发明名称 |
Control device for the position control of a hydraulic cylinder unit comprising a linearization unit |
摘要 |
A control device for the position control of a hydraulic cylinder unit has a controller which receives a set and an actual piston position and determines a preliminary manipulated variable based on the difference of the set and actual positions. A linearization unit multiplies the variable with a linearization factor and outputs it to the valve control unit so that the piston is adjusted at an adjustment speed. The linearization unit determines the factor dynamically as a function of the actual piston position and of working pressures that prevail at both piston sides. The linearization factor is determined such that a ratio of the adjustment speed to the difference of the set and actual positions is independent of the actual position and the working pressures. In the specific case where the controller is configured as a P controller, the order of the controller and the linearization unit can be reversed. |
申请公布号 |
US8301276(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US20080740722 |
申请日期 |
2008.09.05 |
申请人 |
TAUTZ WILFRIED;WOHLD DIETRICH;SIEMENS AKTIENGESELLSCHAFT |
发明人 |
TAUTZ WILFRIED;WOHLD DIETRICH |
分类号 |
G05B11/32;F15B9/02;F15B13/16;F15B15/26;F16D31/02;G05B19/40;G05D7/00;G05D11/00 |
主分类号 |
G05B11/32 |
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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