公开(公告)号：US20180030918A1

公开(公告)日：2018-02-01

申请号：US15220136

申请日：2016-07-26

Applicant: GM Global Technology Operations LLC

Inventor： Jesse Michael Gwidt ,  Jeffrey M. Hutmacher ,  Rafat F. Hattar

IPC: F02D41/40 ,  F01N11/00 ,  F02D41/02 ,  F02P5/145 ,  F01N3/20 ,  F01N3/10 ,  F02D35/02

CPC classification number: F02D41/402 ,  F01N3/101 ,  F01N3/2066 ,  F01N11/005 ,  F01N11/007 ,  F01N2430/08 ,  F01N2550/02 ,  F01N2900/0416 ,  F01N2900/0422 ,  F01N2900/08 ,  F01N2900/1602 ,  F02D35/028 ,  F02D41/024 ,  F02D41/027 ,  F02D41/401 ,  F02D2200/0802 ,  F02P5/145

Abstract: A method for operating a spark-ignition direct-injection internal combustion engine coupled to an exhaust aftertreatment system including a catalytic converter includes monitoring an operating state of the catalytic converter. The method further includes determining if a piston of the engine is entering an intake stroke. The method further includes injecting a first quantity of fuel into a cylinder in which the piston of the engine is entering the intake stroke, and injecting a second quantity of fuel into the cylinder in which the piston of the engine is entering the intake stroke.

公开(公告)号：US12196148B1

公开(公告)日：2025-01-14

申请号：US18755158

申请日：2024-06-26

Applicant: GM Global Technology Operations LLC

Inventor： Jesse Michael Gwidt ,  Mark Daniel Carr ,  Jeffrey M. Hutmacher

IPC: F02D41/40 ,  F02D41/38

Abstract: A method for controlling a plurality of fuel injectors for a vehicle may include determining a total fuel mass for a combustion stage in a cylinder. The method further may include determining a first injection mass for a first fuel injector and a second injection mass for a second fuel injector. A sum of the first injection mass and the second injection mass is equal to the total fuel mass. The first fuel injector and the second fuel injector are configured to provide fuel to the cylinder. A first minimum mass per pulse of the first fuel injector is greater than a second minimum mass per pulse of the second fuel injector. The method further may include controlling the first fuel injector and the second fuel injector based at least in part on the first injection mass and the second injection mass.

公开(公告)号：US10066576B2

公开(公告)日：2018-09-04

申请号：US15220136

申请日：2016-07-26

Applicant: GM Global Technology Operations LLC

Inventor： Jesse Michael Gwidt ,  Jeffrey M. Hutmacher ,  Rafat F. Hattar

IPC: F01N3/00 ,  F02D41/40 ,  F01N3/10 ,  F01N11/00 ,  F02D35/02 ,  F02P5/145 ,  F01N3/20 ,  F02D41/02

Abstract: A method for operating a spark-ignition direct-injection internal combustion engine coupled to an exhaust aftertreatment system including a catalytic converter includes monitoring an operating state of the catalytic converter. The method further includes determining if a piston of the engine is entering an intake stroke. The method further includes injecting a first quantity of fuel into a cylinder in which the piston of the engine is entering the intake stroke, and injecting a second quantity of fuel into the cylinder in which the piston of the engine is entering the intake stroke.