Invention Grant
- Patent Title: Apparatus, methods and systems for electrically heated particulate filter and SCR catalyst in vehicles
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Application No.: US17090279Application Date: 2020-11-05
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Publication No.: US11773761B2Publication Date: 2023-10-03
- Inventor: Jinyong Luo , Xiaobo Song , Colin L. Norris , Xing Jin , Matthew L. Anderson , Ying Yuan
- Applicant: Cummins Inc.
- Applicant Address: US IN Columbus
- Assignee: CUMMINS INC.
- Current Assignee: CUMMINS INC.
- Current Assignee Address: US IN Columbus
- Agency: Faegre Drinker Biddle & Reath LLP
- Main IPC: F01N9/00
- IPC: F01N9/00 ; F01N3/20

Abstract:
The enclosed disclosure relates to vehicle systems in which an engine, a particulate filter fluidly coupled with the engine, a selective catalytic reduction (SCR) system fluidly coupled with the engine downstream of the particulate filter, an electrical heating device implemented with the particulate filter, and a controller operatively coupled with the engine and the electrical heating device, are implemented. The controller can detect, when the engine is turned off, a condition for turning on the engine, detect a temperature of the particulate filter of the SCR system, activate the electrical heating device in response to the detected temperature being below a lower temperature threshold, and turn on the engine in response to the detected temperature being at or above the lower temperature threshold.
Public/Granted literature
- US20220136421A1 APPARATUS, METHODS AND SYSTEMS FOR ELECTRICALLY HEATED PARTICULATE FILTER AND SCR CATALYST IN VEHICLES Public/Granted day:2022-05-05
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