公开(公告)号：US09970494B2

公开(公告)日：2018-05-15

申请号：US14519761

申请日：2014-10-21

Applicant: ITT ITALIA S.r.l.

Inventor： Pietro Bertoldo

IPC: F16D65/04 ,  F16D65/092 ,  F16D69/04 ,  B29C70/78 ,  C22F1/04 ,  F16D69/00 ,  F16D69/02 ,  B29K705/02 ,  B29L9/00 ,  B29L31/16

CPC classification number: F16D65/04 ,  B29C70/78 ,  B29K2705/02 ,  B29L2009/00 ,  B29L2031/16 ,  C22F1/04 ,  F16D65/092 ,  F16D69/00 ,  F16D69/026 ,  F16D69/04 ,  F16D2069/0491 ,  F16D2200/003

Abstract: Method for the production of braking elements for vehicles, in particular brake pads, including a die forming step by means of fine and/or traditional shearing of a metal support and a molding step upon the metal support of a block of friction material; the friction material is selected from the group of asbestos free materials, while the metal plate is made of an aluminum alloy selected from the group consisting of aluminum alloys subjected to precipitation hardening (age-hardening alloys) and is made from the fine and/or traditional shearing of a metal sheet when the alloy is in a solubilized state; the alloy, being aged during a friction material baking step, gains its mechanical properties needed for its operation.

公开(公告)号：US20170267220A1

公开(公告)日：2017-09-21

申请号：US15448381

申请日：2017-03-02

Applicant: ITT Italia S.r.l.

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

IPC: B60T8/52 ,  F16D65/092 ,  B60T8/1761 ,  F16D66/00 ,  B60T8/172 ,  B60T8/1763

CPC classification number: B60T8/52 ,  B60T8/171 ,  B60T8/172 ,  B60T8/17616 ,  B60T8/17636 ,  B60T2210/124 ,  F16D65/092 ,  F16D66/00 ,  F16D2066/005

Abstract: Various antilock braking systems, devices, and methods using sensorized brake pads are disclosed. In some embodiments, the present disclosure provides a method for improving the performance of an antilock braking (ABS) and anti-slip regulation (ASR) system of a vehicle. The method can include detecting the actual value of the coefficient of friction (e.g., between a tire and the ground), updating the coefficient of friction during braking using the braking torque data derived from at least one braking pad of each wheel, and adjusting brake force. For example, the brake force can be adjusted as a function of and/or to be approximately equal to the value of the actual tire-road friction during braking.

公开(公告)号：US20250075764A1

公开(公告)日：2025-03-06

申请号：US18554227

申请日：2022-04-07

Applicant: ITT Italia S.R.L.

Inventor： Margherita GILETTA ,  Annamaria CANUTI ,  Daniele MORERO

IPC: F16D69/02 ,  F16D65/092

Abstract: Friction material composition and associated brake pad for vehicles having a reduced or nil tendency to both stiction and creep groan, wherein the composition includes an organic binder; an inorganic filler; a lubricant; hard abrasives having a Mohs hardness of above 7 having exclusively a roundish shape, e.g. consisting in: Alumina, Corindone, Silicon carbide, Tungsten carbide, Zirconium carbide, Zirconium silicate, Boron nitride; soft abrasives having a Mohs hardness of below 7; carbon based materials; and a metal or mixture of metals except Cu, in an amount of less than 7% in volume calculated on the total volume of the composition; the ratio between the hard abrasive rounded and the carbon based materials being 1:3; the ratio between the hard abrasive rounded and the soft abrasives being 1:6; the ratio between the metal or mixture of metals and the carbon based materials being 1:6.

公开(公告)号：US12071994B2

公开(公告)日：2024-08-27

申请号：US17875175

申请日：2022-07-27

Applicant: ITT ITALIA S.R.L.

Inventor： Mattia Solari ,  Marco Terranova

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

CPC classification number: F16D66/021 ,  B60T17/22 ,  B60T17/221 ,  F16D65/08 ,  B60T2201/12 ,  F16D2066/001 ,  F16D2066/005 ,  F16D2066/006 ,  F16D2121/28

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：US11933379B2

公开(公告)日：2024-03-19

申请号：US17178088

申请日：2021-02-17

Applicant: ITT Italia S.r.l.

Inventor： Stefano Serra ,  Luca Martinotto ,  Augusti Sin Xicola ,  Fabrizio Merlo ,  Paolo Galimberti

IPC: F16D66/02 ,  F16D65/092 ,  F16D66/00 ,  G01L1/06 ,  G01L5/28

CPC classification number: F16D66/021 ,  F16D65/092 ,  F16D66/00 ,  G01L1/06 ,  G01L5/28 ,  F16D2066/005 ,  F16D2066/006

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：US11885386B2

公开(公告)日：2024-01-30

申请号：US17983267

申请日：2022-11-08

Applicant: ITT Italia S.r.l.

Inventor： Stefano Serra ,  Umberto Vignolo ,  Marco Terranova

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

CPC classification number: F16D66/00 ,  F16D65/092 ,  G01L1/16 ,  H05K3/1216 ,  F16D2066/005 ,  F16D2200/0004 ,  F16D2250/0038 ,  F16D2250/0061

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：US11794707B2

公开(公告)日：2023-10-24

申请号：US16250856

申请日：2019-01-17

Applicant: ITT Italia S.r.l.

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

IPC: B60T8/00 ,  B60T8/52 ,  B60T8/171 ,  B60T8/172 ,  B60T8/1761 ,  B60T8/1763 ,  F16D65/092 ,  F16D66/00

CPC classification number: B60T8/52 ,  B60T8/171 ,  B60T8/172 ,  B60T8/17616 ,  B60T8/17636 ,  F16D65/092 ,  F16D66/00 ,  B60T2210/124 ,  F16D2066/005

Abstract: Various antilock braking systems, devices, and methods using sensorized brake pads are disclosed. In some embodiments, the present disclosure provides a method for improving the performance of an antilock braking (ABS) and anti-slip regulation (ASR) system of a vehicle. The method can include detecting the actual value of the coefficient of friction (e.g., between a tire and the ground), updating the coefficient of friction during braking using the braking torque data derived from at least one braking pad of each wheel, and adjusting brake force. For example, the brake force can be adjusted as a function of and/or to be approximately equal to the value of the actual tire-road friction during braking.

公开(公告)号：US20230235801A1

公开(公告)日：2023-07-27

申请号：US18007981

申请日：2021-05-21

Applicant: ITT ITALIA S.R.L.

Inventor： Stefano SERRA ,  Umberto VIGNOLO ,  Marco TERRANOVA

IPC: F16D65/092 ,  F16D66/02 ,  G01L1/16 ,  H10N30/30 ,  H10N30/87 ,  H10N30/06 ,  H10N30/045

CPC classification number: F16D65/092 ,  F16D66/027 ,  G01L1/16 ,  H10N30/302 ,  H10N30/87 ,  H10N30/06 ,  H10N30/045 ,  F16D2066/005

Abstract: The force sensing device (1) comprising: a sheet (2) of piezoelectric; at least a first and a second interdigitated electrodes (5, 50) located on a first main face (3) and at least a third and fourth interdigitated electrodes (6, 60) located on a second main face (4) of the sheet (2), the first and third electrodes (5, 6) being aligned to each other along a normal stress direction (N), the second and fourth electrodes (50, 60) being aligned to each other along the normal stress direction (N); the piezoelectric material comprising first portions (100) facing the first and third electrodes (5, 6) interposed with second portions (101) facing the second and fourth electrodes (50, 60), the first portions (100) having bulk electric polarization with vector field (E) mostly oriented in alignment with the normal stress direction (N), the second portions (101) having bulk electric polarization with vector field (E) mostly oriented transversally to the normal stress direction (N).

公开(公告)号：US11614137B2

公开(公告)日：2023-03-28

申请号：US17128259

申请日：2020-12-21

Applicant: ITT Italia S.R.L.

Inventor： Agustin Sin Xicola ,  Francesco Vannucci ,  Simone Ansaloni

IPC: F16D65/12 ,  F16D69/02 ,  B60T1/06 ,  F16D55/22 ,  F16D65/092 ,  F16D65/02

Abstract: Brake pads are prepared using a LS (Low Steel) or NAO (Non-Asbestos Organics) type friction material formulation and at least one friction surface of a brake disc intended to cooperate in use with a brake pad that is coated with an anti-wear and anti-corrosion coating with adequate plasticity in order to have a reduced propensity to form micro-cracks under conditions of tribo-mechanical stress, chosen from the amongst the group consisting in: particles of chromium carbide (Cr3C2) dispersed within a metallic matrix consisting of an alloy of NiCr; particles of a combination of several metallic materials in order to create a metallic compound consisting of an alloy of FeNiCrMoSiC (iron-nickel-chromium-molybdenum-silicon-carbon).

公开(公告)号：US20220196098A1

公开(公告)日：2022-06-23

申请号：US17128259

申请日：2020-12-21

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Francesco VANNUCCI ,  Simone ANSALONI

IPC: F16D69/02 ,  F16D65/12 ,  B60T1/06 ,  F16D55/22 ,  F16D65/092

Abstract: Brake pads are prepared using a LS (Low Steel) or NAO (Non-Asbestos Organics) type friction material formulation and at least one friction surface of a brake disc intended to cooperate in use with a brake pad that is coated with an anti-wear and anti-corrosion coating with adequate plasticity in order to have a reduced propensity to form micro-cracks under conditions of tribo-mechanical stress, chosen from the amongst the group consisting in: particles of chromium carbide (Cr3C2) dispersed within a metallic matrix consisting of an alloy of NiCr; particles of a combination of several metallic materials in order to create a metallic compound consisting of an alloy of FeNiCrMoSiC (iron-nickel-chromium-molybdenum-silicon-carbon).