发明名称 |
Method and apparatus for calibrating an electrohydraulic system |
摘要 |
In one aspect of the present invention, an apparatus and method for calibrating an electrohydraulic system is disclosed. In accordance with the present invention, a hydraulic valve that is responsive to an electrical valve signal controllably provides hydraulic fluid flow to a hydraulic actuator. A position sensor senses the position of the hydraulic actuator and responsively produces an actuator position signal. A microprocessor based controller receives the actuator position signal and determines when the hydraulic actuator begins movement, and associates the magnitude of the electrical valve signal to a first predetermined joystick position. Thereafter, the microprocessor based controller determines when the hydraulic actuator movement reaches terminal velocity and associates the magnitude of the electrical valve signal to a second predetermined joystick position.
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申请公布号 |
US5623093(A) |
申请公布日期 |
1997.04.22 |
申请号 |
US19950565369 |
申请日期 |
1995.11.30 |
申请人 |
CATERPILLAR INC. |
发明人 |
SCHENKEL, NATHAN T.;VANCE, RICK D.;HILDNER, PETER R. |
分类号 |
E02F9/20;F15B11/04;F15B13/043;F15B19/00;G05G9/047;(IPC1-7):G01P21/00 |
主分类号 |
E02F9/20 |
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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