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1. 发明申请

WO2022268958A1 PROCÉDÉ DE RÉGLAGE DE LA FORCE DE SERRAGE EXERCÉE PAR UN FREIN ÉLECTROMÉCANIQUE 审中-公开
公开(公告)号：WO2022268958A1
公开(公告)日：2022-12-29
申请号：PCT/EP2022/067182
申请日：2022-06-23
申请人： HITACHI ASTEMO FRANCE
发明人： RAMIREZ HERNANDEZ, Carlos Eduardo , RAMDANE, Abdessamed
IPC分类号： B60T8/00 , B60T8/172 , B60T8/32 , B60T13/74 , H02P29/40 , B60T13/741 , B60T17/22 , B60T8/327 , F16D2066/005 , H02P23/14 , H02P6/18
摘要： L'invention se rapporte à un procédé pour régler la force de serrage (F*) exercée par un frein électromécanique (B) d'un véhicule automobile, le frein (B) comportant un moteur électrique muni d'un arbre rotatif destiné à entraîner des moyens mécaniques de serrage de frein, le moteur électrique étant commandé au moyen d'une commande en tension du type MLI, dans lequel on estime la vitesse de rotation du moteur (ω) à partir d'une estimation de la résistance du moteur (R*) et d'une estimation de la constante moteur (K*), puis on détermine la force de serrage (F*) à partir de l'estimation de la vitesse de rotation du moteur (ω), caractérisé en ce que l'on met à jour l'estimation de la résistance du moteur (R*) pendant une phase inactive d'absence de commande en tension (« idle phase »).

2. 发明申请

WO2023274714A1 VERFAHREN ZUR BESTIMMUNG EINES VERSCHLEISSZUSTANDS EINES BREMSBELAGS EINES FAHRZEUGS, SOWIE VORRICHTUNG UND COMPUTERPROGRAMM 审中-公开
公开(公告)号：WO2023274714A1
公开(公告)日：2023-01-05
申请号：PCT/EP2022/066143
申请日：2022-06-14
申请人： ROBERT BOSCH GMBH
发明人： HOFFMANN, Andreas , SUNKARA, Devi Raj , WEISSENBACHER, Christian , SCHEER, Mirko , ZECHLIN, Hannes-Sebastian , LEHNER, Stephan Georg
IPC分类号： B60T17/18 , B60T17/22 , F16D66/02 , F16D55/02 , F16D2066/001 , F16D2066/003 , F16D2066/005 , F16D2066/006 , F16D66/021 , F16D66/026
摘要： Verfahren zur Bestimmung eines Verschleißzustands eines Bremsbelags eines Fahrzeugs (F), umfassend die Schritte: Empfangen (S10) von Zeitreihendaten (Dt), wobei die Zeitreihendaten (Dt) eine Zeitreihe von bremssystemrelevanten Daten des Fahrzeugs (F) umfasst; Identifizieren (S20) von zumindest einem Bremsereignis (B1, B2) in den Zeitreihendaten (Dt), wobei jedes in den Zeitreihendaten (Dt) identifizierte Bremsereignis (B1, B2) einem zeitlichen Datenfenster von Bremsereignisdaten (Db) der Zeitreihendaten (Dt) entspricht, wobei das Datenfenster mit einem realen Bremsereignis des Fahrzeugs (F) korreliert; Bestimmen (S30) von Merkmalen (M) aus den Bremsereignisdaten (Db) unter Verwendung von vorbestimmten Operatoren für jedes identifizierte Bremsereignis (B1, B2); Klassifizieren (S40) des zumindest einen Bremsereignisses (B1, B2) unter Verwendung der dafür bestimmten Merkmale (M); wobei die Klassifizierung (K) einem Verschleißzustand des Bremsbelags des Fahrzeugs (F) zugeordnet ist.

3. 发明申请

WO2021146159A1 FORCE SENSOR APPARATUS AND A METHOD OF ASSEMBLING THE SAME 审中-公开
公开(公告)号：WO2021146159A1
公开(公告)日：2021-07-22
申请号：PCT/US2021/013034
申请日：2021-01-12
申请人： SENSATA TECHNOLOGIES INC.
发明人： FORTGENS, Laurens C. , SLOETJES, Jan-Willem , VONK, Edwin , AUER, Ruben , KOUWEN, Thomas Gerjen Hendrik , ZWOLLO, Cristobal Ruiz
IPC分类号： G01L1/22 , B60T17/221 , F16D2066/005 , F16D66/00 , G01L1/142 , G01L1/2231 , G01L1/2237
摘要： In a particular embodiment, a force sensor apparatus is disclosed that includes a force-compliant element that deforms in response to forces applied to the force sensor apparatus. The apparatus also includes a sensing element coupled to the force-compliant element and is configured to generate a signal indicating the degree that the force-compliant element deforms in response to the applications of forces to the force sensor apparatus. In this embodiment, the apparatus also includes a printed circuit board configured to receive the signal from the sensing element and a support structure having a surface on which the printed circuit board is coupled. The support structure has an outer rim that is attached to the force-compliant element. The apparatus also includes a sensor housing that covers the printed circuit board. The sensor housing has an outer rim attached to the force-compliant element.

4. 发明申请

WO2021244877A1 FORCE SENSING DEVICE, VEHICLE BRAKING DEVICE INCORPORATING SUCH A FORCE SENSING DEVICE, AND METHOD OF PRODUCTION THEREOF 审中-公开
公开(公告)号：WO2021244877A1
公开(公告)日：2021-12-09
申请号：PCT/EP2021/063634
申请日：2021-05-21
申请人： ITT ITALIA S.R.L.
发明人： SERRA, Stefano , VIGNOLO, Umberto , TERRANOVA, Marco
IPC分类号： F16D65/092 , F16D66/02 , G01L1/16 , H01L41/187 , H01L41/317 , F16D2066/001 , F16D2066/005 , F16D66/027 , H01L41/047 , H01L41/1132 , H01L41/257
摘要： 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).

5. 发明申请

WO2021244874A1 VEHICLE BRAKE PAD AND METHOD OF PRODUCTION THEREOF 审中-公开
公开(公告)号：WO2021244874A1
公开(公告)日：2021-12-09
申请号：PCT/EP2021/063614
申请日：2021-05-21
申请人： ITT ITALIA S.R.L.
发明人： SERRA, Stefano , VIGNOLO, Umberto , TERRANOVA, Marco
IPC分类号： F16D65/092 , G01L1/16 , F16D2066/001 , F16D2066/005 , F16D66/027 , G01L5/167 , G01L5/28 , H01L41/047 , H01L41/1132 , H01L41/257
摘要： 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 vector field (E) most tangentially oriented to the shear stress direction (S).

6. 发明申请

WO2021130655A1 SYSTEM AND METHOD FOR DETERMINING A BRAKING TORQUE BY MEANS OF A FORCE DETECTION DEVICE AT AN INTERFACE BETWEEN A BRAKE CALIPER BODY AND A HUB HOLDER 审中-公开
公开(公告)号：WO2021130655A1
公开(公告)日：2021-07-01
申请号：PCT/IB2020/062288
申请日：2020-12-21
申请人： BREMBO S.P.A.
发明人： MILANESI, Andrea
IPC分类号： B60T8/52 , B60T17/22 , F16D65/00 , F16D2055/0008 , F16D2066/005 , F16D65/0062
摘要： A device 1 for detecting a braking force, applied by a brake caliper 10 on a hub holder 20, upon a braking event, and due to the braking event, is described. The device is adapted to be mounted at a fastening interface (i, ii) between the brake caliper 10 and the hub holder or brake caliper support 20, by tightening means 60 which apply a tightening force. The device 1 comprises a low-friction body 2, a caliper- hub-holder element 3, a sensor element 4, and an electrical interface 5. The low-friction body 2, in the form of a washer or discoidal plate, is adapted to be put into close contact the brake caliper 10 and the hub holder 20, at the fixing interface (i, ii). The caliper- hub-holder connection element 3 is connected and integral with the low-friction body, and is adapted to be mechanically connected, when the detection device 1 is mounted, to both the brake caliper 10 and the hub holder 20, to determine a mechanical connection through which the braking force is at least partially discharged. The caliper- hub-holder connection element 3 is susceptible of deformation so that the strains and/or stresses present in the caliper- hub-holder connection element 3 depend on the overall force acting on the caliper- hub-holder connection element 3. The low-friction body 2 is configured to decouple the tightening forces from the braking forces to minimize the effect of the tightening forces on the detection device 1 so that the deformations and/or strains of the caliper- hub-holder connection element 3 are representative of the aforesaid force derived from the braking event. The sensor element 4 is connected to the caliper- hub-holder connection element 3 and is configured to detect a strain present in the caliper- hub-holder connection element 3 and to generate at least one electrical signal S indicative of the detected strain and representative of the braking force. The electrical interface 5 is connected to the aforesaid sensor element 4 for conducting and making available said at least one generated electrical signal S. A corresponding method and system for determining a braking torque are also described.

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