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    • 15. 发明授权
    • Device for detecting the misfire in an internal combustion engine
    • 用于检测内燃机失火的装置
    • US06298717B1
    • 2001-10-09
    • US09322002
    • 1999-05-28
    • Yukinobu Nishimura
    • Yukinobu Nishimura
    • G01L326
    • G01M15/11
    • A device for detecting the misfire in an internal combustion engine which features improved reliability for judging the misfire in all operation regions by using either the revolution data or the ionic current depending upon the operation region. The device comprises various sensors 1 and 2 for detecting the operation conditions Ne and Qa of the internal combustion engine, an operation region detection means 12 for detecting the operation region R from the operation conditions, a control parameter operation means 11 for operating control parameters J, P based upon the operation conditions, an ignition device 4 for igniting the internal combustion engine relying upon the control parameters, an ionic current detection unit 5 for detecting an ionic current generated upon the ignition, a first misfire judging means 15 for judging the misfire in the internal combustion engine based upon a change in the time of the revolution data Ne, a second misfire judging means 16 for judging the misfire based upon the ionic current, and a misfire judgement selection means 17 for selectively using the first misfire judging means or the second misfire judging means depending upon the operation region.
    • 一种用于检测内燃机中的失火的装置,其具有改进的可靠性,用于通过使用旋转数据或取决于操作区域的离子电流来判断所有操作区域中的失火。 该装置包括用于检测内燃机的运行状况Ne,Qa的各种传感器1,2,从运转状态检测运转区域R的运转区域检测单元12,控制参数运算单元11, ,基于操作条件的点火装置4,用于根据控制参数点燃内燃机的点火装置4,用于检测点火时产生的离子电流的离子电流检测单元5,用于判断失火的第一失火判定装置15 在基于转数Ne的时间变化的内燃机中,基于离子电流判断失火的第二失火判定装置16以及用于选择性地使用第一失火判断装置的失火判定选择装置17, 第二失火判断装置取决于操作区域。
    • 16. 发明授权
    • Apparatus for detecting an occurence of misfiring in an engine cylinder
    • 用于检测发动机气缸中的发动不良的装置
    • US5638278A
    • 1997-06-10
    • US243007
    • 1994-05-16
    • Yukinobu NishimuraAkira Demizu
    • Yukinobu NishimuraAkira Demizu
    • F02D45/00F02P17/12G01M15/04G01M15/11G06G7/70
    • G01M15/11
    • In a misfire detecting device for an internal combustion engine having a plurality of cylinders, revolution detecting device detects the revolution of an engine; arithmetic device calculates deflections in revolution of the engine for each of the cylinders on the basis of a period of revolution of the engine in correspondence to the order of combustion of the cylinders; threshold value determining device determines a misfire decision threshold value for the cylinders from a value obtained by smoothing arithmetic values which are determined for the cylinders by the arithmetic device, and a predetermined value; and misfire deciding device compares the arithmetic values provided by the arithmetic device with the threshold value to comparison, to determine the occurrence of a misfire in any one of the cylinders.
    • 在具有多个气缸的内燃机的失火检测装置中,转速检测装置检测发动机的转速; 运算装置根据发动机的转速对应于气缸的燃烧次数,计算每个气缸的发动机的转速; 阈值确定装置根据由算术装置对由气缸确定的算术值进行平滑算出的值和预定值,确定气缸的失火判定阈值; 并且失火判定装置将运算装置提供的算术值与阈值进行比较,以确定任何一个气缸中的失火的发生。
    • 17. 发明授权
    • Misfire detecting apparatus for a multi-cylinder internal combustion
engine
    • 用于多缸内燃机的失火检测装置
    • US5544058A
    • 1996-08-06
    • US138057
    • 1993-10-19
    • Akira DemizuYukinobu NishimuraMasakazu Sugai
    • Akira DemizuYukinobu NishimuraMasakazu Sugai
    • G01M15/11G06F19/00G01L3/26
    • G01M15/11
    • A microcomputer-based misfire detecting apparatus for a multi-cylinder internal combustion engine. A crank angle sensor is coupled to the engine for detecting first and second predetermined angular intervals set before and after a predetermined reference crank position close to a TDC preceding to combustion stroke in each of the cylinders. An acceleration detector is connected to the output of the crank angle sensor for determining an acceleration based on a time ratio between times taken for a crank shaft to rotate through the first and second predetermined angular intervals, respectively, from the output signal of the crank angle sensor. A misfire occurrence detector is connected to the acceleration detector for detecting misfire occurring in the engine cylinder on the basis of the output signal of the acceleration detector.
    • 一种用于多缸内燃机的基于微机的失火检测装置。 曲柄角传感器联接到发动机,用于检测在每个气缸中靠近燃烧冲程之前的TDC的预定参考曲柄位置之前和之后设置的第一和第二预定角度间​​隔。 加速度检测器连接到曲轴转角传感器的输出端,用于根据曲柄轴的旋转角度与第一和第二预定角度间​​隔之间的时间比率,根据曲轴转角的输出信号,确定加速度 传感器。 基于加速度检测器的输出信号将失火发生检测器连接到加速度检测器,用于检测在发动机气缸中发生的失火。
    • 18. 发明授权
    • Input processing circuit for air flow sensor
    • 空气流量传感器输入处理电路
    • US5167152A
    • 1992-12-01
    • US813050
    • 1991-12-23
    • Megumu ShimizuSetsuhiro ShimomuraYukinobu Nishimura
    • Megumu ShimizuSetsuhiro ShimomuraYukinobu Nishimura
    • F02D41/18G01F1/696
    • F02D41/187G01F1/696
    • An input processing circuit for an air flow sensor comprising a differential amplifier connected through two lines to an air flow sensor and having an operational amplifier an output signal from the air flow sensor and sends a result of this processing to an analogue value - digital value conversion integrated circuit. An output signal from the air flow sensor is supplied to the differential amplifier through a filter circuit so as to prevent an occurrence of error in measuring the amount of sucked air for an internal combustion engine due to various noises. A connection of an inverting input terminal end of the differential amplifier to a ground through a resistor prevents an error caused by a breakage of a reference voltage line connected between the air flow sensor and the input processing circuit. A differential input amplifier circuit also prevents an error caused by a variation in potential resulting from consumption current of an air flow sensor or the like from being generated.
    • 一种用于空气流量传感器的输入处理电路,包括通过两条线连接到空气流量传感器的差分放大器,并具有运算放大器来自空气流量传感器的输出信号,并将该处理的结果发送到模拟值 - 数字值转换 集成电路。 来自空气流量传感器的输出信号通过滤波电路被提供给差分放大器,以防止由于各种噪声而测量内燃机的吸入空气量的误差。 通过电阻将差分放大器的反相输入端与接地之间的连接,可防止连接在空气流量传感器与输入处理电路之间的基准电压线的断线引起的误差。 差分输入放大器电路还防止由空气流量传感器等的消耗电流产生的电位变化引起的误差产生。
    • 19. 发明授权
    • Engine control apparatus
    • 发动机控制装置
    • US5058552A
    • 1991-10-22
    • US497056
    • 1990-03-21
    • Setsuhiro ShimomuraSeiji WatayaYukinobu NishimuraSatoru Okubo
    • Setsuhiro ShimomuraSeiji WatayaYukinobu NishimuraSatoru Okubo
    • F02B1/04F02D35/02F02D37/02F02D41/14F02P5/04
    • F02D35/023F02D37/02F02D41/1406F02P5/045F02P5/153F02B1/04Y02T10/46
    • An engine control apparatus is provided with a control unit in which a fuel supply quantity Q.sub.f or a ignition timing .theta..sub.i is corrected to maximize an evaluation parameter A=P.sub.i /(Q.sub.a /N) obtained on the basis of a suction air quantity Q.sub.a, an engine speed N and a mean effective pressure P.sub.i in a engine, or to maximize a parameter B=P.sub.i /P.sub.b obtained on the basis of a suction pipe pressure P.sub.b and the mean effective pressure P.sub.i, or to maximize a maximum pressure P.sub.max or a mean effective pressure P.sub.i for every combustion cycle, so that control is performed on the basis of the result of the above correction. The control unit also performs feedback control of the fuel supply quantity Q.sub.f and corrects the ignition timing. Further, the control unit performs feedback control in a predetermined load-operation range of the engine, and stops the feedback control and corrects the fuel supply quantity Q.sub.f out of said predetermined load-operation range of the engine.
    • 发动机控制装置设置有控制单元,其中燃料供给量Qf或点火正时θi被校正,以使得基于吸入空气量Qa获得的评估参数A = Pi /(Qa / N)最大化, 发动机转速N和发动机中的平均有效压力Pi,或者最大化基于吸入管压力Pb和平均有效压力Pi获得的参数B = Pi / Pb,或者使最大压力Pmax或 每个燃烧循环的平均有效压力Pi,从而基于上述校正的结果进行控制。 控制单元也对燃料供给量Qf进行反馈控制,并修正点火正时。 此外,控制单元在发动机的预定负载操作范围内执行反馈控制,并且停止反馈控制,并且在发动机的预定负载操作范围之外校正燃料供给量Qf。
    • 20. 发明授权
    • Idling engine speed controlling apparatus
    • 怠速发动机转速控制装置
    • US4862851A
    • 1989-09-05
    • US183133
    • 1988-04-19
    • Shoichi WashinoYukinobu Nishimura
    • Shoichi WashinoYukinobu Nishimura
    • F02D41/08F02D41/14
    • F02D41/1401F02D41/083F02D2041/1409F02D2041/1418F02D2041/1426
    • An idling engine speed controlling apparatus has a feed-back control system to regulate engine speed to a target speed such that a torque disturbance is directly detected to convert it into a signal so that an air-flow rate or ignition timing is controlled on the basis of the sum of the signal and a time-differential of the signal, or such that sub-feed-back compensation is given to the output end of a proportional and integral controller so that an amount of air flowing in a intake air conduit is compensated with the first-order-lag component or an amount of air is controlled in response to the first-order-lag component or the second-order-lag component or the sum of or the difference between these components, or such that an output from the proportional and integral controller or an output from the actuator is fed back to the input side of the controller so as to include a transfer function of the actuator through a detection circuit.
    • 怠速发动机速度控制装置具有将发动机转速调节到目标速度的反馈控制系统,从而直接检测转矩扰动以将其转换为信号,从而基于该方式控制空气流量或点火正时 信号之和和信号的时间差,或者使得副反馈补偿被给予比例和整体控制器的输出端,使得在进气管道中流动的空气量被补偿 响应于一阶滞后分量或二阶滞后分量或这些分量的或之和或这些分量之间的差异来控制一阶滞后分量或空气量,或者使得来自 比例和积分控制器或来自致动器的输出被反馈到控制器的输入侧,以便通过检测电路包括致动器的传递函数。