公开(公告)号：US20230391300A1

公开(公告)日：2023-12-07

申请号：US18033310

申请日：2021-09-27

Applicant: ITT Italia S.r.l.

Inventor： Pietro Roberto MACCHI ,  Stefano SERRA ,  Marco TERRANOVA ,  Umberto VIGNOLO

IPC: B60T8/171 ,  B60T8/172 ,  B60T8/174

CPC classification number: B60T8/171 ,  B60T8/172 ,  B60T8/174 ,  B60T2250/00 ,  B60T2201/06

Abstract: A vehicle electronic system including a parking brake equipment, comprising a brake element (2) including either a brake pad or a brake shoe, said brake element (2) including an electrical circuit equipped with one or more sensors (3, 4, 5) for real-time detection of signals relating to temperatures and/or to normal forces and/or to shear forces and having electrical terminals arranged in a zone for collecting the signals from the brake element, said vehicle electronic parking brake system further comprising an actuator (8) of the brake element (2), a controller (7) delivering a braking force command to the actuator (8), and regulating means (9, 10) driving the controller (7), wherein the regulating means (9, 10) include a closed regulating loop of the braking force including a reference braking force generator (10), said closed regulating loop of the braking force being communicating with said sensors (3, 4, 5) to acquire at least one of temperatures and/or normal forces and/or shear forces measurements.

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：US20250084906A1

公开(公告)日：2025-03-13

申请号：US18294983

申请日：2022-06-10

Applicant: ITT ITALIA S.R.L.

Inventor： Marco TERRANOVA ,  Stefano SERRA ,  Gianmaria MILANI ,  Cesare ZANGARI

IPC: F16D66/00 ,  F16D65/095

Abstract: A sensor-equipped brake pad (1) for the braking system of a motor vehicle, comprising a printed circuit board (200), a rear support plate (100) having a recess (110) in which the printed circuit board (200) is fixed, at least one force sensor (201) mounted on the printed circuit board (200), a block of friction material (300) mounted on the rear plate (100), wherein the printed circuit board (200) is interposed between the rear plate (100) and the block of friction material (300), and wherein structural stiffening means (260) for the printed circuit board (200) are provided.

公开(公告)号：US20230228631A1

公开(公告)日：2023-07-20

申请号：US18007915

申请日：2021-05-21

Applicant: ITT ITALIA S.R.L.

Inventor： Stefano SERRA ,  Umberto VIGNOLO ,  Marco TERRANOVA

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

CPC classification number: G01L1/16 ,  F16D65/092 ,  F16D66/00 ,  G01L5/28 ,  F16D2066/005 ,  F16D2066/006 ,  F16D2250/0084

Abstract: A vehicle brake pad (100) comprising: a support plate (21); a friction pad (20); at least a shear force sensing device; and an electrical circuit configured to collect signals from the shear force sensing device (1); wherein the shear force sensing device (1) comprises: a sheet (2) of piezoelectric material having a first and a second main faces (3, 4) parallel to each other identifying a shear stress direction (S); at least a first digitated reading electrode (5) located on the first main face (3); at least a second digitated reading electrode (6) located on the second main face (4), the first and second reading electrodes (5, 6) having digits (5a, 6a) aligned along a reading direction (R) orthogonal to the stress shear direction (S); at least a first digitated polarizing electrode (7) located on the first main face (3) and interdigitated with the first digitated reading electrode (5); and at least a second digitated polarizing electrode (8) located on the second main face (4) and interdigitated with the second digitated reading electrode (6); and wherein the piezoelectric material has a bulk electric polarization with vector field (E) transversally oriented to the reading direction (R), each pair of aligned digits (5a, 6a) of the first and second reading electrodes (5, 6) enclosing a respective zone (2a) of the piezoelectric material having the

公开(公告)号：US20220381631A1

公开(公告)日：2022-12-01

申请号：US17751439

申请日：2022-05-23

Applicant: ITT Italia S.r.l.

Inventor： Pietro Roberto MACCHI ,  Umberto VIGNOLO ,  Marco TERRANOVA ,  Stefano SERRA

IPC: G01L3/16 ,  G01L5/28

Abstract: Methods and devices for estimating a residual torque between the braked (e.g., brake disk or drum) and braking elements (e.g., support plate or friction block) of a vehicle based on acquired and reference temperatures, where the reference temperature can be calculated using an N-dimensional calculation model with an N-dimensional vector of input variables, and where said N-dimensional calculation model can be an analytical or experimental characterization of the thermal behavior of the brake.