公开(公告)号：US11898483B2

公开(公告)日：2024-02-13

申请号：US17748559

申请日：2022-05-19

Applicant: CUMMINS INC.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Xing Jin ,  David Schmidt ,  Lu Qiu ,  Lisa A. Orth-Farrell ,  Ying Yuan ,  Manik Narula ,  Lars K. Henrichsen

IPC: F01N3/28 ,  B01D53/02 ,  B01D53/94 ,  F01N3/08 ,  F01N9/00 ,  F02D29/06

CPC classification number: F01N3/2892 ,  B01D53/02 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9481 ,  B01D53/9495 ,  F01N3/0842 ,  F01N3/2803 ,  F01N9/00 ,  F02D29/06 ,  B01D2253/108 ,  B01D2253/112 ,  B01D2253/1124 ,  B01D2257/404 ,  B01D2259/4566 ,  F01N2370/04 ,  F01N2900/10 ,  F01N2900/1602

Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to, determine that the catalyst is operating under cold start conditions, control the bypass valve to direct exhaust gas to the PNA, determine that the catalyst is no longer operating under cold start conditions and continue to control the bypass valve to direct exhaust gas to the PNA for a predetermined duration, and after the elapse of the predetermined duration, control the bypass valve to direct exhaust gas to the catalyst bypassing the PNA. The controller is also configured to detect a high transient torque demand while the exhaust gas is provided to the PNA, and split the torque demand between the engine and an electric motor.

公开(公告)号：US20220388514A1

公开(公告)日：2022-12-08

申请号：US17337016

申请日：2021-06-02

Applicant: Cummins Inc.

Inventor： Kristopher R. Bare ,  Kenneth M. Follen ,  Xing Jin ,  Jinyong Luo ,  Manik Narula ,  Andrew W. Osburn ,  Anant Puri ,  Xiaobo Song ,  Ying Yuan

IPC: B60W30/18 ,  F02M31/12 ,  B60W20/20 ,  B60W20/30

Abstract: A method for managing emissions from a vehicle having an aftertreatment system is provided. The method includes: receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and a power output of an engine of the vehicle; comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold; comparing, by the controller, the power output to a power output threshold; and responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage and disengage to warm the aftertreatment system of the vehicle.

公开(公告)号：US20220290594A1

公开(公告)日：2022-09-15

申请号：US17663562

申请日：2022-05-16

Applicant: Cummins Inc.

Inventor： Kunlun Liu ,  Xiaobo Song ,  Xing Jin ,  Kristopher R. Bare ,  Sriram S. Popuri ,  Scott Robert Bardakjy ,  Agneya Turlapati

IPC: F01N3/20 ,  F02D41/06 ,  B01D53/94

Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.

公开(公告)号：US11339698B2

公开(公告)日：2022-05-24

申请号：US16884897

申请日：2020-05-27

Applicant: Cummins Inc.

Inventor： Kristopher R. Bare ,  Xing Jin ,  Jennifer Kay Light-Holets ,  Sriram S. Popuri ,  Xiaobo Song

IPC: F01N3/20 ,  F01N13/00 ,  F01N3/023 ,  F01N11/00

Abstract: A system includes a first heater positioned in or proximate to an exhaust aftertreatment system in exhaust gas-receiving communication with an engine, a second heater positioned downstream of the first heater, and a controller coupled to the first and second heaters. The controller is structured to determine, based on information indicative of a temperature regarding the exhaust aftertreatment system, that the temperature is below a temperature threshold; receive information regarding a characteristic of a battery coupled to the first heater and the second heater; control the temperature regarding the exhaust aftertreatment system without using the first or second heaters in response to determining that the characteristic of the battery is below a first threshold; and control a temperature regarding the exhaust aftertreatment system using the first heater in response to determining that the characteristic of the battery is above the first threshold but below a second threshold.