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1. 发明申请

WO1997008395A1 CONTROLLER FOR EXCAVATORS 审中-公开
标题翻译：挖掘机控制器
公开(公告)号：WO1997008395A1
公开(公告)日：1997-03-06
申请号：PCT/JP1996002431
申请日：1996-08-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , FUNATO, Kouji
IPC分类号： E02F05/14
CPC分类号： E02F9/2203 , E02F3/205 , E02F3/26
摘要： In order to improve the durability of a tooth edge of an excavator and thereby an excavation efficiency thereof as well, a penetration force control unit (70) controls a hydraulic winch HWD so that a detected penetration force attains a set level, whereby the speed of the excavator (10) is controlled. A descending speed control unit (50) is adapted to control the hydraulic winch HWD so that a detected descending speed attains a set level, whereby the speed of the excavator (10) is controlled. When a detected level of the descending speed exceeds a predetermined level during a control operation of the penetration force control unit (70), a selection unit (80) shifts the control operation to that by the descending speed control unit (50). The descending speed control unit (50) is adapted to control the descending speed by a proportional integration control operation, while the penetration force control unit (70) is adapted to control the penetration force by a proportional differentiation control operation.
摘要翻译：为了提高挖掘机的齿缘的耐久性，从而提高挖掘效率，贯穿力控制单元（70）控制液压绞盘HWD，使得检测到的穿透力达到设定水平，挖掘机（10）被控制。下降速度控制单元（50）适于控制液压绞盘HWD，使得检测到的下降速度达到设定水平，从而控制挖掘机（10）的速度。当在穿透力控制单元（70）的控制操作期间检测到的下降速度的水平超过预定水平时，选择单元（80）将控制操作移动到下降速度控制单元（50）的控制操作。下降速度控制单元（50）适于通过比例积分控制操作来控制下降速度，而穿透力控制单元（70）适于通过比例微分控制操作来控制穿透力。

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