Exhaust gas recirculation control system for internal combustion engines
    11.
    发明授权
    Exhaust gas recirculation control system for internal combustion engines 失效
    内燃机排气再循环控制系统

    公开(公告)号:US06076502A

    公开(公告)日:2000-06-20

    申请号:US42553

    申请日:1998-03-17

    摘要: An exhaust gas recirculation control system for internal combustion engines, comprising an exhaust gas recirculation passage for recirculating a part of an exhaust gas from an internal combustion engine into the engine; an exhaust gas recirculation control valve for controlling a flow rate of the exhaust gas flowing in the exhaust gas recirculation passage; an opening degree controller for controlling an opening degree of the exhaust gas recirculation control valve; an operating condition detector for detecting an operating condition of the engine; means for setting a target exhaust gas recirculation ratio depending on the detected operating condition; a combustion state detector for detecting a combustion state in at least one cylinder of the engine; means for finding an actual exhaust gas recirculation ratio of the engine based on the detected combustion state; and means for controlling the opening degree controller so as to bring the actual exhaust gas recirculation ratio to the target exhaust gas recirculation ratio.

    摘要翻译: 一种用于内燃机的废气再循环控制系统,包括用于将来自内燃机的废气的一部分再循环到发动机中的废气再循环通道; 废气再循环控制阀,用于控制在废气再循环通道中流动的废气的流量; 用于控制排气再循环控制阀的开度的开度控制器; 用于检测发动机的运行状态的操作条件检测器; 用于根据检测到的操作条件设定目标废气再循环比率的装置; 用于检测发动机的至少一个气缸中的燃烧状态的燃烧状态检测器; 用于根据检测到的燃烧状态找到发动机的实际废气再循环比的装置; 以及用于控制开度控制器以使实际废气再循环比达到目标废气再循环比的装置。

    Fuel control system for internal combustion engine

    公开(公告)号:US6006727A

    公开(公告)日:1999-12-28

    申请号:US970204

    申请日:1997-11-14

    摘要: A method for deciding the combustion state of each cylinder on the basis of an ion current signal generated between gaps of an ignition plug in an internal combustion engine, and a fuel control system which reduces a fuel injection quantity while suppressing the combustion change of each cylinder and reduces a non-combustion composition in an engine exhaust gas after starting of engine. The fuel control system for an internal combustion engine comprises: cylinder-individual fuel injection quantity correcting means 45, 46 for correcting the fuel quantity injecting quantity in each cylinder so that the sum of fuel injection quantities to be supplied to the cylinders of the internal combustion engine having a plurality of cylinders decreases in each combustion cycle of each said cylinder and a difference between the combustion state value of the first cylinder of the internal combustion engine and that of the second cylinder thereof decreases; and fuel injecting means 20 for injecting into each cylinder the fuel injection quantity for each cylinder of said internal combustion engine corrected by said fuel injection quantity correcting means for each cylinder.

    Control apparatus for internal combustion engine
    16.
    发明授权
    Control apparatus for internal combustion engine 失效
    内燃机控制装置

    公开(公告)号:US6073611A

    公开(公告)日:2000-06-13

    申请号:US17876

    申请日:1998-02-03

    摘要: A control apparatus for an internal combustion engine comprises: driving state detecting means for detecting a driving state of the internal combustion engine based on detected information from various sensors; control calculating means for calculating a control parameter of the internal combustion engine in accordance with the driving state; combustion state detecting means for detecting a combustion state amount of at least one of cylinders of the internal combustion engine; fuel property calculating means for calculating a property of a fuel supplied to the internal combustion engine based on the driving state and the combustion state amount; and parameter correcting means for correcting the control parameter in accordance with the fuel property. With this arrangement, it is possible to calculate the fuel property from an actual combustion state without using a sensor, and to correct the control parameter in accordance with the fuel property, thereby suppressing a deterioration of an exhaust gas, and enhancing a drivability.

    摘要翻译: 一种用于内燃机的控制装置,包括:驱动状态检测装置,用于根据来自各种传感器的检测信息检测内燃机的驱动状态; 控制计算装置,用于根据驾驶状态计算内燃机的控制参数; 燃烧状态检测装置,用于检测内燃机的至少一个气缸的燃烧状态量; 燃料特性计算装置,用于基于所述驱动状态和所述燃烧状态量来计算供给到所述内燃机的燃料的性质; 以及用于根据燃料特性校正控制参数的参数校正装置。 通过这种布置,可以不使用传感器从实际燃烧状态计算燃料特性,并根据燃料特性校正控制参数,从而抑制废气的劣化,提高驾驶性能。

    Exhaust gas cleaning device for an internal combustion engine
    17.
    发明授权
    Exhaust gas cleaning device for an internal combustion engine 失效
    用于内燃机的排气清洁装置

    公开(公告)号:US5099818A

    公开(公告)日:1992-03-31

    申请号:US555442

    申请日:1990-06-29

    IPC分类号: F02D41/14

    摘要: An exhaust gas cleaning device for controlling the air-to-fuel ratio of the air-fuel mixture supplied to an internal combustion engine (1) provided with a catalytic converter (14) disposed in the exhaust pipe (13) is disclosed. The air-to-fuel ratio is oscillated around the central level of the integral control or proportional plus integral feedback control signal based on the output of an air-to-fuel ratio sensor (12); the amplitude of oscillation and the proportional control amount are, or alternatively, the frequency of the oscillation is, varied in accordance with the operating condition of the engine.

    摘要翻译: PCT No.PCT / JP89 / 01130 Sec。 371日期1990年8月29日第 102(e)日期1990年8月29日PCT提交1989年10月31日PCT公布。 公开号WO90 / 05241 日本1990年5月17日。一种废气净化装置,其用于控制​​供给到配置在排气管(13)内的催化转化器(14)的内燃机(1)的空气燃料混合物的空燃比, )被公开。 基于空燃比传感器(12)的输出,空燃比围绕积分控制或比例积分反馈控制信号的中心水平振荡; 振荡的振幅和比例控制量,或者替代地,振荡的频率根据发动机的运行状态而变化。

    Device for controlling an internal combustion engine
    18.
    发明授权
    Device for controlling an internal combustion engine 失效
    用于控制内燃机的装置

    公开(公告)号:US06505465B2

    公开(公告)日:2003-01-14

    申请号:US09901064

    申请日:2001-07-10

    IPC分类号: F02M2506

    摘要: A device for controlling an internal combustion engine capable of estimating the amount of NOx emission within short periods of time maintaining high precision and realizing improved control performance without increasing the cost as a result of not using map data in the ROM. The device includes NOx operation circuit for estimating the amount of NOx in the exhaust gas from a theoretical formula and an empirical formula based upon the intake air amount Qa, intake air temperature To, pressure Pb, air-fuel ratio &lgr; and EGR rate &bgr;, and control circuit for controlling at least either the NOx purifying catalyst or the combustion state in the internal combustion engine in order to lower the amount of NOx emission.

    摘要翻译: 一种用于控制能够在短时间内估计NOx排放量的内燃机的装置,其保持高精度并且实现改进的控制性能,而不会由于不使用ROM中的地图数据而增加成本。 该装置包括:NOx运算电路,用于根据理论公式估计排气中的NOx的量,以及基于进气量Qa,进气温度To,压力Pb,空燃比lambd和EGR率β的经验公式, 以及控制电路,用于至少控制NOx净化催化剂或内燃机中的燃烧状态,以便降低NOx排放量。

    Clutch control device
    19.
    发明授权
    Clutch control device 失效
    离合器控制装置

    公开(公告)号:US5776032A

    公开(公告)日:1998-07-07

    申请号:US747048

    申请日:1996-11-12

    IPC分类号: F16D48/02 F16D48/06 B60K41/02

    摘要: An automobile clutch control device comprises a target revolving speed generator 1 for generating a target revolving speed N.sub.r of an engine, a revolving speed detector 9 for detecting a revolving speed of the engine, a revolving speed error calculating unit 2 for calculating a target revolving speed error E.sub.r between the target revolving speed N.sub.r and the detected revolving speed N.sub.s, a first controller 11a for outputting a clutch drive signal U3 which corresponds to the calculated target revolving speed error E.sub.r, a revolving speed compensator 11b for outputting an engine revolving speed compensation signal U4, and an adder 11c for adding the clutch drive signal U3 and the revolving speed compensation signal U4 and outputting a target clutch drive signal U. The clutch 12 is controlled based on the output of the adder 11c.

    摘要翻译: 汽车离合器控制装置包括用于产生发动机的目标转速Nr的目标转速发电机1,用于检测发动机的转速的转速检测器9,用于计算目标转速的转速误差运算部2 目标转速Nr与检测转速Ns之间的误差Er,用于输出与计算出的目标转速误差Er对应的离合器驱动信号U3的第一控制器11a,用于输出发动机转速补偿信号的转速补偿器11b U4,以及用于将离合器驱动信号U3和转速补偿信号U4相加并输出目标离合器驱动信号U.的加法器11c。离合器12根据加法器11c的输出进行控制。