发明名称 |
Elevator speed control system |
摘要 |
During the acceleration of an elevator car frequency modulated clock pulses are counted up by a first counter to generate a command speed pattern. A second counter similarly generates a second speed pattern identical in shape to and delayed a predetermined time relative to the command speed pattern. A randum access memory successively stores theoretical distances of movement of the car due to the command speed pattern suitably corrected and the second speed pattern as a distance-to-speed function. When and after both patterns first equal each other, a command deceleration pattern is generated to follow objectives or the distance-to-speed function. Once the command speed again equalled the objective, the intact distance-to-speed function is used as a command deceleration pattern concerning residual distances to a stop floor.
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申请公布号 |
US4130184(A) |
申请公布日期 |
1978.12.19 |
申请号 |
US19770799314 |
申请日期 |
1977.05.23 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
SATOH, TSUYOSHI;TACHINO, KENZO |
分类号 |
B66B1/24;B66B1/16;B66B1/28;B66B1/30;B66B1/36;G05B19/02;H02P29/00;(IPC1-7):B66B1/30 |
主分类号 |
B66B1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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