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    • 81. 发明授权
    • Internal combustion engine control method
    • 内燃机控制方法
    • US07258099B2
    • 2007-08-21
    • US10920252
    • 2004-08-18
    • Takashi YoshidaToshiharu NogiNoboru Tokuyasu
    • Takashi YoshidaToshiharu NogiNoboru Tokuyasu
    • F02D43/00
    • F02N99/006F01L2800/01F02D41/065F02D41/402F02D2041/0095F02N11/0814F02N19/004F02N2200/021F02N2200/0808F02N2200/0813F02N2200/105F02N2200/123F02N2300/2002
    • Satisfactory restartability has not been obtained so far because the timing of opening an exhaust valve of a cylinder under expansion stroke is adjusted for improvement of startability and a valve adjusting mechanism is always controlled in the same manner regardless of the engine status at start. In the invention, control is performed to adjust the timing of closing an intake valve so that an effective compression ratio of a cylinder under compression stroke reduces. Also, the effective compression ratio of the compression stroke cylinder is decided based on a piston position at engine restart. By varying the intake valve closing timing in the expansion stroke cylinder to reduce the effective compression ratio depending on the engine status at restart, it is possible to lessen a load imposed on a starter when the engine is restarted, and to improve startability without complicating the engine system.
    • 到目前为止还没有获得令人满意的可再生能力,因为调节了在膨胀冲程下的气缸排气阀的打开时间,以提高起动性,并且始终以相同的方式控制阀调节机构,而与起动时的发动机状态无关。 在本发明中,进行控制以调节关闭进气门的时间,使得压缩行程下的气缸的有效压缩比降低。 此外,基于发动机重起动时的活塞位置来决定压缩冲程缸的有效压缩比。 通过改变膨胀冲程气缸中的进气门关闭正时,根据重启时的发动机状态来降低有效的压缩比,可以减少发动机重新启动时对起动器施加的负荷,并且提高启动性而不会使 发动机系统。
    • 82. 发明授权
    • Diagnosing system for engine
    • 发动机诊断系统
    • US06430495B2
    • 2002-08-06
    • US09902606
    • 2001-07-12
    • Yutaka TakakuToshio IshiiToshiharu Nogi
    • Yutaka TakakuToshio IshiiToshiharu Nogi
    • G06F1900
    • F02D41/221F02D2041/389
    • A diagnosing system for an engine diagnoses malfunctions that occur in a direct-injection engine in which fuel is injected into combustion chambers or a lean-burn engine. The present invention provides a diagnosing system for an engine capable of diagnosing malfunctions in an intake air flow intensifying component and a fuel supply component and of specifying a malfunctioning part without being affected by the difference between different engines, the difference in quality between parts and aging. The diagnosing system for an engine comprises: a selecting component for selecting either a first air-fuel mixture control component or a second air-fuel mixture control component according to operating condition of an engine; a combustion condition detecting component for detecting combustion condition of the engine; and decision component for deciding a malfunction on the basis of a first combustion condition detected by the combustion condition detecting component in a state where the first air-fuel mixture control component is selected by the selecting component, and a second combustion condition detected by the combustion condition detecting component in a state where the second air-fuel mixture control component is selected by the selecting component.
    • 用于发动机的诊断系统诊断在直接喷射发动机中发生的故障,其中将燃料喷射到燃烧室或稀燃燃烧发动机中。 本发明提供了一种能够诊断进气通风增压部件和燃料供给部件中的故障的发动机的诊断系统,并且在不受不同发动机之间的差异的影响的情况下指定故障部件,部件之间的质量差异与老化 。 发动机的诊断系统包括:根据发动机的运行状态选择第一空气 - 燃料混合物控制部件或第二空气燃料混合物控制部件的选择部件; 用于检测发动机的燃烧状态的燃烧条件检测部件; 以及判定部件,其根据由所述选择部件选择了所述第一空气燃料混合控制部件的状态,基于由所述燃烧条件检测部件检测出的第一燃烧条件来决定故障,以及由所述燃烧检测出的第二燃烧状态 状态检测部件,其中所述第二空气 - 燃料混合物控制部件被所述选择部件选择。
    • 83. 发明授权
    • Control system for a gaseous fuel internal combustion engine utilizing
PID gain scheduling parameters
    • 采用PID增益调度参数的气体燃料内燃机控制系统
    • US5720266A
    • 1998-02-24
    • US707321
    • 1996-09-03
    • Toshiharu NogiGeorge Saikalis
    • Toshiharu NogiGeorge Saikalis
    • F02B77/08F02D41/00F02D41/14
    • F02D41/1477F02B77/083F02D19/023F02D19/027F02D41/0027Y02T10/32
    • A fuel control system is provided for use with an internal combustion engine having at least one cylinder, a source of gaseous fuel and an intake passageway for fluidly connecting the air intake to the combustion cylinder. The control system includes a gas flow rate sensor which generates an output signal representative of the fuel flow rate to the engine as well as a mass air flow sensor which generates a signal representative of the mass air flow rate to the engine. A fuel valve is fluidly connected in series between the source of gaseous fuel and the air intake passageway. The fuel valve is actuated by an electrical pulse stream between an open and a closed position so that the duty cycle of the pulse stream is proportional to the amount of fuel supplied to the engine. In response to the fuel flow rate signal, the air flow rate signal and a target air/fuel ratio, the control system generates PID gain scheduling parameters relative to the duty cycle of the pulse stream. The system then varies the duty cycle of the pulse stream as a function of the PID gain scheduling parameters to obtain the target air/fuel ratio. Optionally, an air/fuel sensor generates an output signal representative of the actual air/fuel ratio supplied to the engine. This signal is compared to the target air/fuel ratio and utilized to generate second PID gain scheduling parameters to further modify the duty cycle of the pulse stream in order to obtain the target air/fuel ratio.
    • 燃料控制系统被提供用于具有至少一个气缸,气体燃料源和用于将进气流体连接到燃烧气缸的进气通道的内燃机。 控制系统包括气体流量传感器,该气体流量传感器产生代表向发动机的燃料流量的输出信号,以及产生代表向发动机的质量空气流量的信号的质量空气流量传感器。 燃料阀在气态燃料源和进气通道之间串联流体连接。 燃料阀由打开和关闭位置之间的电脉冲流驱动,使得脉冲流的占空比与供给发动机的燃料量成比例。 响应于燃料流量信号,空气流量信号和目标空气/燃料比,控制系统相对于脉冲流的占空比生成PID增益调度参数。 然后系统根据PID增益调度参数改变脉冲流的占空比,以获得目标空燃比。 可选地,空气/燃料传感器产生表示提供给发动机的实际空气/燃料比的输出信号。 将该信号与目标空燃比进行比较,并用于产生第二PID增益调度参数,以进一步修改脉冲流的占空比,以获得目标空燃比。
    • 90. 发明授权
    • Fuel dispenser for internal combustion engine
    • 内燃机燃油分配器
    • US4576136A
    • 1986-03-18
    • US716942
    • 1985-03-28
    • Teruo YamauchiToshiharu NogiYoshishige Oyama
    • Teruo YamauchiToshiharu NogiYoshishige Oyama
    • F02B1/04F02D41/36F02M27/08F02M69/04F02M29/00
    • F02D41/36F02M27/08F02M69/041F02B1/04Y02T10/44Y10S261/48
    • A fuel dispensing device used in an internal combustion engine comprises a throttle valve, engine operating state sensors, a control circuit producing engine control signals in response to the outputs of the sensors, a pair of intake tubes connected to an intake passage on the downstream side of the throttle valve, with each of the tubes branching at its downstream end into two parts connected to two of cylinders of the engine, an atomizer including a pair of cylindrical atomizer rings disposed in the intake tube pair and a driver for vibrating the atomizer rings in response to a control signal from the control circuit, and a pair of injection valves disposed by the respective atomizer rings. The injection valves operate to inject the fuel in response to the control signal onto the inner wall of the respective atomizer rings, so that the fuel is atomized by the vibration of the atomizer rings, while intermixing with air, and delivered to the respective cylinders.
    • 在内燃机中使用的燃料分配装置包括节流阀,发动机运转状态传感器,响应于传感器的输出而产生发动机控制信号的控制电路,连接到下游侧的进气通道的一对进气管 其中每个管在其下游端分支成两个连接到发动机的两个气缸的部分,雾化器包括设置在进气管对中的一对圆柱形雾化器环和用于使雾化器环振动的驱动器 响应于来自控制电路的控制信号,以及由各个雾化器环设置的一对喷射阀。 喷射阀操作以响应于控制信号将燃料喷射到相应雾化器环的内壁上,使得燃料通过雾化器环的振动而雾化,同时与空气混合并被输送到相应的气缸。