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    Combustion balancing in a homogeneous charge compression ignition engine
    1.
    发明申请
    Combustion balancing in a homogeneous charge compression ignition engine 审中-公开
    均质充气压缩点火发动机的燃烧平衡

    公开(公告)号：US20080178843A1

    公开(公告)日：2008-07-31

    申请号：US11657940

    申请日：2007-01-25

    申请人： Kevin P. Duffy ,  Andrew J. Kieser ,  David Schuh ,  Michael P. Liechty ,  William L. Hardy ,  Anthony Rodman

    发明人： Kevin P. Duffy ,  Andrew J. Kieser ,  David Schuh ,  Michael P. Liechty ,  William L. Hardy ,  Anthony Rodman

    IPC分类号： F02D41/04

    CPC分类号： F02D41/0085 ,  F02B29/0412 ,  F02D35/023 ,  F02D35/028 ,  F02D41/008 ,  F02D41/3035 ,  F02D2041/001 ,  F02M26/07 ,  F02M26/19 ,  F02M26/23 ,  F02M26/35 ,  Y02T10/128 ,  Y02T10/146

    摘要： A multi cylinder homogeneous charge compression ignition engine includes actuators and an engine controller configured to reduce variations in combustion phasing and/or combustion energy release among the different engine cylinders. By sensing both the phasing and magnitude of the combustion energy release, the engine controller generates control signals to combustion phase controllers and combustion energy release controllers for the engine cylinders. The control signals may be different from one another to reduce variations across the group of engine cylinders. A combustion energy release controller may be a direct injection fuel injector, and the combustion phase controller may be a variable intake valve actuator. Reducing variations in these aspects of the combustion events, allows the engine to operate at higher speeds and loads.

    摘要翻译： 多缸均质充气压缩点火发动机包括致动器和构造成减少不同发动机气缸之间的燃烧相位和/或燃烧能量释放的变化的发动机控制器。 通过检测燃烧能量释放的相位和幅度，发动机控制器产生用于发动机气缸的燃烧相位控制器和燃烧能量释放控制器的控制信号。 控制信号可以彼此不同以减少发动机气缸组的变化。 燃烧能量释放控制器可以是直接喷射燃料喷射器，并且燃烧相位控制器可以是可变进气门致动器。 减少燃烧事件的这些方面的变化使得发动机能够以更高的速度和负载运行。

    Dynamic control of a homogeneous charge compression ignition engine
    2.
    发明授权
    Dynamic control of a homogeneous charge compression ignition engine 有权
    均质充气压缩点火发动机的动态控制

    公开(公告)号：US07380540B1

    公开(公告)日：2008-06-03

    申请号：US11699522

    申请日：2007-01-29

    申请人： Kevin P. Duffy ,  Parag Mehresh ,  David Schuh ,  Andrew J. Kieser ,  Carl-Anders Hergart ,  William L. Hardy ,  Anthony Rodman ,  Michael P. Liechty

    发明人： Kevin P. Duffy ,  Parag Mehresh ,  David Schuh ,  Andrew J. Kieser ,  Carl-Anders Hergart ,  William L. Hardy ,  Anthony Rodman ,  Michael P. Liechty

    IPC分类号： F02M7/00

    CPC分类号： F02D41/3035 ,  F02B1/12 ,  F02D15/00 ,  F02D35/028 ,  F02D41/005 ,  F02D41/0085 ,  F02D2041/001 ,  F02D2250/21 ,  F02M26/08 ,  Y02T10/128

    摘要： A homogenous charge compression ignition engine is operated by compressing a charge mixture of air, exhaust and fuel in a combustion chamber to an autoignition condition of the fuel. The engine may facilitate a transition from a first combination of speed and load to a second combination of speed and load by changing the charge mixture and compression ratio. This may be accomplished in a consecutive engine cycle by adjusting both a fuel injector control signal and a variable valve control signal away from a nominal variable valve control signal. Thereafter in one or more subsequent engine cycles, more sluggish adjustments are made to at least one of a geometric compression ratio control signal and an exhaust gas recirculation control signal to allow the variable valve control signal to be readjusted back toward its nominal variable valve control signal setting. By readjusting the variable valve control signal back toward its nominal setting, the engine will be ready for another transition to a new combination of engine speed and load.

    摘要翻译： 通过将燃烧室中的空气，排气和燃料的混合物压缩到燃料的自燃状态来操作均质充量压缩点火发动机。 发动机可以通过改变电荷混合物和压缩比来促进从速度和负载的第一组合到速度和负载的第二组合的转变。 这可以在连续发动机循环中通过调节燃料喷射器控制信号和可变阀控制信号远离标称可变阀控制信号来实现。 此后，在一个或多个随后的发动机循环中，对几何压缩比控制信号和废气再循环控制信号中的至少一个进行更多的调节，以允许将可变气门控制信号重新调整回其标称可变气门控制信号 设置。 通过将可变阀控制信号重新调整回其标称设定，发动机将准备好再次转换到新的发动机转速和负载组合。

    HIGH LOAD OPERATION IN A HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE
    3.
    发明申请
    HIGH LOAD OPERATION IN A HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE 有权
    在均匀充气压缩点火发动机中的高负载运行

    公开(公告)号：US20080178848A1

    公开(公告)日：2008-07-31

    申请号：US11699523

    申请日：2007-01-29

    申请人： Kevin P. Duffy ,  Andrew J. Kieser ,  Michael P. Liechty ,  William L. Hardy ,  Anthony Rodman ,  Carl-Anders Hergart

    发明人： Kevin P. Duffy ,  Andrew J. Kieser ,  Michael P. Liechty ,  William L. Hardy ,  Anthony Rodman ,  Carl-Anders Hergart

    IPC分类号： F02D7/00

    CPC分类号： F02D41/3035 ,  F02B1/12 ,  F02B3/06 ,  F02D35/028 ,  F02D41/0065 ,  F02D41/0085 ,  F02D41/2422 ,  Y02T10/128 ,  Y02T10/47

    摘要： A homogeneous charge compression ignition engine is set up by first identifying combinations of compression ratio and exhaust gas percentages for each speed and load across the engines operating range. These identified ratios and exhaust gas percentages can then be converted into geometric compression ratio controller settings and exhaust gas recirculation rate controller settings that are mapped against speed and load, and made available to the electronic engine controller. This provides the engine controller with a look up table of what compression ratio and exhaust gas rates should be at each speed and load. The engine controller also balances at least one of combustion phasing and energy release among a plurality of cylinders in order to enable higher load operation.

    摘要翻译： 通过首先识别发动机工作范围内的每个速度和负载的压缩比和排气百分比的组合来建立均质充气压缩点火发动机。 然后将这些识别的比率和废气百分比转换为几何压缩比控制器设置和排放速度和负载映射的排气再循环速率控制器设置，并可供电子发动机控制器使用。 这为发动机控制器提供了在每个速度和负载下应该具有什么压缩比和排气速率的查找表。 发动机控制器还平衡多个气缸中的燃烧定相和能量释放中的至少一个，以便实现更高的负载运行。