CONTROL STRATEGIES FOR LEAN BURN SPARK IGNITION ENGINES

    公开(公告)号:US20180298870A1

    公开(公告)日:2018-10-18

    申请号:US16013304

    申请日:2018-06-20

    Applicant: Cummins Inc.

    Abstract: A system for controlling one or more conditions associated with combustion events in one or more cylinders of an engine while generally maintaining a spark timing value at a relatively constant value. The system includes a controller configured to determine one or more temporary adjustments to the spark timing value that brings one or more conditions, such as, for example, engine knock levels and/or NOx levels to around, or within, a corresponding target or threshold level(s). Following selection and implementation of one of the adjustments to the spark timing value, the controller implement adjustments to the adjusted spark timing value to return to a target spark timing value. The controller can further be adapted to determine adjustments to the air-to-fuel ratio to accommodate operation of the engine at the target spark timing value while maintaining the one or more conditions at or below the corresponding threshold or target level(s).

    Exhaust gas recirculation and control with twin scroll turbines
    4.
    发明授权
    Exhaust gas recirculation and control with twin scroll turbines 有权
    排气再循环和双涡轮涡轮机控制

    公开(公告)号:US09249761B2

    公开(公告)日:2016-02-02

    申请号:US13917189

    申请日:2013-06-13

    Applicant: Cummins Inc.

    CPC classification number: F02M26/42 F02M26/05 F02M26/43

    Abstract: Systems and methods for internal combustion engine operation with exhaust gas recirculation and turbocharging are disclosed. The systems include an exhaust gas recirculation loop for recirculating exhaust gas flow from a first portion of the cylinders of the engine into an intake system prior to combustion. The system further includes a turbine with first and second inlets for receiving exhaust gas flows from respective first and second parts of the exhaust gas of the remaining portion of the cylinders.

    Abstract translation: 公开了具有废气再循环和涡轮增压的内燃机操作的系统和方法。 该系统包括废气再循环回路,用于在燃烧之前使排气流从发动机的气缸的第一部分循环到进气系统中。 该系统还包括具有第一和第二入口的涡轮机,用于接收来自气缸的剩余部分的废气的相应第一和第二部分的废气流。

    EXHAUST GAS RECIRCULATION AND CONTROL WITH TWIN SCROLL TURBINES
    5.
    发明申请
    EXHAUST GAS RECIRCULATION AND CONTROL WITH TWIN SCROLL TURBINES 有权
    排气回收和控制与双滚动涡轮机

    公开(公告)号:US20140366532A1

    公开(公告)日:2014-12-18

    申请号:US13917189

    申请日:2013-06-13

    Applicant: Cummins Inc.

    CPC classification number: F02M26/42 F02M26/05 F02M26/43

    Abstract: Systems and methods for internal combustion engine operation with exhaust gas recirculation and turbocharging are disclosed. The systems include an exhaust gas recirculation loop for recirculating exhaust gas flow from a first portion of the cylinders of the engine into an intake system prior to combustion. The system further includes a turbine with first and second inlets for receiving exhaust gas flows from respective first and second parts of the exhaust gas of the remaining portion of the cylinders.

    Abstract translation: 公开了具有废气再循环和涡轮增压的内燃机操作的系统和方法。 该系统包括废气再循环回路,用于在燃烧之前使排气流从发动机的气缸的第一部分循环到进气系统中。 该系统还包括具有第一和第二入口的涡轮机,用于接收来自气缸的剩余部分的废气的相应第一和第二部分的废气流。

    DIGITAL TWIN FOR AN ELECTRONIC CONTROL MODULE

    公开(公告)号:US20220258751A1

    公开(公告)日:2022-08-18

    申请号:US17628824

    申请日:2020-07-21

    Applicant: Cummins Inc.

    Abstract: Systems and apparatuses include a vehicle system actuator, a sensor array associated with the vehicle system actuator, a vehicle controller, and a remote processing circuit. The vehicle controller is structured to receive sensor information from the sensor array, determine local control parameters based on the sensor information using a control scheme, provide local actuation information to actuators based on the local control parameters, and transmit the sensor information via a telematics device. The remote processing circuit is structured to receive the sensor information from the telematics device, determine remote control parameters based on the sensor information using the control scheme, and perform diagnostics using the remote control parameters.

    Control strategies for lean burn spark ignition engines

    公开(公告)号:US10655592B2

    公开(公告)日:2020-05-19

    申请号:US16013304

    申请日:2018-06-20

    Applicant: Cummins Inc.

    Abstract: A system for controlling one or more conditions associated with combustion events in one or more cylinders of an engine while generally maintaining a spark timing value at a relatively constant value. The system includes a controller configured to determine one or more temporary adjustments to the spark timing value that brings one or more conditions, such as, for example, engine knock levels and/or NOx levels to around, or within, a corresponding target or threshold level(s). Following selection and implementation of one of the adjustments to the spark timing value, the controller implement adjustments to the adjusted spark timing value to return to a target spark timing value. The controller can further be adapted to determine adjustments to the air-to-fuel ratio to accommodate operation of the engine at the target spark timing value while maintaining the one or more conditions at or below the corresponding threshold or target level(s).

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