发明名称 WORK VEHICLE
摘要 A hydraulic oil supply circuit of a work vehicle is configured to supply hydraulic oil to a transmission. A hydraulic oil warming circuit is configured to warm up the hydraulic oil. A control unit is configured to control the transmission, the hydraulic oil supply circuit, and the hydraulic oil warming circuit. The transmission includes a hydraulic clutch and a clutch control valve. The clutch control valve is configured to control the pressure of the hydraulic oil supplied to the hydraulic clutch according to a command from the control unit. When the control unit determines that the temperature of the hydraulic oil is low, it is configured to output a warming up command for operation of a warming up function. The hydraulic oil warming circuit is configured to warm up the hydraulic oil by causing a pressure loss in a flow path for the hydraulic oil.
申请公布号 US2016144860(A1) 申请公布日期 2016.05.26
申请号 US201414903316 申请日期 2014.06.18
申请人 KOMATSU LTD. 发明人 NAITO Makoto;NAITO Shinichi
分类号 B60W30/18;E02F9/20;F16H3/46;B60W10/02;B60W10/115 主分类号 B60W30/18
代理机构 代理人
主权项 1. A work vehicle, comprising: an engine; a transmission configured to convert a driving force from the engine; a hydraulic oil supply circuit configured to supply hydraulic oil to the transmission; a hydraulic oil warming circuit configured to warm up the hydraulic oil; and a control unit configured to control the transmission, the hydraulic oil supply circuit, and the hydraulic oil warming circuit, the transmission including a hydraulic clutch; anda clutch control valve configured to control a pressure of the hydraulic oil supplied to the hydraulic clutch according to a command from the control unit, the control unit is being configured to output a warming up command to cause the warming up function to be performed when the control unit determines that the temperature of the hydraulic oil is low; and the hydraulic oil warming circuit being configured to warm up the hydraulic oil by causing a pressure loss in a flow path for the hydraulic oil.
地址 Tokyo JP