公开(公告)号：US20140311122A1

公开(公告)日：2014-10-23

申请号：US13864632

申请日：2013-04-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Eugene V. Gonze ,  Robert D. Straub ,  Michael J. Paratore, JR.

IPC: F01N3/027

CPC classification number: F01N3/027 ,  F01N3/032 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  Y02T10/24

Abstract: A particulate filter assembly, an exhaust gas treatment system having a particulate filter assembly, and a control method for flow controlled zoned regeneration of the particulate filter assembly are provided. The particulate filter assembly is configured to receive an exhaust gas stream from an internal combustion engine and includes an inlet end configured to receive the exhaust gas stream, a filter configured to remove particulates from the exhaust gas stream, a heating device positioned upstream from the filter having a plurality of zones, each zone of the plurality of zones independently operable to heat a corresponding region of the filter and an exhaust flow valve positioned downstream from the filter configured to selectively restrict flow of the exhaust gas stream through the filter.

Abstract translation: 提供了颗粒过滤器组件，具有微粒过滤器组件的废气处理系统以及用于颗粒过滤器组件的流量控制分区再生的控制方法。 微粒过滤器组件构造成接收来自内燃机的排气流，并且包括构造成接收废气流的入口端，被配置为从排气流中除去微粒的过滤器，位于过滤器上游的加热装置 具有多个区域，所述多个区域的每个区域可独立地可操作以加热所述过滤器的相应区域，以及位于所述过滤器下游的排气流量阀，所述排气流量阀被配置为选择性地限制所述排气流通过所述过滤器的流动。

公开(公告)号：US20140230408A1

公开(公告)日：2014-08-21

申请号：US13768283

申请日：2013-02-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Eugene V. Gonze ,  Chang H. Kim ,  Michael J. Paratore, JR. ,  George M. Claypole

IPC: F01N3/10

CPC classification number: F01N3/10 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/2066 ,  F01N5/02 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2240/02 ,  F01N2240/36 ,  F01N2410/06 ,  F01N2410/12 ,  F01N2610/02 ,  Y02T10/16 ,  Y02T10/24

Abstract: In one embodiment, a method for controlling nitrogen oxides in an exhaust gas received by an exhaust system, the exhaust system including a first selective catalytic reduction device, an exhaust gas heat recovery device and a second selective catalytic reduction device is provided. The method includes flowing the exhaust gas from an internal combustion engine into the first selective catalytic reduction device, receiving the exhaust gas from the first selective catalytic reduction device into the exhaust gas heat recovery device and directing the exhaust gas to a heat exchanger in the exhaust gas heat recovery device based on a temperature of the internal combustion engine proximate moving engine components. The method includes adsorbing nitrogen oxides from the exhaust gas via a nitrogen oxide adsorbing catalyst disposed in the heat exchanger and flowing the exhaust gas from the exhaust gas heat recovery device into the second selective catalytic reduction device.

Abstract translation: 在一个实施方案中，提供了一种用于控制由排气系统接收的废气中的氮氧化物的方法，所述排气系统包括第一选择性催化还原装置，废气热回收装置和第二选择性催化还原装置。 该方法包括将排气从内燃机流入第一选择性催化还原装置，将排气从第一选择性催化还原装置接收到排气热回收装置中，并将废气引导到排气中的热交换器 基于靠近移动的发动机部件的内燃机的温度的气体热回收装置。 该方法包括通过设置在热交换器中的氮氧化物吸附催化剂从排气中吸附氮氧化物，并将废气从排气热回收装置流入第二选择性催化还原装置。

公开(公告)号：US20210095630A1

公开(公告)日：2021-04-01

申请号：US16589579

申请日：2019-10-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  David E. Edwards ,  Min Sun ,  Michael J. Paratore, JR. ,  Jun Chen ,  Eugene V. Gonze ,  Sergio Quelhas

IPC: F02N19/04 ,  B60W20/15 ,  B60H1/00

Abstract: A method includes: (a) determining an engine speed of an internal combustion engine, wherein the internal combustion engine has an engine wall, and the engine wall has a wall temperature; (b) determining an engine load of the internal combustion engine; (c) determining a wall-reference temperature as a function of the engine load and the engine speed of the internal combustion engine; and (d) adjusting, using a cooling system, a volumetric flow rate of a coolant flowing through the internal combustion engine to maintain the wall temperature at the wall-reference temperature.

公开(公告)号：US20190277182A1

公开(公告)日：2019-09-12

申请号：US15918425

申请日：2018-03-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel J. Shepard ,  Eugene V. Gonze ,  Michael J. Paratore, JR.

IPC: F01P7/16 ,  F01P5/10 ,  F16H57/04

Abstract: A thermal management system for a vehicle propulsion system includes an engine having a coolant inlet and a coolant outlet, a coolant pump having an outlet in communication with the engine coolant inlet, a coolant valve that controls coolant flow from the engine coolant outlet to a transmission heat exchanger, and a coolant valve controller that selectively actuates the coolant valve during an initial transmission warm up condition, wherein the coolant valve controller selectively closes the coolant valve after a transmission temperature exceeds a target transmission temperature.

公开(公告)号：US20170356327A1

公开(公告)日：2017-12-14

申请号：US15178128

申请日：2016-06-09

Applicant: GM Global Technology Operations LLC

Inventor： Eugene V. Gonze ,  Sergio Quelhas ,  Vijay A. Ramappan ,  Michael J. Paratore, JR.

IPC: F01P7/16

CPC classification number: F01P7/16 ,  F01P7/164 ,  F01P2025/08

Abstract: A strategy for controlling an electric pump and control valve in an internal combustion engine cooling system compensates for backpressure variations and maintains system operation within design parameters. The method comprises the steps of measuring the coolant temperature, measuring the electrical current and voltage to the pump motor, determining the pump speed and coolant flow, determining the desired coolant flow, determining a negative correction to the flow control valve and pump if desired flow is less than present coolant flow and determining a positive correction to the flow control valve and pump if desired flow is more than present coolant flow and undertaking this correction to coolant flow. Thus, based upon inferred back pressure in the engine coolant system from the data relating to the pump energy input, proper coolant flow, heat rejection and engine operating temperature can be maintained in spite of variations in system flow restrictions and backpressure.

公开(公告)号：US20170321590A1

公开(公告)日：2017-11-09

申请号：US15144871

申请日：2016-05-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Luciano Nunziato Di Perna ,  Raffaello Ardanese ,  Michael J. Paratore, JR. ,  Rahul Mital ,  Jianwen Li

IPC: F01N13/00 ,  B01D53/94 ,  F01N3/035 ,  F01N3/10 ,  F01N3/28 ,  F01N3/20 ,  F01N3/027

CPC classification number: F01N13/0093 ,  B01D53/9431 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/904 ,  B01D2258/012 ,  F01N3/027 ,  F01N3/035 ,  F01N3/101 ,  F01N3/103 ,  F01N3/2066 ,  F01N3/2892 ,  F01N9/00 ,  F01N13/0097 ,  F01N2240/16 ,  F01N2240/20 ,  F01N2330/02 ,  F01N2370/02 ,  F01N2490/20 ,  F01N2610/02 ,  F01N2610/1453

Abstract: An engine exhaust system includes an exhaust pipe assembly having an engine exhaust system inlet configured to receive engine exhaust and an engine exhaust system outlet. The system includes a first selective catalytic reduction (SCR) catalyst device positioned downstream in exhaust flow from the engine exhaust system inlet. The first SCR catalyst device includes a substrate with a metallic catalyst coated on the substrate. An electric heater is configured to heat the metallic catalyst. A second SCR catalyst device is positioned downstream in engine exhaust flow from the first SCR catalyst device and upstream of the engine exhaust system outlet. The first SCR catalyst device and the exhaust pipe assembly define an empty chamber between the substrate and the second SCR catalyst device. Engine exhaust flows directly from the substrate to the second SCR catalyst device through the empty chamber.

公开(公告)号：US20140360162A1

公开(公告)日：2014-12-11

申请号：US13910676

申请日：2013-06-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Eugene V. Gonze ,  Michael J. Paratore, JR. ,  Chandra S. Namuduri

IPC: F01N3/18

CPC classification number: F01N3/2013 ,  F01N3/2066 ,  F01N9/00 ,  F01N13/009 ,  F01N2240/16 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: An exhaust gas treatment system for an internal combustion engine is provided. The exhaust gas treatment system includes an electrically heated catalyst (“EHC”) device in fluid communication with an exhaust gas conduit, a generator, a selective catalytic reduction (“SCR”) device, and a control module. The EHC device includes an electric heater and an EHC catalyst that is heated to an EHC light-off temperature. The generator is selectively operable in a target voltage mode to supply a target voltage to the electric heater. The target voltage represents a voltage required by the electric heater in order to maintain the EHC catalyst at a catalyst temperature. The SCR device is in fluid communication with the exhaust gas conduit. The SCR device is located downstream of the EHC device and includes an SCR catalyst that is selectively heated by the EHC device to a SCR light-off temperature.

Abstract translation: 提供了一种用于内燃机的废气处理系统。 排气处理系统包括与废气导管流体连通的电加热催化剂（“EHC”）装置，发电机，选择性催化还原（SCR）装置和控制模块。 EHC设备包括电加热器和加热到EHC关闭温度的EHC催化剂。 发电机可选择性地在目标电压模式下工作，以将目标电压提供给电加热器。 目标电压表示电加热器为了将EHC催化剂保持在催化剂温度所需的电压。 SCR装置与废气导管流体连通。 SCR装置位于EHC装置的下游，并且包括SCR催化剂，其被EHC装置选择性地加热到SCR关闭温度。

公开(公告)号：US20140352279A1

公开(公告)日：2014-12-04

申请号：US13906940

申请日：2013-05-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Eugene V. Gonze ,  Michael J. Paratore, JR. ,  Joshua Clifford Bedford

IPC: F01N3/021

CPC classification number: F01N3/021 ,  F01N3/035 ,  F01N3/2046 ,  F01N3/208 ,  F01N9/002 ,  F01N13/0093 ,  F01N2240/02 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2900/1404 ,  F01N2900/1406 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: An exhaust gas treatment system for an engine includes an exhaust gas inlet tube configured to receive an exhaust gas from the engine. A particulate filter, a heat exchange system and first and second selective catalytic reduction (SCR) devices are in fluid communication with the exhaust gas inlet tube. The particulate filter is configured to undergo thermal regeneration when the exhaust gas in the particulate filter is heated above a regeneration temperature. The controller is configured to control a temperature difference, between a present temperature of the second SCR device and a predefined optimal second SCR temperature, to be within a predefined threshold during the thermal regeneration of the particulate filter. The controller may be configured to direct an injector to inject a reductant into the first SCR device when the temperature difference is below the predefined threshold, thereby controlling a NOx emission in the exhaust gas.

Abstract translation: 用于发动机的废气处理系统包括被配置为从发动机接收废气的排气入口管。 微粒过滤器，热交换系统和第一和第二选择性催化还原（SCR）装置与排气入口管流体连通。 微粒过滤器构造成当微粒过滤器中的废气被加热到再生温度以上时进行热再生。 所述控制器被配置为在所述微粒过滤器的热再生期间将所述第二SCR装置的当前温度与预定的最佳第二SCR温度之间的温差控制在预定阈值内。 控制器可以被配置为当温度差低于预定阈值时引导注射器将还原剂注入到第一SCR装置中，从而控制废气中的NOx排放。

公开(公告)号：US20140157982A1

公开(公告)日：2014-06-12

申请号：US13712016

申请日：2012-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michelangelo Ardanese ,  Raffaello Ardanese ,  Michael J. Paratore, JR. ,  Eugene V. Gonze

IPC: B01D46/00

CPC classification number: B01D46/0063 ,  F01N3/0222 ,  F01N3/027 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N9/005 ,  F01N13/009 ,  F01N2330/06 ,  F01N2550/04 ,  F01N2560/06 ,  F01N2900/1606 ,  Y02A50/2325 ,  Y02T10/47

Abstract: A method for implementing particulate filter regeneration management is provided. The method includes determining a presumptive deviation between a particulate model and actual particulate level conditions of the particulate filter. The presumptive deviation is determined from identification of an occurrence of extended parking, a passive regeneration, residual particulates, and a pressure signal. Each of the extended parking, passive regeneration, residual particulate, and pressure signal is specified by a respective particulate model deviation type. The method also includes selectively controlling current to at least one zone of a plurality of zones of an electric heater to initiate a regeneration event based on the presumptive deviation, and estimating the particulate level in the particulate filter once the regeneration event is complete.

Abstract translation: 提供了一种实现微粒过滤器再生管理的方法。 该方法包括确定颗粒模型与颗粒过滤器的实际颗粒物水平条件之间的推定偏差。 推测偏差是通过对扩展停车，被动再生，残留颗粒和压力信号的发生的识别来确定的。 每个扩展停车，被动再生，残留颗粒和压力信号由相应的颗粒模型偏差类型指定。 该方法还包括选择性地将电流控制到电加热器的多个区域中的至少一个区域，以基于推定偏差来启动再生事件，并且一旦再生事件完成，则估计微粒过滤器中的微粒水平。