公开(公告)号：US20020100460A1

公开(公告)日：2002-08-01

申请号：US09772023

申请日：2001-01-29

Applicant: DETROIT DIESEL CORPORATION

Inventor： Martin A. Romzek ,  Richard Marcis

IPC: G06F007/00 ,  F02M025/07 ,  F02B047/08

CPC classification number: F02D41/005 ,  F02D41/0072 ,  Y02T10/47

Abstract: A method for controlling an internal combustion engine having an EGR circuit including an exhaust gas recirculation valve for diverting exhaust gas from an engine exhaust to an engine intake includes ascertaining a predefined threshold based on at least one engine operating condition and preventing the EGR valve from opening if the at least one engine operating condition is below the predefined threshold to reduce or eliminate visible black smoke which may occur during transient conditions. In one embodiment, the engine operating condition represents EGR boost pressure.

Abstract translation: 一种用于控制具有EGR回路的内燃机的方法，所述EGR回路包括用于将排气从发动机排气转向发动机进气口的排气再循环阀，包括基于至少一个发动机工作状态确定预定阈值，并防止EGR阀打开 如果至少一个发动机操作条件低于预定阈值以减少或消除在瞬态条件下可能发生的可见黑烟。 在一个实施例中，发动机运转状态表示EGR增压压力。