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公开(公告)号：US5473888A
公开(公告)日：1995-12-12
申请号：US261282
申请日：1994-06-15
申请人： Hisayo Douta , Masumi Kinugawa , Atsushi Suzuki
发明人： Hisayo Douta , Masumi Kinugawa , Atsushi Suzuki
CPC分类号： F02D41/1486 , F02D41/1477 , F02D41/2445 , F02D41/2454 , F02D41/2474
摘要： An air-fuel ratio control system for an internal combustion engine utilizes a pre-stored standard relation between an air-fuel ratio sensor signal and a standard air-fuel ratio indicative value for deriving the standard air-fuel ratio indicative value based on the sensor signal. The system further utilizes a pre-stored modified relationship between the standard air-fuel ratio indicative value and a for-control air-fuel ratio indicative value for deriving a for-control air-fuel ratio indicative value based on the derived standard air-fuel ratio indicative value. In the modified relationship, the for-control air-fuel ratio indicative value varies with respect to a corresponding variation of the standard air-fuel ratio indicative value within a given range across the standard air-fuel ratio indicative value representing a stoichiometric air-fuel ratio.
摘要翻译： 用于内燃机的空燃比控制系统利用空燃比传感器信号和标准空燃比指示值之间的预先存储的标准关系，以基于传感器得出标准空燃比指示值 信号。 该系统进一步利用标准空燃比指示值和用于控制空燃比指示值之间的预先存储的改进关系，用于基于导出的标准空气燃料导出控制空燃比指示值 比率指标值。 在修改关系中，控制空燃比指示值相对于表示理论空燃比的标准空燃比指示值的给定范围内的标准空燃比指示值的相应变化而变化 比。
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公开(公告)号：US5343701A
公开(公告)日：1994-09-06
申请号：US949689
申请日：1992-09-23
申请人： Hisayo Douta , Masumi Kinugawa , Atsushi Suzuki
发明人： Hisayo Douta , Masumi Kinugawa , Atsushi Suzuki
CPC分类号： F02D41/1486 , F02D41/1477 , F02D41/2445 , F02D41/2454 , F02D41/2474
摘要： An air-fuel ratio control system for an internal combustion engine utilizes a pre-stored standard relation between an air-fuel ratio sensor signal and a standard air-fuel ratio indicative value for deriving the standard air-fuel ratio indicative value based on the sensor signal. The system further utilizes a pre-stored modified relationship between the standard air-fuel ratio indicative value and a for-control air-fuel ratio indicative value for deriving a for-control air-fuel ratio indicative value based on the derived standard air-fuel ratio indicative value. In the modified relationship, the for-control air-fuel ratio indicative value varies with respect to a corresponding variation of the standard air-fuel ratio indicative value within a given range across the standard air-fuel ratio indicative value representing a stoichiometric air-fuel ratio.
摘要翻译： 用于内燃机的空燃比控制系统利用空燃比传感器信号和标准空燃比指示值之间的预先存储的标准关系，以基于传感器得出标准空燃比指示值 信号。 该系统进一步利用标准空燃比指示值和用于控制空燃比指示值之间的预先存储的改进关系，用于基于导出的标准空气燃料导出控制空燃比指示值 比率指标值。 在修改关系中，控制空燃比指示值相对于表示理论空燃比的标准空燃比指示值的给定范围内的标准空燃比指示值的相应变化而变化 比。
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公开(公告)号：US4571991A
公开(公告)日：1986-02-25
申请号：US645393
申请日：1984-08-29
申请人： Tomoaki Abe , Masumi Kinugawa , Atsushi Suzuki
发明人： Tomoaki Abe , Masumi Kinugawa , Atsushi Suzuki
CPC分类号： G01F1/698
摘要： An air flow detecting element is located in the air flow to be measured. This air flow detecting element comprises a heater made of resistant material having a positive temperature coefficient and wound around a first heat resistant frame, a first heat sensitive element wound around the first frame together with the heater and made of resistant material having a positive temperature coefficient and receiving heat from the heater, and a second heat sensitive element wound around a second heat resistant frame and made of resistant material having a positive temperature coefficient, and serving to measure the temperature of the air. A bridge circuit comprises a series circuit consisting of the heater and fixed resistances connected in series with each other, and a series circuit consisting of the first and second heat sensitive elements connected in series with each other. Potential differences at the output terminal of this bridge circuit are compared by an OP amplifier. The base of a transistor, with controls the power source current relative to the bridge circuit, is controlled by the OP amplifier. An output voltage signal which corresponds to the value of the current flowing to the heater is detected and supplied as a terminal voltage of the fixed resistance.
摘要翻译： 空气流量检测元件位于要测量的空气流中。 这种气流检测元件包括由耐温材料制成的加热器，其具有正温度系数并缠绕在第一耐热框架上，第一热敏元件与加热器一起缠绕在第一框架周围，并由具有正温度系数的电阻材料制成 并且从加热器接收热量，以及缠绕在第二耐热框架周围并由具有正温度系数的耐热材料制成并用于测量空气温度的第二热敏元件。 桥式电路包括由加热器和彼此串联连接的固定电阻组成的串联电路，以及由彼此串联连接的第一和第二热敏元件组成的串联电路。 该桥式电路输出端的电位差由OP放大器进行比较。 控制电源电流相对于桥式电路的晶体管的基极由OP放大器控制。 检测并输出与流过加热器的电流值对应的输出电压信号作为固定电阻的端子电压。
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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：US4683858A
公开(公告)日：1987-08-04
申请号：US863938
申请日：1986-05-16
申请人： Yoshihisa Sato , Masumi Kinugawa , Susumu Akiyama , Toshitaka Yamada , Tiaki Mizuno , Atsushi Suzuki
发明人： Yoshihisa Sato , Masumi Kinugawa , Susumu Akiyama , Toshitaka Yamada , Tiaki Mizuno , Atsushi Suzuki
CPC分类号： G01F1/6965 , F02D41/187 , G01F1/698 , G01F1/6986
摘要： In an apparatus for controlling an engine, as an air flow sensor for measuring intake air flow quantity, a heater resistor having temperature-resistance characteristic and a temperature sensitive resistor for sensing air temperature are provided in an intake passage, and heating electric power is supplied to the heater resistor in response to a start signal generated periodically. The heating electric power is cut off when the temperature of the heater resistor is raised to a specified reference temperature predetermined in accordance with the air temperature, so that an output signal indicative of the time width in which the heating electric power is supplied is applied to an electronic control unit to measure air flow quantity therefrom. Further, compensation coefficient stored in a memory is derived in correspondence to the intake air temperature sensed by the temperature sensitive resistor, and the output signal is compensated for by the compensation coefficient to compensate the measured air flow quantity. Based on the compensated air flow quantity, fuel injection quantity, ignition timing or the like is computed in the electronic control unit.
摘要翻译： 在用于控制发动机的装置中，作为用于测量进气流量的气流传感器，具有耐温特性的加热电阻器和用于感测空气温度的感温电阻器设置在进气通道中，并且供应加热电力 响应于周期性地产生的启动信号到加热器电阻器。 当加热电阻器的温度升高到根据空气温度预定的指定参考温度时，加热电力被切断，从而将表示加热电力的时间宽度的输出信号施加到 电子控制单元，用于测量气流量。 此外，存储在存储器中的补偿系数相应于由感温电阻感测的进气温度导出，并且通过补偿系数补偿输出信号以补偿测量的空气流量。 基于补偿空气流量，在电子控制单元中计算燃料喷射量，点火正时等。
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公开(公告)号：US4612894A
公开(公告)日：1986-09-23
申请号：US791526
申请日：1985-10-25
申请人： Yoshihisa Satoh , Susumu Akiyoma , Katsunori Ito , Katsuhiro Ina , Masumi Kinugawa , Atsushi Suzuki
发明人： Yoshihisa Satoh , Susumu Akiyoma , Katsunori Ito , Katsuhiro Ina , Masumi Kinugawa , Atsushi Suzuki
CPC分类号： F02D41/187
摘要： An engine control system has a heater and a temperature measuring element with a temperature-resistance characteristic. The heater and element are provided in the intake pipe of an engine. Heating, which initiated by a start pulse signal generated by an engine control unit in synchronism with engine rotation is supplied to the heater through a transistor. When the heater temperature has reached a reference temperature preset in accordance with the intake air temperature measured by the element, a comparator generates an output to deenergize the heater. The period of supplying the heating power is represented by a pulse signal from a flip-flop. This pulse signal is supplied as an airflow measurement signal to the engine control unit. The engine control unit calculates the basic fuel injection quantity and determines if the starting of the pulse signal received by the control unit falls within a predetermined period from the starting of the start pulse signal. If the starting has fallen outside the predetermined period, the output signal is considered to have been generated in response to a noise signal. In this case, a normal output signal next to the output signal generated in response to the noise signal is corrected.
摘要翻译： 发动机控制系统具有加热器和耐温特性的温度测量元件。 加热器和元件设置在发动机的进气管中。 由发动机控制单元产生的与发动机旋转同步的起动脉冲信号启动的加热通过晶体管供给加热器。 当加热器温度达到根据由元件测量的进气温度预设的参考温度时，比较器产生一个使加热器灭弧的输出。 提供加热功率的周期由来自触发器的脉冲信号表示。 该脉冲信号作为气流测量信号提供给发动机控制单元。 发动机控制单元计算基本燃料喷射量，并确定由控制单元接收到的脉冲信号的启动是否落在从开始脉冲信号开始的预定时间段内。 如果启动已经落在预定时间段之外，则输出信号被认为是响应于噪声信号而产生的。 在这种情况下，校正与响应于噪声信号而产生的输出信号相邻的正常输出信号。
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公开(公告)号：US4665745A
公开(公告)日：1987-05-19
申请号：US729852
申请日：1985-05-02
申请人： Katsuhiro Ina , Yoshihisa Sato , Masumi Kinugawa , Atsushi Suzuki , Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
发明人： Katsuhiro Ina , Yoshihisa Sato , Masumi Kinugawa , Atsushi Suzuki , Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
CPC分类号： G01F1/6986
摘要： An air flowrate measuring apparatus with a heat wire measures the flow rate of the air flowing through the intake pipe of an engine. The apparatus has a temperature sensitive element which has a specific temperature-resistance characteristic and is disposed in the intake pipe. Constant heating voltage is applied to this element in response to a start signal, thus heating the element. When the temperature of the element rises to a specified value, the application of the voltage is stopped. At the same time, a pulse signal whose width corresponds to the period of applying the voltage is generated. The signal is supplied to an interface circuit through a drive circuit driven by a reference voltage which has been also used to control the heating voltage. The interface circuit comprises two wave-shaping circuits. The first wave-shaping circuit has a filter means of a small integration time constant. The second wave-shaping circuit has a filter means whose integration time constant is large enough to remove noise from the input signal.
摘要翻译： 具有热丝的空气流量测量装置测量流过发动机的进气管的空气的流量。 该装置具有温度敏感元件，该温度敏感元件具有特定的耐温特性并且设置在进气管中。 响应于启动信号对该元件施加恒定的加热电压，从而加热元件。 当元件的温度上升到指定值时，停止施加电压。 同时，产生宽度对应于施加电压的周期的脉冲信号。 该信号通过由参考电压驱动的驱动电路提供给接口电路，该参考电压也被用于控制加热电压。 接口电路包括两个波形整形电路。 第一波形整形电路具有小积分时间常数的滤波器装置。 第二波形整形电路具有滤波器装置，其积分时间常数足够大以从输入信号中去除噪声。
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公开(公告)号：US4680964A
公开(公告)日：1987-07-21
申请号：US874854
申请日：1986-06-16
申请人： Yoshihisa Sato , Masumi Kinugawa , Susumu Akiyama , Toshitaka Yamada , Tiaki Mizuno , Atsushi Suzuki , Kengo Sugiura
发明人： Yoshihisa Sato , Masumi Kinugawa , Susumu Akiyama , Toshitaka Yamada , Tiaki Mizuno , Atsushi Suzuki , Kengo Sugiura
CPC分类号： G01F1/698 , G01F1/6986 , G01P5/12
摘要： A heater, which comprises an element whose resistance varies with changes in temperature, and a temperature element are provided in the air intake pipe of an engine. This heater and temperature element together with resistors form a bridge circuit to which heating power is supplied via a transistor. An engine control unit generates start signals Tin simultaneously with the rotation of the engine. A flip-flop circuit is set by these start signals and, when set, the transistor is turned on and the heating power rises. The output signal from the bridge circuit is supplied to a comparator and the output signal of the comparator resets the flip-flop circuit, which outputs a pulse-shaped signal representing the airflow quantity as a length of time. This pulse-shaped time signal is sent via a constant current circuit to another comparator, where it is compared with a reference voltage and the output signal from the comparator is supplied together with the above time signal to an exclusive OR circuit. This exclusive OR circuit outputs a first and second pulse signal as the measurement output signal Tout synchronously with the rise and fall of the time signal and this signal is supplied to the engine control unit.
摘要翻译： 在发动机的进气管中设置有加热器，其包括其电阻随温度变化而变化的元件和温度元件。 该加热器和温度元件与电阻器一起形成桥式电路，通过晶体管供应加热功率。 发动机控制单元在发动机旋转的同时产生起始信号Tin。 触发器电路由这些启动信号设定，当置位时，晶体管导通，加热功率上升。 来自桥接电路的输出信号被提供给比较器，并且比较器的输出信号复位触发器电路，其将表示气流量的脉冲信号输出为时间长度。 该脉冲形时间信号通过恒流电路发送到另一个比较器，在此与比较器进行比较，将来自比较器的输出信号与上述时间信号一起提供给异或电路。 该异或电路输出作为测量输出信号Tout的第一和第二脉冲信号与时间信号的上升和下降同步，并将该信号提供给发动机控制单元。
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公开(公告)号：US20070044459A1
公开(公告)日：2007-03-01
申请号：US11514146
申请日：2006-09-01
IPC分类号： F01N3/00
CPC分类号： F01N9/002 , F01N3/023 , F01N11/002 , F01N11/005 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine includes a collector, which collects exhaust particles in exhaust gas. The apparatus computes a pressure-difference-based measured value of a collected amount of the particles based on a pressure difference, and computes a pressure-difference-based estimated value by correcting the measured value. The apparatus computes an operational-state-based estimated value of the collected amount. The apparatus regenerates the collector by burning the exhaust particles when one of the pressure-difference-based estimated value and the operational-state-based estimated value reaches a predetermined value. The apparatus computes a current pressure-difference-based estimated value by correcting a current pressure-difference-based measured value based on information related to an immediately preceding operational-state-based computing period such that the current pressure-difference-based estimated value ranges from the current measured value to a previous pressure-difference-based estimated value.
摘要翻译： 用于内燃机的废气净化装置包括收集器，其收集废气中的废气颗粒。 该装置基于压力差计算收集量的颗粒的基于压差的测量值，并通过校正测量值来计算基于压差的估计值。 该装置计算采集量的基于操作状态的估计值。 当基于压差的估计值和基于操作状态的估计值之一达到预定值时，设备通过燃烧排气颗粒来再生收集器。 该装置通过基于与前一个基于操作状态的计算周期相关的信息来校正当前基于压力差的测量值来计算当前基于压力差的估计值，使得当前基于压力差的估计值范围 从当前测量值到先前基于压差的估计值。
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10.发明授权Exhaust gas filtering system having particulate filter for internal combustion engine 有权具有用于内燃机的微粒过滤器的废气过滤系统公开(公告)号：US06969413B2
公开(公告)日：2005-11-29
申请号：US10459556
申请日：2003-06-12
CPC分类号： B01D46/2418 , B01D46/0063 , B01D46/446 , B01D46/46 , B01D2279/30 , F02D41/0002 , F02D41/029 , F02D41/123 , Y02T10/42 , Y10S55/10 , Y10S55/30
摘要： A flow rate of gas supplied to a diesel particulate filter is increased when it is determined that rapid combustion of collected particulates, which are collected by the particulate filter, is likely to occur based on an operating state of an internal combustion engine. Alternatively, the flow rate of gas supplied to the filter is increased when it is determined that rapid combustion of the collected particulates is initiated based on a state of the particulate filter.
摘要翻译： 当确定基于内燃机的运行状态可能发生由颗粒过滤器收集的收集的颗粒的快速燃烧时，提供给柴油微粒过滤器的气体的流量增加。 或者，当确定基于颗粒过滤器的状态开始收集的微粒的快速燃烧时，提供给过滤器的气体的流量增加。
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