公开(公告)号：US10329995B1

公开(公告)日：2019-06-25

申请号：US15868298

申请日：2018-01-11

Applicant: GM Global Technology Operations LLC

Inventor： Thomas Larose, Jr. ,  Nicholas Girardi ,  Douglas C. Sarsen ,  Michael A. Smith

IPC: F01P7/16 ,  F01P3/20 ,  F01N5/02 ,  F01P5/12 ,  F01P7/04 ,  F01P7/14 ,  F01P3/00

CPC classification number: F01P7/165 ,  F01N5/02 ,  F01P3/20 ,  F01P5/12 ,  F01P7/04 ,  F01P7/164 ,  F01P7/167 ,  F01P2003/005 ,  F01P2005/125 ,  F01P2007/146

Abstract: A coolant control system of a vehicle includes a coolant pump that pumps coolant to a heat exchanger. A diesel exhaust fluid (DEF) injector injects a DEF into an exhaust system and receives coolant output from the heat exchanger. A fuel heat exchanger transfers heat between coolant and fuel flowing through the fuel heat exchanger. An engine control module is configured to determine a first requested speed for DEF injector cooling, determine a second requested speed for fuel cooling, and based on at least one of the first and second requested speeds, selectively increase at least one of: opening of a valve that controls a flow rate of fuel flowing from the fuel rail to the fuel tank, a flow rate of fuel from fuel injectors of an engine to the fuel tank, and a target speed of the coolant pump.

公开(公告)号：US09133747B2

公开(公告)日：2015-09-15

申请号：US14066861

申请日：2013-10-30

Applicant: GM Global Technology Operations LLC

Inventor： Thomas Larose, Jr. ,  Christopher C. Swoish ,  Christopher Whitt ,  Justin Adam Shetney

IPC: F01N3/00 ,  F01N3/18

CPC classification number: F01N3/18 ,  F01N3/035 ,  F01N3/208 ,  F01N11/002 ,  F01N11/005 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/08 ,  F01N2610/02 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust treatment system includes a selective catalyst reduction filter (SCRF) device, a reductant delivery system, and a reductant storage module. The SCRF device includes a filter portion having a washcoat disposed thereon that defines a washcoat thickness (WCT). The reductant delivery system is configured to inject a reductant that reacts with the washcoat. The reductant storage module is in electrical communication with the reductant delivery system to determine a reductant setpoint that controls the amount of reductant injected from the reductant delivery system. The exhaust treatment system further includes a WCT compensation module configured to electrically communicate a WCT compensation value to the reductant storage module. The reductant storage module adjusts the setpoint according to the WCT compensation value such that the amount of ammonia that slips from the SCRF device is reduced as compared to the first setpoint.

Abstract translation: 排气处理系统包括选择性催化剂还原过滤器（SCRF）装置，还原剂递送系统和还原剂储存模块。 SCRF装置包括其上设置有修补基面涂层厚度（WCT）的过滤器部分。 还原剂递送系统被配置为注入与修补基面涂层反应的还原剂。 还原剂存储模块与还原剂递送系统电连通以确定控制从还原剂递送系统注入的还原剂的量的还原剂设定点。 排气处理系统还包括被配置为将WCT补偿值电连接到还原剂存储模块的WCT补偿模块。 还原剂存储模块根据WCT补偿值来调整设定值，使得与第一设定点相比，从SCRF装置滑落的氨的量减少。

公开(公告)号：US09046016B2

公开(公告)日：2015-06-02

申请号：US13672046

申请日：2012-11-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas Larose, Jr. ,  John A. Catalogna ,  Jianwen Li

IPC: F01N3/023

CPC classification number: F01N3/023 ,  F01N3/027 ,  F01N3/035 ,  F01N3/2066 ,  F01N9/002 ,  F01N2430/08 ,  F01N2900/1411 ,  F01N2900/1606 ,  Y02A50/2325 ,  Y02T10/47

Abstract: In one exemplary embodiment of the invention, a method for controlling regeneration for an exhaust system including a particulate filter is provided, where the method includes determining a mass flow rate of oxygen, determining a particulate mass, providing information describing desired set point temperatures corresponding to oxygen mass flow rates and particulate mass values and determining a temperature set point for exhaust gas entering the particulate filter based on the mass flow rate of oxygen, the particulate mass and the information describing desired set point temperatures corresponding to oxygen mass flow rates and particulate mass values. The method further includes communicating a signal to control a parameter for at least one selected from the group consisting of: a hydrocarbon injector, a heating device and a fuel injector configured to provide hydrocarbon post-injection to a cylinder of the internal combustion engine, the controlling based on the determined temperature set point.

Abstract translation: 在本发明的一个示例性实施例中，提供了一种用于控制包括微粒过滤器的排气系统的再生的方法，其中所述方法包括确定氧气的质量流量，确定颗粒物质，提供描述对应于 氧质量流量和颗粒物质值，并且基于氧质量流量，颗粒物质和描述对应于氧质量流率和颗粒物质的所需设定点温度的信息确定进入颗粒过滤器的废气的温度设定点 价值观。 所述方法还包括传达信号以控制从由以下组成的组中选择的至少一个的参数：烃注射器，加热装置和配置成向内燃机的气缸提供烃后喷射的燃料喷射器， 根据确定的温度设定点进行控制。