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    • 1. 发明授权
    • Air-fuel ratio controller
    • 空燃比控制器
    • US5043901A
    • 1991-08-27
    • US386169
    • 1989-07-28
    • Masaaki MiyazakiShinji KojimaHajime Kako
    • Masaaki MiyazakiShinji KojimaHajime Kako
    • F02D41/24
    • F02D41/2454F02D41/2448
    • An air-fuel ratio controller, including: fuel injection apparatus to supply an engine with fuel, a quantity of fuel to be delivered by the fuel injection apparatus being controlled by an impressed fuel quantity injection pulse having an injection time width corresponding to a desired fuel quantity; engine status detecting apparatus for detecting a status of at least one of a rotation frequency, intake manifold pressure, and volumetric efficiency operating parameter with respect to an operation of the engine; basic fuel quantity calculating apparatus for calculating a basic fuel quantity according to the status detected by the engine status detecting apparatus; air-fuel ratio sensor apparatus for detecting an air-fuel ratio in an exhaust gas from the engine; proportional integral processing apparatus for integrally processing and calculating an actual fuel quantity according to the output from the air-fuel ratio sensor apparatus; learning apparatus for calculating, using an output from the integral processing apparatus, a learned value to correct the basic fuel quantity into a controlled fuel quantity; learned value correcting apparatus for correcting the basic fuel quantity by using the learned value from the learning apparatus; and, calculation prohibiting apparatus for prohibiting the learning apparatus from calculating until a predetermined time lapses after the engine starts, or until a predetermined time lapses after an engine cooling water temperature is detected to have reached a predetermined temperature level.
    • 一种空燃比控制器,包括:用于向发动机供应燃料的燃料喷射装置,由燃料喷射装置输送的燃料量由具有对应于期望燃料的喷射时间宽度的喷射燃料量喷射脉冲控制 数量; 发动机状态检测装置,用于检测关于发动机的运转的旋转频率,进气歧管压力和容积效率运行参数中的至少一个的状态; 基本燃料量计算装置,用于根据由发动机状态检测装置检测的状态计算基本燃料量; 用于检测来自发动机的废气中的空燃比的空燃比传感器装置; 比例积分处理装置,用于根据空燃比传感器装置的输出一体地处理和计算实际燃料量; 用于计算使用来自所述积分处理装置的输出的学习值,以将所述基本燃料量校正为受控燃料量; 学习值校正装置,用于通过使用来自学习装置的学习值来校正基本燃料量; 以及用于禁止学习装置计算的计算禁止装置,直到在发动机启动之后经过预定时间,或者直到检测到发动机冷却水温度达到预定温度水平之后经过预定时间。
    • 4. 发明授权
    • Idling speed control system of an internal combustion engine
    • 内燃机怠速控制系统
    • US4611560A
    • 1986-09-16
    • US681855
    • 1984-12-07
    • Masaaki MiyazakiMitsuaki IshiiHajime KakoNoboru NakamuraHideo Kakinuma
    • Masaaki MiyazakiMitsuaki IshiiHajime KakoNoboru NakamuraHideo Kakinuma
    • F02D31/00F02D41/08F02D11/10
    • F02D31/004F02D41/083
    • The present invention is adapted for providing an idling speed control system of an internal combustion engine, which exhibits a good response for changes in an engine load, comprising: a throttle valve which controls the amount of intake air for the engine; an actuator which includes an electric motor for variably controlling the opening of the throttle valve; a rotation speed detector for detecting the rotation speed of the engine; an idling condition detector for detecting the idling condition of the engine; and a control, responsive to the detected output of the idling condition detector means, for generating feedback control pulses to intermittently drive said electric motor so that the detected rotation speed of the engine under the idling condition may converge into a target idling rotation speed while, responsive to the output of a detector that detects the operation condition of the engine load operated under the idling condition of the engine, or to the detected output of said rotation speed detector indicating that the detected rotation speed has dropped to an abnormally low rotation speed of the engine, for generating drive control pulses at a time independent of said feedback control pulses to drive said electric motor in a predetermined direction.
    • PCT No.PCT / JP84 / 00175 Sec。 371日期1984年12月7日 (e)日期1984年12月7日PCT 1984年4月7日提交PCT本发明适用于提供内燃机的空转速度控制系统,其对发动机负荷的变化表现出良好的响应,包括: 控制发动机的进气量的节流阀; 致动器,其包括用于可变地控制节流阀的开口的电动机; 用于检测发动机的转速的转速检测器; 怠速状态检测器,用于检测发动机的怠速状态; 以及响应于所述怠速条件检测器装置的检测到的输出的控制,用于产生反馈控制脉冲以间歇地驱动所述电动机,使得在怠速状态下所检测的发动机的转速可能会收敛到目标怠速转速, 响应于检测器的输出,该检测器检测在发动机的怠速状态下操作的发动机负载的操作状态,或者响应于所述转速检测器的检测到的输出,指示检测到的转速已经下降到异常低的转速 发动机,用于一次独立于所述反馈控制脉冲产生驱动控制脉冲,以沿预定方向驱动所述电动机。
    • 5. 发明授权
    • Engine control apparatus
    • 发动机控制装置
    • US4951647A
    • 1990-08-28
    • US347626
    • 1989-05-05
    • Koji EzumiMasaaki MiyazakiShoichi WashinoHajime Kako
    • Koji EzumiMasaaki MiyazakiShoichi WashinoHajime Kako
    • F02D41/04F02D41/24
    • F02D41/28F02D41/04F02D2200/704
    • An engine control apparatus comprises a throttle sensor, a pressure sensor for detecting a pressure in the intake manifold of an engine as a value of the absolute pressure, an engine revolution speed detector, a zone detector for detecting the fact that a signal value indicating a degree of opening of a throttle valve and a signal value indicating an engine revolution speed fall in a predetermined atmospheric pressure detection zone and a processing unit to calculate a value of atmospheric pressure by adding a set value to a signal of pressure upon detecting said values being in the detection zone. A timer may be provided to detect the fact that the signal values of the degree of opening of the throttle valve and the engine revolution speed are continuously in the atmospheric pressure detection zone for a predetermined time.
    • 发动机控制装置包括节流传感器,用于检测发动机的进气歧管中的压力的​​压力传感器作为绝对压力值,发动机转速检测器,区域检测器,用于检测指示 节气门的打开程度和指示发动机转速的信号值落在预定的大气压力检测区域中;以及处理单元,用于通过在检测到所述值时将设定值与压力信号相加来计算大气压力值 在检测区。 可以设置定时器,以检测节气门的开度的信号值和发动机转速在大气压检测区域中连续预定时间的事实。
    • 6. 发明授权
    • Abnormality detecting device for an EGR system
    • 用于EGR系统的异常检测装置
    • US4967717A
    • 1990-11-06
    • US271968
    • 1988-11-16
    • Masaaki MiyazakiHajime Kako
    • Masaaki MiyazakiHajime Kako
    • F02M25/07
    • F02M26/49F02M26/70
    • A detecting device for detecting abnormality in an EGR system comprises an EGR valve disposed in an EGR passage to control a flow rate of recirculated exhaust gas, a first temperature sensor disposed in the EGR passage to detect the temperature of the same, a second temperature sensor disposed in the air-intake passage of an engine, an EGR abnormality determining zone discriminating means to discriminate a specified operational zone in an operable area for the engine in which recirculation of the exhaust gas is controlled by the EGR valve. Abnormality in the EGR system is detected on the basis of a value obtained by comparison of the output of the first and second temperature sensors in the specified operational zone.
    • 用于检测EGR系统中的异常的检测装置包括:EGR阀,设置在EGR通道中以控制再循环废气的流量;第一温度传感器,设置在EGR通道中以检测其温度;第二温度传感器 设置在发动机的进气通路中的EGR异常判定区域识别装置,用于识别由EGR阀控制废气再循环的发动机的可操作区域中的指定操作区域。 基于通过比较指定操作区域中的第一和第二温度传感器的输出而获得的值来检测EGR系统中的异常。
    • 7. 发明授权
    • Fuel control apparatus for an internal combustion engine
    • 一种用于内燃机的燃油控制装置
    • US4984553A
    • 1991-01-15
    • US520934
    • 1990-05-09
    • Hajime KakoShinji Kojima
    • Hajime KakoShinji Kojima
    • F02D41/04F02D41/32F02D41/34
    • F02D41/32
    • A fuel control apparatus for an internal combustion engine which comprises a pressure detecting means for detecting a pressure in a bypass air passage which bypasses a throttle valve in an air intake system for an internal combustion engine, a first estimating means for estimating a value corresponding to the effective cross-sectional area of the bypass air passage, a second estimating means for estimating a pressure in an intake air pipe of the air intake system on the basis of a pressure value detected by the pressure detecting means and an estimated value of effective cross-sectional area obtained by the first estimating means, and an operating means for calculating a fuel injection quantity on the basis of an estimated value of pressure in the intake air pipe which is obtained by the second estimating means.
    • 一种用于内燃机的燃料控制装置,包括:压力检测装置,用于检测在内燃机的进气系统中绕过节流阀的旁通空气通道中的压力;第一估计装置,用于估计对应于 旁通空气通道的有效横截面积,第二估计装置,用于基于由压力检测装置检测的压力值和有效十字的估计值来估计进气系统的进气管道中的压力 通过第一估计装置获得的检测区域,以及用于基于由第二估计装置获得的进气管中的压力的​​估计值来计算燃料喷射量的操作装置。
    • 8. 发明授权
    • Abnormality detecting device for an EGR system
    • 用于EGR系统的异常检测装置
    • US5014203A
    • 1991-05-07
    • US353279
    • 1989-05-17
    • Masaaki MiyazakiHajime Kako
    • Masaaki MiyazakiHajime Kako
    • F02M25/06F02M25/07
    • F02M26/55F02M26/49
    • An abnormality detecting device for an EGR system comprises an EGR valve disposed in an EGR passage to control a flow rate of exhaust gas recirculated therethrough, a first temperature detecting device disposed in the EGR passage to detect the temperature of the same, a second temperature detecting device disposed in the intake air passage of an internal combustion engine, an operational condition detecting device to output parameters of the engine or the EGR valve as signals indicating operational conditions of the engine, an EGR abnormality determining zone discriminating device adapted to discriminate that the operational conditions are in a predetermined EGR abnormality determining zone in the operable area of the engine or the EGR valve in which recirculation of the exhaust gas is controlled by the EGR valve, and an abnormality determining device to determine abnormality in the EGR system on the basis of a quantitative relation between a value of the EGR abnormality determining temperature which is obtained by the calculation of the operational conditions and an output signal of the second temperature detecting device, and a value of the temperature of the EGR passage detected by the first temperature detecting device.
    • 一种用于EGR系统的异常检测装置,包括设置在EGR通路中的EGR阀,以控制通过其再循环的废气的流量,设置在EGR通道中以检测其温度的第一温度检测装置,第二温度检测 设置在内燃机的进气通道中的装置,用于输出发动机或EGR阀的参数的操作状态检测装置,作为指示发动机的运行状态的信号,EGR异常判定区识别装置,其适于区分操作 条件在发动机或EGR阀的可操作区域中的预定EGR异常判定区域中,其中排气的再循环由EGR阀控制,以及异常判定装置,用于基于 EGR异常判定值的值之间的定量关系 通过计算第二温度检测装置的操作条件和输出信号获得的温度,以及由第一温度检测装置检测的EGR通道的温度值。
    • 9. 发明授权
    • Apparatus for detecting fault in exhaust gas recirculation control
system of internal combustion engine
    • 用于检测内燃机废气再循环控制系统故障的装置
    • US5368005A
    • 1994-11-29
    • US153167
    • 1993-11-17
    • Hajime Kako
    • Hajime Kako
    • F02D41/00F02D41/22F02D43/00F02M25/07
    • F02D41/0055F02M26/49F02M26/57Y02T10/47
    • An apparatus detects occurrence of a fault in an exhaust gas recirculation (EGR) control system of an internal combustion engine. An intake air amount is changed by a predetermined quantity, which is determined in dependence on an operation state of the engine, when an EGR control valve is temporarily opened or closed. A determination is made as to whether a pressure within an intake pipe of the engine has changed after opening or closing of the EGR control valve. On the basis of the result of the above determination, occurrence of a fault in the EGR control system is determined. Regardless of resolution of an A/D converter which is employed in the EGR control system for performing A/D conversion of an analog signal indicative of a sensed intake air pressure, a fault thereof can be detected with high accuracy.
    • 一种装置检测内燃机的废气再循环(EGR)控制系统中的故障的发生。 当EGR控制阀暂时打开或关闭时,进气量根据发动机的运行状态而改变预定量。 确定在EGR控制阀的打开或关闭之后发动机的进气管内的压力是否已经改变。 基于上述判定的结果,确定EGR控制系统中的故障的发生。 不管在EGR控制系统中用于执行表示感测到的进气压力的模拟信号的A / D转换的A / D转换器的分辨率,可以高精度地检测其故障。
    • 10. 发明授权
    • Apparatus for detecting throttle opening of an engine
    • 用于检测发动机的节气门开度的装置
    • US5040515A
    • 1991-08-20
    • US610665
    • 1990-11-08
    • Hajime Kako
    • Hajime Kako
    • F02D45/00F02D41/24
    • F02D41/2474F02D41/28F02D2250/16F02D41/2441
    • An apparatus for detecting the degree of opening of a throttle valve of an engine. A first value indicating the degree of opening of the throttle valve and a second value indicating the opening of the throttle valve in an idling position are detected and stored. Whether the first value is kept unchanged for a fixed interval is decided when the throttle valve is in an idling position. A stable value of the first values is provided when the first value is kept unchanged for a fixed interval and the throttle valve is in an idling position. Then the second value is updated to the stable value. A value indicating the difference between the stored first and second values is calculated. The calculated value is used to control the amount of fuel supplied to the engine.
    • 一种用于检测发动机节流阀的开度的装置。 检测并存储表示节气门的开度的第一值和表示节气门在怠速位置的打开的第二值。 当节气门处于空转位置时,决定第一个值是否保持一定的间隔。 当第一值在固定间隔保持不变并且节气门处于空转位置时,提供第一值的稳定值。 然后将第二个值更新为稳定值。 计算表示存储的第一和第二值之间的差的值。 计算值用于控制供应给发动机的燃料量。