发明授权
- 专利标题: Electric damper
- 专利标题(中): 电阻尼器
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申请号: US12397006申请日: 2009-03-03
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公开(公告)号: US08042818B2公开(公告)日: 2011-10-25
- 发明人: Shigeru Yamawaki , Yasuo Shimizu , Katsuji Watanabe , Atsuhiko Yoneda
- 申请人: Shigeru Yamawaki , Yasuo Shimizu , Katsuji Watanabe , Atsuhiko Yoneda
- 申请人地址: JP Tokyo
- 专利权人: Honda Motor Co., Ltd.
- 当前专利权人: Honda Motor Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Arent Fox LLP
- 优先权: JP2008-053172 20080304
- 主分类号: B60G17/00
- IPC分类号: B60G17/00 ; F16F9/50
摘要:
An electric damper which does not transmit unbalance wheel vibration to a vehicle body is provided. A low-pass cutoff frequency setting unit and a high-pass cutoff frequency setting unit respectively set the cutoff frequencies for band-stop filters to a frequency band corresponding to unbalance wheel vibration based on a signal indicating a vehicle speed from a vehicle speed sensor, and a function as a band-stop filter comprising a low-pass filter computation unit, a high-pass filter computation unit and an adder is computed for a displacement rate of the vertical motion of a wheel calculated by a differentiating unit in a damper control unit. A damper control amount computation unit calculates a control amount of controlling an electric motor for a motor-driven damper based on the calculated filtered displacement rate, and outputs a control signal to a motor driving unit through a driving circuit output unit.
公开/授权文献
- US20090224502A1 ELECTRIC DAMPER 公开/授权日:2009-09-10
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