- 专利标题: Method and device for real time estimation of the applied pressure and of noisiness in a brake element, in particular a brake pad
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申请号: US14785213申请日: 2014-04-16
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公开(公告)号: US10119586B2公开(公告)日: 2018-11-06
- 发明人: Fabrizio Merlo , Luca Martinotto , Daniele Donzelli , Mattia Solari
- 申请人: ITT Italia S.r.l.
- 申请人地址: IT
- 专利权人: ITT ITALIA S.r.l.
- 当前专利权人: ITT ITALIA S.r.l.
- 当前专利权人地址: IT
- 代理机构: Barclay Damon, LLP
- 优先权: ITTO2013A0307 20130417
- 国际申请: PCT/IB2014/060778 WO 20140416
- 国际公布: WO2014/170849 WO 20141023
- 主分类号: F16D66/00
- IPC分类号: F16D66/00 ; F16D65/08 ; F16D65/092 ; G01L1/16 ; G01L5/28 ; B60T17/22 ; F16D65/00 ; F16D66/02 ; F16D69/00 ; G01L5/22
摘要:
A brake element is sensorized by at least one piezoceramic sensor arranged between a metallic support element and a block of friction material of a brake element, the sensor being completely embedded within the block. An electrical voltage signal generated by at least one piezoceramic sensor, without the need for a power supply, is picked up by an electrical circuit integrated into the metallic support element. The electrical voltage signal is processed in the form of equal length of samples per unit of time of the detected signal by successively processing in real time each sample of equal length of time sample of the signal by applying an algorithm. The algorithm is selected from at least one of a sequence of integrations of voltage values in the sample carried out in an interval of time in the order of milliseconds; FFT voltage data sample; and integral of the voltage data sample.
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