- 专利标题： Systems and methods for coordination of skip-fire and aftertreatment heater operation to maintain exhaust gas temperature
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申请号： US17927573申请日： 2020-05-27
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公开(公告)号： US11920533B2公开(公告)日： 2024-03-05
- 发明人: Jennifer Kay Light-Holets , J. Steven Kolhouse , Christopher R. Nelson , Anant Puri , Xiaobo Song , Avra Brahma
- 申请人： Cummins Inc. , Tula Technology, Inc.
- 申请人地址： US IN Columbus
- 专利权人： Cummins Inc.,Tula Technology, Inc.
- 当前专利权人： Cummins Inc.,Tula Technology, Inc.
- 当前专利权人地址： US IN Columbus; US CA San Jose
- 代理机构： FOLEY & LARDNER LLP
- 国际申请： PCT/US2020/034650 2020.05.27
- 国际公布： WO2021/242228A 2021.12.02
- 进入国家日期： 2022-11-23
- 主分类号： F01N3/20
- IPC分类号： F01N3/20 ; F02D41/00 ; F02D41/02 ; F02D41/38 ; F02M27/04
摘要：
A system includes an aftertreatment system heater of an exhaust aftertreatment system coupled to an engine A controller coupled to the aftertreatment system heater is configured to determine a condition of an exhaust gas from an engine and compare the condition to a predefined threshold. If the condition of the exhaust gas does not meet the predefined threshold, the controller is configured to determine whether an engine operating condition is met for activating a cylinder deactivation operating mode for the engine. If the engine operating condition is met, the controller is configured to operate the engine in the cylinder deactivation operating mode by deactivating a cylinder of a plurality of cylinders. If the engine operating condition is not met, the controller is configured to activate the aftertreatment system heater to heat the exhaust gas.
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