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21.发明授权Stoichiometric and enrichment mixture control during different split engine modes 失效不同分体式发动机模式下的化学计量和浓缩混合物控制
公开(公告)号：US4245471A
公开(公告)日：1981-01-20
申请号：US48156
申请日：1979-06-13
IPC分类号： F02D41/02 , F01N3/20 , F01N3/22 , F01N9/00 , F01N13/02 , F02D17/02 , F02D21/08 , F02D41/00 , F02D41/14 , F02D41/36 , F01N3/15 , F02D17/00
CPC分类号： F02D17/02 , F01N13/009 , F01N3/20 , F01N3/22 , F01N9/00 , F02D41/0087 , F01N2430/02 , Y02T10/47
摘要： A control system for a multi-cylinder internal combustion engine comprises a split engine control unit for operating the engine on partial cylinders when reduced engine power can adequately operate the vehicle, and first and second upstream exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a common downstream exhaust conduit is connected for emitting the gases to the atmosphere. A first catalytic converter is disposed in the second exhaust conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second catalytic converter is disposed in the common downstream conduit to be exposed to the stream of gases exhausted from the first group cylinders directed through the first conduit and to the gases passed through the first catalytic converter. An exhaust gas sensor is provided in the common exhaust conduit upstream of the downstream converter. A feedback control circuit is responsive to signals from the gas sensor to effect closed loop mixture control in which the air-fuel mixture supplied to all the cylinders during the full cylinder mode is controlled to the stoichiometric point so that both converters each promote simultaneous reduction of the NOx component and oxidation of the HC and CO components. A feedback control disabling circuit is provided which is effective during the partial cylinder mode for controlling the air-fuel ratio to the rich side of the stoichiometric point to promote reduction of the NOx component in the first converter and oxidation of the HC and CO components in the second converter.
摘要翻译： 一种用于多气缸内燃机的控制系统，包括用于在减少的发动机功率能够充分地操作车辆时将发动机运行在部分气缸上的分体式发动机控制单元，以及用于引导来自第一组和第二组的废气的第一和第二上游排气导管 气缸分别连接到共同的下游排气导管连接到公共接头，以将气体排放到大气中。 第一催化转化器设置在第二排气管道中以暴露于从第二组气缸排出的气体，该气体始终被激活，并且第二催化转化器设置在公共下游管道中以暴露于 从第一组气缸排出的气体通过第一导管和通过第一催化转化器的气体排出。 排气传感器设置在下游转换器上游的公共排气管道中。 反馈控制电路响应于来自气体传感器的信号来实现闭环混合控制，其中在全气缸模式期间供应到所有气缸的空气 - 燃料混合物被控制到化学计量点，使得两个转化器均可同时减少 HC和CO组分的NOx成分和氧化。 提供反馈控制禁止电路，其在部分气缸模式期间有效，用于控制到化学计量点的浓侧的空燃比，以促进第一转化器中的NOx组分的降低和HC和CO组分的氧化 第二个转换器。
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22.发明授权Split engine operation with means for discriminating false indication of engine load reduction 失效用于区分发动机负载降低的虚假指示的装置分离发动机运转
公开(公告)号：US4224920A
公开(公告)日：1980-09-30
申请号：US8738
申请日：1979-02-02
CPC分类号： F02D17/02 , F02D41/0087
摘要： A split engine control system includes a load level detector for generating a first signal in response to a relatively high engine load and a second signal in response to a relatively low engine load. A certain of the cylinders of an internal combustion engine is deactivated in response to the second signal to operate the engine on partial cylinders and activated in response to the first signal to permit the engine to operate on full cylinders. A discriminating circuit is connected to the load level detector to disable the second signal when the duration of the latter is smaller than a preset time interval which corresponds to the duration of a false indication of engine load reduction which might occur in response to gear changes during full cylinder operation.
摘要翻译： 分体式发动机控制系统包括负载电平检测器，用于响应于相对较高的发动机负载产生第一信号，响应于较低的发动机负载产生第二信号。 内燃机的一些气缸响应于第二信号被停用，以使发动机在部分气缸上操作并且响应于第一信号被激活以允许发动机在全气缸上操作。 识别电路连接到负载电平检测器以在第二信号的持续时间小于预设的时间间隔时禁用第二信号，该预设时间间隔对应于可能响应于发生变速时发生的发动机负载减小的假指示的持续时间 全缸操作。
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公开(公告)号：US4217795A
公开(公告)日：1980-08-19
申请号：US863140
申请日：1977-12-22
CPC分类号： F16H59/14 , F16H59/74 , F16H59/76 , Y10S477/902 , Y10T477/675 , Y10T477/693973
摘要： In an automatic power transmission system for a multicylinder internal combustion engine wherein the intake vacuum is not available as a true indication of engine load, a detection system for detecting the level of engine load includes an electrical actuator responsive to a signal which faithfully represents the engine load to vary the pressure of fluid in the automatic power transmission system. One embodiment of the invention includes an intake air sensor, an engine speed sensor and a division circuit responsive to the outputs from both sensors to generate a signal representing the quantity of air inducted per unit time to represent the true indication of the engine load free from the effect of exhaust gas recirculation or other factors influencing the intake vacuum.
摘要翻译： 在用于多缸内燃机的自动动力传动系统中，其中进气真空不能用作发动机负载的真实指示，用于检测发动机负荷水平的检测系统包括响应于忠实地代表发动机的信号的电致动器 负载以改变自动输电系统中的流体压力。 本发明的一个实施例包括进气测量传感器，发动机速度传感器和分配电路，其响应于两个传感器的输出，以产生表示每单位时间引入的空气量的信号，以表示没有发动机负载的真实指示 排气再循环或影响吸入真空的其他因素的影响。
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公开(公告)号：US4207856A
公开(公告)日：1980-06-17
申请号：US922348
申请日：1978-07-06
CPC分类号： F02D43/00 , F02D11/06 , F02D17/02 , F02D41/0087 , F02D9/02 , F02D2009/0255 , F02D2009/0257 , F02D2009/0262 , F02D2009/0272 , F02D2009/0279 , F02D2250/21 , Y02T10/42
摘要： An intake air control system of a fuel-injection internal combustion engine which is operable in a part-cylinder mode. With the system, there is provided an additional increase in the effective air flow area through an air induction system leading to the engine cylinders in response to a signal representing the part-cylinder mode operation, so that with the same depression degree of an accelerator pedal a sufficient amount of air will be fed to the selected ones of the engine cylinders after the engine operation has switched from full-cylinder mode to part-cylinder mode.
摘要翻译： 一种能够以部分气缸模式操作的燃料喷射内燃机的进气控制系统。 通过该系统，通过响应于表示部分气缸模式操作的信号通过引擎缸的空气感应系统提供有效气流面积的额外增加，使得具有相同的加速踏板的压下程度 在发动机操作从全气缸模式切换到部分气缸模式之后，足够的空气将被供给到所选择的发动机气缸。
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公开(公告)号：US4385600A
公开(公告)日：1983-05-31
申请号：US140665
申请日：1980-04-15
CPC分类号： F02D17/02 , F02D41/0087
摘要： An internal combustion engine is disclosed which includes first and second cylinder units each having at least one cylinder, and a control unit responsive to engine load for rendering the first and second cylinder units active at high load conditions and rendering the second cylinder unit inactive when the engine load is below a predetermined value. A rapid acceleration detector is provided which is responsive to rapid engine acceleration for causing the control unit to render the first and second cylinder units active regardless of the engine load.
摘要翻译： 公开了一种内燃机，其包括每个具有至少一个气缸的第一和第二气缸单元和响应于发动机负载的控制单元，用于使第一和第二气缸单元在高负载条件下起作用，并且当第二气缸单元在 发动机负荷低于预定值。 提供了一种快速加速度检测器，其响应于快速的发动机加速度，以使得控制单元使第一和第二气缸单元活动，而与发动机负载无关。
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公开(公告)号：US4379387A
公开(公告)日：1983-04-12
申请号：US96460
申请日：1979-11-21
申请人： Haruhiko Iizuka , Fukashi Sugasawa
发明人： Haruhiko Iizuka , Fukashi Sugasawa
摘要： Disclosed is a cylinder control system for a multicylinder internal combustion engine equipped with an exhaust gas purification device. This system has a valve control circuit which controls the number of fuel injection valves opened and closed, according to the load conditions of the engine. A detector is provided for determining the temperature in the exhaust gas purification device to generate a signal indicative of the temperature. A comparator compares the temperature signal with a reference value to generate, for the valve control circuit, a second signal indicative of whether the determined temperature is higher than a predetermined value. When the determined temperature is higher than the predetermined value, the second signal causes the valve control circuit to close the fuel injection valve or valves which thus far have been opened.
摘要翻译： 公开了一种配备有排气净化装置的多缸内燃机的气缸控制系统。 该系统具有根据发动机的负载条件控制打开和关闭的燃料喷射阀的数量的阀门控制电路。 提供了一种用于确定废气净化装置中的温度以产生指示温度的信号的检测器。 比较器将温度信号与参考值进行比较，以产生用于阀控制电路的指示所确定的温度是否高于预定值的第二信号。 当确定的温度高于预定值时，第二信号使阀门控制电路关闭迄今已经打开的燃料喷射阀或阀。
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公开(公告)号：US4365597A
公开(公告)日：1982-12-28
申请号：US206141
申请日：1980-11-12
申请人： Haruhiko Iizuka , Fukashi Sugasawa
发明人： Haruhiko Iizuka , Fukashi Sugasawa
摘要： An internal combustion engine is disclosed which includes first and second cylinder units, an intake manifold divided into first and second intake passages leading to the first and second cylinder units, respectively, an exhaust manifold divided into first and second exhaust passages leading from the first and second cylinder units, respectively, and control means for providing a control signal to disable the second cylinder unit when the engine load is below a predetermined value. The second intake passage has therein a first normally open valve adapted to close in response to the control signal. The second exhaust passage has therein a second normally open valve adapted to close in response to the control signal. Pressure control means is provided which is responsive to the control signal for supplying a predetermined pressure not less than atmospheric pressure to the second intake passage, thereby maintaining the second intake passage at the predetermined pressure.
摘要翻译： 公开了一种内燃机，其包括第一和第二气缸单元，分别被分成通向第一和第二气缸单元的第一和第二进气通道的进气歧管，分别由第一和第二气缸单元引导的第一和第二排气通道的排气歧管， 以及用于当发动机负载低于预定值时提供控制信号以禁用第二气缸单元的控制装置。 第二进气通道在其中具有适于响应于控制信号而关闭的第一常开阀。 第二排气通道具有适于响应于控制信号而关闭的第二常开阀。 提供压力控制装置，其响应于用于向第二进气通道提供不低于大气压的预定压力的控制信号，从而将第二进气通道保持在预定压力。
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公开(公告)号：US4357924A
公开(公告)日：1982-11-09
申请号：US196027
申请日：1980-10-10
申请人： Fukashi Sugasawa , Haruhiko Iizuka
发明人： Fukashi Sugasawa , Haruhiko Iizuka
IPC分类号： F02D41/12 , F02D17/02 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/10 , F02D41/36 , F02D13/06 , F02B3/00
CPC分类号： F02D41/0087
摘要： A fuel injection control system is disclosed for an internal combustion engine having fuel injectors. The system comprises fuel cut-off means operable for rendering some of the fuel injectors inoperative only when the engine speed exceeds a first predetermined value during engine deceleration and for rendering the remaining fuel injectors inoperative only when the engine speed exceeds a second predetermined value higher than the first predetermined value during engine deceleration. Control means is provided for increasing the second predetermined value when rapid engine deceleration occurs.
摘要翻译： 公开了一种具有燃料喷射器的内燃机的燃料喷射控制系统。 该系统包括燃料切断装置，其可操作以仅在发动机减速期间当发动机转速超过第一预定值时使部分燃料喷射器不起作用，并且仅当发动机转速超过第2预定值时才使剩余燃料喷射器不起作用 发动机减速时的第一个预定值。 提供控制装置，用于当发生快速的发动机减速时增加第二预定值。
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公开(公告)号：US4337740A
公开(公告)日：1982-07-06
申请号：US160564
申请日：1980-06-18
CPC分类号： F02D43/00 , F02D17/02 , F02D41/0087
摘要： An internal combustion engine is disclosed which includes active and inactive cylinders, a load detector adapted to provide a low load indicative signal when the engine load is below a predetermined value, first means responsive to the low load indicative signal for cutting off the flow of air to the inactive cylinders, and second means for supplying a controlled amount of fuel into the active and inactive cylinders so as to achieve a somewhat lean air-fuel mixture therein. The second means is responsive to the low load indicative signal for cutting off the supply of fuel to the inactive cylinders and increasing the amount of fuel supplied to the active cylinders so as to achieve a somewhat rich air-fuel mixture therein. Third means is provided for monitoring the oxygen content of the exhaust from the engine to control the second means so that the fuel supplied to the engine is correct to maintain the stoichiometric air/fuel ratio.
摘要翻译： 公开了一种内燃机，其包括主动和非活动气缸，负载检测器，其适于在发动机负载低于预定值时提供低负荷指示信号，第一装置响应于低负荷指示信号以切断空气流 以及第二装置，用于将受控量的燃料供应到主动和非活动气缸中，以便在其中实现稍微偏冷的空气 - 燃料混合物。 第二装置响应于低负荷指示信号，用于切断对非活性气缸的燃料供应，并且增加供应到活动气缸的燃料量，以便在其中实现有些浓的空气 - 燃料混合物。 提供第三装置用于监测来自发动机的排气的氧含量以控制第二装置，使得供应到发动机的燃料是正确的，以维持理论空燃比。
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公开(公告)号：US4305365A
公开(公告)日：1981-12-15
申请号：US81920
申请日：1979-10-04
CPC分类号： F02D41/123
摘要： An electronic controlled fuel injection system is disclosed for use in an internal combustion engine including a plurality of cylinders each fitted with a fuel injection valve. The system comprises a fuel injection control circuit timed to engine rotation for providing a drive pulse signal to the fuel injection valves. A deceleration detecting circuit detects deceleration of the engine in accordance with the positions of the associated throttle valve and foot brake. A coupling circuit is responsive to engine rotational speed for allowing or impeding the passage of the drive pulse signal to the fuel injection valves during deceleration.
摘要翻译： 公开了一种用于内燃机的电子控制燃料喷射系统，所述内燃机包括多个气缸，每个气缸均装有燃料喷射阀。 该系统包括定时到发动机旋转的燃料喷射控制电路，用于向燃料喷射阀提供驱动脉冲信号。 减速检测电路根据相关的节气门和脚制动器的位置检测发动机的减速。 耦合电路响应于发动机转速，以允许或阻止驱动脉冲信号在减速期间通向燃料喷射阀。
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