发明申请
- 专利标题: Resolver digital converter
- 专利标题(中): 分解数字转换器
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申请号: US11110697申请日: 2005-04-21
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公开(公告)号: US20050252272A1公开(公告)日: 2005-11-17
- 发明人: Tetsuro Otsuka , Atsushi Horikoshi , Nobuyasu Kanekawa , Shoji Sasaki
- 申请人: Tetsuro Otsuka , Atsushi Horikoshi , Nobuyasu Kanekawa , Shoji Sasaki
- 专利权人: NSK LTD.,NSK STEERING SYSTEMS CO., LTD.
- 当前专利权人: NSK LTD.,NSK STEERING SYSTEMS CO., LTD.
- 优先权: JPP.2004-128302 20040423
- 主分类号: G01D5/245
- IPC分类号: G01D5/245 ; G01D5/244 ; G01W1/18
摘要:
In a resolver digital converter comprising a resolver, a resolver digital conversion part, and an excitation signal generation part, the resolver digital converter for inputting an excitation signal generated in the excitation signal generation part to the resolver and inputting resolver signals outputted from the resolver to the resolver digital conversion part, a locus in which amplitude of a sine component signal among the resolver signals sin(θ), cos(θ) outputted from the resolver is plotted as the ordinate axis and amplitude of a cosine component signal is plotted as the abscissa axis is approximated by a polygon and when the locus matches with sides of the approximated polygon, it is determined that the resolver is in a normal state and when the locus does not match, it is determined that the resolver is in a failure state.
公开/授权文献
- US07343254B2 Resolver digital converter 公开/授权日:2008-03-11