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公开(公告)号：US20230286489A1
公开(公告)日：2023-09-14
申请号：US18014403
申请日：2021-05-27
Applicant: Cummins Inc.
Inventor： Bijesh M. Shakya , Kesavan Ramakrishnan
CPC classification number: B60W10/06 , B60W10/26 , F02D29/02 , F02D41/0255 , F02D41/062 , F01N11/002 , B60W2510/244 , B60W2510/246 , B60W2710/0677 , F02D2200/0802 , F01N2590/11 , F01N2900/08 , F01N2900/104 , F01N2900/1602 , F01N2900/1626
Abstract: Emissions management systems for engines in hybrid systems include a sensor assembly and a controller. Sensor assembly is configured to provide an activation signal in response to an engine start event and to detect emissions information, including information indicative of an engine power, a driver demanded power, a catalyst temperature, a battery state of charge, and a battery temperature. Controller communicates with sensor assembly and is configured to: receive activation signal and, in response, emissions information from sensor assembly; determine an emissions reduction mode having a threshold value for catalyst temperature and having an engine power corresponding thereto; monitor emissions information; compare catalyst temperature to threshold value; cause the engine to operate in emissions reduction mode while catalyst temperature is less than threshold value; and allow the engine to operate in a normal operation mode while catalyst temperature is greater than or equal to the threshold value.
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公开(公告)号：US12275387B2
公开(公告)日：2025-04-15
申请号：US18014403
申请日：2021-05-27
Applicant: Cummins Inc.
Inventor： Bijesh M. Shakya , Kesavan Ramakrishnan
Abstract: Emissions management systems for engines in hybrid systems include a sensor assembly and a controller. Sensor assembly is configured to provide an activation signal in response to an engine start event and to detect emissions information, including information indicative of an engine power, a driver demanded power, a catalyst temperature, a battery state of charge, and a battery temperature. Controller communicates with sensor assembly and is configured to: receive activation signal and, in response, emissions information from sensor assembly; determine an emissions reduction mode having a threshold value for catalyst temperature and having an engine power corresponding thereto; monitor emissions information; compare catalyst temperature to threshold value; cause the engine to operate in emissions reduction mode while catalyst temperature is less than threshold value; and allow the engine to operate in a normal operation mode while catalyst temperature is greater than or equal to the threshold value.
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