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热词
    • 91. 发明授权
    • Apparatus and method for controlling direct injection engines
    • 用于控制直喷式发动机的装置和方法
    • US5975045A
    • 1999-11-02
    • US152462
    • 1998-09-14
    • Hiroyuki Mizuno
    • Hiroyuki Mizuno
    • F02D45/00F02D41/00F02D41/02F02D41/04F02D41/18F02D41/30F02D41/34F02D41/38F02D41/40F02M45/02F02M51/00
    • F02D41/3064F02D41/0002F02D41/38F02D2041/0015F02D2041/389F02D41/3029F02D41/402Y02T10/128Y02T10/42
    • An apparatus for controlling an engine to switch combustion modes in accordance with the load applied to the engine. An injector injects fuel into a combustion chamber to perform a plurality of combustion modes. A valve, such as a swirl control valve, is arranged in an intake passageway to adjust the intensity of the swirling motion produced in the combustion chamber. An ECU determines the combustion mode that is to be performed in accordance with the load applied to the engine. The ECU controls the valve to optimize the intensity of the swirling motion in accordance with the determined combustion mode. The ECU also controls the injector to perform the determined combustion mode. When the combustion mode that is to be performed switches between stratified charge or semi-stratified charge and homogeneous charge, the ECU controls the injector to perform semi-stratified charge combustion for a certain time period before performing a newly determined combustion mode. The ECU varies the time period in accordance with the difference between the actual position and a target position of the valve. This stabilizes combustion when switching combustion modes and produces a smooth transition between combustion modes.
    • 一种用于根据施加到发动机的负载来控制发动机来切换燃烧模式的装置。 喷射器将燃料喷射到燃烧室中以执行多种燃烧模式。 诸如涡流控制阀的阀布置在进气通道中以调节在燃烧室中产生的旋转运动的强度。 ECU根据施加到发动机的负载来确定要执行的燃烧模式。 ECU根据确定的燃烧模式控制阀门以优化旋转运动的强度。 ECU还控制喷射器执行确定的燃烧模式。 当要执行的燃烧模式在分层充电或半分层充电和均匀充电之间切换时,ECU在执行新确定的燃烧模式之前控制喷射器进行半分层充气燃烧一段时间。 ECU根据阀的实际位置和目标位置之间的差异来改变时间段。 这在燃烧模式切换时稳定燃烧,并在燃烧模式之间产生平滑的过渡。