公开(公告)号：US20130298530A1

公开(公告)日：2013-11-14

申请号：US13941637

申请日：2013-07-15

Applicant: Caterpillar Inc.

Inventor： Tom W. Carlill ,  Jason Soilleux ,  Alistair C. Farman ,  Guy Blundell ,  Anthony C. Rodman

IPC: F01N3/023

CPC classification number: F01N3/023 ,  F01N3/0235 ,  F01N9/002 ,  F01N2560/05 ,  F02D9/04 ,  F02D41/0055 ,  F02D41/029 ,  F02D41/08 ,  F02D41/1466 ,  F02D41/3836 ,  F02D41/402 ,  F02D2041/1431 ,  F02D2250/31 ,  F02M26/05 ,  F02M26/15 ,  F02M26/47 ,  F02M31/13 ,  Y02T10/126 ,  Y02T10/47

Abstract: A power system comprising an engine that produces exhaust, a fuel system that injects a fuel into the engine, an aftertreatment system that treats the exhaust, and is controller. The aftertreatment system includes an oxidation catalyst that converts NO from the engine into NO2, a particulate filter that traps soot from the engine, and a sensor that provides an indication of the amount of soot in the particulate filter. The controller increases an engine fuel injection pressure when the amount of soot in the particulate filter is above a threshold.

Abstract translation: 一种电力系统，包括产生排气的发动机，将燃料喷射到发动机中的燃料系统，处理排气的后处理系统，以及控制器。 后处理系统包括将NO从发动机转化为NO 2的氧化催化剂，从发动机捕集烟灰的微粒过滤器和提供微粒过滤器中的烟灰量的指示的传感器。 当微粒过滤器中的烟灰量高于阈值时，控制器增加发动机燃料喷射压力。