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Patent Agency Ranking
公开(公告)号：US10163433B2
公开(公告)日：2018-12-25
申请号：US15975088
申请日：2018-05-09
Applicant: FCA Italy S.p.A.
Inventor： Renato Badino , Stefano Luca
IPC: H04R3/00 , G10K11/178
Abstract: An automotive active brake noise damping system to actively damp braking noise perceivable in the passenger compartment of a motor vehicle comprising a braking system comprising a plurality of braking assemblies associated with wheels of the motor vehicle. The automotive active brake noise damping system comprises a sensory system to sense quantities that allow braking noise perceived in the passenger compartment of the motor vehicle and generated by the braking assemblies during braking to be estimated, an audio system to diffuse sounds in the passenger compartment of the motor vehicle, and an electronic control unit connected to the sensory system and the audio system, and programmed to control the audio system based on the quantities sensed by the sensor system to actively damp the braking noise perceived in the passenger compartment of the motor vehicle. The sensory system comprises vibration sensors, conveniently in the form of piezoelectric accelerators, which are applied to the braking assemblies to sense the amplitude of the vibrations generated by the braking assemblies during braking, and the electronic control unit is programmed to store a mathematical model, which correlates vibrations generated by the braking assemblies during braking with corresponding braking noise perceived in the passenger compartment of the motor vehicle and produced by the braking assemblies during braking, estimate the braking noise perceived in the passenger compartment of the motor vehicle and generated by the braking assemblies of the braking system during braking as a function of the vibrations generated by the braking assemblies during braking and sensed by the vibration sensors applied to the braking assemblies and of the stored mathematical model, compute an interfering sound to be diffused in the passenger compartment of the motor vehicle to damp the braking noise perceived in the passenger compartment of the motor vehicle and generated by the braking assemblies during braking, and control the audio system to cause it to diffuse the computed interfering sound.
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公开(公告)号：US09714684B2
公开(公告)日：2017-07-25
申请号：US15009967
申请日：2016-01-29
Applicant: FCA Italy S.p.A.
Inventor： Renato Badino , Stefano Luca
CPC classification number: F16D65/0006 , F16D65/12 , F16D65/128 , F16D2065/132 , F16D2065/1328
Abstract: A ventilated brake disk for a motor vehicle has a rotor provided with two disks having respective inner faces, which are axially spaced apart and are joined to each other through a plurality of pins; the radially outermost end areas of the two faces axially define between them an annular passage, which houses the wavy intermediate portion of a wire damping element; this intermediate portion is elastically deformed in a direction parallel to the axis of the rotor so as to be forced against the disks; at its opposite ends, the wire damping element ends with two fastening portions which are radially inwardly bent with respect to the intermediate portion and are hooked to respective pins.
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公开(公告)号：US10830298B2
公开(公告)日：2020-11-10
申请号：US15927651
申请日：2018-03-21
Applicant: FCA Italy S.p.A.
Inventor： Renato Badino , Stefano Luca
Abstract: A brake disc for motor-vehicle disc brakes, includes a body with a hub and two opposite annular planar faces, wherein at least one of these faces is formed with one or more lines defining a surface irregularity, in the form of grooves or ribs, which extend between a radially inner edge and a radially outer edge of the respective face, so as to substantially cover the entire radial extension of the face. A height of the surface irregularity along said lines is less than 0.30 mm, so that during use, the lines defining the surface irregularity disappear, due to wear of the respective face, after an initial fraction of the life of the brake disc. During this initial stage, the lines defining the surface irregularity reduce the time necessary to obtain a bedding of the disc brake with respect to a case of a brake disc devoid of the lines.
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公开(公告)号：US20180330710A1
公开(公告)日：2018-11-15
申请号：US15975088
申请日：2018-05-09
Applicant: FCA Italy S.p.A.
Inventor： Renato Badino , Stefano Luca
IPC: G10K11/178
CPC classification number: G10K11/178 , G10K2210/1282 , G10K2210/3018 , G10K2210/3046
Abstract: An automotive active brake noise damping system to actively damp braking noise perceivable in the passenger compartment of a motor vehicle comprising a braking system comprising a plurality of braking assemblies associated with wheels of the motor vehicle. The automotive active brake noise damping system comprises a sensory system to sense quantities that allow braking noise perceived in the passenger compartment of the motor vehicle and generated by the braking assemblies during braking to be estimated, an audio system to diffuse sounds in the passenger compartment of the motor vehicle, and an electronic control unit connected to the sensory system and the audio system, and programmed to control the audio system based on the quantities sensed by the sensor system to actively damp the braking noise perceived in the passenger compartment of the motor vehicle. The sensory system comprises vibration sensors, conveniently in the form of piezoelectric accelerators, which are applied to the braking assemblies to sense the amplitude of the vibrations generated by the braking assemblies during braking, and the electronic control unit is programmed to store a mathematical model, which correlates vibrations generated by the braking assemblies during braking with corresponding braking noise perceived in the passenger compartment of the motor vehicle and produced by the braking assemblies during braking, estimate the braking noise perceived in the passenger compartment of the motor vehicle and generated by the braking assemblies of the braking system during braking as a function of the vibrations generated by the braking assemblies during braking and sensed by the vibration sensors applied to the braking assemblies and of the stored mathematical model, compute an interfering sound to be diffused in the passenger compartment of the motor vehicle to damp the braking noise perceived in the passenger compartment of the motor vehicle and generated by the braking assemblies during braking, and control the audio system to cause it to diffuse the computed interfering sound.
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公开(公告)号：US20160223036A1
公开(公告)日：2016-08-04
申请号：US15009967
申请日：2016-01-29
Applicant: FCA Italy S.p.A.
Inventor： Renato Badino , Stefano Luca
CPC classification number: F16D65/0006 , F16D65/12 , F16D65/128 , F16D2065/132 , F16D2065/1328
Abstract: A ventilated brake disk for a motor vehicle has a rotor provided with two disks having respective inner faces, which are axially spaced apart and are joined to each other through a plurality of pins; the radially outermost end areas of the two faces axially define between them an annular passage, which houses the wavy intermediate portion of a wire damping element; this intermediate portion is elastically deformed in a direction parallel to the axis of the rotor so as to be forced against the disks; at its opposite ends, the wire damping element ends with two fastening portions which are radially inwardly bent with respect to the intermediate portion and are hooked to respective pins.
Abstract translation: 用于机动车辆的通风制动盘具有设置有两个盘的转子，该两个盘具有各自的内表面，该内表面轴向间隔开并且通过多个销彼此连接; 两个表面的径向最外端部区域在它们之间轴向地限定环形通道，其容纳线阻尼元件的波形中间部分; 该中间部分在平行于转子的轴线的方向上弹性变形，以被迫抵靠盘片; 在其相对端，线阻尼元件的端部具有相对于中间部分径向向内弯曲的两个紧固部分，并且钩接到相应的销。
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