SYSTEMS AND METHODS FOR OPERATING PASSIVE NITROGEN OXIDE ADSORBERS IN EXHAUST AFTERTREATMENT SYSTEMS
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: while controlling the bypas...
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Main Authors | , , , , , , , , |
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Format | Patent |
Language | English French German |
Published |
16.08.2023
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Subjects | |
Online Access | Get full text |
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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: while controlling the bypass valve to direct exhaust gas to the PNA, detect a torque demand that is greater than a threshold value; responsive to detecting that the torque demand is greater than the threshold value, engage a motor, coupled with a battery system, with a drive shaft of the system to meet at least a portion of the torque demand; in response to the engagement of the motor with the drive shaft not meeting all of the torque demand, engage the engine with the drive shaft to meet a remainder of the torque demand. |
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AbstractList | 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: while controlling the bypass valve to direct exhaust gas to the PNA, detect a torque demand that is greater than a threshold value; responsive to detecting that the torque demand is greater than the threshold value, engage a motor, coupled with a battery system, with a drive shaft of the system to meet at least a portion of the torque demand; in response to the engagement of the motor with the drive shaft not meeting all of the torque demand, engage the engine with the drive shaft to meet a remainder of the torque demand. |
Author | SCHMIDT, David ORTH-FARRELL, Lisa A YUAN, Ying QIU, Lu SONG, Xiaobo JIN, Xing HENRICHSEN, Lars K LUO, Jinyong NARULA, Manik |
Author_xml | – fullname: SONG, Xiaobo – fullname: QIU, Lu – fullname: YUAN, Ying – fullname: LUO, Jinyong – fullname: ORTH-FARRELL, Lisa A – fullname: JIN, Xing – fullname: SCHMIDT, David – fullname: NARULA, Manik – fullname: HENRICHSEN, Lars K |
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DocumentTitleAlternate | SYSTEME UND VERFAHREN ZUM BETREIBEN PASSIVER STICKOXIDADSORBER IN ABGASNACHBEHANDLUNGSSYSTEMEN SYSTÈMES ET PROCÉDÉS POUR FAIRE FONCTIONNER DES ADSORBEURS D'OXYDE D'AZOTE PASSIFS DANS DES SYSTÈMES DE POST-TRAITEMENT D'ÉCHAPPEMENT |
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Notes | Application Number: EP20200890112 |
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RelatedCompanies | Cummins, Inc |
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Snippet | 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... |
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SubjectTerms | BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TRANSPORTING WEAPONS |
Title | SYSTEMS AND METHODS FOR OPERATING PASSIVE NITROGEN OXIDE ADSORBERS IN EXHAUST AFTERTREATMENT SYSTEMS |
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