System, method, and apparatus for thermal management with charge air cooler bypass

    公开(公告)号:US09644573B2

    公开(公告)日:2017-05-09

    申请号:US13645055

    申请日:2012-10-04

    Applicant: Cummins Inc.

    Inventor: Adrian P. Dale

    CPC classification number: F02M26/04

    Abstract: A system includes an internal combustion engine, an EGR flow path having an EGR cooler path and an EGR cooler bypass path, a turbocharger, a compressed intake flow path, an EGR bypass valve that selectively divides the EGR flow between the EGR cooler path and the EGR cooler bypass path, a charge air cooler bypass valve that reduces an amount of cooling of compressed intake air out of the compression side of the turbocharger, and an aftertreatment component that receives the exhaust stream from the turbine side of the turbocharger. The aftertreatment component requires at least intermittent exhaust stream temperature elevation. The system includes a controller that determines that an exhaust stream temperature elevation request is present, and provides a charge air cooler bypass valve command and an EGR bypass valve command in response to the exhaust stream temperature elevation request.

    SYSTEM, METHOD, AND APPARATUS FOR THERMAL MANAGEMENT WITH CHARGE AIR COOLER BYPASS
    15.
    发明申请
    SYSTEM, METHOD, AND APPARATUS FOR THERMAL MANAGEMENT WITH CHARGE AIR COOLER BYPASS 有权
    用于空气冷却器旁路管理的系统,方法和装置

    公开(公告)号:US20130111898A1

    公开(公告)日:2013-05-09

    申请号:US13645055

    申请日:2012-10-04

    Applicant: CUMMINS INC.

    Inventor: Adrian P. Dale

    CPC classification number: F02M26/04

    Abstract: A system includes an internal combustion engine, an EGR flow path having an EGR cooler path and an EGR cooler bypass path, a turbocharger, a compressed intake flow path, an EGR bypass valve that selectively divides the EGR flow between the EGR cooler path and the EGR cooler bypass path, a charge air cooler bypass valve that reduces an amount of cooling of compressed intake air out of the compression side of the turbocharger, and an aftertreatment component that receives the exhaust stream from the turbine side of the turbocharger. The aftertreatment component requires at least intermittent exhaust stream temperature elevation. The system includes a controller that determines that an exhaust stream temperature elevation request is present, and provides a charge air cooler bypass valve command and an EGR bypass valve command in response to the exhaust stream temperature elevation request.

    Abstract translation: 一种系统包括内燃机,具有EGR冷却器路径和EGR冷却器旁通路径的EGR流路,涡轮增压器,压缩进气流路,EGR旁通阀,其选择性地将EGR流在EGR冷却器通路和 EGR冷却器旁通路径,减压从涡轮增压器的压缩侧排出的压缩进气的冷却量的增压空气冷却器旁通阀,以及从涡轮增压器的涡轮机侧接收排气流的后处理部件。 后处理部件需要至少间歇性排气流温度升高。 该系统包括确定存在排气流温度升高请求的控制器,并且响应于排气流温度升高请求而提供增压空气冷却器旁通阀命令和EGR旁通阀命令。

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