公开(公告)号：US20230406285A1

公开(公告)日：2023-12-21

申请号：US17825676

申请日：2022-05-26

Applicant: Ben T Dean ,  Michael A Barkey

Inventor： Ben T Dean ,  Michael A Barkey

IPC: B60W20/16 ,  B60W10/06 ,  F01N3/023 ,  F02D41/02 ,  B60W10/08 ,  F02D41/12 ,  F01L13/00 ,  F02D13/06 ,  F01L9/10 ,  F01L9/20 ,  F01L9/40

CPC classification number: B60W20/16 ,  B60W10/06 ,  F01N3/023 ,  F02D41/029 ,  B60W10/08 ,  F02D41/12 ,  F01L2013/001 ,  F02D13/06 ,  F01L9/10 ,  F01L9/20 ,  F01L9/40 ,  B60W2540/10 ,  F01L13/0005

Abstract: Hybrid powertrain control techniques include determining whether a regeneration event of a gasoline particulate filter (GPF) is necessary using a GPF loading model, commanding a full cylinder deactivation system to temporarily disable all of the cylinders of the engine instead of performing a deceleration fuel shutoff (DFSO) event of the engine and disabling fueling to the engine when the GPF regeneration event is not necessary, commanding the full cylinder deactivation system to keep all of the cylinders of the engine open and disabling fueling to the engine to perform the DFSO event when the GPF regeneration event is necessary, and controlling an electric propulsion motor to supply a requested drive torque, wherein keeping all of the cylinders of the engine open to perform the DFSO of the engine mitigates or eliminates insufficient regeneration of the GPF to thereby increase or extend its useful life.

公开(公告)号：US10233854B1

公开(公告)日：2019-03-19

申请号：US15805314

申请日：2017-11-07

Applicant: William P Attard ,  Shuonan Xu ,  Tyler Tutton ,  Michael A Barkey

Inventor： William P Attard ,  Shuonan Xu ,  Tyler Tutton ,  Michael A Barkey

IPC: F02D41/00 ,  F02D41/14 ,  F02D13/02 ,  F02D35/00 ,  F02B25/00 ,  F01N11/00 ,  F01N3/10

Abstract: A control system and method utilize an exhaust oxygen (O2) sensor and a controller configured to operate a turbocharged engine in a scavenging mode, and while the operating the engine in the scavenging mode: command a target in-cylinder air/fuel ratio (FA) for achieving a target exhaust gas FA, adjust the measurement of the exhaust O2 sensor based on a scavenging ratio and the target in-cylinder FA to obtain a modified O2 concentration, adjust an exhaust system temperature modeled by a thermal model to obtain a modified exhaust system temperature, and adjust the target in-cylinder FA based on the modified O2 concentration and the modified exhaust system temperature.