公开(公告)号：US20190226179A1

公开(公告)日：2019-07-25

申请号：US16288941

申请日：2019-02-28

申请人： KCM Corporation

发明人： Kohtaroh UNO ,  Shoroku KAWAHARA ,  Keigo KIKUCHI ,  Koji HYODO ,  Atsushi SHIMAZU

IPC分类号： E02F9/22 ,  F02D29/04 ,  E02F9/20 ,  E02F9/08 ,  E02F3/28 ,  F16H61/468 ,  E02F9/02 ,  E02F3/43

CPC分类号： E02F9/2253 ,  E02F3/283 ,  E02F3/431 ,  E02F9/02 ,  E02F9/0841 ,  E02F9/2066 ,  E02F9/2289 ,  E02F9/2296 ,  F02D29/04 ,  F16H61/468

摘要： To improve working efficiency in an eco mode when a power mode and the eco mode have been set in a wheel loader, the wheel loader is provided with a controller having an eco mode characteristic line, a power mode characteristic line, and a lifting operation characteristic line having a matching point C located between a matching point A between a working device operating engine torque characteristic line and the eco mode characteristic line and a matching point B between the working device operating engine torque characteristic line and the power mode characteristic line. The controller includes a control portion, which controls a HST pump in accordance with the lifting operation characteristic line when lifting operation of a lift arm is detected while the eco mode has been selected by a work mode selecting portion.