公开(公告)号：US10066561B2

公开(公告)日：2018-09-04

申请号：US15139730

申请日：2016-04-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chad E. Marlett ,  Lawrence P. Ziehr ,  Francesco Cianflone ,  Francesco Castorina

IPC: F02B33/44 ,  F02M25/07 ,  F01N5/00 ,  F01N3/00 ,  F02D41/06 ,  F01N3/021 ,  F01N3/20 ,  F02B37/22 ,  F02D41/26 ,  F02D41/30 ,  F02D9/04 ,  F02D41/00 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15

Abstract: A method of controlling a rate of warm-up of an internal combustion engine fluidly connected to an exhaust system is disclosed. The method includes identifying a cold-start of the engine. The method also includes regulating, in response to the identified cold-start of the engine, an exhaust pressure modulation (EPM) valve arranged in a main exhaust passage of the exhaust system. The main exhaust passage channels engine exhaust gas to the ambient. Such regulation of the EPM valve will restrict a flow of the engine exhaust gas to the ambient and increase exhaust gas backpressure in the exhaust system up to a predetermined pressure value. Furthermore, the subject regulation of the EPM valve will increase a load on and the rate of warm-up of the engine. A vehicle having an engine and a controller programmed to control a rate of the engine's warm-up of according to the method is also disclosed.

公开(公告)号：US20170314486A1

公开(公告)日：2017-11-02

申请号：US15139730

申请日：2016-04-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chad E. Marlett ,  Lawrence P. Ziehr ,  Francesco Cianflone ,  Francesco Castorina

IPC: F02D41/06 ,  F02B37/22 ,  F01N3/20 ,  F02D41/26 ,  F01N3/021

CPC classification number: F02D41/068 ,  F01N3/021 ,  F01N3/2066 ,  F01N13/009 ,  F01N2240/36 ,  F02B37/22 ,  F02D9/04 ,  F02D41/0055 ,  F02D41/064 ,  F02D41/26 ,  F02D41/3035 ,  F02D2200/021 ,  F02D2250/34 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15 ,  Y02T10/144

Abstract: A method of controlling a rate of warm-up of an internal combustion engine fluidly connected to an exhaust system is disclosed. The method includes identifying a cold-start of the engine. The method also includes regulating, in response to the identified cold-start of the engine, an exhaust pressure modulation (EPM) valve arranged in a main exhaust passage of the exhaust system. The main exhaust passage channels engine exhaust gas to the ambient. Such regulation of the EPM valve will restrict a flow of the engine exhaust gas to the ambient and increase exhaust gas backpressure in the exhaust system up to a predetermined pressure value. Furthermore, the subject regulation of the EPM valve will increase a load on and the rate of warm-up of the engine. A vehicle having an engine and a controller programmed to control a rate of the engine's warm-up of according to the method is also disclosed.

公开(公告)号：US20150040859A1

公开(公告)日：2015-02-12

申请号：US13961942

申请日：2013-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Luca Scavone ,  Simone Barbero ,  Francesco Castorina ,  Francesco Cianflone ,  Andrea Di Giovanni ,  Andrea De Vito

IPC: F02D31/00

CPC classification number: F02D31/001 ,  F02B37/24 ,  F02D41/0005 ,  F02D41/0007 ,  F02D41/12 ,  F02D41/1446 ,  F02D41/1448 ,  F02D41/145 ,  F02D2041/1433 ,  Y02T10/144 ,  Y02T10/42

Abstract: A system and method can control exhaust braking in a vehicle. The vehicle includes an engine system. The engine system includes internal combustion engine, an intake manifold, a control module, an exhaust system, and a variable geometry turbocharger (VGT) having a turbine. The turbine includes turbine blades and vanes movable with respect to the turbine blades. The method includes the following: (a) receiving an exhaust brake torque request; (b) determining target pumping losses in the internal combustion engine based on the exhaust brake torque request; (c) determining a target exhaust gas pressure within the exhaust system based on the target pumping losses; and (d) determining a target vane position of the vanes based on the target exhaust gas pressure, wherein the target vane position yields an exhaust brake torque in accordance with the exhaust brake torque request.

Abstract translation: 一种系统和方法可以控制车辆中的排气制动。 车辆包括发动机系统。 发动机系统包括具有涡轮机的内燃机，进气歧管，控制模块，排气系统和可变几何涡轮增压器（VGT）。 涡轮机包括相对于涡轮叶片可移动的涡轮叶片和叶片。 该方法包括以下步骤：（a）接收排气制动转矩请求; （b）基于所述排气制动转矩要求确定所述内燃机中的目标泵送损失; （c）基于目标泵送损失来确定排气系统内的目标废气压力; 以及（d）基于所述目标排气压力确定所述叶片的目标叶片位置，其中所述目标叶片位置根据所述排气制动转矩请求产生排气制动转矩。