公开(公告)号：US09988993B2

公开(公告)日：2018-06-05

申请号：US14026904

申请日：2013-09-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Stefano Nieddu ,  Gennaro Merlino

IPC: F02D41/14 ,  F02D41/38 ,  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.

公开(公告)号：US20190120161A1

公开(公告)日：2019-04-25

申请号：US15790605

申请日：2017-10-23

Applicant: GM Global Technology Operations LLC

Inventor： Gennaro Merlino ,  Francesco Concetto Pesce ,  Roberto Romanato

IPC: F02D41/30 ,  F02D41/20 ,  F02M51/06

CPC classification number: F02D41/3005 ,  F02D41/20 ,  F02D2041/2013 ,  F02M51/061 ,  Y10S903/906

Abstract: A fuel injection control system is usable with an engine, e.g., a diesel engine of a mild hybrid electric vehicle. The control system includes an auxiliary battery, a high-voltage (HV) battery, e.g., 48 VDC, a switching circuit with first and second switching pairs, a controller, and a fuel injector system. The controller opens and closes the switches to command an electrical current from the auxiliary or HV battery according to a predetermined injector current profile. The fuel injector system has one or more control solenoids. Windings of the solenoids are electrically connectable to the HV battery during a boost phase of the profile via opening of the first switching pair and closing of the second switching pair, and to the auxiliary battery during peak, by-pass, hold, and end-of-injection phases of the profile via closing of the first switching pair and opening of the second switching pair.

公开(公告)号：US10196997B2

公开(公告)日：2019-02-05

申请号：US15467053

申请日：2017-03-23

Applicant: GM Global Technology Operations LLC

Inventor： Gennaro Merlino ,  Giuseppe Conte ,  Ezio Spessa ,  Roberto Finesso

IPC: F02D41/14 ,  F02D41/30 ,  F02D41/00 ,  F02D41/26 ,  F02D41/40 ,  F02D11/10

Abstract: An automotive internal combustion engine combusts an air/fuel mixture to generate a drive torque. An engine control unit (ECU) determines a torque request to output a fuel request signal indicative of an amount of the fuel to inject into a cylinder of the engine. The ECU includes neural network controller installed with a neural network to generate a fuel setpoint signal based on the torque request and to define a combustion model of the engine. The neural network generates a start of injection (SOI) signal indicating a start time at which to inject the fuel based a crankshaft angle. The ECU further outputs the fuel request signal based on the fuel setpoint and the SOI. A fuel injector injects the fuel into the cylinder based on the fuel request signal to generate the drive torque indicated by the torque request.

公开(公告)号：US10443533B2

公开(公告)日：2019-10-15

申请号：US15790605

申请日：2017-10-23

Applicant: GM Global Technology Operations LLC

Inventor： Gennaro Merlino ,  Francesco Concetto Pesce ,  Roberto Romanato

IPC: F02D41/30 ,  F02D41/20 ,  F02M51/06

Abstract: A fuel injection control system is usable with an engine, e.g., a diesel engine of a mild hybrid electric vehicle. The control system includes an auxiliary battery, a high-voltage (HV) battery, e.g., 48 VDC, a switching circuit with first and second switching pairs, a controller, and a fuel injector system. The controller opens and closes the switches to command an electrical current from the auxiliary or HV battery according to a predetermined injector current profile. The fuel injector system has one or more control solenoids. Windings of the solenoids are electrically connectable to the HV battery during a boost phase of the profile via opening of the first switching pair and closing of the second switching pair, and to the auxiliary battery during peak, by-pass, hold, and end-of-injection phases of the profile via closing of the first switching pair and opening of the second switching pair.

公开(公告)号：US10138780B2

公开(公告)日：2018-11-27

申请号：US15235784

申请日：2016-08-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gennaro Merlino ,  Jaime Andres Cespedes Garcia

IPC: F01N3/00 ,  F01N3/08 ,  F01N3/035 ,  F02D41/02 ,  F01N3/20 ,  F01N9/00

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.

公开(公告)号：US10060317B2

公开(公告)日：2018-08-28

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 ,  B01D53/94 ,  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.

公开(公告)号：US20180179975A1

公开(公告)日：2018-06-28

申请号：US15467053

申请日：2017-03-23

Applicant: GM Global Technology Operations LLC

Inventor： Gennaro Merlino ,  Giuseppe Conte ,  Ezio Spessa ,  Roberto Finesso

IPC: F02D41/14 ,  F02D41/00 ,  F02D41/26 ,  F02D41/30

CPC classification number: F02D41/1405 ,  F02D11/105 ,  F02D41/0002 ,  F02D41/26 ,  F02D41/30 ,  F02D41/401 ,  F02D41/403 ,  F02D2041/1433 ,  F02D2200/0611 ,  F02D2200/101 ,  F02D2200/602 ,  Y02T10/44

Abstract: An automotive internal combustion engine combusts an air/fuel mixture to generate a drive torque. An engine control unit (ECU) determines a torque request to output a fuel request signal indicative of an amount of the fuel to inject into a cylinder of the engine. The ECU includes neural network controller installed with a neural network to generate a fuel setpoint signal based on the torque request and to define a combustion model of the engine. The neural network generates a start of injection (SOI) signal indicating a start time at which to inject the fuel based a crankshaft angle. The ECU further outputs the fuel request signal based on the fuel setpoint and the SOI. A fuel injector injects the fuel into the cylinder based on the fuel request signal to generate the drive torque indicated by the torque request.