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公开(公告)号：US4572149A
公开(公告)日：1986-02-25
申请号：US601535
申请日：1984-04-18
CPC分类号： F02M23/08 , F02M23/04 , F02M7/133 , Y02T10/146
摘要： An air/fuel ratio control system for an internal combustion engine equipped with a three-way catalytic converter, comprises first and second fluid supply passages for supplying, for example, a secondary air or a supplemental fuel to the engine, and a flow control valve disposed in the first fluid supply passage for varying the amount of the secondary air or the supplemental fuel in accordance with a detected condition of the air/fuel ratio. An open/close valve is disposed in the second fluid supply passage for opening and closing the communication through the second fluid supply passage without regard to the air/fuel ratio signal and with a predetermined period which is shorter than a normal period of turning over of the air/fuel signal, thereby reducing the deviation of the actual air/fuel ratio from a central value of the air/fuel ratio control, to improve the efficiency of purification of emission by means of the three-way catalytic converter.
摘要翻译： 一种配有三元催化转化器的内燃机的空燃比控制系统，包括用于向发动机供应例如二次空气或补充燃料的第一和第二流体供应通道，以及流量控制阀 设置在第一流体供给通道中，用于根据检测到的空气/燃料比的变化来改变二次空气或补充燃料的量。 在第二流体供给通道中设置有开/关阀，用于打开和关闭通过第二流体供给通道的连通，而不考虑空/燃比信号，并且具有比正常翻转周期短的预定时段 空气/燃料信号，从而减少实际空气/燃料比与空气/燃料比控制的中心值的偏差，以通过三元催化转化器提高排放净化效率。
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2.发明授权
公开(公告)号：US4558682A
公开(公告)日：1985-12-17
申请号：US587743
申请日：1984-03-08
CPC分类号： F02M23/08 , F02M23/04 , Y02T10/146
摘要： An air intake side secondary air supply system for an internal combustion engine provided with an air/fuel ratio feedback control operation, comprises a pressure responsive air control valve which controls the communication through a secondary air supply passage, i.e., the amount of the air intake side secondary air supplied to the engine. A first control pressure for opening the air control valve and a second control pressure for closing the air control valve is alternately supplied to the air control valve in accordance with a detected state of the air/fuel ratio of the engine. The system is further provided with a device for respectively controlling the speed of the supply of the first and second control pressure, which in turn causes the variation of the speed of the air/fuel ratio control.
摘要翻译： 具有空燃比反馈控制动作的内燃机的进气侧二次空气供给系统具有：压力响应空气调节阀，其控制通过二次空气供给通路的连通，即进气量 供给发动机的二次侧空气。 根据检测到的发动机的空燃比状况，将空气控制阀的第一控制压力和用于关闭空气控制阀的第二控制压力交替地供给到空气调节阀。 该系统还设置有用于分别控制第一和第二控制压力的供给速度的装置，这进而导致空气/燃料比控制的速度的变化。
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公开(公告)号：US4864977A
公开(公告)日：1989-09-12
申请号：US212918
申请日：1988-06-29
申请人： Shumpei Hasegawa
发明人： Shumpei Hasegawa
CPC分类号： F02D15/02 , F02B75/044
摘要： A compression ratio-changing device for an internal combustion engine, includes an oil passageway formed through a connecting rod of the engine and connected to a hydraulic oil source. A combustion chamber volume-changing device is provided in the piston and operable by means of hydraulic pressure supplied from the hydraulic oil source through the oil passageway for changing the volume of the combustion chamber and hence changing the compression ratio of the engine. A hydraulic pressure control valve is arranged in the connecting rod for controlling the supply of the hydraulic pressure to the combustion chamber volume-changing device. A driving device is provided at a cylinder block of the engine for driving the hydraulic pressure control valve to cause the combustion chamber volume-changing device to change the volume of the combustion chamber.
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公开(公告)号：US4688532A
公开(公告)日：1987-08-25
申请号：US738722
申请日：1985-05-29
申请人： Shumpei Hasegawa
发明人： Shumpei Hasegawa
CPC分类号： F02B31/00 , F02F1/4228 , F02B2031/006 , F02B2275/14 , F02B3/06 , Y02T10/123 , Y02T10/146
摘要： An intake system for a direct fuel injection diesel engine is disclosed which has a cylinder block with a cylinder slidingly receiving a piston. A cylinder head is mounted on the cylinder block, and a fuel injector is adapted to directly inject fuel into a combustion chamber formed between the lower side of the cylinder head and the upper side of the piston, wherein the cylinder head has first and second intake passages which are independent of each other and which are adapted to introduce air into the combustion chamber. The first intake passage is oriented substantially tangentially to the combustion chamber and substantially orthogonally to the axis of the cylinder, and has a helical end portion opening into the combustion chamber to form a swirl of air flowing therethrough. The second intake passage is oriented such that the end portion thereof, adjacent the combustion chamber, is closer to the central axis of the cylinder than the end portion of the first intake passage adjacent the combustion chamber. The second intake passage is provided with an intake controller which prevents air from flowing in the second intake passage at low engine speeds but allows air to flow in the second intake passage at high engine speeds.
摘要翻译： 公开了一种用于直接燃料喷射柴油发动机的进气系统，其具有气缸体，气缸滑动地容纳活塞。 气缸盖安装在气缸体上，并且燃料喷射器适于将燃料直接喷射到形成在气缸盖的下侧和活塞的上侧之间的燃烧室中，其中气缸盖具有第一和第二进气口 彼此独立并且适于将空气引入燃烧室的通道。 第一进气通道基本上切向于燃烧室并且基本上与气缸的轴线正交地定向，并且具有通向燃烧室的螺旋端部，以形成流过其中的空气的漩涡。 第二进气通道被定向为使得其邻近燃烧室的端部比邻近燃烧室的第一进气通道的端部更靠近气缸的中心轴线。 第二进气通道设置有进气控制器，其防止空气在低发动机转速下在第二进气通道中流动，但允许空气以高发动机转速在第二进气通道中流动。
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5.发明授权
公开(公告)号：US4527521A
公开(公告)日：1985-07-09
申请号：US502082
申请日：1983-06-08
申请人： Shumpei Hasegawa , Noriyuki Kishi
发明人： Shumpei Hasegawa , Noriyuki Kishi
CPC分类号： F02D41/126
摘要： A method for controlling the quantity of fuel being supplied to an internal combustion engine having a power transmission means for transmitting engine torque to vehicle wheels. The fuel quantity is controlled to a required value after termination of a fuel cut operation which is effected at deceleration of the engine, by increasing a quantity of fuel set at least as a function of intake pipe pressure by an increment which is set in synchronism with generation of pulses of a predetermined control signal. The increase of the fuel quantity is effected for a period of time after a transition of the operative state of the engine from the fuel cut operation to a normal operation wherein fuel supply is effected has been detected and before a predetermined number of pulses of the above control signal generated are generated, so long as the power transmission means remains in a disengaged state. Preferably, the above increase of the fuel quantity is effected only when the engine speed is lower than predetermined rpm. Further, the increase of the fuel quantity is prohibited while the power transmission means remains in an engaged state. Instead, while the power transmission means is in an engaged state, the fuel quantity is determined as a function of a value of intake pipe pressure which is set by subtracting a value dependent upon the engine speed from a detected value of intake pipe absolute pressure, until all the engine cylinders are supplied with fuel after the transition to the normal operation of the engine has been detected.
摘要翻译： 一种用于控制供给具有用于将发动机扭矩传递到车轮的动力传递装置的内燃机的燃料量的方法。 燃料消耗量在燃料切断操作终止后被控制为在发动机的减速下实现的所需值，通过将至少与进气管压力的函数相加的燃料量增加设定为与 产生预定控制信号的脉冲。 燃料量的增加在发动机的运转状态从燃料切断运转转变为已经检测出燃料供给的正常运转之后的时间段内进行，并且在上述的预定数量的脉冲之前 只要动力传递装置保持分离状态，就产生控制信号。 优选地，仅当发动机转速低于预定转速时才能实现上述燃料量的增加。 此外，在动力传递装置保持接合状态的同时禁止燃料量的增加。 而是在动力传递装置处于接合状态的同时，根据进气管绝对压力的检测值减去取决于发动机转速的值来设定进气管压力的值的函数， 直到已经检测到发动机正常运转的转变之后所有发动机气缸都被供给燃料。
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6.发明授权Fuel injection control method for a multi-cylinder internal combustion engine, having a fail safe function for abnormality in cylinder-discriminating means 失效用于多缸内燃机的燃料喷射控制方法，具有气缸鉴别装置中的异常故障保护功能
公开(公告)号：US4476830A
公开(公告)日：1984-10-16
申请号：US521246
申请日：1983-08-08
申请人： Shumpei Hasegawa , Shigeo Umesaki
发明人： Shumpei Hasegawa , Shigeo Umesaki
CPC分类号： F02D41/36 , F02D41/222 , F02P15/008 , F02P7/077 , Y02T10/44
摘要： A fuel injection control method for injecting fuel into a plurality of cylinders of an internal combustion engine in predetermined sequence starting from a fuel injection into a particular one of the cylinders, in synchronism with generation of pulses from crank angle position-detecting means indicative of predetermined crank angle positions of the engine, wherein when one of the cylinders which corresponds to a first pulse from the crank angle position-detecting means generated immediately after generation of a pulse from cylinder-discriminating means indicative of the above particular cylinder is other from the particular cylinder, the sequence of fuel injections into the cylinders is changed so as to effect a first fuel injection into the above particular cylinder immediately after the generation of the above pulse from the cylinder-discriminating means and then effect fuel injections into the other cylinders in the above predetermined sequence. The method is adapted to perform a fail safe function in the event of occurrence of an abnormality in the cylinder-discriminating means. The number of times of the above changing of the fuel injection sequence is counted up to a predetermined value, the cylinder-discriminating means is regarded as abnormal. Then, injection of fuel into the cylinders is effected in the above predetermined sequence in synchronism with pulses from the crank angle position-detecting means alone, irrespective of generation of subsequent pulses from the cylinder-discriminating means.
摘要翻译： 一种燃料喷射控制方法，用于从指示预定的曲柄角位置检测装置的脉冲的产生同步地将燃料以预定顺序从燃料喷射到特定的一个气缸中，将燃料喷射到内燃机的多个气缸中 发动机的曲柄角位置，其中当从表示上述特定气缸的气缸鉴别装置产生脉冲之后立即产生的来自曲轴角位置检测装置的第一脉冲的一个气缸中的一个是特定的 气缸中的燃料喷射顺序发生变化，从而在从气缸鉴别装置产生上述脉冲之后立即对第一个燃料喷射到上述特定的气缸中，然后在其中的燃料喷射 超过预定顺序。 该方法适于在气缸识别装置发生异常的情况下执行故障安全功能。 燃料喷射顺序的上述变化次数被计数到预定值，气缸鉴别装置被认为是异常的。 然后，不管来自气缸识别装置的后续脉冲的产生如何，以与上述预定顺序同时进行的燃料喷射到气缸中，与来自曲柄角位置检测装置的脉冲同步进行。
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7.发明授权
公开(公告)号：US4461263A
公开(公告)日：1984-07-24
申请号：US442578
申请日：1982-11-18
申请人： Shumpei Hasegawa
发明人： Shumpei Hasegawa
CPC分类号： F02D41/005 , F02D41/2422 , F02D43/00 , F02B1/04 , Y02T10/47
摘要： An electronic fuel injection control system for an internal combustion engine, includes means for correcting the valve opening of the exhaust gas recirculation valve by the use of a correction coefficient so as to maintain the recirculating quantity of exhaust gases at a constant ratio with respect to the total intake air quantity, irrespective of changes in the ambient atmospheric pressure, and means for correcting the injection period for fuel being supplied to the engine as a function of atmospheric absolute pressure and intake pipe absolute pressure, whereby the air/fuel ratio of the mixture is maintained at an optimum value against changes in the atmospheric pressure, even when exhaust gas recirculation is effected.
摘要翻译： 一种用于内燃机的电子燃料喷射控制系统，包括通过使用校正系数来校正废气再循环阀的阀门开度的装置，以便使废气的再循环量相对于 总的进气量，不管环境大气压力的变化，以及用于校正作为大气绝对压力和进气管绝对压力的函数的向发动机供给的燃料的喷射周期的装置，由此混合物的空气/燃料比 即使在进行排气再循环时也能保持在大气压变化的最佳值。
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8.发明授权Flow rate control system for fluid being supplied to an internal combustion engine, having initial position setting function for flow rate control valve actuator 失效用于向内燃机供给流体的流量控制系统，具有用于流量控制阀致动器的初始位置设定功能
公开(公告)号：US4380985A
公开(公告)日：1983-04-26
申请号：US281118
申请日：1981-07-07
申请人： Kazuo Otsuka , Shin Narasaka , Shumpei Hasegawa
发明人： Kazuo Otsuka , Shin Narasaka , Shumpei Hasegawa
CPC分类号： F02D41/005 , F02D41/0002 , F02D41/062 , Y02T10/42 , Y02T10/47
摘要： A system for control of the flow rate of a fluid being supplied to an internal combustion engine. The system includes a flow rate control valve for controlling the flow rate of a fluid being supplied to the engine, a pulse motor for driving the flow rate control valve, position detecting means for detecting the position of the flow rate control valve with respect to a reference position to produce two different levels of output, depending upon a detected valve position, and an electrical circuit responsive to the output of the position detecting means to drive the pulse motor. At the start of the engine, the electrical circuit is operable to drive the pulse motor in directions as a function of the output of the position detecting means, stopping same upon a certain change in the level of the above output, which corresponds to the reference position and hence setting it to a predetermined position preset as a function of parameters of the operating condition of the engine. The system is also provided with a function of monitoring the actual pulse motor position as well as a fail safe diagnosis function for the position detecting means and its related parts.
摘要翻译： 一种用于控制供给内燃机的流体的流量的系统。 该系统包括用于控制供给发动机的流体的流量的流量控制阀，用于驱动流量控制阀的脉冲电机，位置检测装置，用于检测流量控制阀相对于 根据检测到的阀位置产生两个不同输出水平的参考位置，以及响应于位置检测装置的输出来驱动脉冲电机的电路。 在发动机开始时，电路可操作地驱动脉冲电动机作为位置检测装置的输出的方向，在上述输出的电平的一定变化上停止，这对应于参考 并且因此将其设置为根据发动机的操作条件的参数预设的预定位置。 该系统还具有监视实际脉冲电机位置以及位置检测装置及其相关部件的故障安全诊断功能的功能。
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9.发明授权Air/fuel ratio control system for internal combustion engines, having air/fuel control function at engine deceleration 失效用于内燃机的空燃比控制系统，具有发动机减速时的空气/燃料控制功能
公开(公告)号：US4367713A
公开(公告)日：1983-01-11
申请号：US282416
申请日：1981-07-13
申请人： Kazuo Otsuka , Shin Narasaka , Shumpei Hasegawa
发明人： Kazuo Otsuka , Shin Narasaka , Shumpei Hasegawa
CPC分类号： F02D41/12
摘要： An air/fuel ratio control system for feedback control of the air/fuel ratio of a mixture being supplied to an internal combustion engine is provided which comprises an absolute pressure sensor for detecting the absolute pressure in the intake pipe of the engine, and means operable to interrupt the air/fuel feedback control operation and immediately move an actuator for driving an air/fuel ratio control valve to a predetermined position and hold it there when the absolute pressure in the intake pipe, detected by the absolute pressure sensor is lower than a predetermined value at engine deceleration. This arrangement can ensure best driveability and best exhaust gas emission characteristics of the engine at engine deceleration.
摘要翻译： 提供了一种用于反馈控制供给内燃机的混合物的空燃比的空燃比控制系统，其包括用于检测发动机的进气管中的绝对压力的绝对压力传感器，以及可操作的装置 以中断空气/燃料反馈控制操作，并且当绝对压力传感器检测到的进气管中的绝对压力低于一个空气/燃料反馈控制操作时，立即将用于驱动空气/燃料比控制阀的致动器移动到预定位置并将其保持在那里 发动机减速时的预定值。 这种布置可以确保在发动机减速时发动机的最佳驾驶性能和最佳废气排放特性。
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10.发明授权
公开(公告)号：US4364359A
公开(公告)日：1982-12-21
申请号：US290847
申请日：1981-08-07
申请人： Kazuo Otsuka , Shin Narasaka , Shumpei Hasegawa
发明人： Kazuo Otsuka , Shin Narasaka , Shumpei Hasegawa
CPC分类号： F02G3/00 , F02D41/266
摘要： A control system for use with an internal combustion engine, which includes a timer for producing a trouble indicative signal when there is continued over a predetermined period of time a concurrence of a first signal produced when the pressure in the intake pipe of the engine is lower than a first predetermined value and a second signal produced when the engine speed is lower than a second predetermined value. The first and second predetermined values are set such that they are incompatible with each other during normal operation of the engine. The control system includes an air/fuel ratio control system which is provided with means responsive to the above trouble-indicative signal to carry out at least one of actions of moving an air/fuel ratio control valve actuator to a predetermined position and holding the same thereat, giving the alarm and memorizing and displaying of a corresponding failure code.
摘要翻译： 一种与内燃机一起使用的控制系统，其包括当在预定时间段内持续发生当发动机的进气管中的压力较低时产生的第一信号的同时产生故障指示信号的定时器 比第一预定值和当发动机速度低于第二预定值时产生的第二信号。 第一和第二预定值被设置为使得它们在发动机的正常操作期间彼此不兼容。 控制系统包括一个空/燃比控制系统，该系统具有响应于上述故障指示信号的装置，以执行将空/燃比控制阀致动器移动到预定位置并保持其的动作中的至少一个 在那里，给出警报并记忆和显示相应的故障代码。
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