公开(公告)号：US20210323192A1

公开(公告)日：2021-10-21

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 ,  F16D69/02 ,  C04B14/10 ,  C04B18/08

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：US20210278336A1

公开(公告)日：2021-09-09

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 ,  G01N27/48 ,  G01N27/416

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：US10677304B2

公开(公告)日：2020-06-09

申请号：US16273530

申请日：2019-02-12

Applicant: ITT Italia S.r.l.

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

IPC: F16D66/02 ,  F16D66/00 ,  F16D65/092 ,  G01L1/16 ,  G01L5/28

Abstract: Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance.

公开(公告)号：US10451130B2

公开(公告)日：2019-10-22

申请号：US15658188

申请日：2017-07-24

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：US10208822B2

公开(公告)日：2019-02-19

申请号：US15279224

申请日：2016-09-28

Applicant: ITT Italia S.r.l.

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

IPC: F16D66/02 ,  F16D66/00 ,  F16D65/092 ,  G01L1/16 ,  G01L5/28

Abstract: Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance.

公开(公告)号：US10119586B2

公开(公告)日：2018-11-06

申请号：US14785213

申请日：2014-04-16

Applicant: ITT Italia S.r.l.

Inventor： Fabrizio Merlo ,  Luca Martinotto ,  Daniele Donzelli ,  Mattia Solari

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

Abstract: A brake element is sensorized by at least one piezoceramic sensor arranged between a metallic support element and a block of friction material of a brake element, the sensor being completely embedded within the block. An electrical voltage signal generated by at least one piezoceramic sensor, without the need for a power supply, is picked up by an electrical circuit integrated into the metallic support element. The electrical voltage signal is processed in the form of equal length of samples per unit of time of the detected signal by successively processing in real time each sample of equal length of time sample of the signal by applying an algorithm. The algorithm is selected from at least one of a sequence of integrations of voltage values in the sample carried out in an interval of time in the order of milliseconds; FFT voltage data sample; and integral of the voltage data sample.

公开(公告)号：US10113598B2

公开(公告)日：2018-10-30

申请号：US15323186

申请日：2015-09-08

Applicant: ITT Italia S.r.l.

Inventor： Fabrizio Merlo ,  Luca Martinotto ,  Mattia Solari ,  Daniele Donzelli

IPC: F16D65/092 ,  F16D65/08 ,  F16D66/00 ,  F16D69/00 ,  F16D129/12

Abstract: Method wherein at least one piezoceramic sensor (15) and an electric circuit (18) to collect an electric signal emitted by the piezoceramic sensor (15) when subjected to a mechanical stress and possibly processing it are made as a unit electrically insulated (118) equipped with at least a branching (119) ending with respective electric contacts (20,21) having connected the at least one piezoelectric sensor (15), where the electric circuit (18) and the at least one sensor (15) are mechanically fixed integral with a first surface (13) of a supporting metal element (11) of a brake pad (1) and branching (119) is formed so as to position the at least one piezoelectric sensor (15) at a predetermined point of the first surface (13).

公开(公告)号：US09964167B2

公开(公告)日：2018-05-08

申请号：US15184806

申请日：2016-06-16

Applicant: ITT ITALIA S.r.l.

Inventor： Luca Martinotto ,  Fabrizio Merlo ,  Daniele Donzelli

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

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.

公开(公告)号：US09939035B2

公开(公告)日：2018-04-10

申请号：US15167883

申请日：2016-05-27

Applicant: ITT Italia S.r.l.

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

IPC: F16D65/20 ,  F16D66/02 ,  F16D66/00 ,  F16D65/092 ,  G01L1/16 ,  G01L5/28

CPC classification number: F16D66/021 ,  F16D65/092 ,  F16D66/00 ,  F16D2066/005 ,  F16D2066/006 ,  G01L1/16 ,  G01L5/28

Abstract: Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance.

公开(公告)号：US09360065B2

公开(公告)日：2016-06-07

申请号：US14202695

申请日：2014-03-10

Applicant: ITT ITALIA S.r.l.

Inventor： Diego Adolfo Santamaria Razo ,  Marco Travet

IPC: C23F13/00 ,  F16D65/00 ,  B60T17/22 ,  C23F13/04

CPC classification number: F16D65/0025 ,  B60T17/221 ,  C23F13/04 ,  C23F2213/30

Abstract: An active corrosion protection circuit for a brake disc-pad unit of a motor vehicle includes one of a metal disc and a pad adapted to selectively block the disc. A direct electric voltage source and an electric conductor connectable to the electric voltage source and one of the disc and the pad forms an electric circuit causing a monopolar current flux between the disc and the pad when the pad blocks the disc so that the action of the current is localized in a contact zone between the disc and the pad.

Abstract translation: 用于机动车辆的制动盘片单元的主动腐蚀保护电路包括适于选择性地阻挡盘的金属盘和衬垫之一。 直接电压源和可连接到电压源的电导体和盘和垫中的一个形成电路，当电路板阻挡盘时，电路使得盘和焊盘之间的单极电流通量使得 电流被定位在盘和垫之间的接触区域中。