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公开(公告)号：US4177787A
公开(公告)日：1979-12-11
申请号：US815832
申请日：1977-07-14
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。
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52.发明授权
公开(公告)号：US4077207A
公开(公告)日：1978-03-07
申请号：US740174
申请日：1976-11-09
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。
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公开(公告)号：US4438647A
公开(公告)日：1984-03-27
申请号：US337247
申请日：1982-01-05
CPC分类号： G01M15/08
摘要： An ignition range detector for an internal combustion engine is disclosed, in which at each combustion of the internal combustion engine, a pressure signal of a pressure sensor for detecting the pressure in a cylinder is integrated by a signal associated with the crank angle to produce an area S.sub.1 +S.sub.2 presenting the combustion state. At the same time, the pressure signal for a hypothetical case of misfire under the same condition is integrated to produce an area S.sub.1. It is decided whether the ratio (S.sub.1 +S.sub.2)/S.sub.1 is higher than a predetermined value .alpha. or not thereby to detect an ignition range always stably regardless of the operating conditions of the internal combustion engine including the load thereon.
摘要翻译： 公开了一种用于内燃机的点火距离检测器，其中在内燃机的每次燃烧时，用于检测气缸中的压力的压力传感器的压力信号通过与曲柄角相关联的信号积分，以产生 呈现燃烧状态的区域S1 + S2。 同时，在相同条件下，假设失火情况下的压力信号被积分以产生区域S1。 确定比率（S1 + S2）/ S1是否高于预定值α，从而能够始终稳定地检测点火范围，而不管包括其上的负载的内燃机的操作条件如何。
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公开(公告)号：US4424705A
公开(公告)日：1984-01-10
申请号：US335284
申请日：1981-12-28
申请人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
CPC分类号： G01H11/02 , G01L23/223
摘要： A knocking sensing apparatus for sensing a knocking taking place in an internal combustion engine. The apparatus includes a diaphragm adapted to operate in response to the pressure of cooling water circulated in the engine, magnetism generating device, magnetic circuit including the diaphragm, and a magnetic flux detecting device adapted to detect in a manner like alternating current the change in the magnetic flux in the magnetic circuit caused by the operation of the diaphragm.
摘要翻译： 一种用于感测在内燃机中发生爆震的爆震感测装置。 该装置包括适于响应于在发动机中循环的冷却水的压力而工作的隔膜，磁力发生装置，包括隔膜的磁路以及适于以类似交流电的方式检测的磁通量检测装置， 在磁路中的磁通量由隔膜的操作引起。
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公开(公告)号：US4357919A
公开(公告)日：1982-11-09
申请号：US178281
申请日：1980-08-15
CPC分类号： F02P5/1526 , F02P11/06 , Y02T10/46
摘要： An ignition timing control apparatus for internal combustion engines is constructed to retard or advance the spark time of an engine when a knocking detector in the ignition timing control apparatus detects the occurrence or non-occurrence of knocking in the engine, respectively, and to retard the spark time by a predetermined angular value irrespective of an output signal from the knocking detector when a failure occurring in the knocking detector has been detected. Further, the ignition timing control apparatus may comprise alarm means which is actuated when a failure occurring in the knocking detector has been detected.
摘要翻译： 用于内燃机的点火正时控制装置被构造成当点火正时控制装置中的爆震检测器分别检测发动机的发生或不发生时延迟或提前发动机的火花时间，并且延迟 当检测到在爆震检测器中发生的故障时，不管来自爆震检测器的输出信号如何，预定的角度值的火花时间为预定角度值。 此外，点火正时控制装置可以包括在检测到爆震检测器中发生故障时被致动的报警装置。
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公开(公告)号：US4313341A
公开(公告)日：1982-02-02
申请号：US100325
申请日：1979-12-05
CPC分类号： G01L1/16 , F02P5/1455 , F16B31/02 , G01L3/1478 , G01L5/243 , F02B2075/027 , Y02T10/46
摘要： A torque detecting system for the internal combustion engines is disclosed. Pressure detecting device is arranged between the engine body and the engine support for detecting the pressure generated between the engine body and the engine support. An electrical circuit generates a torque detection signal in response to a detection signal produced from the pressure detecting device.
摘要翻译： 公开了一种用于内燃机的转矩检测系统。 压力检测装置设置在发动机主体和发动机支架之间，用于检测发动机主体和发动机支架之间产生的压力。 电路响应于从压力检测装置产生的检测信号而产生转矩检测信号。
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公开(公告)号：US4230078A
公开(公告)日：1980-10-28
申请号：US936395
申请日：1978-08-24
申请人： Tadashi Hattori , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Hiroaki Yamaguchi
CPC分类号： F02P3/0456
摘要： An ignition control apparatus for an internal combustion engine is disclosed in which the ignition energy for igniting by means of a spark plug the air-fuel mixture supplied to the internal combustion engine is controlled in accordance with the flow velocity of the air-fuel mixture flowing in the neighborhood of the spark plug. An ignition coil for supplying a spark ignition voltage to the spark plug is energized by a power supply and de-energized at the desired timing of spark generation in accordance with the operating conditions of the internal combustion engine. The rotational speed of the engine representing the flow velocity of the mixture is detected and on the basis of this detected rotational speed, the duration of energization of the ignition coil is variably controlled.
摘要翻译： 公开了一种用于内燃机的点火控制装置，其中根据空气 - 燃料混合物流动的流速控制用于通过火花塞点燃的点燃能量供应到内燃机的空气 - 燃料混合物 在火花塞附近。 用于向火花塞提供火花点火电压的点火线圈根据内燃机的工作条件由电源供电并在期望的火花发生定时断电。 检测表示混合物的流速的发动机的转速，根据该检测的转速，可变地控制点火线圈的通电持续时间。
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公开(公告)号：US4121548A
公开(公告)日：1978-10-24
申请号：US814122
申请日：1977-07-08
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。
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公开(公告)号：US4121546A
公开(公告)日：1978-10-24
申请号：US723050
申请日：1976-09-13
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。
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公开(公告)号：US4084563A
公开(公告)日：1978-04-18
申请号：US740175
申请日：1976-11-09
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。
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