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公开(公告)号：US4271469A
公开(公告)日：1981-06-02
申请号：US24772
申请日：1979-03-28
申请人： Hisasi Kawai , Toshimitsu Ito , Masakatsu Sanada , Kazuo Iwase
发明人： Hisasi Kawai , Toshimitsu Ito , Masakatsu Sanada , Kazuo Iwase
CPC分类号： G01L23/225
摘要： A knocking detection method for internal combustion engines in which vibrations of the engine are detected by a vibration sensor and a peak value of the vibrations during a predetermined interval near the top dead center in each revolution of the engine is sampled. The peak value for each revolution is stored for a predetermined number of revolutions of the engine and an average value of the peak values is obtained. Then the ratio of each peak value to the average value is calculated, and the number of ratios whose magnitude exceeds a predetermined magnitude is expressed in terms of a rate or a percentage with respect to the total number of ratios, i.e., the predetermined number of revolutions of the engine. The presence or absence of the knocking is determined whether or not the rate or percentage is above a reference rate or percentage.
摘要翻译： 对通过振动传感器检测到发动机的振动的内燃机的爆震检测方法和在发动机的每转中的上止点附近的预定间隔期间的振动的峰值进行采样。 每转的峰值存储发动机的预定转数，并获得峰值的平均值。 然后，计算每个峰值与平均值的比值，并且其幅度超过预定幅度的比率数目以关于比率总数的速率或百分比表示，即预定数量 发动机的转速。 确定爆震的存在或不存在是否速率或百分比是否高于参考速率或百分比。
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公开(公告)号：US4356551A
公开(公告)日：1982-10-26
申请号：US184188
申请日：1980-09-04
申请人： Kazuo Iwase , Hisasi Kawai , Kunimasa Yoshimura , Toshimitsu Ito , Yoshiyasu Ito
发明人： Kazuo Iwase , Hisasi Kawai , Kunimasa Yoshimura , Toshimitsu Ito , Yoshiyasu Ito
CPC分类号： G01L23/225 , F02P5/1522 , Y02T10/46
摘要： A method for detecting knock for an internal combustion engine having a plurality of cylinders in which a vibration sensor is attached to each cylinder and a peak value of vibration detected by the sensor is sampled over a predetermined interval near the top dead center. The sampled value is converted from analog to digital and stored for a predetermined number of sampling times to obtain the average value for each cylinder. Then the frequency of occurrences in which the ratio between the sampled peak value and the average value exceeds a reference value is obtained, and the knock is determined when the frequency of occurrences in any one cylinder exceeds a predetermined value or when the average frequency of occurrences of the all cylinders exceed another predetermined value.
摘要翻译： 一种用于检测具有多个气缸的内燃机的爆震方法，其中在每个气缸上安装有振动传感器，并且在靠近上止点的预定间隔内对由传感器检测的振动的峰值进行采样。 采样值从模拟转换为数字，并存储预定数量的采样时间，以获得每个气缸的平均值。 然后，获得采样峰值与平均值之间的比值超过参考值的出现频率，并且当任何一个气缸中出现的频率超过预定值时或者当出现的平均频率 的全部气缸超过另一个预定值。
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公开(公告)号：US4207277A
公开(公告)日：1980-06-10
申请号：US862840
申请日：1977-12-21
申请人： Masakatsu Sanada , Toshimitsu Ito
发明人： Masakatsu Sanada , Toshimitsu Ito
CPC分类号： F02M5/14 , F02M15/045 , F02M5/10 , Y10S261/74
摘要： A float chamber means for a carburetor having a heating element provided in its float chamber for selectively heating liquid fuel contained in the float chamber so that highly volatile components included in the fuel are vaporized in the float chamber and released from the liquid fuel before it enters into fuel passages provided in the carburetor thereby avoiding percolation due to abnormal vaporization of fuel in those fuel passages.
摘要翻译： 一种用于化油器的浮子室装置，其具有设置在其浮动室中的加热元件，用于选择性地加热容纳在浮动室中的液体燃料，使得包含在燃料中的高挥发性组分在浮动室中蒸发并在液体燃料进入之前从液体燃料中释放 进入设置在化油器中的燃料通道，从而避免由于那些燃料通道中的燃料的异常汽化引起的渗透。
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公开(公告)号：US4271799A
公开(公告)日：1981-06-09
申请号：US34736
申请日：1979-04-30
摘要： A knocking control device having a knocking detecting circuit for detecting, as an electrical signal, an amount of variation corresponding to an internal pressure variation within a cylinder of an engine due to an engine knocking; an averaging circuit for converting the electrical signal from the knocking detecting circuit to a signal corresponding to a knocking energy; a crank angle detecting circuit for detecting a rotation phase of the engine; a comparison circuit for comparing the output signal corresponding to the knocking energy of the averaging circuit with a reference value defining a knocking allowable level to obtain a control signal for maintaining an engine knocking strength in a predetermined range; and an ignition control circuit connected to an ignition circuit, for controlling the ignition timing of the ignition circuit by the control signal from the comparison circuit. The present invention can detect the knocking strength with high accuracy as an electrical signal based on the cylinder internal pressure variation due to knocking and can carry out a knocking strength control suitable for characteristics of an engine by using the electrical signal. Also the present invention can remarkably improve an engine combustion efficiency and fuel consumption percentage by accepting a knocking to some extent.
摘要翻译： 一种具有爆震检测电路的爆震控制装置，用于作为电信号检测与由于发动机爆震引起的发动机气缸内的内部压力变化相对应的变化量; 平均电路，用于将来自爆震检测电路的电信号转换成与爆震能相对应的信号; 用于检测发动机的旋转相位的曲柄角检测电路; 比较电路，用于将对应于平均电路的爆震能量的输出信号与限定爆震允许电平的参考值进行比较，以获得用于将发动机爆震强度保持在预定范围内的控制信号; 以及点火控制电路，其连接到点火电路，用于通过来自比较电路的控制信号来控制点火电路的点火正时。 本发明可以基于由于爆震引起的气缸内部压力变化而以高精度检测爆震强度，并且可以通过使用电信号来执行适于发动机特性的爆震强度控制。 此外，本发明通过在一定程度上接受敲击可显着提高发动机燃烧效率和燃料消耗百分比。
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公开(公告)号：US4175527A
公开(公告)日：1979-11-27
申请号：US809759
申请日：1977-06-24
CPC分类号： F02D33/003 , F02M37/0052 , F02M37/0094 , F02M37/20 , F02B1/04 , F02D2200/0606 , F02M37/0023 , F02M37/0082
摘要： A fuel supply system for engines, including a fuel tank divided into first and second chambers, a fuel supply passage means including a fuel pump and supplying fuel from the fuel tank to a carburetor of the engine and a fuel return passage means for returning the excess fuel supplied to the carburetor to the second chamber of the fuel tank. An upper region of the second chamber is bled, while the first chamber is supplied with new fuel, the fuel supply passage means including a change-over valve which usually connects the fuel supply passage to the first chamber, while it connects the fuel supply passage to the second chamber when the fuel temperature has risen beyond a predetermined value.
摘要翻译： 一种用于发动机的燃料供应系统，包括分为第一和第二室的燃料箱，包括燃料泵并将燃料从燃料箱供给到发动机的化油器的燃料供给通道装置和用于使燃料回流通道装置 燃料供应给化油器到燃料箱的第二室。 第二室的上部区域被排出，而第一室被供给新的燃料，燃料供给通道装置包括转换阀，该换向阀通常将燃料供给通道连接到第一室，同时连接燃料供给通道 当燃料温度已经超过预定值时，到第二室。
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公开(公告)号：US4195608A
公开(公告)日：1980-04-01
申请号：US807525
申请日：1977-06-17
摘要： A fuel supply system for engines having a carburetor which has a float chamber and a vapor bleed passage connected to the float chamber, wherein a part of a fuel supply passage means for supplying fuel from a fuel tank to the carburetor traverses through the float chamber so that the fuel flowing through the fuel supply passage means absorbs heat from the fuel contained in the float chamber. The fuel entering into the float chamber releases volatile light components as vapor towards the vapor bleed passage while the liquid fuel contained in the float chamber becomes a more stable liquid due to the release of volatile components and the cooling effected by heat exchange with the fuel flowing through the fuel supply passage means.
摘要翻译： 一种用于具有化油器的发动机的燃料供应系统，其具有连接到所述浮子室的浮子室和蒸汽排放通道，其中用于从燃料箱向所述化油器供应燃料的燃料供给通道装置的一部分穿过所述浮子室， 流经燃料供给通路的燃料从吸收浮子室内的燃料吸收热量。 进入浮法室的燃料将挥发性的光成分作为蒸气向蒸气排放通道释放，同时由于挥发性成分的释放，包含在浮动室中的液体燃料变成更稳定的液体，并且通过与燃料流的热交换而进行的冷却 通过燃料供给通道装置。
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7.发明授权
公开(公告)号：US4651700A
公开(公告)日：1987-03-24
申请号：US749088
申请日：1985-06-26
CPC分类号： F02D41/1486
摘要： In an internal combustion engine wherein feedback control of the air-fuel ratio is carried out in accordance with the concentration of a specific composition in the exhaust gas, so that the air-fuel ratio is close to an aimed air-fuel ratio, the atmospheric pressure is detected, and the aimed air-fuel ratio is varied in accordance with the detected atmospheric pressure.
摘要翻译： 在内燃机中，根据排气中的特定组成的浓度进行空燃比的反馈控制，使得空燃比接近目标空燃比，大气 检测到压力，并且目标空燃比根据检测到的大气压力而变化。
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公开(公告)号：US4457283A
公开(公告)日：1984-07-03
申请号：US452095
申请日：1982-12-22
申请人： Nobuyuki Kobayashi , Toshimitsu Ito
发明人： Nobuyuki Kobayashi , Toshimitsu Ito
CPC分类号： F02D41/182 , F02D41/105
摘要： In an electronically controlled engine supplying fuel from a fuel injector near an intake port to an intake system, asynchronous acceleration fuel injection is carried out in relation to the secondary differential d.sup.2 X/dt.sup.2 of intake pipe pressure or intake air flow rate with respect to time t. Since the d.sup.2 X/dt.sup.2 increases rapidly and accurately after the start of acceleration of the engine, the asynchronous acceleration fuel injection can be carried out rapidly and accurately.
摘要翻译： 在从进气口附近的燃料喷射器向进气系统供给燃料的电子控制发动机中，相对于进气管压力或进气流量相对于时间t的二次差分d2X / dt2，进行异步加速燃料喷射 。 由于在发动机加速开始之后d2X / dt2迅速而准确地增加，所以异步加速燃料喷射可以快速准确地进行。
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9.发明授权Method and device for control of internal combustion engine at end of fuel cut off 失效在燃油终止时控制内燃机的方法和装置
公开(公告)号：US4696278A
公开(公告)日：1987-09-29
申请号：US830879
申请日：1986-02-19
申请人： Toshimitsu Ito , Chigaku Murata
发明人： Toshimitsu Ito , Chigaku Murata
CPC分类号： F02D41/126 , F02B1/04
摘要： In the fuel control for an engine for which cut off of fuel supply is performed while the engine is in the decelerating operation condition, at the time of fuel cut off termination, an injection of fuel through a fuel injector into an intake system of the engine is supplied at substantially the same time as stopping the fuel cut off, wherein the amount of such fuel injection is controlled according to the temperature of the air being sucked into the engine intake system so as to be decreased as the air temperature increases.
摘要翻译： 在发动机处于减速运行状态时进行燃料供给切断的发动机的燃料控制中，在燃料切断终止时，通过燃料喷射器将燃料喷射到发动机的进气系统中 在停止燃料切断的基本同时被供给，其中根据被吸入发动机进气系统的空气的温度来控制这种燃料喷射的量，以随着空气温度的升高而减小。
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公开(公告)号：US4556033A
公开(公告)日：1985-12-03
申请号：US583267
申请日：1984-02-24
申请人： Toshimitsu Ito , Nobuyuki Kobayashi
发明人： Toshimitsu Ito , Nobuyuki Kobayashi
CPC分类号： F02D41/1479
摘要： A method and apparatus for performing air/fuel ratio feedback control for an internal combustion engine by comparing the results of the two comparisons; (a) comparing a determined (i.e., decision) value with a measured value detected by an oxygen sensor, and (b) comparing the determined value with a reference value, so as to determine if either is relatively large or small. Further included is an arrangement for determining whether the determined value coincides with the measured value as well as whether it coincides with the reference value, and then increasing or decreasing the determined value in accordance with the result of the determination (comparison), thereby correcting an abnormal condition of the determined (i.e., decision) value whenever the determined value is displaced from a normal condition due to injected random noise.
摘要翻译： 一种用于通过比较两个比较的结果来对内燃机进行空燃比反馈控制的方法和装置; （a）将确定的（即决定）值与由氧传感器检测的测量值进行比较，和（b）将所确定的值与参考值进行比较，以便确定是否相对较大或较小。 进一步包括用于确定所确定的值是否与测量值一致以及它是否与参考值一致的装置，然后根据确定（比较）的结果来增加或减少所确定的值，由此校正 每当确定的值由于注入的随机噪声而从正常状态偏移时，确定的（即，决定）值的异常条件。
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