发明名称 |
TRAVEL CONTROL APPARATUS FOR WORKING VEHICLE |
摘要 |
A working vehicle travel control apparatus, comprising: a variable displacement hydraulic pump; a variable displacement hydraulic motor connected in a closed circuit to the hydraulic pump and driven upon pressure oil from the hydraulic pump; a first control unit controls a motor displacement angle of the hydraulic motor by an electrical signal; a constant mesh transmission includes a clutch device that includes a High clutch section transmits power at a first transmission gear ratio and a Low clutch section that transmits power at a second transmission gear ratio, which is greater than the first transmission gear ratio, the constant mesh transmission transmits or interrupts power from the hydraulic motor; and a second control unit controls the first control unit so as to reduce the motor displacement angle to a predetermined value when the transmission is switched from the first transmission gear ratio to the second transmission gear ratio. |
申请公布号 |
EP2589836(A1) |
申请公布日期 |
2013.05.08 |
申请号 |
EP20110821407 |
申请日期 |
2011.06.24 |
申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD. |
发明人 |
YAMAZAKI, YASUO;KAWAHARA, SHOUROKU |
分类号 |
F16H47/02;F16H61/02 |
主分类号 |
F16H47/02 |
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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