Invention Publication
- Patent Title: MULTIPLE HEATER EXHAUST AFTERTREATMENT SYSTEM ARCHITECTURE AND METHODS OF CONTROL THEREOF
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Application No.: US18427426Application Date: 2024-01-30
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Publication No.: US20240167408A1Publication Date: 2024-05-23
- Inventor: Kristopher R. Bare , Xing Jin , Jennifer Kay Light-Holets , Sriram S. Popuri , Xiaobo Song
- Applicant: CUMMINS INC.
- Applicant Address: US IN Columbus
- Assignee: CUMMINS INC.
- Current Assignee: CUMMINS INC.
- Current Assignee Address: US IN Columbus
- The original application number of the division: US17751336 2022.05.23
- Main IPC: F01N3/20
- IPC: F01N3/20 ; F01N3/023 ; F01N11/00 ; F01N13/00

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 regarding the exhaust aftertreatment system is below a predefined temperature threshold; determine that the second heater is in or likely in an error state; and control a temperature regarding the exhaust aftertreatment system using the first heater in response to determining that the second heater is in or likely in the error state, wherein the first heater controls the temperature regarding the exhaust aftertreatment system after a temperature regarding an engine intake air is at or above a predefined air intake temperature threshold.
Public/Granted literature
- US12163453B2 Multiple heater exhaust aftertreatment system architecture and methods of control thereof Public/Granted day:2024-12-10
Information query
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