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    • 6. 发明申请
    • Engine controller
    • 发动机控制器
    • US20070157604A1
    • 2007-07-12
    • US10588737
    • 2004-02-09
    • Hiromu KakuyaShinji NakagawaShiro YamaokaAtsushi Shimada
    • Hiromu KakuyaShinji NakagawaShiro YamaokaAtsushi Shimada
    • F01N3/00F02B17/00F02D41/00
    • F02D13/0261F02D13/0246F02D41/006F02D41/0275F02D41/146F02D41/1465F02D41/3035F02D41/3064F02D2041/001F02D2200/1004F02M27/04Y02T10/18Y02T10/22
    • A first, a second, and a third combustion region are defined by the air-fuel ratio of the mixture gas feeding combustion. Upon switching of combustion regions from the first combustion region to the third combustion region and from the third combustion region to the first combustion region, namely, when the second combustion region is passed, the mass of NOx emission downstream of an exhaust purifying device and the torque variation are estimated online. Based on the estimated value of the mass of NOx emission and the estimated value of the torque variation, the mass of intake air introduced into the combustion chamber is adjusted in a manner different from when normal, such as by changing the amount of lift of the intake valve, for example, so as to reduce the mass of NOx emission downstream of the exhaust purifying device and the torque variation below predetermined values upon passing of the second combustion region. Thus, the increase in exhaust emissions and the deterioration of operability during the switching of combustion regions can be suppressed.
    • 第一,第二和第三燃烧区域由混合气体供给燃烧的空燃比限定。 在将燃烧区域从第一燃烧区域切换到第三燃烧区域以及从第三燃烧区域到第一燃烧区域,即当第二燃烧区域通过时,排气净化装置的下游的NOx排放的质量和 在线估计扭矩变化。 基于NOx排放的质量的估计值和扭矩变化的估计值,引入到燃烧室中的进气的质量以不同于正常的方式进行调节,例如通过改变 例如进气阀,以便在第二燃烧区域通过时,将排气净化装置下游的NOx排放的质量减小到低于预定值的扭矩变化。 因此,可以抑制排气排放的增加和燃烧区域的切换期间的可操作性的劣化。
    • 9. 发明授权
    • Engine controller
    • 发动机控制器
    • US08001767B2
    • 2011-08-23
    • US10588737
    • 2004-02-09
    • Hiromu KakuyaShinji NakagawaShiro YamaokaAtsushi Shimada
    • Hiromu KakuyaShinji NakagawaShiro YamaokaAtsushi Shimada
    • F01N3/00
    • F02D13/0261F02D13/0246F02D41/006F02D41/0275F02D41/146F02D41/1465F02D41/3035F02D41/3064F02D2041/001F02D2200/1004F02M27/04Y02T10/18Y02T10/22
    • A first, a second, and a third combustion region are defined by the air-fuel ratio of the mixture gas feeding combustion. Upon switching of combustion regions from the first combustion region to the third combustion region and from the third combustion region to the first combustion region, namely, when the second combustion region is passed, the mass of NOx emission downstream of an exhaust purifying device and the torque variation are estimated online. Based on the estimated value of the mass of NOx emission and the estimated value of the torque variation, the mass of intake air introduced into the combustion chamber is adjusted in a manner different from when normal, such as by changing the amount of lift of the intake valve, for example, so as to reduce the mass of NOx emission downstream of the exhaust purifying device and the torque variation below predetermined values upon passing of the second combustion region. Thus, the increase in exhaust emissions and the deterioration of operability during the switching of combustion regions can be suppressed.
    • 第一,第二和第三燃烧区域由混合气体供给燃烧的空燃比限定。 在将燃烧区域从第一燃烧区域切换到第三燃烧区域以及从第三燃烧区域到第一燃烧区域,即当第二燃烧区域通过时,排气净化装置的下游的NOx排放的质量和 在线估计扭矩变化。 基于NOx排放的质量的估计值和扭矩变化的估计值,引入到燃烧室中的进气的质量以不同于正常的方式进行调节,例如通过改变 例如进气阀,以便在第二燃烧区域通过时,将排气净化装置下游的NOx排放的质量减小到低于预定值的扭矩变化。 因此,可以抑制排气排放的增加和燃烧区域的切换期间的可操作性的劣化。