a processing unit that compares the gray level detected for each point with a first threshold value, counts the number of points that have a gray level that satisfies a relationship (which is a function of the threshold value,) and compares such a value with a second threshold value to discard those metallic elements for which the percentage calculated does not correspond to the second threshold value.

公开(公告)号：US11767896B2

公开(公告)日：2023-09-26

申请号：US17033532

申请日：2020-09-25

Applicant: ITT ITALIA S.r.l.

Inventor： Luca Martinotto ,  Fabrizio Merlo ,  Daniele Donzelli

IPC: F16D66/00 ,  F16D65/00 ,  F16D66/02 ,  F16D69/00 ,  F16D65/08 ,  F16D65/092 ,  G01L1/16 ,  G01L5/28 ,  B60T17/22 ,  G01L5/22

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

公开(公告)号：US20230167868A1

公开(公告)日：2023-06-01

申请号：US17963452

申请日：2022-10-11

Applicant: ITT ITALIA S.R.L.

Inventor： Paolo Galimberti ,  Marco Belli ,  Sergio Ferrero

IPC: F16D69/04

CPC classification number: F16D69/0408 ,  F16D69/04 ,  F16D2069/0425 ,  F16D2069/0466 ,  F16D2069/0491 ,  F16D2200/0004

Abstract: Method and plant for manufacturing braking elements such as vehicle brake pads. The plant can comprise a first station that applies an adhesive to a first face of a metallic element; a second station that applies to the first face of the metallic element a block of friction material; a checking station that verifies the presence of the adhesive by detecting the gray level of a plurality of points of at least one zone of the first face; and a processing unit that compares the gray level detected for each point with a first threshold value, counts the number of points that have a gray level that satisfies a relationship (which is a function of the threshold value,) and compares such a value with a second threshold value to discard those metallic elements for which the percentage calculated does not correspond to the second threshold value.

公开(公告)号：US11519475B2

公开(公告)日：2022-12-06

申请号：US17013328

申请日：2020-09-04

Applicant: ITT Italia S.r.l.

Inventor： Stefano Serra ,  Umberto Vignolo ,  Marco Terranova

IPC: F16D66/00 ,  F16D65/092 ,  G01L1/16 ,  H05K3/12

Abstract: Various systems, devices, and methods for a vehicle smart brake pad comprising a sensor such as a force sensing device, and a production process thereof. For example, a production process of a vehicle brake pad can include the following steps in time sequence: applying an electrical circuit a support plate; screen printing on the electrical circuit of at least a first electrode; screen printing on the at least first electrode of a sheet of piezoelectric material; screen printing on the sheet of at least a second electrode; applying a friction pad on the support plate; and bulk polarizing the sheet of piezoelectric material by a supply of power to the at least first and second electrodes.

公开(公告)号：US20220205505A1

公开(公告)日：2022-06-30

申请号：US17693933

申请日：2022-03-14

Applicant: ITT Italia S.r.l.

Inventor： Flavio Trombotto

IPC: F16D69/02

Abstract: An asbestos-free organic friction material, in particular for producing brake pads and shoes for vehicles made up of a composition or mixture having a fibrous base, a filler, an organic binder and optional metal oxides. The composition is completely free of copper and copper compounds or alloys and includes in the fibrous base, together with inorganic and/or organic fibers, from 1% to 10% by volume, calculated relative to the total volume of the composition, of stainless steel fibers. The friction material further includes between 1% and 25% by volume of a system of fibrous oxides consisting of potassium hexatitanate and zirconia.

公开(公告)号：US20220196092A1

公开(公告)日：2022-06-23

申请号：US17131244

申请日：2020-12-22

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Francesco VANNUCCI ,  Simone ANSALONI

IPC: F16D65/12 ,  F16D65/00

Abstract: Brake pads are prepared using a formulation of friction material of the copper-free type (Low-Steel or Organic Non-Asbestos) and at least one friction surface of a brake disc, which is intended to cooperate with the brake pad, is covered with an anti-wear and anti-corrosion coating consisting of a surface layer of chromium carbide particles (Cr3C2) dispersed in a metallic matrix consisting of a NiCr alloy, and coupled to a second layer consisting of selected combinations of metallic materials, chosen from the group consisting of: Cr3C2-high density NiCr, NiAl alloys, FeNiCrMoSiC alloys, metallic nickel, NiCr alloys, and/or any combination of the above.