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公开(公告)号：US4538578A
公开(公告)日：1985-09-03
申请号：US572147
申请日：1984-01-19
申请人： Atsushi Suzuki , Masakazu Ninomiya , Katuya Maeda
发明人： Atsushi Suzuki , Masakazu Ninomiya , Katuya Maeda
IPC分类号： F02D41/34 , F02D31/00 , F02D41/14 , F02D41/16 , F02D41/24 , F02M3/07 , F02D9/02 , F02D1/04 , F02M25/06
CPC分类号： F02D31/005 , F02D41/16 , F02D41/2458 , F02M3/075 , F02D2011/102
摘要： A method for controlling the air-fuel ratio in an internal combustion engine which includes the steps of changing the air-fuel ratio to a predetermined extent, detecting changes in the operating conditions of the engine by running the engine on the basis of the changed air-fuel ratio, and correcting the air-fuel ratio in the desirable direction for changing the air-fuel ratio on the basis of the detected desirable direction of change of the air-fuel ratio. The reading of the fuel correction coefficient K.sub.1 is carried out by using maps indicating the relationship between the number of fuel injections, the number of engine rotations, or the fuel injection period, and the fuel correction coefficient K.sub.1, respectively, for each ON and OFF mode of the bypass air control valve for controlling the air flow, by bypassing a throttle valve, and the fuel injection on the basis of the amount of fuel injection corrections read from the fuel correction coefficient K.sub.1.
摘要翻译： 一种用于控制内燃机中的空燃比的方法，其包括将空燃比改变到预定程度的步骤，通过基于改变的空气运行发动机来检测发动机的运行状态的变化 - 燃料比，并且基于所检测到的期望的空燃比变化方向来改变所需方向上的空燃比以改变空燃比。 燃料校正系数K1的读取通过使用分别表示燃料喷射次数，发动机转数或燃料喷射时间与燃料校正系数K1之间的关系的映射来进行，每个ON和OFF 根据从燃料校正系数K1读取的燃料喷射校正量，通过旁路节流阀来控制气流的旁通空气控制阀的模式和燃料喷射。
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公开(公告)号：US4945883A
公开(公告)日：1990-08-07
申请号：US318185
申请日：1989-03-02
CPC分类号： F02D41/187 , F02B1/04 , F02B2075/027
摘要： An internal combustion engine control device is constructed to estimate an engine air intake quantity based on an engine speed when the engine is running in an intake air pulsation generating range to control the engine in accordance with the air intake quantity thus estimated. The estimated air intake quantity is corrected by a correction value which is related to the density of the intake air.
摘要翻译： 内燃机控制装置被构造成当发动机在进气脉动产生范围内行驶时基于发动机转速来估计发动机进气量，以根据如此估计的进气量来控制发动机。 通过与进气密度相关的校正值来校正估计进气量。
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公开(公告)号：US4455981A
公开(公告)日：1984-06-26
申请号：US342427
申请日：1982-01-25
CPC分类号： F02M23/04 , F02D43/00 , F02M7/24 , Y02T10/146
摘要： A system for controlling the air-fuel ratio in which the amount of fuel injected into the engine is controlled in accordance with the flow rate of air passing through an air intake pipe including a throttle valve for introducing the air into the engine and the engine operating conditions. A bypass of the air intake pipe is opened or closed to change the air-fuel ratio of the mixture to slightly richer and leaner sides of a basic air-fuel ratio, and the change of the engine output conditions based on the change of the air-fuel ratio is used to correct the air-fuel ratio in an optimum direction. On the basis of a parameter indicating the engine operating conditions such as the detection value of the intake pipe pressure, a control is made to introduce the air which passed through the bypass to one of the upstream or downstream portion of the throttle valve.
摘要翻译： 一种用于控制空燃比的系统，其中根据通过包括用于将空气引入发动机的引擎和引擎运行的节流阀的进气管的空气的流量来控制喷射到发动机中的燃料量 条件。 进气管的旁路被打开或关闭以将混合物的空燃比改变为基本空燃比的稍富和较稀的侧面，以及基于空气变化的发动机输出条件的变化 - 燃料比用于校正最佳方向上的空燃比。 基于指示诸如进气管压力的检测值的发动机操作条件的参数，进行控制以将通过旁路的空气引入节流阀的上游或下游部分中的一个。
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4.发明授权
公开(公告)号：US4566419A
公开(公告)日：1986-01-28
申请号：US640987
申请日：1984-08-15
CPC分类号： F02D41/1476
摘要： A gas sensor of constant-current type is used to detect a gas component in exhaust gases from an internal combustion engine so as to perform feedback control of air/fuel ratio of an air-fuel mixture supplied to the engine. In order to detect an air/fuel ratio which is richer than a stoichiometric value, a voltage applied to the gas sensor is set to a high value so that the gas sensor does not exhibit a constant-current characteristic. In the case it is desired to detect an air/fuel ratio which is either richer or leaner than the stoichiometric value, the voltage may be changed between the high value and a lower value at which the gas sensor exhibits a constant-current characteristic. Engine parameters are detected to determine whether the engine requires a rich mixture or a lean mixture, and the voltage may be changed as the result of such determination. An output current of the gas sensor is detected to ascertain air/fuel ratio so that air/fuel ratio is controlled to a desired value suitable for engine operating condition.
摘要翻译： 使用恒流型气体传感器来检测来自内燃机的废气中的气体成分，以对供给发动机的空气 - 燃料混合物的空气/燃料比进行反馈控制。 为了检测比化学计量值更浓的空气/燃料比，施加到气体传感器的电压被设定为高值，使得气体传感器不呈现恒定电流特性。 在需要检测比化学计量值更浓或更稀的空燃比的情况下，可以在气体传感器呈现恒定电流特性的高值和较低值之间改变电压。 检测发动机参数以确定发动机是否需要富混合物或稀混合物，并且可以作为这种确定的结果而改变电压。 检测气体传感器的输出电流以确定空气/燃料比，使得空气/燃料比被控制到适合于发动机运行状态的期望值。
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公开(公告)号：US4403584A
公开(公告)日：1983-09-13
申请号：US298613
申请日：1981-09-02
申请人： Atsushi Suzuki , Masakazu Ninomiya
发明人： Atsushi Suzuki , Masakazu Ninomiya
CPC分类号： F02D41/26 , F02D41/1406 , F02P5/151 , Y02T10/46
摘要： A method and apparatus for optimum control for internal combustion engines employ computing means with memory means in which the values indicative of ignition timings and air-fuel ratios of an engine are preliminarily stored in the form of maps in accordance with parameters indicative of the operating conditions of the engine. At least one cycle of ignition timing optimization processing and at least one cycle of air-fuel ratio optimization processing are performed alternately so as to control the engine at the optimum ignition timing and air-fuel ratio for minimum fuel consumption.
摘要翻译： 用于内燃机的最佳控制的方法和装置采用具有存储装置的计算装置，其中指示发动机的点火正时和空燃比的值根据指示操作条件的参数以地图的形式被预先存储 的发动机。 交替地执行点火正时优化处理和空燃比优化处理的至少一个循环的至少一个循环，以便以最小的燃料消耗控制发动机的最佳点火正时和空燃比。
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公开(公告)号：US4448171A
公开(公告)日：1984-05-15
申请号：US386096
申请日：1982-06-07
申请人： Masakazu Ninomiya , Atsushi Suzuki
发明人： Masakazu Ninomiya , Atsushi Suzuki
CPC分类号： F02D41/1408 , F02P5/1455 , Y02T10/46
摘要： In an optimum control for an internal combustion engine, a engine is operated by dithering the value of a selected one of engine operating control variables from a value of the selected control variable which is obtained by calculation in accordance with detected values of operating parameters of the engine, and a direction of improving either one of a fuel consumption rate and an output of the engine is decided on the basis of a detected change of an engine operating condition, thereby correcting the value of the selected control variable. In the optimum control, the time period for detecting a change of an engine speed within the time period for effecting the dithering is increased or decreased as the engine speed increases or decreases, respectively. Thus, this optimum control makes it possible to perform accurate control with a reduced dither quantity and a shorter dither period than previously.
摘要翻译： 在内燃机的最佳控制中，通过根据所检测到的发动机运转控制变量的运行参数的检测值，通过计算获得的所选择的控制变量的值来抖动所选择的发动机运转控制变量的值， 基于检测到的发动机工作状态的变化来决定提高燃料消耗率和发动机的输出中的任一个的方向，从而校正所选择的控制变量的值。 在最佳控制中，随着发动机转速的增加或减小，用于检测用于实现抖动的时间段内的发动机转速变化的时间段分别增加或减小。 因此，这种最佳控制使得可以以比以前更低的抖动量和更短的抖动周期执行精确的控制。
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7.发明授权
公开(公告)号：US4428342A
公开(公告)日：1984-01-31
申请号：US314022
申请日：1981-10-22
CPC分类号： F02P5/1455 , Y02T10/46
摘要： Spark ignition timing of an internal combustion engine is oscillated on each side of a variable reference setting by varying it at stepwisely variable amounts during positive and negative swings and the resultant engine speed is detected in at least three successive phases. The detected engine speed values are compared one against each other to determine whether they satisfy one of two specified conditions. The variable reference is adjusted in a direction toward an optimum position depending on which one of the conditions is satisfied.
摘要翻译： 内燃机的火花点火时间在可变参考设定的每一侧振荡，通过在正和负摆动期间以逐步可变的量改变，并且在至少三个连续相中检测到所得到的发动机速度。 将检测到的发动机速度值彼此进行比较以确定它们是否满足两个指定条件之一。 根据满足条件中的哪一个，可变参考在朝向最佳位置的方向上被调整。
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公开(公告)号：US4550701A
公开(公告)日：1985-11-05
申请号：US597098
申请日：1984-04-05
IPC分类号： B60K31/00 , B60W30/00 , F02D29/02 , F02D41/04 , F02D41/14 , F02D41/24 , F02D45/00 , F02D37/02
CPC分类号： F02D41/04 , F02D41/1406 , F02D41/1475 , F02D41/2454 , F02D41/2441 , F02D41/2458
摘要： A method for controlling the air-fuel ratio in an internal combustion engine in which the correction of the air-fuel ratio is carried out on the basis of the determination as to whether the base air-fuel ratio is the value in the richer or the leaner side of the air-fuel ratio corresponding to the best specific fuel consumption. A different number of operation points for detecting the signals of the parameters of the engine running state are selected for the automatic constant speed control state and for the non-automatic speed control state.
摘要翻译： 基于对基本空燃比是否为更丰富或更丰富的值的判定，进行空燃比的校正的内燃机的空燃比的控制方法 空燃比较稀的一面对应于最佳比燃料消耗。 为自动恒速控制状态和非自动速度控制状态选择不同数量的用于检测发动机运行状态参数的信号的操作点。
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9.发明授权Method and apparatus for controlling air-fuel ratio in an internal combustion engine 失效用于控制内燃机中空燃比的方法和装置
公开(公告)号：US4503824A
公开(公告)日：1985-03-12
申请号：US576773
申请日：1984-02-03
CPC分类号： F02D41/1483 , F02D41/1474 , F02D41/263
摘要： A method for controlling the air-fuel ratio in an internal combustion engine in which the correction of a base air-fuel ratio is carried out on the basis of the determination as to whether the base air-fuel ratio is on the richer or the leaner side of the air-fuel ratio corresponding to optimum specific fuel consumption, the determination being carried out by comparing four driving state indicating signals at different air-fuel ratios with each other, the correction being directed to bringing the base air-fuel ratio closer to the air-fuel ratio corresponding to the optimum specific fuel consumption.
摘要翻译： 基于对基本空燃比是更浓还是更稀的判定来进行基本空燃比的校正的内燃机的空燃比的控制方法 对应于最佳特定燃料消耗的空燃比的一侧，通过比较不同空燃比的四个驱动状态指示信号彼此进行判定，该校正旨在使基本空燃比接近 所述空燃比对应于最佳比燃料消耗。
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公开(公告)号：US4479476A
公开(公告)日：1984-10-30
申请号：US341171
申请日：1982-01-20
申请人： Atsushi Suzuki , Masakazu Ninomiya
发明人： Atsushi Suzuki , Masakazu Ninomiya
CPC分类号： F02D41/1408
摘要： In a method and an apparatus for optimum control of an internal combustion engine, an air-fuel ratio is dithered by a dither amount from a basic air-fuel ratio and the engine is operated with the dithered air-fuel ratio. A resultant change of the output state of the engine is detected, and the direction of improving fuel consumption is decided by the change of the output state of the engine so that the basic air-fuel ratio is changed in that direction. Either the dither period during which the engine is operated with different selected air-fuel ratios or the dither amount is determined with elevated precision by a signal detected in association with the output state of the engine.
摘要翻译： 在用于内燃机的最佳控制的方法和装置中，空燃比由基本空燃比的抖动量抖动，发动机以抖动空燃比运转。 检测到发动机的输出状态的结果变化，并且通过发动机的输出状态的变化来决定提高燃料消耗的方向，使得基本空燃比在该方向上变化。 通过与发动机的输出状态相关联地检测到的信号，以提高的精度确定发动机以不同的所选空燃比操作的抖动时段或抖动量。
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