发明名称 |
Interference preventing system for construction machine |
摘要 |
A calculating portion 7a calculates a distance from the tip end of a front device to an interference prevention area, and a detection line 7m detects a moving speed of a boom 1. If the tip end of the front device comes close to the interference prevention area when the boom 1 is moving upward, control is made such that, while continuing to move the boom 1 upward, a control gain calculating portion 7h and a multiplier 7i cooperatively calculate a target speed of an arm in the arm dumping direction (interference avoiding direction) corresponding to the boom-up speed, and an input limit value calculating portion 7c, an adder 7j and a minimum value selecting portion 7f cooperatively control the arm to move in the interference avoiding direction relative to a vehicle body. Interference avoidance control enabling the tip end of the front device to be moved smoothly along the vicinity of a boundary of the interference prevention area is thereby effected and the front device can be prevented from interfering with the vehicle body without reducing the maneuverability and the working efficiency.
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申请公布号 |
US5957989(A) |
申请公布日期 |
1999.09.28 |
申请号 |
US19960760572 |
申请日期 |
1996.12.04 |
申请人 |
HITACHI CONSTRUCTION MACHINERY CO. LTD. |
发明人 |
EGAWA, EIJI;WATANABE, HIROSHI;ADACHI, HIROYUKI;HOSONO, JUNICHI;NISHIDA, TOSHIAKI;KIHARA, MITSUO;HAGA, MASAKAZU |
分类号 |
E02F9/20;(IPC1-7):E02F9/24;E02F3/43;E02F9/22 |
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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