公开(公告)号：US5333586A

公开(公告)日：1994-08-02

申请号：US76136

申请日：1993-06-14

Applicant: Wataru Fukui

Inventor： Wataru Fukui

IPC: F02D45/00 ,  F02B75/02 ,  F02D41/34 ,  F02P7/067 ,  F02P7/073 ,  F02P7/077

CPC classification number: F02D41/009 ,  F02P7/0675 ,  F02P7/073 ,  F02P7/0775 ,  F02B2075/027

Abstract: An apparatus for controlling operation of a four-cycle internal combustion engine including an odd number of cylinders comprises a reference position signal generator 1A driven by the crank shaft whose output includes a number of constant-interval pulses generated periodically at a predetermined constant time interval during a single rotation of the crank shaft, such number being equal to N times the number of cylinders, a cylinder identification signal generator 2A driven by the cam shaft interlocked to and at half the speed of the crank shaft, whose output includes a number of different-interval pulses corresponding to the number of cylinders, a synthesized reference position signal generator 33 for generating a signal T2 by dividing the frequency of the reference position signal by 1/2N, a cylinder discriminator 34, 31A for generating a cylinder discrimination signal F, and a timing control unit 32. The synthesized reference position signal is generated with high accuracy because the reference position signal is generated by a detector mounted directly on the crank shaft and thus protected against errors due to driving power transmission.

Abstract translation: 一种用于控制包括奇数气缸的四冲程内燃机的操作的装置包括由曲轴驱动的基准位置信号发生器1A，其输出包括以预定的恒定时间间隔周期性地产生的多个恒定间隔脉冲 曲轴的单次旋转，这个数量等于气缸数的N倍;由凸轮轴驱动的气缸识别信号发生器2A，其与曲轴的速度互锁，并且以曲轴的一半速度输出，其输出包括多个不同的 - 对应于气缸数的间隔脉冲，用于通过将基准位置信号的频率除以1 / 2N产生信号T2的合成基准位置信号发生器33，用于产生气缸鉴别信号F的气缸鉴别器34,31A， 以及定时控制单元32.合成的基准位置信号由高精度产生 e参考位置信号由直接安装在曲轴上的检测器产生，从而防止由于驱动动力传递引起的错误。

公开(公告)号：US5156125A

公开(公告)日：1992-10-20

申请号：US772709

申请日：1991-10-07

Applicant: Wataru Fukui ,  Toshio Iwata

Inventor： Wataru Fukui ,  Toshio Iwata

IPC: F02B75/02 ,  F02D41/34 ,  F02P7/067 ,  F02P7/077

CPC classification number: F02D41/009 ,  F02P7/0675 ,  F02P7/0775 ,  F02B2075/027

Abstract: A control apparatus for an engine has a crankshaft position sensor that generates an output signal indicating the rotational position of a crankshaft. The output signal has at least one discontinuous portion per rotation of the crankshaft indicating a reference position of the crankshaft. The timing of an engine operating parameter such as the timing of fuel injection or ignition is calculated and controlled so as to occur with the calculated timing using the reference position as a reference. A camshaft position sensor senses the rotation of a camshaft and generates a signal having pulses occurring between consecutive occurrences of the reference position. The cylinders of the engine are identified by counting the number of pulses occurring between the reference positions.

Abstract translation: 用于发动机的控制装置具有产生表示曲轴的旋转位置的输出信号的曲轴位置传感器。 输出信号具有至少一个不连续部分，每一转动曲轴表示曲轴的基准位置。 计算和控制诸如燃料喷射或点火的定时的发动机操作参数的定时，以便以使用参考位置作为参考的计算出的定时发生。 凸轮轴位置传感器感测凸轮轴的旋转并产生具有在参考位置的连续出现之间出现的脉冲的信号。 通过计算在参考位置之间发生的脉冲数来识别发动机气缸。

公开(公告)号：US5121729A

公开(公告)日：1992-06-16

申请号：US747045

申请日：1991-08-19

Applicant: Atsuko Hashimoto ,  Wataru Fukui ,  Toshio Iwata

Inventor： Atsuko Hashimoto ,  Wataru Fukui ,  Toshio Iwata

IPC: F02D45/00 ,  F02B1/04 ,  F02P5/152 ,  F02P5/153 ,  G01L23/22

CPC classification number: F02P5/1526 ,  G01L23/225 ,  F02B1/04 ,  Y02T10/46

Abstract: For suppression of knocking in an internal combustion engine, an engine vibration level is periodically generated at predetermined time intervals on the basis of an output signal of a knocking sensor which is installed for detecting the engine vibration, the engine vibration level thus generated being compared with a preset sensor failure level. When the vibration level remains lower than the preset sensor failure level successively throughout a period corresponding to a predetermined number of engine cycles, a knocking sensor failure indication signal is generated to thereby allow knocking control to be precautionarily performed for the safety of the engine operation.

Abstract translation: 为了抑制内燃机的撞击，基于安装用于检测发动机振动的爆震传感器的输出信号，以预定的时间间隔周期性地发动发动机振动水平，将由此产生的发动机振动水平与 预设传感器故障等级。 当在对应于预定数量的发动机循环的整个时间段内，当振动水平连续地低于预设的传感器故障水平时，产生爆震传感器故障指示信号，从而允许为了发动机操作的安全性而进行爆震控制。

公开(公告)号：US5070726A

公开(公告)日：1991-12-10

申请号：US591180

申请日：1990-10-01

Applicant: Wataru Fukui ,  Toshio Iwata

Inventor： Wataru Fukui ,  Toshio Iwata

IPC: F02D41/36 ,  F02B77/08 ,  F02D41/34 ,  F02D45/00 ,  F02P5/15 ,  F02P7/073 ,  F02P7/077 ,  G01M15/06

CPC classification number: F02D41/009 ,  F02B77/08 ,  F02P7/073 ,  F02P7/0775 ,  G01M15/06 ,  F02D2041/0092

Abstract: An improved cylinder recognition apparatus for a multi-cylinder internal combustion engine capable of recognizing the operating states of a relatively large number of cylinders by use of two kinds of output signals of a signal generator in a short time and in a reliable manner. A signal generator generates a first signal and a second signal synchronously with the rotation of the engine, the first signal containing a plurality of positional pulses each representative of prescribed reference rotational positions of a corresponding cylinder, the second signal containing a plurality of cylinder recognition pulses each at a location near a corresponding one of the positional pulses. Each cylinder recognition pulse has a specific angular relation with respect to a corresponding positional pulse which is different from that of any other cylinder recognition pulse. A microcomputer detects the level of the second signal at the prescribed reference rotational positions of each cylinder so as to generate an appropriate serial pattern representative of a series of successively detected signal levels. The microcomputer includes a register for sequentially storing the successively detected signal levels, and has a look-up table stored therein which contains a plurality of serial patterns each corresponding to a specific cylinder. The microcomputer recognizes the operating state of each cylinder based on an appropriate number of successively detected last signal levels stored in the register while looking at the look-up table.

Abstract translation: 一种用于多气缸内燃机的改进的气缸识别装置，其能够在短时间内以可靠的方式通过使用信号发生器的两种输出信号来识别相对较大数量的气缸的运行状态。 信号发生器与发动机的旋转同步地产生第一信号和第二信号，第一信号包含多个位置脉冲，每个位置脉冲代表对应汽缸的规定参考旋转位置，第二信号包含多个气缸识别脉冲 每个位于靠近相应的一个位置脉冲的位置。 每个气缸识别脉冲相对于与任何其它气缸识别脉冲不同的相应位置脉冲具有特定的角度关系。 微型计算机检测每个气缸的规定基准旋转位置处的第二信号的电平，以产生表示一系列连续检测的信号电平的适当的串行图形。 该微型计算机包括一个用于顺序地存储连续检测的信号电平的寄存器，并且具有存储在其中的查找表，该查找表包含多个对应于特定气缸的串行模式。 微型计算机在查看查找表的同时，基于存储在寄存器中的适当数量的连续检测到的最后信号电平来识别每个气缸的操作状态。

公开(公告)号：US5054447A

公开(公告)日：1991-10-08

申请号：US603352

申请日：1990-10-26

Applicant: Wataru Fukui ,  Toshio Iwata

Inventor： Wataru Fukui ,  Toshio Iwata

IPC: F02P5/15 ,  F02P3/045

CPC classification number: F02P3/0456

Abstract: An ignition timing control device for a multicylinder engine comprises a position sensor which generates a crank angle reference position signal indicative of a first and a second reference position of respective cylinders, wherein the second reference position of a particular cylinder is retarded by a predetermined offset with respect to other cylinders. Thus, the control device discriminates the particular cylinder from the ratio of the pulse-width to the pulse repetition period. The length of time between the first or second reference position and the target ignition timing is determined in accordance with the average of two or more preceding periods between the first or second reference position. Thus, the error of the ignition timing, which results from a hunting of the rpm of the engine and which is especially conspicuous with respect to the particular cylinder, is suppressed.

Abstract translation: 用于多缸发动机的点火正时控制装置包括位置传感器，其产生指示各个气缸的第一和第二参考位置的曲柄角参考位置信号，其中特定气缸的第二参考位置被延迟预定偏移量， 尊重其他气瓶。 因此，控制装置将特定气缸与脉冲宽度与脉冲重复周期的比率进行区分。 根据第一或第二参考位置之间的两个或多个先前周期的平均值来确定第一或第二参考位置与目标点火时间之间的时间长度。 因此，抑制了由发动机的转速的振荡引起的点火正时的误差，并且相对于特定气缸特别显着。

公开(公告)号：US5036812A

公开(公告)日：1991-08-06

申请号：US519985

申请日：1990-05-01

Applicant: Wataru Fukui ,  Toshio Iwata

Inventor： Wataru Fukui ,  Toshio Iwata

IPC: F02D41/08 ,  F02D41/22 ,  F02D41/26

CPC classification number: F02D41/222 ,  F02D41/08 ,  F02D41/266 ,  F02D2041/227

Abstract: An idle control device for an internal combustion engine capable of controlling the idle speed of the engine in an appropriate manner over a wide operating range thereof and performing idle stabilization control when the engine operation is abnormal. In one embodiment, it is determined whether the engine is in a fast or a normal idling condition, and the number of engine rpm during fast idling is controlled to be at a target value which is higher than another target value for normal idling. In another embodiment, it is determined whether the operation of the engine is normal or abnormal, and the number of engine rpm is controlled to be at a target value when the operation of the engine is abnormal (i.e., the engine is likely to stall) even if the engine is erroneously determined to be out of idling due to sensor failure or the like.

Abstract translation: 一种用于内燃机的怠速控制装置，其能够在其宽的工作范围内以适当的方式控制发动机的怠速，并且当发动机操作异常时执行怠速稳定控制。 在一个实施例中，确定发动机是处于快速还是正常怠速状态，并且将快速怠速期间的发动机转速控制为高于正常怠速的另一个目标值的目标值。 在另一实施例中，确定发动机的运转是正常还是异常，并且当发动机的运转异常（即，发动机很可能失速）时，发动机转速的数量被控制在目标值， 即使发动机由于传感器故障等而被错误地判定为不起作用。

公开(公告)号：US6092015A

公开(公告)日：2000-07-18

申请号：US891035

申请日：1997-07-10

Applicant: Yasuhiro Takahashi ,  Wataru Fukui

Inventor： Yasuhiro Takahashi ,  Wataru Fukui

IPC: G01M15/04 ,  F02D45/00 ,  F02P17/12 ,  G06G7/70 ,  G06F19/00

CPC classification number: F02P17/12

Abstract: A combustion state detecting apparatus for an internal-combustion engine improves the signal-to-noise ratio of an ionic pulse signal to achieve good interfacing characteristic, high detection accuracy, and high control reliability without adding to cost. An electronic control unit (2A) which detects the combustion state in a spark plug according to an ionic pulse signal (Gi) includes: an edge detecting circuit (36) for detecting an end edge of an ionic pulse contained in the ionic pulse signal in a detection zone from a second reference crank angle to a first reference crank angle; a level detecting circuit (37) for detecting the level of the ionic pulse signal at the first reference crank angle; and a circuit (38) for determining the combustion state of the internal-combustion engine according to a detection result (Ni) received from the edge detecting circuit and a detection result (Li) received from the level detecting circuit. Thus, an ionic current detection signal can be pulsed using a simple circuit configuration, and the simple determining logic is used to reduce the load on the arithmetic processor of the electronic control unit.

Abstract translation: 用于内燃机的燃烧状态检测装置提高离子脉冲信号的信噪比，以实现良好的接口特性，高检测精度和高控制可靠性，而不增加成本。 根据离子脉冲信号（Gi）检测火花塞的燃烧状态的电子控制单元（2A）包括：边缘检测电路（36），用于检测离子脉冲信号中包含的离子脉冲的末端边缘 从第二参考曲柄角到第一参考曲柄角的检测区; 用于检测所述离子脉冲信号在所述第一参考曲柄角处的电平的电平检测电路（37） 以及根据从边缘检测电路接收的检测结果（Ni）和从电平检测电路接收的检测结果（Li）来确定内燃机的燃烧状态的电路（38）。 因此，离子电流检测信号可以使用简单的电路配置脉冲，并且简单的确定逻辑用于减少电子控制单元的运算处理器上的负载。

公开(公告)号：US6008639A

公开(公告)日：1999-12-28

申请号：US927264

申请日：1997-09-11

Applicant: Naoki Hiraoka ,  Hiroshi Sakanoue ,  Noriaki Hayashi ,  Wataru Fukui ,  Yutaka Ohashi

Inventor： Naoki Hiraoka ,  Hiroshi Sakanoue ,  Noriaki Hayashi ,  Wataru Fukui ,  Yutaka Ohashi

IPC: G01P3/488 ,  G01D5/14 ,  G01D5/245 ,  G01D11/24 ,  G01R33/06 ,  H05K1/00

CPC classification number: G01D11/245 ,  G01D5/147

Abstract: A magnetic sensor whose electronic components will never become fatally damaged as the result of an external force. In this magnetic sensor, electronic components located near a connector are connected to a base and disposed in such a manner that the longitudinal axis of those electronic components are substantially perpendicular to the longitudinal axis of the base. A crack generating region is formed between the connector electronic component disposed near the connector. The crack generating region yields application of an external force on the base.

Abstract translation: 一种磁传感器，其电子部件将不会因外力而导致致命的损坏。 在该磁性传感器中，位于连接器附近的电子部件连接到基座并且以这样的方式设置，使得这些电子部件的纵向轴线基本上垂直于基部的纵向轴线。 在设置在连接器附近的连接器电子部件之间形成裂纹产生区域。 裂纹产生区产生在基底上施加外力。

公开(公告)号：US5895839A

公开(公告)日：1999-04-20

申请号：US891034

申请日：1997-07-10

Applicant: Yasuhiro Takahashi ,  Wataru Fukui

Inventor： Yasuhiro Takahashi ,  Wataru Fukui

IPC: G01M15/04 ,  F02D45/00 ,  F02P17/12 ,  G01M15/00 ,  F02P17/00 ,  G01L23/00

CPC classification number: F02P17/12

Abstract: An combustion state detecting apparatus for an internal-combustion engine is provided for preventing control errors and detection errors by preventing a biasing circuit from discharging at the start of energization, thereby allowing good sensitivity for detecting ionic current to be maintained. The combustion state detecting apparatus comprises an ionic current detecting circuit which includes a biasing circuit connected to the low voltage end of a secondary winding of an ignition coil and which detects ionic current flowing from the biasing circuit via a spark plug after the combustion of a fuel-air mixture. A current limiting circuit is provided between the low voltage end of the secondary winding and the biasing circuit. An electronic control unit detects the combustion state at the spark plug according to the ionic current. The biasing means circuit applies a bias voltage of the opposite polarity from high voltage for ignition to the spark plug via the low voltage end of the secondary winding; and the current limiting means controls the current flowing from the biasing means to the spark plug via the secondary winding, thus restraining the voltage at the high voltage end of the secondary winding when starting current supply to a primary winding.

Abstract translation: 提供一种用于内燃机的燃烧状态检测装置，用于通过在通电开始时防止偏置电路放电来防止控制误差和检测误差，从而允许保持良好的检测离子电流的灵敏度。 燃烧状态检测装置包括离子电流检测电路，其包括连接到点火线圈的次级绕组的低电压端的偏置电路，并且在燃料燃烧之后检测从偏置电路经由火花塞流动的离子电流 混合气 在次级绕组的低压端和偏置电路之间设置限流电路。 电子控制单元根据离子电流检测火花塞的燃烧状态。 偏置装置电路通过次级绕组的低电压端将与高电压相反极性的偏置电压施加到火花塞以点火; 并且电流限制装置控制通过次级绕组从偏置装置流向火花塞的电流，从而在向初级绕组启动电流供应时，限制次级绕组的高压端的电压。

公开(公告)号：US5877626A

公开(公告)日：1999-03-02

申请号：US739048

申请日：1996-10-28

Applicant: Hideki Umemoto ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi ,  Masahiro Yokotani

Inventor： Hideki Umemoto ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi ,  Masahiro Yokotani

IPC: G01D5/18 ,  G01D5/14 ,  G01D5/16 ,  G01D5/245 ,  G01R33/09 ,  G01V3/08 ,  G01B7/14 ,  F02B53/06 ,  G01B7/30 ,  G01R33/06

CPC classification number: G01D5/147 ,  G01V3/08

Abstract: The invention provides a sensing device capable of outputting a correct signal precisely corresponding to a particular position (angle) such as a protruding or recessed portion of a rotating member made of a magnetic material over the entire operating temperature range regardless of the temperature coefficient of the magnetic field sensing element. The sensing device includes: a magnet for generating a magnetic field; a rotary member of magnetic material for changing the magnetic field generated by the magnet, the rotary member being disposed at a predetermined distance apart from the magnet; a giant magnetoresistance device which changes in resistance in response to the magnetic field whose magnitude is changed by the rotary member of magnetic material; and an AC coupling circuit for performing an AC coupling process on the output of signal of the giant magnetoresistance device.

Abstract translation: 本发明提供一种感测装置，其能够在整个工作温度范围内输出精确对应于由磁性材料制成的旋转部件的突出或凹入部分的特定位置（角度）的正确信号，而与 磁场感应元件。 感测装置包括：用于产生磁场的磁体; 用于改变由磁体产生的磁场的磁性材料的旋转构件，旋转构件设置在与磁体隔开预定距离处; 一种巨磁阻装置，其响应于由磁性材料的旋转构件改变其大小的磁场而改变电阻; 以及用于对巨磁电阻装置的信号的输出进行AC耦合处理的AC耦合电路。