公开(公告)号：EP2623383A4

公开(公告)日：2018-05-02

申请号：EP11828737

申请日：2011-09-07

申请人： YANMAR CO LTD

发明人： OOUCHIDA TAKESHI ,  YUZAKI KEIICHIROU ,  KURODA AKIFUMI ,  HIRAI TADAO ,  IWAKI KOJI ,  SAKATA KOJI ,  KAMADA MINORU

IPC分类号： B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  B60W10/101 ,  B60W10/103 ,  B60W10/30 ,  B60W30/188 ,  F02D29/00 ,  F16H47/02 ,  F16H61/02

CPC分类号： B60W10/06 ,  B60W10/101 ,  B60W10/103 ,  B60W10/30 ,  B60W30/1882 ,  B60W30/1884 ,  B60W30/1886 ,  B60W2510/0638 ,  B60W2510/0657 ,  B60W2510/305 ,  B60W2710/1005 ,  B60W2720/10 ,  B60Y2200/221 ,  F02D29/00 ,  F16H47/02 ,  Y10T477/619

摘要： In a working vehicle 141, there is dissolved a risk that a black smoke is discharged, a knocking is generated and an engine stall is caused, if a lot of load is applied to a rotary tiller 24 during various works while traveling at a low speed. In the working vehicle 141 provided with an engine 70 which is mounted to a travel machine body 142, a common rail type fuel injection device 117 which injects fuel to the engine 70, and a continuously variable transmission 159 which shifts power from the engine 70, an engine driving point Q (Q1 †’ Q2) relating to a rotating speed N and a torque T of the engine 70 is changed in such a manner that the rotation speed come to a high speed side rotating speed N2 dissolving an overload, and a change gear ratio of the continuously variable transmission 159 is modified and regulates in such a manner that a vehicle speed V of the travel machine body 142 does not change in the case that the overload acts on the engine 70 of having a low speed N1 in the rotating speed N.