发明名称 |
AUTOMATIC BLADE SLOPE CONTROL SYSTEM FOR AN EARTH MOVING MACHINE |
摘要 |
<p>The slope angle of a blade on an earthmoving machine is automatically controlled based on measurements from a three-axis gyroscope, a blade slope angle tilt sensor, and a blade tip angle tilt sensor mounted on the blade. A three-axis gyroscope has high dynamic response and high resistance to mechanical disturbances but is subject to potentially unbounded errors. A tilt sensor has bounded errors but has a slow dynamic response and a high sensitivity to mechanical disturbances. The combination of a three-axis gyroscope and two tilt sensors provides an advantageous measurement system. Algorithms for performing proper fusion of the measurements account for the lack of synchronization between the three-axis gyroscope and the tilt sensors and also screen out invalid measurements from the tilt sensors. The blade slope angle is controlled based on a reference blade slope angle and an estimate of the blade slope angle computed from properly fused measurements.</p> |
申请公布号 |
CA2829336(C) |
申请公布日期 |
2015.12.29 |
申请号 |
CA20112829336 |
申请日期 |
2011.08.12 |
申请人 |
TOPCON POSITIONING SYSTEMS, INC. |
发明人 |
KONNO, HIROYUKI;BRABEC, VERNON JOSEPH;GRAHAM, RENARD TOMAS |
分类号 |
E02F3/84;E01C19/00 |
主分类号 |
E02F3/84 |
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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