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1. 发明申请

US20230078465A1 Process for the Manufacture of a Multi-Compound Tread for Pneumatic Tires for Road Vehicles 有权
公开(公告)号：US20230078465A1
公开(公告)日：2023-03-16
申请号：US17795613
申请日：2021-01-26
申请人： Bridgestone Europe NV/SA [BE/BE]
发明人： Enrico Fresch , Alessandra Bartoloni , Andrea Sabella
IPC分类号： B29C48/00 , B60C11/00 , B29C48/07 , B29C48/21 , B29C48/345
摘要： A process for the manufacture of a tread band for pneumatic tyres, wherein the blocks thereof comprise different rubber portions characterized by a different hysteresis loss. The process comprises a shredding step, wherein from a first and from a second rubber tread compound a plurality of fragments is manufactured with dimensions of between 6 and 30 mesh; a mixing step, wherein the fragments from the first and second compound are mixed together in order to obtain a mixture wherein said fragments are distributed in a random manner and retain their chemical/physical individuality; and an extrusion step, wherein the mixture from the preceding step is extruded for the manufacture of the tread band. The first and second compounds have different dynamic properties in terms of: dynamic modulus at 30° C., tand at 0° C., tand at 30° C. and tand at 60° C. The fragments retain a chemical/physical individuality both within the mixture formed during the mixing step and within the tread band formed during the extrusion step.

2. 发明申请

US20230009169A1 Method for the Treatment of Cords for the Reinforcing Layers of Pneumatic Tires 有权
公开(公告)号：US20230009169A1
公开(公告)日：2023-01-12
申请号：US17780661
申请日：2020-11-27
申请人： Bridgestone Europe NV/SA [BE/BE]
发明人： Cristiano Pomposini , Giacomo Andreini
IPC分类号： B60C9/00 , B29B15/12 , B29D30/38 , B60C9/20 , D06M15/693 , D06M15/70
摘要： Method for the treatment of single-filament polyethylene terephthalate cords for the reinforcing layers of a pneumatic tyre comprising (a) an adhesive solution coating step, wherein the single filament cord is immersed in an adhesive solution; (b) a drying step, wherein the cord covered in adhesive resin is held within a drying oven at a temperature of between 120 and 180° C.; and (c) a thermobonding step wherein the cord, proceeding from the drying step, is arranged within an oven at a temperature of between 230 and 260° C. for a period of between 30 and 90 seconds. During the thermobonding step, the single filament cord is subjected to a tension of between 8 and 12 mN/dtex.

3. 发明授权

US11505016B2 Tire damage detection system and method 有权
公开(公告)号：US11505016B2
公开(公告)日：2022-11-22
申请号：US17059512
申请日：2019-05-27
申请人： BRIDGESTONE EUROPE NV/SA [BE]
发明人： Lorenzo Alleva , Marco Pascucci
IPC分类号： B60C23/04 , B60C23/06 , B60C19/00
摘要： The invention concerns a system and a method for detecting potential damages to tires of motor vehicles due to impacts against/on obstacles.

4. 发明申请

US20210387432A1 Sealant Layer Assembly 有权
公开(公告)号：US20210387432A1
公开(公告)日：2021-12-16
申请号：US17287201
申请日：2019-10-14
申请人： BRIDGESTONE EUROPE NV/SA [BE/BE]
发明人： Giuseppe Pezzullo , Francesco Botti
IPC分类号： B29D30/06 , B60C19/12 , B29C73/18 , C09J7/38 , C09J7/29 , C09J11/06
摘要： A sealant layer assembly which allows a sealant layer to be applied on a tire outside of tire production plants. The assembly comprises a sealant layer to be applied on the surface of an inner liner layer facing the inner cavity of a tire, a net layer arranged on a first surface of the sealant layer, and at least one non-stick protective layer arranged either on a second surface of the sealant layer opposite the first surface or on the net layer.

5. 发明申请

US20210300125A1 TIRE DAMAGE DETECTION SYSTEM AND METHOD 有权
公开(公告)号：US20210300125A1
公开(公告)日：2021-09-30
申请号：US17059522
申请日：2019-05-27
申请人： BRIDGESTONE EUROPE NV/SA [BE]
发明人： Lorenzo ALLEVA , Marco PASCUCCI
IPC分类号： B60C19/00 , B60C23/06
摘要： The invention concerns a tire damage detection method that includes a tire damage detection step comprising: providing an acquisition device (11), which is installed onboard a motor vehicle (2) equipped with two or more wheels fitted with tires, and which is coupled to a vehicle bus (20) of the motor vehicle (2), and a processing device/system (12, 12A, 12B) storing a predefined tire damage model; acquiring, by the acquisition device (11) from the vehicle bus (20), a signal indicative of a speed of a wheel of the motor vehicle (2); outputting, by the acquisition device (11), quantities indicative of the wheel speed; receiving, by the processing device/system (12, 12A, 12B) from the acquisition device (11), the quantities indicative of the wheel speed; computing, by the processing device/system (12, 12A, 12B) based on the quantities indicative of the wheel speed, a normalized wheel speed indicative of a ratio of the wheel speed to an average wheel speed indicative of motor vehicle speed; and detecting, by the processing device/system (12, 12A, 12B), a potential damage to a tire of the wheel of the motor vehicle (2) based on the predefined tire damage model and on the normalized wheel speed. In particular, the tire damage detection method according to the present invention includes also a preliminary step that comprises: performing tests involving test tire impacts against/on different obstacles at different motor vehicle speeds; measuring/acquiring test-related wheel speeds during the performed tests; computing test-related normalized wheel speeds based on the test-related wheel speeds; and determining the predefined tire damage model to be used by the processing device/system (12, 12A, 12B) in the tire damage detection step on the basis of the test-related normalized wheel speeds corresponding to the test tire impacts and of associated test-related average wheel speeds.

6. 发明申请

US20210255247A1 MOTOR VEHICLE BATTERY WEAR MONITORING SYSTEM AND METHOD 有权
公开(公告)号：US20210255247A1
公开(公告)日：2021-08-19
申请号：US17252033
申请日：2019-06-20
申请人： BRIDGESTONE EUROPE NV/SA
发明人： Lorenzo ALLEVA , Marco PASCUCCI
IPC分类号： G01R31/36 , G07C5/08 , G07C5/00 , F02N11/08 , G01R31/3835 , G01R31/392
摘要： The invention concerns a motor vehicle battery wear monitoring system (1,1A,1B) that includes an acquisition device (11) and a processing device/system (12,12A,12B). The acquisition device (11) is: installed onboard a motor vehicle (2) that is equipped with an internal combustion engine, a battery for providing a battery voltage (VB), an alternator, and a starter motor for starting up the internal combustion engine; and configured to receive the battery voltage (VB) and to output quantities indicative of said battery voltage (VB). The processing device/system (12,12A,12B) is: configured to receive the quantities indicative of the battery voltage (VB) from the acquisition device (11); and programmed to perform a battery voltage monitoring based on the quantities indicative of the battery voltage (VB) to detect an approaching battery failure. The battery voltage monitoring includes detecting for each start-up of the internal combustion engine: a respective first voltage value (VMIN) that is a minimum value assumed by the battery voltage (VB) just after the starter motor has started operating to start up the internal combustion engine; and a respective second voltage value (V2) assumed by the battery voltage (VB) just after the internal combustion engine has been started up, the starter motor has stopped operating and the alternator has started operating. The battery voltage monitoring further includes for each start-up of the internal combustion engine: computing a respective voltage rise value (ΔVR) indicative of a difference between the respective first (VMIN) and second (V2) voltage values; and detecting an approaching battery failure if the respective voltage rise value (ΔVR) meets a predefined condition with respect to a predefined voltage rise threshold (TΔVR).

7. 发明申请

US20210245554A1 TREAD WEAR MONITORING SYSTEM AND METHOD 有权
公开(公告)号：US20210245554A1
公开(公告)日：2021-08-12
申请号：US17252015
申请日：2019-06-11
申请人： Bridgestone Europe NV/SA [BE/BE]
发明人： Vincenzo Ciaravola , Alessandro Boldrini , Lorenzo Alleva , Alfredo Corollaro , Marco Andrea Maggi , Marco Pascucci
IPC分类号： B60C11/24 , G01M17/02
摘要： The invention concerns a tread wear monitoring method comprising a tread wear model calibration step (1) and a tread wear monitoring step (2), wherein the tread wear model calibration step (1) includes determining (13) a calibrated tread wear model based on tread-wear-related quantities and first frictional-energy-related quantities. The tread wear monitoring step (2) includes: acquiring (21), from a vehicle bus (40) of a motor vehicle (4) equipped with two or more wheels fitted, each, with a tire, driving-related quantities related to driving of the motor vehicle (4); computing (22) second frictional-energy-related quantities related to frictional energy experienced, during driving, by a given tire of the motor vehicle (4) by providing a predefined vehicle dynamics model that mathematically relates the acquired driving-related quantities to the second frictional-energy-related quantities, and computing the second frictional-energy-related quantities by inputting the acquired driving-related quantities into the predefined vehicle dynamics model; and performing a tread wear estimation (23) and a remaining tread material prediction (24) based on the second frictional-energy-related quantities computed and the calibrated tread wear model. The tread wear model calibration step (1) further includes: performing (11) tread wear tests on one or more tires; and measuring (12) tread-wear-related quantities indicative of tread depth reductions resulting from the performed tread wear tests, and first frictional-energy-related quantities related to frictional energy which the tested tire(s) is/are subject to during the performed tread wear tests. Determining (13) a calibrated tread wear model includes: providing a predefined reference tread wear model that mathematically relates frictional energy experienced by a tire along a driving route to tread wear caused by said frictional energy through given parameters; computing calibration values of the given parameters by inputting the measured tread-wear-related and first frictional-energy-related quantities into the predefined reference tread wear model; and determining the calibrated tread wear model by applying the computed calibration values in the predefined reference tread wear model.

8. 发明申请

US20210209867A1 TIRE DAMAGE DETECTION SYSTEM AND METHOD 有权
公开(公告)号：US20210209867A1
公开(公告)日：2021-07-08
申请号：US17059531
申请日：2019-05-27
申请人： BRIDGESTONE EUROPE NV/SA [BE]
发明人： Marco Pascucci , Lorenzo Alleva
IPC分类号： G07C5/00 , G07C5/08 , B60R16/023 , H04L29/08
摘要： The invention concerns a tire damage detection system (1,1A) that includes an acquisition device (11), a processing system (12,12A) and a notification device (13,13A). The acquisition device (11) is installed on board a motor vehicle (2) equipped with two or more wheels fitted with tires, is coupled to a vehicle bus (20) of the motor vehicle (2), and is configured to acquire, from the vehicle bus (20), signals indicative of speeds of the motor vehicle (2) and of a wheel of said motor vehicle (2) and output quantities indicative of the speeds of the motor vehicle (2) and of the wheel thereof. The processing system (12,12A) is configured to store a predefined tire damage model and to receive, from the acquisition device (11), the quantities indicative of the speeds of the motor vehicle (2) and of the wheel of said motor vehicle (2), and is programmed to compute, based on the quantities indicative of the speeds of the motor vehicle (2) and of the wheel of said motor vehicle (2), a normalized wheel speed indicative of a ratio of the wheel speed to the motor vehicle speed, and detect a potential damage to a tire of the wheel of the motor vehicle (2) based on the predefined tire damage model and on the normalized wheel speed. The notification device (13,13A) is configured to, if a potential damage to the tire of the wheel of the motor vehicle (2) is detected by the processing system (12,12A), signal the detected potential damage to a user (3) associated with the motor vehicle (2). In particular, according to the present invention, the processing system (12) is a cloud computing system (12A) that is wirelessly and remotely connected to the acquisition device (11), while the notification device (13) is an electronic communication device (13A) associated with the user (3) and remotely connected to the cloud computing system (12A) via one or more wired and/or wireless networks.

9. 发明申请

US20210188012A1 TREAD FOR A PNEUMATIC TIRE AND A PNEUMATIC TIRE 有权
公开(公告)号：US20210188012A1
公开(公告)日：2021-06-24
申请号：US17042050
申请日：2019-03-25
申请人： BRIDGESTONE EUROPE NV/SA
发明人： Giuseppe Rodriquez , Beatrice Mellara
IPC分类号： B60C11/12
摘要： Tread for a pneumatic tyre comprising a sipe having a sipe extension (L) and a sipe depth (P) along a direction of wear (U), wherein said sipe has at least two sections (S1, S2) along said direction of wear (U) having respective differentiated conformations, such that an intersection profile (P1, P2) between the sipe and a surface (T1, T2) parallel to the contact surface of the tread is different for each of said at least two sections (S1, S2), wherein at least one surface section (S1) of said at least two sections (S1, S2) has a depth (PS) that is variable along said sipe extension (L), said two sections (S1, S2) being connected by a transition section (S3) defining a transition line (TL) between the respective sections (S1, S2), said variable depth (PS) of said surface section, presenting a maximum depth (PSMAX) and a minimum depth (PSMIN), and wherein the surface section (SI) has a twisted configuration.

10. 发明申请

US20200224011A1 Compound For Lateral Inserts Of Run-Flat Pneumatic Tires 审中-公开
公开(公告)号：US20200224011A1
公开(公告)日：2020-07-16
申请号：US16651071
申请日：2018-10-19
申请人： Bridgestone Europe NV/SA
发明人： Claudia Aurisicchio , Raffaele Di Ronza
IPC分类号： C08L9/06 , B60C17/00 , B60C1/00
摘要： A compound of a lateral insert of a run-flat pneumatic tyre comprising a cross-linkable unsaturated chain polymer base that is capable of assuming all of the chemical-physical and mechanical characteristics of an elastomer after cross-linking, a filler, a plasticizing agent and a curing system. The plasticizing agent consists of an aliphatic chain and has a melting temperature of between 50° C. and 100° C.

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