公开(公告)号：US20150292443A1

公开(公告)日：2015-10-15

申请号：US14250770

申请日：2014-04-11

Applicant: Cummins Inc.

Inventor： Emrah Arslanturk ,  Orcun Kurugol ,  Ohiorenuan J. Amu

IPC: F02M25/07 ,  F02D41/00

CPC classification number: F02D41/0007 ,  F02B37/22 ,  F02B37/24 ,  F02D21/08 ,  F02D41/0052 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02M26/05 ,  F02M26/47 ,  F02M26/48 ,  Y02T10/144 ,  Y02T10/47

Abstract: An internal combustion engine having intake and exhaust manifolds, a turbocharger with a compressor, and at least one of: an exhaust gas recirculation (EGR) valve and a variable geometry turbine (VGT). The system further includes a control computer configured to determine at least one of torque demand, pressure across the compressor, and pressure gradient ratio between the exhaust manifold and the intake manifold relative to one of exhaust manifold pressure, intake manifold pressure, and 1. The control computer performs at least one of: closing the EGR valve in response to the determined at least one of torque demand, pressure across the compressor, and pressure gradient ratio, and lessening restriction provided by the variable geometry turbine responsive to the determined at least one of torque demand, pressure across the compressor, and pressure gradient between the exhaust manifold and the intake manifold.

Abstract translation: 具有进气歧管和排气歧管的内燃机，具有压缩机的涡轮增压器，以及废气再循环（EGR）阀和可变几何涡轮机（VGT）中的至少一个。 该系统还包括控制计算机，该控制计算机被配置为相对于排气歧管压力，进气歧管压力和1中的一个确定扭矩需求，压缩机两端的压力和排气歧管与进气歧管之间的压力梯度比中的至少一个。 控制计算机执行以下中的至少一个：响应于所确定的扭矩需求，压缩机两端的压力和压力梯度比中的至少一个，以及可变几何涡轮机提供的减小限制，响应于所确定的至少一个 扭矩需求，压缩机两端的压力以及排气歧管和进气歧管之间的压力梯度。