公开(公告)号：US10392781B2

公开(公告)日：2019-08-27

申请号：US16288941

申请日：2019-02-28

Applicant: KCM Corporation

Inventor： Kohtaroh Uno ,  Shoroku Kawahara ,  Keigo Kikuchi ,  Koji Hyodo ,  Atsushi Shimazu

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

Abstract: 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.