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11.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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12.发明授权
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：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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14.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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公开(公告)号：US4448162A
公开(公告)日：1984-05-15
申请号：US386097
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 , F02D41/263
摘要： In the optimum control for an internal combustion engine wherein the engine is operated by dithering a 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 calculated value of the selected control variable, during the time period of each dithered engine operation, an engine speed is detected two or more times and used for deciding the direction of a change of the engine speed, thereby providing an improved optimum control method and apparatus for internal combustion engines capable of preventing undesired correction control of the control variable from being effected in response to a change of the engine speed caused by any factor of disturbance.
摘要翻译： 在用于内燃机的最佳控制中，其中通过根据所检测到的发动机操作控制变量的操作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一个发动机操作控制变量的值来操作发动机 发动机，并且基于检测到的发动机工作状态的变化来决定改善燃料消耗率和发动机的输出中的任一个的方向，从而在所述时间段期间校正所选择的控制变量的计算值 每次发动机动作的发动机速度都被检测到两次以上，用于决定发动机转速变化的方向，从而能够提供改善的内燃机的最佳控制方法和装置， 响应于由任何因素引起的发动机转速的变化而实现的控制变量 骚乱。
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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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18.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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19.发明授权Method and system for operating an engine at maximum torque with variable amount of dither 失效以可变量的抖动以最大扭矩操作发动机的方法和系统
公开(公告)号：US4467765A
公开(公告)日：1984-08-28
申请号：US352563
申请日：1981-02-26
CPC分类号： F02P5/1455 , F02D41/1408 , F02P5/151 , Y02T10/46
摘要： Spark ignition timing of an internal combustion engine is oscillated on each side of a variable reference setting during successive ignition phases and the resultant engine speed is detected during 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. At least one of controlled parameters including the magnitude of the oscillated setting with respect to the variable reference, the length of the ignition phase and the amount of the adjusted reference setting, is varied as a function of an engine operating parameter.
摘要翻译： 在连续点火阶段期间，内燃机的火花点火正时在可变参考设定的每一侧振荡，并且在至少三个连续相位期间检测到所得到的发动机转速。 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。 受控参数中的至少一个，其包括相对于可变参考值的振荡设置的大小，点火阶段的长度和调整的参考设置的量，作为发动机操作参数的函数而变化。
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20.发明授权Method and system for operating a power-producing machine at maximum torque under varying operating conditions 失效在变化的运行条件下以最大扭矩操作发电机的方法和系统
公开(公告)号：US4379333A
公开(公告)日：1983-04-05
申请号：US159435
申请日：1980-06-13
CPC分类号： F02P5/1455 , F02P5/151 , Y02T10/46
摘要： Spark ignition timing of an internal combustion engine is oscillated on opposite sides of the setting of a variable reference timing and the resultant engine speed is detected in at least three successive phases of the oscillation and stored in respective memories. The contents of the memories are compared with each other to detect whether they establish one of two predetermined relationships which occur exclusively in the absence of a manual command input to the engine. The variable reference setting is adjusted by a predetermined amount in a specified direction in response to the established relationship. The process is repeated so that the reference setting approaches an optimum advance angle at which the engine output torque is at a maximum. When the reference setting is at or near the optimum point or when a manual command engine input is present, the registered engine speed values establish a relationship other than the predetermined ones and the reference setting is not adjusted.
摘要翻译： 内燃机的火花点火时间在可变基准定时的设定的相对侧振荡，并且在振荡的至少三个连续相中检测到所得到的发动机速度，并存储在相应的存储器中。 将存储器的内容相互比较，以检测它们是否建立在仅在没有向发动机的手动命令输入的情况下出现的两个预定关系之一。 响应建立的关系，可变参考设置在指定方向上调整预定量。 重复该过程，使得参考设置接近发动机输出扭矩处于最大值的最佳提前角。 当参考设置处于或接近最佳点时或当存在手动指令引擎输入时，注册的发动机速度值建立除了预定值之外的关系，并且不调整参考设置。
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