发明授权
- 专利标题: Method of controlling a motor
- 专利标题(中): 控制电机的方法
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申请号: US11897387申请日: 2007-08-30
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公开(公告)号: US07791297B2公开(公告)日: 2010-09-07
- 发明人: Thomas Mueller , Johannes Stempfhuber , Germar Meiendres , Konstantin Baxivanelis , Markus Looser
- 申请人: Thomas Mueller , Johannes Stempfhuber , Germar Meiendres , Konstantin Baxivanelis , Markus Looser
- 申请人地址: LI Schaan
- 专利权人: Hilti Aktiengesellschaft
- 当前专利权人: Hilti Aktiengesellschaft
- 当前专利权人地址: LI Schaan
- 代理机构: Abelman, Frayne & Schwab
- 优先权: DE102006000443 20060904
- 主分类号: H02K17/32
- IPC分类号: H02K17/32
摘要:
A method for controlling a motor (2) which drives a disk-shaped tool (4) of a power tool (1) and to which a motor voltage in the amount of a nominal value is applied in an “on” position of a motor switch (6), includes determination of an actual motor current (IM) applied to the motor (2) and comparing it to a first predetermined threshold (GW1), and automatically triggering of a control process for protecting the motor (2) when an overload condition which is defined in that the first predetermined threshold (GW1) is exceeded beyond a first predetermined limiting time period (grDt1), is met, the control process including reduction of the motor voltage applied to the motor (2) by a magnitude that can be perceived by the user as a choke value.
公开/授权文献
- US20080054832A1 Method of controlling a motor 公开/授权日:2008-03-06
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