Method and apparatus for selecting a combustion mode for an internal combustion engine
    64.
    发明申请
    Method and apparatus for selecting a combustion mode for an internal combustion engine 有权
    用于选择内燃机的燃烧模式的方法和装置

    公开(公告)号:US20080257306A1

    公开(公告)日:2008-10-23

    申请号:US11736128

    申请日:2007-04-17

    IPC分类号: F02D41/00

    摘要: A method for selecting a preferred combustion mode for an internal combustion engine operative in a plurality of combustion modes is described. The method includes selecting a combustion mode in terms of first and second engine parameters, and separating the engine operating region into zones defined by the first parameter. Each of the zones is further separated into sub-zones defined by the second parameter. A combustion mode is associated with each of the sub-zones. Operating states are determined for the first and second parameters. One of the zones is identified based upon the state for the first parameter. One of the sub-zones of the identified zone is identified based upon the state for the second parameter, along with a combustion mode associated with the identified sub-zone. The engine is controlled to the preferred combustion mode, depending upon hysteresis.

    摘要翻译: 描述了用于选择以多种燃烧模式操作的内燃机的优选燃烧模式的方法。 该方法包括根据第一和第二发动机参数选择燃烧模式,以及将发动机操作区域分为由第一参数限定的区域。 每个区域进一步分成由第二参数定义的子区域。 燃烧模式与每个子区域相关联。 确定第一和第二参数的运行状态。 基于第一个参数的状态来识别其中一个区域。 基于第二参数的状态以及与所识别的子区域相关联的燃烧模式来识别所识别的区域中的一个子区域。 根据滞后,发动机被控制到优选的燃烧模式。

    Method and apparatus for selecting a combustion mode for an internal combustion engine
    67.
    发明授权
    Method and apparatus for selecting a combustion mode for an internal combustion engine 有权
    用于选择内燃机的燃烧模式的方法和装置

    公开(公告)号:US08887691B2

    公开(公告)日:2014-11-18

    申请号:US11736128

    申请日:2007-04-17

    IPC分类号: F02B15/00 F02B5/00 F02D41/30

    摘要: A method for selecting a preferred combustion mode for an internal combustion engine operative in a plurality of combustion modes is described. The method includes selecting a combustion mode in terms of first and second engine parameters, and separating the engine operating region into zones defined by the first parameter. Each of the zones is further separated into sub-zones defined by the second parameter. A combustion mode is associated with each of the sub-zones. Operating states are determined for the first and second parameters. One of the zones is identified based upon the state for the first parameter. One of the sub-zones of the identified zone is identified based upon the state for the second parameter, along with a combustion mode associated with the identified sub-zone. The engine is controlled to the preferred combustion mode, depending upon hysteresis.

    摘要翻译: 描述了用于选择以多种燃烧模式操作的内燃机的优选燃烧模式的方法。 该方法包括根据第一和第二发动机参数选择燃烧模式,以及将发动机操作区域分为由第一参数限定的区域。 每个区域进一步分成由第二参数定义的子区域。 燃烧模式与每个子区域相关联。 确定第一和第二参数的运行状态。 基于第一个参数的状态来识别其中一个区域。 基于第二参数的状态以及与所识别的子区域相关联的燃烧模式来识别所识别的区域中的一个子区域。 根据滞后,发动机被控制到优选的燃烧模式。

    Combustion balancing control strategy using normalized instantaneous heat release in HCCI engines
    68.
    发明授权
    Combustion balancing control strategy using normalized instantaneous heat release in HCCI engines 有权
    燃烧平衡控制策略在HCCI发动机中使用归一化的瞬时放热

    公开(公告)号:US08826884B2

    公开(公告)日:2014-09-09

    申请号:US12915136

    申请日:2010-10-29

    IPC分类号: F02B5/00 F02D41/30 F02D41/00

    摘要: A method for controlling combustion in a multi-cylinder internal combustion engine operating in a controlled auto-ignition mode includes providing combustion control parameters, determining peak cylinder pressures and crank angle location of the peak cylinder pressures. Cylinder volumes at the peak cylinder pressures and at intake valve closings are determined and cylinder pressures at intake valve closings are determined. A combustion parameter for each cylinder is calculated based upon the peak cylinder pressure, the cylinder pressure at the intake valve closing, the crank angle location of the peak cylinder pressure, the cylinder volume coincident with the peak cylinder pressure, and the cylinder volume at the intake valve closing. A target combustion parameter is determined and the calculated combustion parameter for each cylinder is compared to the target combustion parameter. The provided combustion control parameters for each cylinder are adjusted to balance the combustion parameter across all cylinders based on the comparison. The engine is controlled based on the adjusted provided combustion control parameters.

    摘要翻译: 用于控制在受控自动点火模式下操作的多气缸内燃机中的燃烧的方法包括提供燃烧控制参数,确定峰值气缸压力的峰值气缸压力和曲柄角位置。 确定峰值气缸压力和进气门关闭时的气缸体积,并确定进气门关闭时的气缸压力。 每个气缸的燃烧参数是根据最高气缸压力,进气门关闭时的气缸压力,峰值气缸压力的曲柄角位置,与气缸顶部压力一致的气缸容积和气缸体积 进气门关闭。 确定目标燃烧参数,并将每个气缸的计算燃烧参数与目标燃烧参数进行比较。 基于比较,调节每个气缸的提供的燃烧控制参数以平衡所有气缸上的燃烧参数。 基于经调整的提供的燃烧控制参数来控制发动机。

    Transient control strategy in spark-assisted HCCI combustion mode
    69.
    发明授权
    Transient control strategy in spark-assisted HCCI combustion mode 有权
    火花辅助HCCI燃烧模式下的瞬态控制策略

    公开(公告)号:US08627804B2

    公开(公告)日:2014-01-14

    申请号:US12946916

    申请日:2010-11-16

    IPC分类号: F02B47/08

    摘要: A method for controlling a multi-cylinder direct-injection internal combustion engine includes establishing an external exhaust gas recirculation valve from a present position to a target position to achieve a target exhaust gas recirculation, and synchronizing combustion initiation timing with actual exhaust gas recirculation as actual exhaust gas recirculation changes from a first exhaust gas recirculation value corresponding to the present position of the external exhaust gas recirculation valve to a second exhaust gas recirculation value corresponding to the target position of the external exhaust gas recirculation valve.

    摘要翻译: 一种用于控制多气缸直喷式内燃机的方法,包括:将外部废气再循环阀从当前位置建立到目标位置,以实现目标废气再循环,并将燃烧起始时间与实际废气再循环同步为实际 排气再循环从对应于外部排气再循环阀的当前位置的第一废气再循环值改变为对应于外部排气再循环阀的目标位置的第二废气再循环值。

    Combustion phasing control in spark-assisted HCCI combustion mode
    70.
    发明授权
    Combustion phasing control in spark-assisted HCCI combustion mode 有权
    火花辅助HCCI燃烧模式下的燃烧定相控制

    公开(公告)号:US08469002B2

    公开(公告)日:2013-06-25

    申请号:US12947729

    申请日:2010-11-16

    IPC分类号: F02P5/04

    摘要: A method for controlling combustion in a multi-cylinder spark-ignition direct-injection internal combustion engine includes determining a desired combustion phasing for maintaining acceptable combustion properties, monitoring combustion phasing of each cylinder, selecting a target combustion phasing corresponding to one of the cylinders having a most retarded combustion phasing, adjusting spark timing in each cylinder not having the most retarded combustion phasing to achieve the target combustion phasing to balance the combustion phasing in all the cylinders at the target combustion phasing, and adjusting an external EGR percentage to converge the balanced combustion phasing in all the cylinders toward the desired combustion phasing.

    摘要翻译: 一种用于控制多缸火花点火直喷式内燃机中的燃烧的方法,包括确定用于维持可接受的燃烧特性的期望的燃烧定相,监测每个气缸的燃烧相位,选择对应于具有 一个最迟滞的燃烧定相,调节每个气缸中不具有最大延迟燃烧定相的火花正时,以实现目标燃烧定相,以在目标燃烧定相期间平衡所有气缸中的燃烧相位,并调整外部EGR百分比以使平衡 将所有气缸内的燃烧定相朝向期望的燃烧定相。