公开(公告)号：US11933237B2

公开(公告)日：2024-03-19

申请号：US17843473

申请日：2022-06-17

Applicant: Cummins, Inc. ,  Tula Technology, Inc.

Inventor： J. Steven Kolhouse ,  David Langenderfer ,  David Schmidt ,  Vijay Srinivasan

IPC: F02D41/02 ,  F01N3/023 ,  F01N3/08 ,  F01N9/00 ,  F01N11/00 ,  F02D41/00 ,  F02D41/14

CPC classification number: F02D41/029 ,  F02D41/0087 ,  F02D41/1448 ,  F02D41/1454 ,  F01N3/0233 ,  F01N3/0864 ,  F01N9/002 ,  F01N9/005 ,  F01N11/002 ,  F01N11/005 ,  F01N2430/02 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2430/085 ,  F01N2430/10 ,  F01N2550/04 ,  F01N2560/025 ,  F01N2900/0418 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1606 ,  F01N2900/1611 ,  F01N2900/1806 ,  F02D2200/021 ,  F02D2200/701

Abstract: A system includes an exhaust aftertreatment system including a particulate filter and a controller. The controller is configured to: receive a particulate filter regeneration event trigger; receive information, the information comprising a temperature regarding the particulate filter; determine the temperature regarding the particulate filter is below a temperature threshold associated with a particulate filter regeneration event; and responsive to determining the temperature regarding the particulate filter is below the temperature threshold, command the engine to operate in a cylinder deactivation mode, whereby at least one cylinder of a plurality of cylinders of the engine is deactivated.

公开(公告)号：US20250065863A1

公开(公告)日：2025-02-27

申请号：US18722749

申请日：2022-10-14

Applicant: Cummins Inc.

Inventor： Dat D. Le ,  Kenneth Follen ,  Jaroslaw Leonarski ,  Carlos Lana ,  David Langenderfer

IPC: B60W20/13 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26

Abstract: Powertrains of hybrid electric vehicles, control systems for controlling the powertrains, and methods for controlling the powertrains are disclosed. The powertrain includes an engine, a motor/generator, a battery and a DC bus. The control system is configured to: operate the motor/generator in a first mode when the battery is connected to the DC bus; operate the motor/generator in a second mode when the battery is disconnected from the DC bus, wherein the second mode is a voltage control mode in which the motor/generator controls a voltage of the DC bus; and adjust at least one parameter of the powertrain to assist the motor/generator in controlling the voltage of the DC bus in the second mode.

公开(公告)号：US20240191667A1

公开(公告)日：2024-06-13

申请号：US18582574

申请日：2024-02-20

Applicant: Cummins Inc. ,  Tula Technology, Inc.

Inventor： J. Steven Kolhouse ,  David Langenderfer ,  David Schmidt ,  Vijay Srinivasan

IPC: F02D41/02 ,  F01N3/023 ,  F01N3/08 ,  F01N9/00 ,  F01N11/00 ,  F02D41/00 ,  F02D41/14

CPC classification number: F02D41/029 ,  F02D41/0087 ,  F02D41/1448 ,  F02D41/1454 ,  F01N3/0233 ,  F01N3/0864 ,  F01N9/002 ,  F01N9/005 ,  F01N11/002 ,  F01N11/005 ,  F01N2430/02 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2430/085 ,  F01N2430/10 ,  F01N2550/04 ,  F01N2560/025 ,  F01N2900/0418 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1606 ,  F01N2900/1611 ,  F01N2900/1806 ,  F02D2200/021 ,  F02D2200/701

Abstract: A system includes an exhaust aftertreatment system including a particulate filter and a controller. The controller is configured to: receive information comprising a temperature regarding a filter of the aftertreatment system; and responsive to determining that the temperature regarding the filter is below a temperature threshold, command the engine to operate according to a first firing fraction. The first firing fraction may define a number of active cylinders of the engine relative to a total number of cylinders of the engine, and correspond to a predetermined temperature value of the filter.

公开(公告)号：US20230407804A1

公开(公告)日：2023-12-21

申请号：US17843473

申请日：2022-06-17

Applicant: Cummins Inc. ,  Tula Technology, Inc.

Inventor： J. Steven Kolhouse ,  David Langenderfer ,  David Schmidt ,  Vijay Srinivasan

IPC: F02D41/02 ,  F02D41/00 ,  F02D41/14

CPC classification number: F02D41/029 ,  F02D41/0087 ,  F02D41/1454 ,  F02D41/1448 ,  F02D2200/021 ,  F02D2200/701

Abstract: A system includes an exhaust aftertreatment system including a particulate filter and a controller. The controller is configured to: receive a particulate filter regeneration event trigger; receive information, the information comprising a temperature regarding the particulate filter; determine the temperature regarding the particulate filter is below a temperature threshold associated with a particulate filter regeneration event; and responsive to determining the temperature regarding the particulate filter is below the temperature threshold, command the engine to operate in a cylinder deactivation mode, whereby at least one cylinder of a plurality of cylinders of the engine is deactivated.

公开(公告)号：US10947907B2

公开(公告)日：2021-03-16

申请号：US16700317

申请日：2019-12-02

Applicant: Cummins Inc.

Inventor： Timothy Shipp ,  David Langenderfer

IPC: F02D13/04 ,  F02D13/02

Abstract: An internal combustion engine system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through respective one of a plurality of exhaust valves, an aftertreatment system to treat exhaust emission from the engine, and a controller coupled to at least one sensor and configured to control a variable valve actuation mechanism to provide variable engine braking for thermal management.