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    • 4. 发明授权
    • Air-fuel ratio feedback control system for internal combustion engine
    • 内燃机空燃比反馈控制系统
    • US5531208A
    • 1996-07-02
    • US305162
    • 1994-09-13
    • Yusuke HasegawaIsao KomoriyaShusuke AkazakiEisuke Kimura
    • Yusuke HasegawaIsao KomoriyaShusuke AkazakiEisuke Kimura
    • F02D41/00F02D41/14F02D41/34F02D45/00
    • F02D41/008F02D41/1401F02D41/1473F02D2041/1409F02D2041/1415F02D2041/1416F02D2041/1417F02D2041/1418F02D2041/1431F02D2041/1433F02D41/1456
    • A system for controlling an air-fuel ratio of an air-fuel mixture supplied to each cylinder of a multicylinder internal combustion engine. A first feedback loop is provided for converging a first air-fuel ratio at a location at least either at or downstream of a confluence point of an exhaust system to a first desired air-fuel ratio by multiplying a first feedback gain to a first error therebetween. And a second feedback loop is provided in the first loop for converging a second current air-fuel ratio at each cylinder to a second desired air-fuel ratio by multiplying a second feedback gain to a second error. The first feedback loop and said second feedback loop are connected in series such that the second loop located inside the first loop. With the arrangement. the second loop operates the second air-fuel ratio converges to converge the second air-fuel ratio to the first air-fuel ratio which in turn tends to converge on the first desired air-fuel ratio such that the air-fuel ratios of all cylinders can therefore be converged on the desired air-fuel ratio.
    • 一种用于控制供应到多缸内燃机的每个气缸的空气燃料混合物的空燃比的系统。 提供第一反馈回路,用于通过将第一反馈增益乘以第一反馈增益与其间的第一误差,将排气系统的汇合点的至少一个或下游的位置处的第一空燃比收敛到第一期望的空燃比 。 并且在第一回路中提供第二反馈回路,用于通过将第二反馈增益乘以第二误差来将每个气缸处的第二当前空燃比收敛到第二所需空燃比。 第一反馈回路和所述第二反馈回路串联连接,使得位于第一回路内的第二回路。 随着安排。 所述第二回路操作所述第二空燃比收敛以将所述第二空燃比收敛到所述第一空燃比,所述第一空燃比又趋于收敛于所述第一期望空燃比,使得所有气缸的空燃比 因此可以收敛于期望的空燃比。
    • 8. 发明授权
    • Fuel injection type internal combustion engine
    • 燃油喷射型内燃机
    • US5121716A
    • 1992-06-16
    • US715812
    • 1991-06-17
    • Hitoshi TakahashiKaoru HorieKazutoshi NishizawaEisuke Kimura
    • Hitoshi TakahashiKaoru HorieKazutoshi NishizawaEisuke Kimura
    • F01L13/00F01L1/26F02B31/02F02D7/02F02D41/00F02M69/00F02M69/04F02M69/08
    • F01L1/267F02D41/0002F02D7/02F02M69/044F02M69/08F02B2275/20Y02T10/42
    • A fuel injection type internal combustion engine has a pair of intake ports provided in a cylinder head to connect a pair of intake valve bores facing a combustion chamber with a single intake inlet end. A fuel injection valve is disposed in an orientation frm the intake inlet end toward both the intake valve bores and includes an assist-air supply means for finely atomizing the fuel. A valve operating mechanism is provided for selectively stopping the intake through one of the intake ports in accordance with the operational condition of the engine. A control means is connected to the assist-air supply means for controlling the assist-air supply means to stop the supply of assist air from the assist-air supply means in at least a portion of an operational region in which the intake through one of the intake ports is substantially stopped. This ensures that the impediment of the production of the swirl by the assist air can be avoided by stopping the supply of assist air in a condition in which the intake through one of the intake ports is substantially stopped to produce a swirl in the combustion chamber.
    • 燃料喷射型内燃机具有设置在气缸盖中的一对进气口,用于将面对燃烧室的一对进气门孔与单个进气口连接。 燃料喷射阀以进气入口端朝向进气门孔的方向设置,并且包括用于使燃料精细雾化的辅助空气供给装置。 根据发动机的运行状态,提供一个阀操作机构,用于通过一个进气口选择性地停止进气。 控制装置连接到辅助空气供应装置,用于控制辅助空气供应装置,以在至少一部分操作区域中停止从辅助空气供应装置供应辅助空气,其中进气通过以下之一 进气口基本停止。 这确保了在通过一个进气口的进气基本上停止以在燃烧室中产生涡流的状态下停止辅助空气的供应来避免辅助空气产生涡流的障碍。