公开(公告)号：US20180156099A1

公开(公告)日：2018-06-07

申请号：US15370252

申请日：2016-12-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrea DUTTO ,  Giorgio STICCHI ,  Michele ROSMARINO

IPC: F01N11/00 ,  F01N3/20 ,  B01D53/94

CPC classification number: F01N11/005 ,  B01D53/9477 ,  B01D53/9495 ,  F01N3/2066 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2900/0406 ,  F01N2900/1404 ,  F01N2900/1411 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of measuring exhaust gas temperatures in an exhaust pipe of an internal combustion engine is disclosed. A value of a mass flow rate of exhaust gasses flowing into the exhaust pipe is determined. A signal yielded by a temperature sensor located in a first point of the exhaust pipe is sampled and applied as input to a first computational module that yields a corresponding first output signal. A value of the temperature of the exhaust gasses flowing in the first point of the exhaust pipe is calculated on the basis of a value of the first output signal.

公开(公告)号：US20170044951A1

公开(公告)日：2017-02-16

申请号：US15236537

申请日：2016-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michele BILANCIA ,  Giorgio STICCHI ,  Luis Daniel GUERRERO CRUZ ,  Stefano CASSANI

IPC: F01N3/20

CPC classification number: F01N3/2046 ,  F01N3/2066 ,  F01N9/00 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1453 ,  F01N2610/146 ,  F01N2900/1811 ,  F01N2900/1821 ,  Y02T10/24 ,  Y02T10/47

Abstract: A computer program, system and method are provided for thermally regulating an injector injecting a reducing agent into an exhaust pipe of an internal combustion engine. A pump is activated to deliver a coolant in a coolant circuit having a portion in heat exchange relation with the injector. A value is determined for a mass flow rate of the coolant delivered by the pump. A value is calculated for a temperature of the injector as a function of the determined value of the mass flow rate. A difference is calculated between the calculated value of the injector temperature and a predetermined set-point value thereof, and the mass flow rate of the coolant delivered by the pump is adjusted on the basis of the calculated difference.

Abstract translation: 提供了一种用于热调节将还原剂注入内燃机的排气管的喷射器的计算机程序，系统和方法。 激活泵以将冷却剂输送到具有与喷射器热交换的部分的冷却剂回路中。 确定由泵输送的冷却剂的质量流量的值。 根据质量流量的确定值，计算喷射器温度的值。 计算喷射器温度的计算值和其预定设定值之间的差异，并且基于计算出的差来调节由泵输送的冷却剂的质量流量。