- 专利标题: Systems and methods for electrohydraulic valve calibration
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申请号: US15453729申请日: 2017-03-08
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公开(公告)号: US10268214B2公开(公告)日: 2019-04-23
- 发明人: Joseph L Pfaff
- 申请人: HUSCO INTERNATIONAL, INC.
- 申请人地址: US WI Waukesha
- 专利权人: HUSCO International, Inc.
- 当前专利权人: HUSCO International, Inc.
- 当前专利权人地址: US WI Waukesha
- 代理机构: Quarles & Brady LLP
- 主分类号: G05D16/20
- IPC分类号: G05D16/20 ; F16K37/00 ; F15B19/00 ; G01F25/00
摘要:
Systems and methods for calibration of an electrohydraulic control valve are provided. In one aspect, a method for calibrating an electrohydraulic control valve includes providing fluid communication between the pump and the reservoir through a bypass calibration orifice. The bypass calibration orifice defines a known restriction. The method further includes measuring a pressure drop across the bypass calibration orifice, commanding the electrohydraulic control valve, calculating a pressure drop across the electrohydraulic control valve, recording the command applied to the electrohydraulic control valve corresponding with the calculated pressure drop across the electrohydraulic control valve, and calibrating the electrohydraulic control valve based on at least two of the recorded command, the known restriction, the measured pressure drop across the bypass calibration orifice, and the calculated pressure drop across the electrohydraulic control valve.
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