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11.发明授权
公开(公告)号：US4476532A
公开(公告)日：1984-10-09
申请号：US409349
申请日：1982-08-18
申请人： Susumu Akiyama , Kenzo Ito , Hiroyasu Fukaya , Haruhiko Ogiso , Yuji Hirabayashi , Takahide Kawamura
发明人： Susumu Akiyama , Kenzo Ito , Hiroyasu Fukaya , Haruhiko Ogiso , Yuji Hirabayashi , Takahide Kawamura
CPC分类号： F02P5/1502 , F02D41/26 , F02P3/0456 , F01P11/16 , Y02T10/46
摘要： An engine control method generally applicable to those control systems of the engine such as an ignition system, fuel injection system, etc., which are controlled to optimum operation in accordance with the engine operating conditions. In this method, an operation starting timing and an operation ending timing of the control system, e.g., in the case of the ignition system, an ignition coil energization starting timing and an ignition timing (an energization ending timing) are computed at each of predetermined computing cycles, and the latest computed ignition timing, for example, which is computed after the coil energization has been started further taking into consideration of the actual coil energization timing and a minimum required energization period is compared with an ignition timing computed in the preceding computing cycle, and a corrective computation of the latest computed ignition timing is carried out depending on the result of the comparison to obtain an optimum ignition timing. Also the history of the ON-OFF state of a bleed valve in an engine air supply system is monitored. The actual duty cycle of the valve is compared with a desired duty cycle to determine whether or not to open the valve for a succeeding time period.
摘要翻译： 通常适用于发动机的控制系统的发动机控制方法，例如点火系统，燃料喷射系统等，其被控制为根据发动机的运行条件进行最佳的操作。 在该方法中，在预定的每一个时，计算控制系统的操作开始定时和操作结束定时，例如在点火系统的情况下，点火线圈通电启动定时和点火正时（通电结束定时） 计算周期以及最近计算的点火正时，例如，在已经开始线圈通电之后计算出的最新的计时点火正时，进一步考虑到实际的线圈通电定时，并将最小的所需通电周期与在前面的计算中计算的点火时间进行比较 并且根据比较结果进行最新的计算点火正时的校正计算，以获得最佳点火正时。 此外，还监视发动机空气供给系统中的排气阀的ON-OFF状态的历史。 将阀的实际占空比与期望的占空比进行比较，以确定是否在随后的时间段内打开阀。
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12.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：US4347570A
公开(公告)日：1982-08-31
申请号：US103942
申请日：1979-12-14
申请人： Susumu Akiyama , Kenzo Ito , Hiroyasu Fukaya , Haruhiko Ogiso , Yuji Hirabayashi , Takahide Kawamura
发明人： Susumu Akiyama , Kenzo Ito , Hiroyasu Fukaya , Haruhiko Ogiso , Yuji Hirabayashi , Takahide Kawamura
CPC分类号： F02P5/1502 , F02D41/26 , F02P3/0456 , F01P11/16 , Y02T10/46
摘要： An engine control method and apparatus generally applicable to those control systems of the engine such as an ignition system, fuel injection system, etc., which are controlled to optimum operation in accordance with the engine operating conditions. In this method, an operation starting timing and an operation ending timing of the control system, e.g., in the case of the ignition system, an ignition coil energization starting timing and an ignition timing (an energization ending timing) are computed at each of predetermined computing cycles, and the latest computed ignition timing, for example, which is computed after the coil energization has been started, further taking into consideration the actual coil energization timing and a minimum required energization period is compared with an ignition timing computed in the preceding computing cycle, and a corrective computation of the latest computed ignition timing is carried out depending on the result of the comparison to obtain an optimum ignition timing.
摘要翻译： 通常可应用于发动机的这些控制系统的发动机控制方法和装置，例如点火系统，燃料喷射系统等，其被控制为根据发动机操作条件进行最佳操作。 在该方法中，在预定的每一个时，计算控制系统的操作开始定时和操作结束定时，例如在点火系统的情况下，点火线圈通电启动定时和点火正时（通电结束定时） 计算周期以及最近计算的点火时间，例如，在线圈通电已经开始之后计算的，进一步考虑到实际线圈通电定时和最小所需通电周期与在前一计算中计算出的点火时间进行比较 并且根据比较结果进行最新的计算点火正时的校正计算，以获得最佳点火正时。
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14.发明授权Computer based engine control with lower priority interrupt requests generated in selected higher priority interrupt routines 失效基于计算机的发动机控制，在选定的较高优先级中断程序中产生较低优先级的中断请求
公开(公告)号：US4558417A
公开(公告)日：1985-12-10
申请号：US614243
申请日：1984-05-25
申请人： Susumu Akiyama , Kenzo Ito , Hiroyasu Fukaya , Haruhiko Ogiso , Yuji Hirabayashi , Takahide Kawamura
发明人： Susumu Akiyama , Kenzo Ito , Hiroyasu Fukaya , Haruhiko Ogiso , Yuji Hirabayashi , Takahide Kawamura
CPC分类号： F02P5/1502 , F02D41/26 , F02P3/0456 , F01P11/16 , Y02T10/46
摘要： An engine control method and apparatus generally applicable to those control systems of the engine such as an ignition system, fuel injection system, etc., which are controlled to optimum operation in accordance with the engine operating conditions. A plurality of angular pulses are generated during each rotation of the engine and these pulses are counted. In response to each pulse, an angular interrupt request is generated and the interrupt is performed in response thereto. The angular interrupt routines are of the highest priority and are executed irrespective of the execution status of the central processing unit to control an electric device associated with the engine in accordance with control data calculated by the central processing unit. Program interrupt requests are generated during selected angular interrupt routines when the counted number of angular pulses reaches a predetermined value. Program interrupt routines of lower priority than the angular interrupt routines are then executed to calculate the control data for the electric device.
摘要翻译： 通常可应用于发动机的这些控制系统的发动机控制方法和装置，例如点火系统，燃料喷射系统等，其被控制为根据发动机操作条件进行最佳操作。 在发动机的每次旋转期间产生多个角脉冲，并且对这些脉冲进行计数。 响应于每个脉冲，产生角度中断请求并响应于此执行中断。 角中断程序具有最高优先级，并且与中央处理单元的执行状态无关地执行，以根据由中央处理单元计算的控制数据来控制与发动机相关联的电气设备。 当计数的角脉冲数达到预定值时，在选定的角度中断程序期间产生程序中断请求。 然后执行比角中断程序优先级低的程序中断程序，以计算电气设备的控制数据。
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公开(公告)号：US4713765A
公开(公告)日：1987-12-15
申请号：US704032
申请日：1985-02-21
申请人： Tomoaki Abe , Hideya Fujisawa , Norio Omori , Masumi Kinugawa , Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada
发明人： Tomoaki Abe , Hideya Fujisawa , Norio Omori , Masumi Kinugawa , Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada
CPC分类号： F02D41/187
摘要： A control system for an engine has a temperature sensitive element as part of a device for measuring the air flow in an air intake manifold to the engine. Further, a first pulse signal is generated, corresponding to the rotation of the engine, for controlling the setting of a flip-flop. A transistor is conducted in the set state of the flip-flop to supply a heating electric current to the element. The element supplied with the current is raised to the temperature that corresponds to the air flow in the manifold. When the temperature of the element is raised until the specified temperature difference to the air temperature (measured by a sub temperature sensitive element) is set, the temperature difference is detected by a comparator, and the flip-flop is reset by the detection signal. A pulse-shaped signal corresponding to the set state of the flip-flop is produced as a measurement output signal, supplied as one detection signal of the operating state of the engine to an engine control unit, and the current to the element is controlled to be supplied by the pulse-shaped signal.
摘要翻译： 用于发动机的控制系统具有温度敏感元件，作为用于测量到发动机的进气歧管中的气流的装置的一部分。 此外，产生与发动机的旋转对应的第一脉冲信号，用于控制触发器的设定。 晶体管在触发器的置位状态下被导通，以向元件提供加热电流。 提供电流的元件升高到对应于歧管中气流的温度。 当元件的温度升高直到与空气温度（由次级温度敏感元件测量）的指定温度差设定为止时，通过比较器检测温度差，并且触发器由检测信号复位。 产生与触发器的设定状态相对应的脉冲状信号作为测量输出信号，作为发动机的运行状态的一个检测信号提供给发动机控制单元，并且将对该元件的电流控制为 由脉冲信号提供。
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公开(公告)号：US4671242A
公开(公告)日：1987-06-09
申请号：US736373
申请日：1985-05-21
CPC分类号： F02D41/2412 , F02D41/182 , F02D41/187
摘要： An engine control apparatus has an air flow rate measuring device for measuring an intake air flow rate. A temperature sensing element having a temperature characteristic and constituting the device is arranged in an intake pipe. The device generates an output pulse signal having a pulse width T corresponding to the intake air flow rate. An engine control unit has the one-dimensional map for storing the relationship between the engine speed N and the pulse width to of the signal corresponding to the air flow rate. This data to is read out from the one-dimensional map in accordance with the engine speed N. Subsequently, the data to is subtracted from the data T to calculate a time duration t. The unit also has a two-dimensional map for storing the relationship between each time duration t and the corresponding rate G/N in correspondence with each of the present engine speeds. A corresponding rate G/N is read out from the two-dimensional map in response to the calculated time duration t. The resultant rate G/N is used to calculate fuel injection quantity.
摘要翻译： 发动机控制装置具有用于测量进气流量的空气流量测量装置。 具有温度特性并构成装置的温度感测元件设置在进气管中。 该装置产生具有对应于进气流量的脉冲宽度T的输出脉冲信号。 发动机控制单元具有存储发动机转速N与对应于空气流量的信号的脉冲宽度对的关系的一维映射。 根据发动机转速N从一维映射中读出该数据。接着，从数据T中减去数据，计算持续时间t。 该单元还具有用于存储与每个当前发动机速度相对应的每个持续时间t和相应速率G / N之间的关系的二维图。 响应于计算的持续时间t，从二维图中读出对应的速率G / N。 合成速率G / N用于计算燃料喷射量。
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17.发明授权
公开(公告)号：US4736302A
公开(公告)日：1988-04-05
申请号：US742524
申请日：1985-06-07
申请人： Masumi Kinugawa , Norio Omori , Tomoaki Abe , Katsunori Ito , Susumu Akiyama , Yuzi Hirabayashi
发明人： Masumi Kinugawa , Norio Omori , Tomoaki Abe , Katsunori Ito , Susumu Akiyama , Yuzi Hirabayashi
IPC分类号： F02D41/00 , F02D41/18 , F02D41/24 , F02D41/26 , F02D45/00 , H01L21/302 , F02M51/00 , G01F1/68
CPC分类号： F02D41/187 , F02D41/263
摘要： A system for controlling the operating condition of an engine in which a temperature sensing element constitutes an airflow measuring device disposed in an intake air passage of the engine. The temperature sensing element is supplied with a heating current in response to a start pulse signal produced with every one-half period of each combustion cycle of the engine. A comparator delivers an output signal when a reference temperature set on the basis of the air temperature measured by an auxiliary temperature sensing element is reached by the temperature of the temperature sensing element. A pulse signal indicative of the time interval between the generation of the start pulse signal and a rise in the output signal of the comparator is delivered as an airflow measurement signal. The average airflow quantity responsive to one combustion cycle of the engine is detected, and a correction factor K is calculated from the difference between two airflow rate data measured in each combustion cycle and the average airflow quantity. Based on the correction factor K, the injection quantity, injection timing and the like are calculated.
摘要翻译： 一种用于控制发动机的操作状态的系统，其中温度感测元件构成设置在发动机的进气通道中的气流测量装置。 响应于在发动机的每个燃烧循环的每半个周期产生的起动脉冲信号，向温度感测元件供应加热电流。 当基于由辅助温度感测元件测量的空气温度设定的参考温度达到温度感测元件的温度时，比较器输出输出信号。 指示起始脉冲信号的产生和比较器的输出信号的上升之间的时间间隔的脉冲信号作为气流测量信号被输送。 检测响应于发动机的一个燃烧循环的平均气流量，并且根据在每个燃烧循环中测量的两个气流速率数据与平均气流量之间的差计算校正因子K. 基于校正因子K，计算喷射量，喷射正时等。
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18.发明授权Apparatus for measuring the quantity of airflow passing through an intake passage of an engine 失效用于测量通过发动机的进气通道的气流量的装置
公开(公告)号：US4565091A
公开(公告)日：1986-01-21
申请号：US723894
申请日：1985-04-16
申请人： Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
发明人： Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
CPC分类号： G01F1/6986 , F02D41/187 , G01F1/68 , G01F1/6983
摘要： Disposed in an intake pipe of an engine is a temperature-sensitive element formed of a resistance element whose resistance value varies with temperature. A heating current is supplied to the temperature-sensitive element through a transistor. The voltage of the heating current is set by a constant-voltage circuit. The temperature of the temperature-sensitive element is compared with a reference temperature of an auxiliary temperature-sensitive element. When the temperature of the temperature-sensitive element is increased to a predetermined level, an output signal is delivered from a comparator. A flip-flop circuit is reset by the output signal from the comparator, and is set by a start pulse signal. When the flip-flop circuit is set, the transistor is turned on, allowing the heating current to be supplied to the temperature-sensitive element. A burning-off instruction signal is supplied to a monostable multivibrator, and a signal with a duration suited for the burning-off operation is delivered from an AND circuit. In response to the output signal from the AND circuit, the flip-flop circuit is held set, and a reference voltage supplied to the differential amplifier is changed to a low level.
摘要翻译： 在发动机的进气管中设置的是由电阻值随温度变化的电阻元件形成的感温元件。 通过晶体管将加热电流提供给感温元件。 加热电流的电压由恒压电路设定。 将温度敏感元件的温度与辅助温度敏感元件的参考温度进行比较。 当温度敏感元件的温度升高到预定电平时，输出信号从比较器输出。 触发器电路由比较器的输出信号复位，并由起始脉冲信号设定。 当触发器电路被置位时，晶体管导通，允许加热电流被提供给温度敏感元件。 烧断指令信号被提供给单稳态多谐振荡器，并且具有适合于断电操作的持续时间的信号从AND电路传送。 响应于AND电路的输出信号，触发器电路被保持置位，并且提供给差分放大器的参考电压变为低电平。
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公开(公告)号：US4669306A
公开(公告)日：1987-06-02
申请号：US743492
申请日：1985-06-11
CPC分类号： G01F1/6986 , G01F1/6983
摘要： A heat generating element having a thermal characteristic such that its resistance varies in response to changes in temperature is provided in the intake pipe of an engine. A heating power, the voltage of which is set by a reference voltage source, is supplied to the heat generating element via a transistor. The supply of this heating power is controlled by a start pulse signal periodically generated by a set flip-flop circuit when the ignition switch is on. When the heat generating element reaches a predetermined temperature, the supply is cut off by the flip-flop circuit. A measurement signal having a pulse width corresponding to the time period of heating power supply is generated from the flip-flop circuit. The opening of the ignition switch is detected and a one-shot multivibrator is driven to produce a burn-off signal having a pulse width to which the burn-off period corresponds. This burn-off control signal turns the transistor on and heating power is supplied to the heat generating element and the voltage of the reference power source is reduced so that the voltage of the heating power is switched to a low level.
摘要翻译： 在发动机的进气管中设置具有热特性使得其电阻随温度变化而变化的发热元件。 其电压由参考电压源设定的加热功率通过晶体管提供给发热元件。 当点火开关接通时，通过由设置的触发器电路周期性地产生的起动脉冲信号来控制该加热功率的供应。 当发热元件达到预定温度时，电源被触发器电路切断。 从触发电路产生具有与加热电源的时间段对应的脉冲宽度的测量信号。 检测点火开关的打开，并且驱动单稳态多谐振荡器以产生具有燃烧时间对应的脉冲宽度的燃烧断开信号。 该熄火控制信号使晶体管接通，向发热元件供给加热电力，降低基准电源的电压，使加热电力的电压切换为低电平。
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公开(公告)号：US4596138A
公开(公告)日：1986-06-24
申请号：US721182
申请日：1985-04-08
申请人： Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
发明人： Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
CPC分类号： G01F1/6986 , F02D41/187 , G01F1/6983
摘要： The intake airflow rate supplied to an internal combustion engine is measured and an obtained airflow rate measurement signal is used for detecting the operating state of the internal combustion engine. The internal combustion engine is electronically controlled, and an airflow rate measuring unit includes a heat-generating element having a temperature-resistance characteristic. A heating current which rises in correspondence with a signal synchronous with rotation of the engine is supplied to the heat-generating element. The heating current is controlled to rise when the heat-generating element is heated to a predetermined temperature, and the heating current duration indicates the airflow rate measurement signal. A burn-off command signal is generated so as to burn off dust attached to the heat-generating element. The command signal is used to generate a periodic signal having a preset effective duration. The pulse signal sets a continuous supply of the heating current to the element for the pulse duration, so that the heat-generating element is heated to a temperature for burning off dust attached thereto.
摘要翻译： 测量供应到内燃机的进气流量，并且使用获得的气流速率测量信号来检测内燃机的运行状态。 内燃机是电子控制的，气流量测量单元包括具有耐温特性的发热元件。 对应于与发动机的旋转同步的信号上升的加热电流被供应到发热元件。 当发热元件被加热到预定温度时，加热电流被控制上升，加热电流持续时间指示气流速度测量信号。 产生燃烧命令信号，以便燃烧附着在发热元件上的灰尘。 命令信号用于产生具有预设有效持续时间的周期信号。 脉冲信号使脉冲持续时间内的元件的加热电流连续供给，从而将发热元件加热至附着于其上的灰尘的温度。
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