发明申请
US20050161090A1 Travel control device of hydraulically driven vehicle, hydraulically driven vehicle, and wheel hydraulic shovel
审中-公开
液压驱动车辆，液压驱动车辆和车轮液压挖掘机的行驶控制装置
- 专利标题： Travel control device of hydraulically driven vehicle, hydraulically driven vehicle, and wheel hydraulic shovel
- 专利标题（中）： 液压驱动车辆，液压驱动车辆和车轮液压挖掘机的行驶控制装置
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申请号： US10512146申请日： 2003-04-11
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公开(公告)号： US20050161090A1公开(公告)日： 2005-07-28
- 发明人: Hideki Haramoto , Hidetoshi Satake , Yukihiro Tatsuno , Kazuhiro Ichimura
- 申请人： Hideki Haramoto , Hidetoshi Satake , Yukihiro Tatsuno , Kazuhiro Ichimura
- 申请人地址： JP TOKYO 112-0004
- 专利权人： HITACHI CONSTRUCTION MACHINERY CO., LTD
- 当前专利权人： HITACHI CONSTRUCTION MACHINERY CO., LTD
- 当前专利权人地址： JP TOKYO 112-0004
- 优先权： JP2002-126313 20020426
- 国际申请： PCT/JP03/04634 WO 20030411
- 主分类号： F16H59/40
- IPC分类号： F16H59/40 ; F16H61/40 ; F16H61/42 ; F16H61/421 ; F16K17/26
摘要：
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.
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