发明名称 Control means for an electric motor
摘要 The invention provides a process for the regulated control of an electric motor more particularly for an elevator, goods lift or storage installation. According to the method of the invention, along the path a coded strip (20) is disposed comprising evenly spaced marks which are read by a reader (23) fixed to the moving body. Counting means (29) give the absolute position of the moving body and means (30) are provided for calculating its speed from counting of the marks. These means are followed by the central processing unit (31) which sends to the motor a regulated voltage control.
申请公布号 US4789050(A) 申请公布日期 1988.12.06
申请号 US19860824118 申请日期 1986.01.30
申请人 LOGILIFT, SARL 发明人 EVIN, JEAN
分类号 H02P3/04;B66B1/16;B66B1/24;B66B1/28;B66B1/34;(IPC1-7):B66B1/16 主分类号 H02P3/04
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