发明授权
- 专利标题： Vehicle steering system
- 专利标题（中）： 车辆转向系统
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申请号： US13679297申请日： 2012-11-16
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公开(公告)号： US08825298B2公开(公告)日： 2014-09-02
- 发明人: Tatsuma Kouchi
- 申请人： JTEKT Corporation
- 申请人地址： JP Osaka
- 专利权人： JTEKT Corporation
- 当前专利权人： JTEKT Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Oliff PLC
- 优先权： JP2011-258114 20111125
- 主分类号： B62D6/00
- IPC分类号： B62D6/00 ; B62D5/04
摘要：
An acceleration sensor is attached to a rack housing. A FFT processing unit converts a signal output from the acceleration sensor, which is a time-domain signal, into a frequency-domain signal. An inverse input vibration component extraction unit extracts a signal, of which the frequency (f) falls within a predetermined range (fL≦f≦fH (fH>fL)) and of which the power density (ρ) falls within a predetermined range (ρL≦ρ≦ρH (ρH>ρL)), from the frequency-domain signal obtained by the FFT processing unit. An IFFT processing unit converts the frequency-domain signal extracted by the inverse input vibration component extraction unit into a time-domain signal (estimated inverse input vibration).
公开/授权文献
- US20130138296A1 VEHICLE STEERING SYSTEM 公开/授权日：2013-05-30
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