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1. 发明授权

US4079711A Air-fuel ratio controlling device 失效
标题翻译：空燃比控制装置
公开(公告)号：US4079711A
公开(公告)日：1978-03-21
申请号：US742990
申请日：1976-11-18
申请人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
发明人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
IPC分类号： F02D41/14 , F02M23/04 , F01N3/15 , F02B75/10 , F02M37/00
CPC分类号： F02D41/1482
摘要： In an air-fuel ratio controlling device which comprises an exhaust gas sensor for detecting the air-fuel ratio of mixture and an additional air passage including a bypass valve and disposed to supply additional air to the downstream side of the throttle valve of an engine, the controlling device further comprises a throttle sensor operatively connected to the throttle valve for producing an output signal corresponding to the opening of the throttle valve, and a control circuit responsive to the signal from the throttle sensor whereby a predetermined time period after the occurrence of a change in the opening of the throttle valve is discriminated as the acceleration or deceleration period of the engine and the bypass valve is driven at one or the other of two speed depending on whether the engine is in the accleration/deceleration operating condition or other operating conditions.
摘要翻译：在一种空燃比控制装置中，包括用于检测混合物的空燃比的排气传感器和包括旁通阀的附加空气通道，并且设置成向发动机的节流阀的下游侧提供附加空气，所述控制装置还包括可操作地连接到所述节流阀的节气门传感器，用于产生对应于所述节流阀的打开的输出信号;以及控制电路，其响应来自所述节气门传感器的信号，从而在发生所述节流阀之后的预定时间段根据发动机是否处于加速/减速操作状态或其它运行状态，判别出发动机的加速或减速时间和旁通阀以两个速度的一个或多个的速度驱动，。

2. 发明授权

US4177787A Deteriorated condition detecting apparatus for an oxygen sensor 失效
标题翻译：氧传感器劣化状态检测装置
公开(公告)号：US4177787A
公开(公告)日：1979-12-11
申请号：US815832
申请日：1977-07-14
申请人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
发明人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
IPC分类号： G01N27/04 , F02D41/14 , F02D45/00 , G01N27/26 , G01N27/409 , G01N27/417 , G01N33/00 , F02B75/10 , F02B77/08
CPC分类号： G01N27/4175 , F02D41/1441 , F02D41/1495 , G01N33/0031 , G01N33/007 , F01N2550/02
摘要： An apparatus for detecting a deteriorated condition of an oxygen concentration sensor mounted in an exhaust pipe for an internal combustion engine for controlling an air-fuel ratio is described. The apparatus includes, in addition to the sensor, a reference oxygen concentration sensor mounted in the exhaust pipe downstream of a cleaning device, and a discrimination unit for determining the deterioration of the oxygen concentration sensor for controlling the air-fuel ratio by measuring at least one of a duty factor and a period of an output signal from the reference oxygen concentration sensor.
摘要翻译：描述了一种用于检测安装在用于控制空燃比的内燃机的排气管中的氧浓度传感器的劣化状况的装置。除了传感器之外，该装置还包括安装在清洁装置下游的排气管中的参考氧浓度传感器，以及用于通过至少测量来确定用于控制空燃比的氧浓度传感器的劣化的判别单元来自参考氧浓度传感器的占空因数和输出信号的周期之一。

3. 发明授权

US4077207A Additional air control device for maintaining constant air-fuel ratio 失效
标题翻译：用于保持恒定空燃比的附加空气控制装置
公开(公告)号：US4077207A
公开(公告)日：1978-03-07
申请号：US740174
申请日：1976-11-09
申请人： Tadashi Hattori , Takamichi Nakase , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Takamichi Nakase , Hiroaki Yamaguchi
IPC分类号： F02B75/10 , F01N3/22 , F02D41/14 , F02D41/18 , F02D41/24 , F02D43/00 , F02M23/04
CPC分类号： F02D41/1482 , F02D43/00
摘要： An additional air control device for maintaining constant air-fuel ratio in an internal combustion engine wherein an intake air which is supplied additionally through a bypass passage to the engine is controlled by controlling the movement of a drive motor coupled to a control valve mounted in the bypass passage. A gas sensor for sensing the oxygen content of the exhaust gas and an intake air flow meter for sensing the rate of intake air flow to the engine are provided. In accordance with a signal from the gas sensor and an intake air flow signal representing a delay time factor from the intake air flow sensor, the drive motor is controlled to stop or drive alternately in a skip movement fashion in either an opening or closing direction of the control valve, and a rest period of the drive motor is determined to be inversely proportional to the intake air flow rate and a driving period which is subsequent to the rest period is set to a fixed time period, thereby an air-fuel ratio is maintained at a constant value and an exhaust gas emission is controlled.
摘要翻译：一种额外的空气控制装置，用于在内燃机中保持恒定的空燃比，其中通过旁通通道另外供应到发动机的进气通过控制联接到安装在发动机中的控制阀的驱动马达的运动来控制旁路通道提供了一种用于感测废气氧含量的气体传感器和用于感测到发动机的进气流量的进气流量计。根据来自气体传感器的信号和表示来自进气流量传感器的延迟时间因子的进气流量信号，控制驱动马达以跳过运动方式交替地停止或驱动，控制阀和驱动电动机的停止时间被确定为与进气流量成反比，并且在休止期间之后的驱动期间被设定为固定时间段，从而空燃比为维持在恒定值并且排放废气被控制。

4. 发明授权

US4121548A Deteriorated condition detecting apparatus for an oxygen sensor 失效
标题翻译：氧传感器劣化状态检测装置
公开(公告)号：US4121548A
公开(公告)日：1978-10-24
申请号：US814122
申请日：1977-07-08
申请人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
发明人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
IPC分类号： F02D41/14 , G01N27/417 , G01N33/00 , F02B3/00
CPC分类号： F02D41/1441 , F02D41/1495 , G01N27/4175 , G01N33/0006 , F01N2550/02
摘要： A deteriorated condition detecting apparatus for an oxygen concentration sensor used in an air-fuel ratio feedback control for an internal combustion engine comprises a reference oxygen concentration sensor mounted in proximity to the oxygen concentration sensor used for the air-fuel ratio feedback control and a discriminator for comparing duty factors of output signals from those two sensors to determine a deteriorated condition of the oxygen sensor. The discriminator determines the deteriorated condition when the duty factor of the sensor under test deviates from the duty factor of the output signal of the reference sensor by a predetermined amount. It converts the outputs of the respective sensors to square wave signals and integrates one of the levels of the square wave signals to determine the duty factors, and differentially amplifies the integrated signal to produce a differential output signal, which is then compared with a predetermined level to determine whether there exists a deviation of the duty factor corresponding to the deteriorated condition.
摘要翻译：用于内燃机的空燃比反馈控制中使用的氧浓度传感器的劣化条件检测装置包括安装在用于空燃比反馈控制的氧浓度传感器附近的基准氧浓度传感器和鉴别器用于比较来自这两个传感器的输出信号的功率因数，以确定氧传感器的劣化状况。当测试传感器的占空因数偏离参考传感器的输出信号的占空比预定量时，鉴别器确定恶化条件。它将各个传感器的输出转换成方波信号，并且对方波信号的一个电平进行积分以确定占空因数，并差分放大积分信号以产生差分输出信号，然后将其与预定电平进行比较以确定是否存在与劣化条件相对应的占空比的偏差。

5. 发明授权

US4121546A Air-fuel ratio adjusting apparatus for an internal combustion engine 失效
标题翻译：用于内燃机的空燃比调节装置
公开(公告)号：US4121546A
公开(公告)日：1978-10-24
申请号：US723050
申请日：1976-09-13
申请人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
发明人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
IPC分类号： F02B1/04 , F02D41/14 , F02M23/04 , F02B3/08 , F01N3/08 , F02M7/12
CPC分类号： F02D41/1475 , F02D41/1482 , F02M23/04 , F02B1/04 , Y02T10/146
摘要： An air-fuel ratio adjusting apparatus for an internal combustion engine employing a gas sensor whose electric characteristic changes rapidly at near the stoichiometric air-fuel ratio so as to maintain the air-fuel ratio of mixture at any desired air-fuel ratio other than the stoichiometric one. A bypass valve is mounted in a bypass passage for supplying additional air to the portion of the carburetor downstream of its throttle valve. In response to the sensed signal from the gas sensor mounted in the exhaust pipe, the bypass valve is opened or closed to increase or decrease the amount of additional air. Taking advantage of the fact that there exists a delay of a definite time period between the time of generation of a sensed signal from the gas sensor and the time that the sensed signal produces an effect on the excess air factor of the exhaust gases, by causing the opening and closing speeds of the bypass valve to differ from each other, it is possible to maintain the air-fuel ratio of mixture constant within a wide range of air-fuel ratios.
摘要翻译：一种使用气体传感器的内燃机的空燃比调节装置，该气体传感器的电特性在理论空燃比附近迅速变化，以将混合气的空燃比保持在除化学计量。旁通阀安装在旁通通道中，用于向其节流阀下游的化油器部分提供额外的空气。响应于来自安装在排气管中的气体传感器的感测到的信号，旁通阀被打开或关闭以增加或减少附加空气的量。利用在气体传感器产生感测信号的时间与感测到的信号对废气的过量空气因子产生影响的时间之间存在一定时间段的延迟的事实，通过引起旁通阀的打开和关闭速度彼此不同，可以使空气 - 燃料比的宽范围内的混合气体的空燃比保持恒定。

6. 发明授权

US4084563A Additional air control device for an internal combustion engine 失效
标题翻译：用于内燃机的附加空气控制装置
公开(公告)号：US4084563A
公开(公告)日：1978-04-18
申请号：US740175
申请日：1976-11-09
申请人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
发明人： Tadashi Hattori , Hiroaki Yamaguchi , Takamichi Nakase
IPC分类号： F01N3/22 , F02D41/14 , F02D43/00 , F02M23/04 , F01N3/15 , F02B75/10 , F02M37/00
CPC分类号： F02D43/00 , F02D41/1482
摘要： An additional air control device for an internal combustion engine wherein an additional air supply to the engine is controlled by controlling the operation of a drive motor coupled to a control valve mounted in a bypass passage. The driving direction of the drive motor to open or close the control valve is controlled by a gas sensing signal representing the content of the exhaust gas and generated by a gas sensor, and the duty ratio between the drive time period .tau.a and the rest time period .tau.b of the drive motor is controlled depending on an intake air flow signal representing a delay time factor from an intake air flow meter. In deceleration operation of the engine, the duty ratio .tau.a/.tau.b is increased independently of the intake air flow signal by a deceleration signal produced by a deceleration detecting switch. The drive motor is thus controlled to drive in a skip movement fashion and to stop alternately with the duty ratio of .tau.a/.tau.b in an opening or closing direction of the control valve, thereby the air-fuel ratio is maintained at a constant value and the exhaust gas emission is controlled.
摘要翻译：一种用于内燃机的附加空气控制装置，其中通过控制联接到安装在旁路通道中的控制阀的驱动马达的操作来控制对发动机的附加空气供给。用于打开或关闭控制阀的驱动电动机的驱动方向由表示废气含量并由气体传感器产生的气体检测信号控制，并且驱动时间段τa与其余时间之间的占空比根据来自进气流量计的延迟时间因子的进气流量信号来控制驱动马达的周期τb。在发动机的减速操作中，通过减速检测开关产生的减速信号，占空比τa /τb独立于进气流量信号而增加。因此驱动电动机被控制为以跳动运动的方式驱动，并且以控制阀的打开或关闭方向上的τa / tau b的占空比交替停止，从而空燃比保持在恒定值排气排放受到控制。

7. 发明授权

US4136651A Additional air control apparatus 失效
标题翻译：附加空气控制装置
公开(公告)号：US4136651A
公开(公告)日：1979-01-30
申请号：US729871
申请日：1976-10-05
申请人： Tadashi Hattori , Takamichi Nakase , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Takamichi Nakase , Hiroaki Yamaguchi
IPC分类号： F01N3/22 , F02B75/10 , F02D41/14 , F02D41/18 , F02D41/24 , F02M23/04 , F02M7/00 , F02M3/00 , F02M13/04
CPC分类号： F02D41/1482 , F02M23/04 , Y02T10/146
摘要： An additional air supply control apparatus for an internal combustion engine including a bypass passage for supplying air additionally to the engine and a control valve provided in the bypass passage for controlling the amount of air-flow through the bypass passage. A gas sensor is mounted in an exhaust system of the engine for detecting changes in the air-fuel ratio and a control unit produces an intermittent control signal in accordance with a detection signal from the gas sensor. The control valve is driven by the control signal intermittently in a skip movement fashion.
摘要翻译：一种用于内燃机的附加空气供应控制装置，其包括用于向发动机附加空气的旁路通道和设置在旁路通道中的控制阀，用于控制通过旁路通道的空气流量。气体传感器安装在发动机的排气系统中，用于检测空燃比的变化，并且控制单元根据来自气体传感器的检测信号产生间歇控制信号。控制阀由跳动运动的方式间歇地由控制信号驱动。

8. 发明授权

US4075835A Additional air control device 失效
标题翻译：附加空气控制装置
公开(公告)号：US4075835A
公开(公告)日：1978-02-28
申请号：US740173
申请日：1976-11-09
申请人： Tadashi Hattori , Takamichi Nakase , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Takamichi Nakase , Hiroaki Yamaguchi
IPC分类号： F01N3/22 , F02B75/10 , F02D41/14 , F02D41/24 , F02M23/04
CPC分类号： F02D41/1482
摘要： In controlling an amount of intake air of an internal combustion engine, an error due to the delay time between the time at which the air-fuel ratio changes in the intake system of the engine and the time at which a gas sensor in the exhaust system of the engine senses the changes is compensated. At least two delay factor detectors, e.g., an engine speed sensor and a pressure sensor control the driving and stopping of a drive motor coupled to a control valve mounted in the additional air passage in the intake system to thereby adjust the amount of additional air supply.
摘要翻译：在控制内燃机的进气量时，由于发动机的进气系统中的空燃比变化的时间与排气系统中的气体传感器的时间之间的延迟时间引起的误差发动机感觉到变化得到补偿。至少两个延迟因子检测器，例如发动机速度传感器和压力传感器，其控制驱动电动机的驱动和停止，所述驱动电动机耦合到安装在进气系统中的附加空气通道中的控制阀，从而调节附加空气供应量。

9. 发明授权

US4164914A Air-fuel ratio controlling apparatus for an internal combustion engine 失效
标题翻译：用于内燃机的空燃比控制装置
公开(公告)号：US4164914A
公开(公告)日：1979-08-21
申请号：US783429
申请日：1977-03-31
申请人： Tadashi Hattori , Akira Takata , Tamotsu Fukuda , Takamichi Nakase
发明人： Tadashi Hattori , Akira Takata , Tamotsu Fukuda , Takamichi Nakase
IPC分类号： F02D35/00 , F02M23/04 , F02M7/00
CPC分类号： F02M23/04 , F02D35/003 , Y02T10/146
摘要： An apparatus for controlling the air-fuel ratio of an air-fuel mixture to be supplied into a combustion chamber of an internal combustion engine comprises a passage bypassing a carburetor and a throttle valve of the engine for supplying an additional air into the engine intake duct downstream of the throttle valve to dilute the air-fuel mixture to an air-fuel ratio most suited for the engine operation. An air valve is provided in the bypass passage to vary the air-flow cross-sectional area of the passage. The opening of the air valve is controlled mainly in accordance with the air-fuel ratio of the mixture as detected by an air-fuel ratio detector in the path of flow of engine exhaust gases. A variable orifice is provided in the bypass passage downstream of the air valve and defined by a valve seat and a needle valve operatively associated therewith to vary the opening area of the orifice. The needle valve is actuated by a pneumatic valve actuator which is responsive to variations in the engine manifold vacuum. The arrangement is such that the pressure difference across the air valve is kept substantially constant whereby the supply of the additional air is substantially in proportion to the engine intake air and free from influence by the engine manifold vacuum.
摘要翻译：用于控制供给到内燃机的燃烧室中的空气燃料混合物的空燃比的装置包括绕过化油器的通道和用于向发动机进气管道中供应附加空气的发动机的节气门在节流阀的下游，将空气 - 燃料混合物稀释到最适合发动机运转的空燃比。在旁通通道中设置有空气阀，以改变通道的气流横截面积。主要由发动机废气流动路径中的空燃比检测器检测出的混合气的空燃比主要控制空气阀的开度。在空气阀下游的旁通通道中设置可变孔口，并由阀座和与其可操作地相关联的针阀限定，以改变孔口的开口面积。针阀由气动阀致动器致动，该致动器响应发动机歧管真空度的变化。这种布置使得跨越空气阀的压力差保持基本恒定，由此附加空气的供应基本上与发动机进气成正比并且不受发动机歧管真空的影响。

10. 发明授权

US4020813A Air-to-fuel ratio control means for carbureter 失效
标题翻译：用于化油器的空燃比控制装置
公开(公告)号：US4020813A
公开(公告)日：1977-05-03
申请号：US476271
申请日：1974-06-04
申请人： Tadashi Hattori , Toshiharu Iwata , Takamichi Nakase
发明人： Tadashi Hattori , Toshiharu Iwata , Takamichi Nakase
IPC分类号： F02D35/00 , F02D41/14 , F02D43/00 , F02M23/04
CPC分类号： F02D41/1482 , F02D35/003 , F02D43/00 , F02M23/04 , Y02T10/146
摘要： An air-to-fuel ratio control means provided in a carbureter of an automobile, in which control means a control valve for controlling the rate of flow of compensating air or compensating fuel is provided. Also, a drive means is provided to fix the control valve at positions at which an optimum air-to-fuel ratio is obtained depending upon the engine operating conditions, namely at the time of cold starting, under low-load low-speed and high-load high-speed engine operating conditions.
摘要翻译：设置在汽车的化油器中的空燃比控制装置，其中控制装置提供用于控制补偿空气或补偿燃料的流量的控制阀。而且，提供一种驱动装置，用于将控制阀固定在根据发动机工作条件即冷启动时在低负载低速和高速下获得最佳空燃比的位置高速发动机运行条件。

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