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公开(公告)号：US4321903A
公开(公告)日：1982-03-30
申请号：US127545
申请日：1980-03-06
申请人： Toshio Kondo , Akio Kobayashi , Tomomi Eino , Naofumi Fukue
发明人： Toshio Kondo , Akio Kobayashi , Tomomi Eino , Naofumi Fukue
CPC分类号： F02D41/263
摘要： In the method of feedback controlling the air-fuel ratio of an internal combustion engine, the feedback control is stopped for a predetermined period of time at a specified time or condition of the engine, and the air-fuel ratio is controlled in accordance with a control signal having a value corresponding to the average value of the integrated compensation signals. In addition, a factor affecting the center value of the controlled air-fuel ratio is adjusted in accordance with the output signal of a comparator circuit generated during the time that the feedback control is being stopped.
摘要翻译： 在反馈控制内燃机的空燃比的方法中，反馈控制在发动机的规定时间或状态下停止预定时间，并且根据空燃比控制空燃比 控制信号具有对应于积分补偿信号的平均值的值。 此外，根据反馈控制停止时产生的比较电路的输出信号，调整影响受控空燃比的中心值的因素。
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公开(公告)号：US4457282A
公开(公告)日：1984-07-03
申请号：US390963
申请日：1982-06-22
申请人： Toshihiko Muramatsu , Akio Kobayashi , Tomomi Eino , Toshio Kondo
发明人： Toshihiko Muramatsu , Akio Kobayashi , Tomomi Eino , Toshio Kondo
CPC分类号： F02D41/182 , F02D41/263
摘要： An electronic control system for fuel injection into an engine controls an air-fuel ratio at a desired air-fuel ratio during a high load operation of the engine. The electronic control system performs the operations of detecting operating parameters of the engine, computing by a computing unit a time width in accordance with the detected operating parameters, selecting a maximum time width value of the injection pulse from a preliminarily stored table of maximum time width values thereof in accordance with the value of at least one of the detected operating parameters, comparing the computed time width value with the selected maximum time width value, limiting the computed time width value in accordance with the selected maximum time width value, and applying the injection pulse to the fuel injectors, thereby controlling the air-fuel ratio under the high load conditions at a desired air-fuel ratio and also preventing the malfunction of continuous fuel supply from occurring in the fuel injectors.
摘要翻译： 用于燃料喷射到发动机中的电子控制系统在发动机的高负载运行期间控制所需空燃比的空燃比。 电子控制系统执行检测发动机的运行参数的操作，由计算单元根据检测到的运行参数计算时间宽度，从预先存储的最大时间宽度表选择喷射脉冲的最大时间宽度值 根据所检测到的操作参数中的至少一个的值，将所计算的时间宽度值与所选择的最大时间宽度值进行比较，根据所选择的最大时间宽度值限制计算出的时间宽度值，并将 喷射脉冲，从而在高负载条件下以期望的空燃比控制空燃比，并且还防止在燃料喷射器中发生连续燃料供应的故障。
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3.发明授权Method and apparatus for controlling air/fuel ratio in internal combustion engines 失效用于控制内燃机空气/燃料比的方法和装置
公开(公告)号：US4365299A
公开(公告)日：1982-12-21
申请号：US181342
申请日：1980-08-26
申请人： Toshio Kondo , Akio Kobayashi , Tomomi Eino , Masahiko Tajima
发明人： Toshio Kondo , Akio Kobayashi , Tomomi Eino , Masahiko Tajima
CPC分类号： F02D41/182 , F02D41/263 , F02B2075/027
摘要： The amount of fuel supplied to an internal combustion engine is determined by controlling the opening interval of each fuel injection valve by correcting a standard interval obtained from the amount of intake air and engine speed by first to third correction factors. The first correction factor is dependent on coolant and intake air temperatures, while the second correction factor is dependent on a gas sensor output indicative of the air/fuel ratio of the mixture supplied to the engine. A plurality of third correction factors is provided for different amounts of intake air. Some of the third correction factors corresponding to intake air amounts at which the engine has been operated, are corrected in accordance with the value of the second correction factor. The state of correction is detected and when third correction factor has been corrected in the same direction by a relatively large amount, all of the third correction factors, which have been stored in a memory, are uniformly modified to renew the stored data.
摘要翻译： 通过利用从第一到第三校正因子校正从进气量和发动机转速得到的标准间隔来控制每个燃料喷射阀的打开间隔来确定供给内燃机的燃料量。 第一校正因子取决于冷却剂和进气温度，而第二校正因子取决于指示供应给发动机的混合物的空气/燃料比的气体传感器输出。 为不同量的进气提供多个第三校正因子。 根据第二校正因子的值来校正与发动机运转的进气量对应的一些第三校正因子。 检测到校正状态，并且当在相同方向上校正了相对较大量的第三校正因子时，已经存储在存储器中的所有第三校正因子被均匀地修改以更新存储的数据。
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公开(公告)号：US4492202A
公开(公告)日：1985-01-08
申请号：US460856
申请日：1983-01-25
CPC分类号： F02D41/2412 , F02D31/007
摘要： A fuel injection control for an internal combustion engine having electromagnetic fuel injectors determines a basic fuel injection time width of a fuel injection pulse signal applied to the electromagnetic fuel injectors in accordance with detected conditions of engine operation parameters, stores maximum fuel injection time width values predetermined in correspondence to values of a predetermined one of the engine operation parameters, reads one of the predetermined maximum fuel injection time width values corresponding to the values of the predetermined engine operation parameter and corrects the same in accordance with the values of the other engine operation parameters, and corrects the basic fuel injection time width in accordance with the corrected predetermined maximum fuel injection time width value, thereby controlling the air-fuel ratio at a desired air-fuel ratio under every operating condition of the engine, while simultaneously preventing a misoperation of continuous fuel supply from occuring in the electromagnetic fuel injectors as before.
摘要翻译： 具有电磁燃料喷射器的内燃机的燃料喷射控制根据检测到的发动机运转参数的条件来决定施加到电磁燃料喷射器的燃料喷射脉冲信号的基本燃料喷射时间宽度，存储预定的最大燃料喷射时间宽度值 对应于预定的发动机运转参数的值，读取与预定的发动机运转参数的值相对应的预定最大燃料喷射时间宽度值之一，并根据其它发动机运转参数的值进行修正 并且根据校正的预定最大燃料喷射时间宽度值来校正基本燃料喷射时间宽度，从而在发动机的每个操作条件下将空燃比控制在期望的空燃比，同时防止误动作 连续燃油 如以前那样从电磁燃料喷射器中产生。
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公开(公告)号：US4466410A
公开(公告)日：1984-08-21
申请号：US398275
申请日：1982-07-14
CPC分类号： F02D41/263 , F02D41/2441 , F02D41/2454
摘要： In an air-fuel ratio control system for an internal combustion engine, the basic fuel injection amount computed from engine parameters such as engine speed and intake air flow is corrected by using map having air-fuel ratio compensation data stored battery back-up in accordance with the engine parameters. The compensation data is read out of the map in accordance with the parameters at the time of detection of the stable combustion state of the engine. When an output of an oxygen sensor is on lean side, a predetermined amount is added to the data thus read, while when the output of the oxygen sensor is on rich side, a predetermined amount is subtracted from the data thus read, thereby renewing the stored value.
摘要翻译： 在用于内燃机的空燃比控制系统中，根据发动机速度和进气量的发动机参数计算的基本燃料喷射量通过使用具有空燃比补偿数据的存储电池备用的映射来校正 与引擎参数。 根据检测到发动机的稳定燃烧状态时的参数，从地图读出补偿数据。 当氧传感器的输出处于倾斜侧时，将预定量添加到所读取的数据中，而当氧传感器的输出为浓侧时，从所读取的数据中减去预定量，从而更新 存储值。
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6.发明授权Closed loop mixture control using learning data resettable for fuel evaporation compensation 失效闭环混合控制采用学习数据可复位为燃料蒸发补偿
公开(公告)号：US4441473A
公开(公告)日：1984-04-10
申请号：US243514
申请日：1981-03-13
CPC分类号： F02D41/2493 , F02D41/2454 , F02D41/2441
摘要： A closed loop mixture control system for internal combustion engines is responsive to a signal derived from an exhaust gas sensor. The sensor signal is time-integrated in a direction depending on the level of the gas sensor output to derive a first mixture corrective setting of the control system. Second corrective settings or learning data are established for the control system in correspondence with the amount of air supplied to the engine. Each of the latter settings is varied as a function of time in a direction depending on the value of the time-varying first corrective setting relative to a reference so that the second settings are automatically updated to meet varying engine performance such as aging. One of the second corrective settings is selected in response to the detected quantity of the supplied air and multiplied by the first corrective setting to correct the basic mixture control setting of the system toward an optimum value. All of the second corrective settings are reset to appropriate values, for example, "1" at the instant the engine is started if an average value of the second settings is greater than a predetermined value to compensate for different fuel vaporizations.
摘要翻译： 用于内燃机的闭环混合控制系统响应于从废气传感器得到的信号。 传感器信号根据气体传感器输出的电平在一个方向上进行时间积分，以得出控制系统的第一个混合校正设置。 与控制系统建立对应于发动机供给的空气量的第二校正设置或学习数据。 后一种设置中的每一种根据时间变化的第一校正设置的值相对于参考值的方向随时间的变化而变化，使得第二设置被自动更新以满足诸如老化的变化的发动机性能。 响应于所检测到的供给空气量而选择第二校正设置中的一个，并乘以第一校正设置，以将系统的基本混合控制设置校正为最佳值。 如果第二设置的平均值大于预定值以补偿不同的燃料蒸发，则所有第二校正设置被重置为适当的值，例如在启动发动机的时刻为“1”。
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公开(公告)号：US4649745A
公开(公告)日：1987-03-17
申请号：US671615
申请日：1984-11-15
CPC分类号： G01F1/6986
摘要： An apparatus for measuring a flow of intake air to an engine includes a bridge circuit including a heat resistor placed in an intake air path of the engine, a resistor for sensing the temperature of the intake air, and a plurality of balance resistors. A heating current is supplied to this bridge circuit through a transistor controlled by a periodical current-passage control signal generated by a microcomputer. A signal Vh, representing a temperature change of the heat resistor heated by the heating current, is detected by the microcomputer. A first correction value is computed by using a difference between the detected value from the microcomputer and a signal Vho, representing temperature of the heat resistor when the bridge circuit is balanced at normal temperature. A time width correction value .DELTA.Do1 is computed from a table on the basis of the first correction value. The correction signal .DELTA.Do1 is used for correcting the current passage time. The current passage time width as corrected is used for computing a flow of the intake air.
摘要翻译： 用于测量到发动机的进气的流量的装置包括桥接电路，其包括放置在发动机的进气通道中的热电阻器，用于感测进气的温度的电阻器和多个平衡电阻器。 通过由微型计算机产生的周期性电流通过控制信号控制的晶体管，向该桥式电路供给加热电流。 由微型计算机检测表示由加热电流加热的热电阻的温度变化的信号Vh。 通过使用来自微型计算机的检测值和信号Vho之间的差来计算第一校正值，该信号Vho表示在常规温度下桥接电路平衡时的热电阻器的温度。 基于第一校正值从表中计算时间宽度校正值DELTA Do1。 校正信号DELTA Do1用于校正当前通过时间。 校正的当前通过时间宽度用于计算进气的流量。
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公开(公告)号：US4574761A
公开(公告)日：1986-03-11
申请号：US680046
申请日：1984-12-10
CPC分类号： F02D41/345 , Y02T10/44
摘要： In an electronic fuel injection control system for an internal combustion engine, a first integration circuit is responsive to an angular signal with a time period in inverse proportion to the rotational speed of the engine for integrating the first half of the time period of the angular signal and for producing a first integration signal indicative of a resultant value of the integration, a hold circuit is arranged to hold the value of the first integration signal upon lapse of the first half of the time period and to produce a hold signal of the held value and maintain it for the second half of the time period and the first half of the time period of the following angular signal, a second integration circuit is responsive to the angular signal for integrating the value of an air quantity signal indicative of the quantity of air drawn into the engine at each start of the first and second halves of the time period and for producing a second integration signal indicative of a resultant value of the integration of the value of the air quantity signal, and a signal generator is arranged to determine a fuel injection time based on the time required for arrival of the valve of the second integration signal to the level of the hold signal after each start of the first and second halves of the time period.
摘要翻译： 在用于内燃机的电子燃料喷射控制系统中，第一积分电路响应角度信号，其中时间周期与发动机的转速成反比，用于积分角度信号的时间段的前半部分 并且为了产生指示积分的结果值的第一积分信号，保持电路被布置成在经过该时间段的前半部分时保持第一积分信号的值，并产生保持值的保持信号 并且将其保持在下一个时间段的后半部分和后续角度信号的时间段的前半部分中，第二积分电路响应角度信号来积分指示空气量的空气量信号的值 在时间段的第一和第二半部的每个开始处被吸入引擎，并且用于产生指示结果的第二积分信号 空气量信号的值的积分值和信号发生器被布置成基于第二积分信号的阀到达所需的时间到每次启动后的保持信号的电平来确定燃料喷射时间 的时间段的第一和第二半。
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公开(公告)号：US4475501A
公开(公告)日：1984-10-09
申请号：US348178
申请日：1982-02-12
申请人： Katsushi Kato , Shigenori Isomura , Akio Kobayashi , Toshio Kondo
发明人： Katsushi Kato , Shigenori Isomura , Akio Kobayashi , Toshio Kondo
CPC分类号： F02D41/126 , F02B2075/027
摘要： An electronic control type fuel injection system in which, at the time of engine deceleration the fuel injection is stopped, and when resuming to a normal fuel injection from the fuel injection stopped condition, if the reducing rate of the engine speed is smaller than a preset value, a smaller amount of fuel than the amount of fuel injection during normal operation as if fuel injection had not been stopped is first injected and subsequently the amount of fuel to be injected is gradually increased, while when the reducing rate of the engine speed is larger than the preset value, a larger amount of fuel than the fuel injection amount during normal operation is injected.
摘要翻译： 一种电子控制式燃料喷射系统，其中在发动机减速时燃料喷射停止，并且当从燃料喷射停止状态恢复到正常燃料喷射时，如果发动机转速的降低率小于预设值 值，与正常运转时的燃料喷射量相比，燃料喷射未停止时的燃料量少，首先进行喷射，随后喷射的燃料量逐渐增加，而当发动机转速的降低速度为 大于预设值时，喷射比正常操作期间的燃料喷射量更大的燃料量。
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10.发明授权
公开(公告)号：US4461261A
公开(公告)日：1984-07-24
申请号：US377542
申请日：1982-05-12
申请人： Shigenori Isomura , Toshio Kondo , Yasumasa Kaji , Akio Kobayashi
发明人： Shigenori Isomura , Toshio Kondo , Yasumasa Kaji , Akio Kobayashi
CPC分类号： F02D41/26 , F02D41/2454 , F02D41/2483 , F02B2075/027
摘要： In a closed loop control system for air/fuel ratio control of an internal combustion engine, an integration correction factor is derived from the output signal of a gas sensor indicative of the concentration of an exhaust gas component, and an engine condition correction factor is selected from a memory in which a plurality of engine condition correction factors are prestored in the form of a table. The engine condition correction factor is renewed in accordance with the variation in the value of the integration correction factor so as to perform learning control. In order to prevent each of the engine condition correction factors from assuming an undesirable value which are far deviated from its standard, a constant or variable limit value is set. The limit value may be set by calculating some typical engine condition correction factors. The correction factors will be used to modify a basic quantity of fuel to be injected into each cylinder of the engine for feedback controlling the air/fuel ratio of the air/fuel mixture.
摘要翻译： 在用于内燃机的空气/燃料比控制的闭环控制系统中，从表示排气组分浓度的气体传感器的输出信号导出积分校正因子，并且选择发动机状态校正系数 从其中以表的形式预先存储多个发动机状态校正系数的存储器。 根据积分校正因子的值的变化来更新发动机状态校正系数，以进行学习控制。 为了防止每个发动机状态校正因子假设远离其标准的不期望值，设定常数或可变极限值。 极限值可以通过计算一些典型的发动机状态校正因子来设定。 校正因子将用于改变要喷射到发动机的每个气缸中的基本燃料量，以反馈控制空气/燃料混合物的空气/燃料比。
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