公开(公告)号：US20140081552A1

公开(公告)日：2014-03-20

申请号：US14026904

申请日：2013-09-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Stefano NIEDDU ,  Gennaro MERLINO

IPC: F02D33/00

CPC classification number: F02D33/003 ,  F02D41/1401 ,  F02D41/3836 ,  F02D2041/1409 ,  F02D2041/141 ,  F02D2041/1432 ,  F02D2041/1433

Abstract: A control method is provided for using a feed forward technique. The method includes, but is not limited to using a setpoint value of a controlled variable to calculate a compensation of the closed loop static error, summing said contribution to the setpoint value, operating an estimation of the closed loop error to obtain a feed forward contribution.

Abstract translation: 提供了一种使用前馈技术的控制方法。 该方法包括但不限于使用受控变量的设定值来计算闭环静态误差的补偿，将对所述给定值的贡献相加，操作闭环误差的估计以获得前馈贡献 。

公开(公告)号：US20180334983A1

公开(公告)日：2018-11-22

申请号：US15597741

申请日：2017-05-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gennaro MERLINO ,  Angelo CANCELLIERI ,  Umberto FERRARA ,  Francesco Concetto PESCE ,  Alessandro FORINA

IPC: F02D41/38 ,  F02D41/40 ,  F02D41/04

CPC classification number: F02D41/3827 ,  F02D41/04 ,  F02D41/403 ,  F02D41/405 ,  F02D2041/389 ,  F02D2200/06

Abstract: Methods and systems are provided for controlling fuel injections by a fuel injector in a cylinder of an internal combustion engine. First and second fuel injections are applied in each cycle of a piston in the cylinder. First and second electronic control signals are applied to the fuel injector to generate first and second fuel injections by the fuel injector during a first cycle of the piston. A hydraulic fusion state of the generated first and second fuel injections is determined. A parameter of the applied first and second electronic control signals is adjusted in response to determining the hydraulic fusion state and applied to the fuel injector to generate first and second fuel injections by the fuel injector during a second cycle of the piston subsequent to the first cycle.

公开(公告)号：US20170044946A1

公开(公告)日：2017-02-16

申请号：US15235784

申请日：2016-08-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gennaro MERLINO ,  Jaime Andres CESPEDES GARCIA

IPC: F01N3/08 ,  F02D41/26 ,  F02D41/02 ,  F01N3/035

CPC classification number: F01N3/0885 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/2066 ,  F01N9/005 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/1404 ,  F01N2900/1621 ,  F01N2900/1622 ,  F02D41/0235 ,  F02D41/0275 ,  F02D2200/0802 ,  F02D2200/0806 ,  F02D2200/0811 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method is disclosed for operating an automotive system having an internal combustion engine equipped with an exhaust gas aftertreatment system including a Lean NOx Trap (LNT) upstream of a Selective Catalytic Reduction washcoated particulate filter (SCRF). A LNT inlet temperature is monitored. A parameter representative of a quantity of NOx stored in the LNT is also monitored. A map correlating the LNT inlet temperature and the quantity of NOx stored in the LNT is used to estimate an ammonia quantity produced during a LNT regeneration. A LNT regeneration is performed, if the estimated ammonia quantity is greater than a threshold value thereof.

Abstract translation: 公开了一种用于操作具有内燃机的汽车系统的方法，所述内燃机装备有包括选择性催化还原洗涂微粒过滤器（SCRF）上游的精益NOx捕集阱（LNT）的废气后处理系统。 监测LNT入口温度。 还监视表示存储在LNT中的NOx的量的参数。 使用将LNT入口温度和存储在LNT中的NOx的量相关联的图来估计在LNT再生期间产生的氨量。 如果估计的氨量大于其阈值，则进行LNT再生。

公开(公告)号：US20160208724A1

公开(公告)日：2016-07-21

申请号：US14994535

申请日：2016-01-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Massimiliano MELIS ,  Francesco PESCE ,  Gennaro MERLINO ,  Lucio POSTRIOTI

IPC: F02D41/20

CPC classification number: F02D41/20 ,  F02D2041/2013

Abstract: A method and apparatus for energizing a solenoidal fuel injector for an internal combustion engine is disclosed. The fuel injector is electrically connected to a battery capable of providing a battery voltage and to a boost converter capable of providing a boost voltage that is higher than the battery voltage. The boost voltage is applied to a solenoid of the fuel injector to perform a first opening phase of the injector, the energy from the solenoid of the fuel injector is then discharged. A second opening phase of the fuel injector is performed, and followed by a hold phase using the battery voltage (Vbatt). Lastly, a closing phase of the fuel injector is performed.

Abstract translation: 公开了一种用于激励用于内燃机的螺线管燃料喷射器的方法和装置。 燃料喷射器电连接到能够提供电池电压的电池和能够提供高于电池电压的升压电压的升压转换器。 升压电压被施加到燃料喷射器的螺线管上，以执行喷射器的第一打开阶段，然后排出来自燃料喷射器的螺线管的能量。 执行燃料喷射器的第二打开阶段，然后使用电池电压（Vbatt）进行保持阶段。 最后，执行燃料喷射器的关闭阶段。

公开(公告)号：US20190063353A1

公开(公告)日：2019-02-28

申请号：US15682621

申请日：2017-08-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gennaro MERLINO ,  Giuseppe CONTE ,  Roberto ROMANATO

IPC: F02D41/14

Abstract: Methods and systems are provided for controlling a fuel injector included in a fuel injection system of an engine of a vehicle. A method includes receiving vehicle sensor data that is indicative of air measurement data and engine sensor measurement data. A combustion model is used to estimate, through an iterative approach, a total fuel amount for satisfying a torque request and to estimate start of injection degree based upon the received vehicle sensor data. The estimated total fuel amount and the start of injection degree are outputted for controlling the fuel injector.

公开(公告)号：US20170074137A1

公开(公告)日：2017-03-16

申请号：US15266402

申请日：2016-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Salvatore SANNINO ,  Gennaro MERLINO ,  Giancarlo CIFALI

IPC: F01N3/08 ,  F01N9/00 ,  F01N11/00

CPC classification number: F01N3/0885 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/0842 ,  F01N9/002 ,  F01N11/007 ,  F01N2550/03 ,  F01N2560/021 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2900/1402 ,  F01N2900/1404

Abstract: A method of operating an aftertreatment system of an internal combustion engine having a lean nitrogen-oxides trap and a reductant storage device placed downstream of the lean nitrogen-oxides trap is disclosed. A regeneration of the lean nitrogen-oxides trap is performed. During the regeneration, a reductant concentration between the lean nitrogen-oxides trap and the reductant storage device is measured. An amount of reductant produced by the nitrogen-oxides trap is calculated on the basis of the measured concentration. The amount of reductant produced may be used to stop regeneration of the LNT if this amount reaches the maximum available storage capacity, or to trigger a test of the proper functioning of the reductant storage device if there is at least a minimum amount of reductant available, or to switch to another operation mode of the reductant storage device and/or the LNT, in particular if this amount is larger than a threshold value.

Abstract translation: 公开了一种操作具有贫氮氧化物阱的内燃机和置于贫氮氧化物阱的下游的还原剂储存装置的后处理系统的方法。 进行贫氮氧化物阱的再生。 在再生期间，测量贫氮氧化物阱和还原剂储存装置之间的还原剂浓度。 基于测量的浓度计算由氮氧化物阱产生的还原剂的量。 如果该量达到最大可用存储容量，则所产生的还原剂的量可用于停止LNT的再生，或者如果存在至少最少量的还原剂可用，则触发对还原剂存储装置的正常功能的测试， 或者切换到还原剂存储装置和/或LNT的另一操作模式，特别是如果该量大于阈值。