发明名称 |
TRAVEL CONTROL DEVICE OF HYDRAULICALLY DRIVEN VEHICLE, HYDRAULICALLY DRIVEN VEHICLE, AND WHEEL HYDRAULIC SHOVEL |
摘要 |
<p>The present invention includes: a hydraulic pump 10 that is driven by a driving motor; a travel motion motor 12 that is driven with pressure oil supplied from the hydraulic pump 10; a travel motion control valve 11 that controls a flow rate of the pressure oil supplied from the hydraulic pump 10 to the travel motion motor 12; a means for operation 22a with which the travel motion control valve 11 is operated; a means for rotation rate detection 95 that detects a rotation rate N of the travel motion motor 12; and a means for motor over rotation prevention 14, 17, 32 that reduces the rotation rate of the travel motion motor 12 if the means for rotation rate detection 95 detects a rotation rate equal to or higher than a predetermined rotation rate upper limit Nmax. <IMAGE></p> |
申请公布号 |
EP1500850(B1) |
申请公布日期 |
2011.06.08 |
申请号 |
EP20030717566 |
申请日期 |
2003.04.11 |
申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD. |
发明人 |
HARAMOTO, HIDEKI;SATAKE, HIDETOSHI;TATSUNO, YUKIHIRO;ICHIMURA, KAZUHIRO |
分类号 |
F16H61/4017;F16H59/40;F16H61/40;F16H61/4157;F16H61/42;F16H61/421;F16H61/47 |
主分类号 |
F16H61/4017 |
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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