公开(公告)号：EP2623383B1

公开(公告)日：2020-08-05

申请号：EP11828737.4

申请日：2011-09-07

Applicant: Yanmar Co., Ltd.

Inventor： OOUCHIDA Takeshi ,  YUZAKI Keiichirou ,  KURODA Akifumi ,  HIRAI Tadao ,  IWAKI Koji ,  SAKATA Koji ,  KAMADA Minoru

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

公开(公告)号：EP2623383A1

公开(公告)日：2013-08-07

申请号：EP11828737.4

申请日：2011-09-07

Applicant: Yanmar Co., Ltd.

Inventor： OOUCHIDA Takeshi ,  YUZAKI Keiichirou ,  KURODA Akifumi ,  HIRAI Tadao ,  IWAKI Koji ,  SAKATA Koji ,  KAMADA Minoru

IPC: B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  F02D29/00 ,  F16H61/02

Abstract: 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.

Abstract translation: 在工作车辆141中，如果在各种工作期间以低速行驶时在旋转耕耘机24施加大量负荷，则存在排出黑烟的危险，产生爆震并引起发动机失速 。 在安装有行驶机体142的发动机70的作业车辆141中，向发动机70喷射燃料的共轨式燃料喷射装置117以及从发动机70移动动力的无级变速器159， 与转速N相关的发动机驱动点Q（Q1→Q2）和发动机70的转矩T以这样的方式改变，使得转速达到解决过载的高速侧转速N2，并且 变速传动装置159的变速比改变和调节，使得在过载作用在具有低速N1的发动机70的情况下行驶机体142的车速V不变化 转速N.