公开(公告)号：US20160252033A1

公开(公告)日：2016-09-01

申请号：US15149290

申请日：2016-05-09

申请人： Caterpillar Inc.

发明人： Adam D. Dye ,  Andy Publes ,  Arthur L. Gilliam ,  Dustin K. Fee ,  Kirti C. Tamhane

IPC分类号： F02D41/14 ,  F02D41/40 ,  F02D17/02 ,  F02D41/30

CPC分类号： F02D41/1497 ,  F02D17/02 ,  F02D41/0087 ,  F02D41/009 ,  F02D41/3005 ,  F02D41/401 ,  F02D2200/021 ,  F02D2200/101 ,  Y02T10/44

摘要： The disclosure provides a method to operate an engine including a first set of cylinders and a second set of cylinders with the help of an engine control module (ECM). The ECM determines a current engine speed, a current engine load, and a current degree of rotation. If the current engine load is below a threshold load that corresponds to the current engine speed, the ECM selects a cylinder cutout strategy. The ECM initiates the cylinder cutout strategy wherein the fuel supply is cutout alternatively between the first set of cylinders and the second set of cylinders at a predetermined degree of rotation. The fuel injection is modified by a predetermined amount to a set of non-cutout cylinders. The ECM deactivates the cylinder cutout strategy when the current engine load exceeds the threshold load that corresponds to the current engine speed.

摘要翻译： 本公开提供了一种在发动机控制模块（ECM）的帮助下操作包括第一组气缸和第二组气缸的发动机的方法。 ECM确定当前的发动机转速，当前的发动机负荷和当前的旋转度。 如果当前发动机负载低于对应于当前发动机转速的阈值负荷，则ECM选择汽缸切断策略。 ECM启动气缸切断策略，其中燃料供应在预定旋转角度处交替地切割在第一组气缸和第二组气缸之间。 燃料喷射被预定量修改为一组非切口滚筒。 当当前发动机负载超过对应于当前发动机转速的阈值负载时，ECM将停用气缸切断策略。