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公开(公告)号：US4249374A
公开(公告)日：1981-02-10
申请号：US2632
申请日：1979-01-11
IPC分类号： F02P19/02 , F02D17/02 , F02D21/08 , F02D41/00 , F02D41/36 , F02M25/07 , F01N3/15 , F02D17/00
CPC分类号： F02D41/0055 , F02D17/02 , F02D41/0087 , F02M26/38 , F02M26/43 , F02M26/57 , Y02T10/47
摘要： Disclosed is a split engine control system wherein the intake manifold is segmented by a shut-off valve into a first chamber portion leading to a first group of cylinders and a second chamber portion leading to a second group of cylinders. During periods of relatively low load, the cylinders of the second group are deactivated and the shut-off valve is closed to isolate the second chamber from the first chamber to cut off air supply to the deactivated cylinders. Exhaust gases are recirculated through the deactivated cylinders so that their pumping loss is minimized. A pressure detector is provided to detect a pressure difference which might develop between the first and second chambers during the partial cylinder operation to control the flow rate of the recirculated gases until the pressure difference reduces substantially to zero.
摘要翻译： 公开了一种分体式发动机控制系统，其中进气歧管由截止阀分段成通向第一组气缸的第一室部分和通向第二组气缸的第二室部分。 在相对较低的负载期间，第二组的气缸被停用，并且截止阀关闭以将第二腔室与第一腔室隔离，以切断对失活气缸的空气供应。 废气通过失活的气瓶再循环，使其泵送损失最小化。 提供压力检测器以检测在部分气缸操作期间可能在第一和第二室之间产生的压力差，以控制再循环气体的流量，直到压力差基本上减小到零。
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2.发明授权Combined split engine and closed loop mixture control operation with enriched fuel during partial cylinder mode 失效在部分气缸模式下，组合分体式发动机和闭环混合控制操作与浓缩燃料
公开(公告)号：US4274373A
公开(公告)日：1981-06-23
申请号：US46350
申请日：1979-06-07
IPC分类号： F02D41/14 , B01D53/94 , F01N3/20 , F01N3/22 , F01N9/00 , F01N13/02 , F02D17/02 , F02D21/08 , F02D41/02 , F02D41/04 , F01N3/15
CPC分类号： B01D53/9454 , B01D53/9495 , F01N13/009 , F01N3/20 , F01N3/22 , F01N9/00 , F02D17/02 , F01N2430/02 , Y02T10/22 , 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 downstream exhaust conduit is connected for emitting the gases to the atmosphere. A first set of an exhaust gas sensor and catalytic converter is disposed in the first conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second set of an exhaust gas sensor and 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 upstream catalytic converter in the second conduit. A feedback control circuit is responsive selectively to a signal from the first gas sensor during the partial cylinder operation for correcting the mixture ratio to a rich side of stoichiometry to promote reduction of the NOx component in the upstream converter and oxidation of HC and CO components in the downstream converter, and to a signal from the second gas sensor during the full cylinder operation for correcting the mixture ratio to a point at or near stoichiometry to promote simultaneous reduction and oxidation processes in both of the converters.
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 气缸分别连接到连接下游排气导管以将气体排放到大气中的公共连接点。 第一组排气传感器和催化转化器设置在第一管道中，以暴露于从第二组气缸排出的气体，其始终被激活，第二组排气传感器和催化转化器是 设置在公共下游导管中，以暴露于从第一组气缸排出的气体引导通过第一导管和通过第二导管中的上游催化转化器的气体。 反馈控制电路在部分气缸操作期间选择性地响应来自第一气体传感器的信号，以将混合比率校正为化学计量浓度的一侧，以促进上游转化器中的NOx组分的降低和HC和CO组分的氧化 下游转换器，以及来自第二气体传感器的信号，用于在整个气缸操作期间将混合比率校正为化学计量或接近化学计量点，以促进两个转换器中的同时还原和氧化过程。
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公开(公告)号：US4192278A
公开(公告)日：1980-03-11
申请号：US965994
申请日：1978-12-04
CPC分类号： F02D41/0055 , F02D17/02 , F02D21/08 , F02D41/0087 , F02M26/57 , Y02T10/47 , Y10T477/877
摘要： An internal combustion engine of the type wherein a particular group of engine cylinders are not supplied with air-fuel mixture during light load engine operation, comprises a gas supply device for supplying exhaust gas or fresh air into the particular group of cylinders when not supplied with air-fuel mixture, and a control device for stopping the supply of the exhaust gas or fresh air when a brake pedal is depressed to slow down the speed of a motor vehicle, so that engine brake becomes effective or is improved during light load engine operation.
摘要翻译： 一种内燃机，其特征在于，在轻负载发动机运转期间，特定组的发动机气缸不供应空气 - 燃料混合物，包括用于在不提供废气或新鲜空气的情况下将废气或新鲜空气供应到特定气瓶组中的气体供应装置 空气燃料混合物，以及用于在制动踏板被压下时停止排气或新鲜空气的供应的控制装置，以减慢机动车辆的速度，使得发动机制动在轻负载发动机运转期间变得有效或改善 。
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4.发明授权
公开(公告)号：US4276863A
公开(公告)日：1981-07-07
申请号：US34285
申请日：1979-04-30
IPC分类号： F02D41/34 , F02D17/02 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/12 , F02D41/36 , F02D17/00
CPC分类号： F02D41/0087 , F02D2250/21
摘要： Apparatus for controlling the number of enabled cylinders of an internal combustion engine during deceleration comprises a plurality of comparators responsive to a signal indicative of the engine rotational speed upon deceleration of the engine. The threshold voltages of the comparators are arranged stepwise so that each comparator produces an output signal when the engine speed falls below each threshold voltage. The output signals of the comparators are supplied to logic circuits to control a plurality of switches via which the fuel injection control pulse signal is respectively applied to fuel injection valves to increase in a stepwise fashion the number of enabled cylinders from the fuel cut-off state thereby preventing occurrence of impacts or shocks in the transition period of reactivation of the cylinders upon deceleration.
摘要翻译： 用于在减速期间控制内燃机的使能气缸数的装置包括响应于指示发动机减速时的发动机转速的信号的多个比较器。 比较器的阈值电压被逐步布置，使得当发动机速度低于每个阈值电压时，每个比较器产生输出信号。 比较器的输出信号被提供给逻辑电路以控制多个开关，燃料喷射控制脉冲信号分别通过燃料喷射控制脉冲信号施加到燃料喷射阀，以逐步地增加从燃料截止状态的使能气缸的数量 从而防止在减速时气缸重新启动的过渡期间的冲击或冲击的发生。
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5.发明授权
公开(公告)号：US4274382A
公开(公告)日：1981-06-23
申请号：US34262
申请日：1979-04-30
IPC分类号： F02D41/34 , F02D17/02 , F02D41/00 , F02D41/02 , F02D41/12 , F02D41/36 , F02D5/00 , F02D13/06
CPC分类号： F02D41/0087 , F02D2250/21
摘要： The engine crankshaft rotational speed is detected to be compared with stepwise arranged threshold speeds so as to stepwise enable fuel injection valves of respective cylinders during deceleration of the engine. Accordingly, the number of enabled cylinders is increased in a stepwise manner from a fuel cut-off state as the engine rotational speed decreases to prevent engine stall, while occurrence of shocks upon reactivation of cylinders is avoided. The threshold speeds are controlled in accordance with the variation of engine load which may be increased upon operation of auxiliary power consuming units, such as an air conditioner the compressor of which is driven by the engine, for preventing undesirable vibrations of the engine during the stepwise reactivation of the cylinders.
摘要翻译： 检测发动机曲轴转速与逐步排列的阈值速度进行比较，以便在发动机减速期间逐步地使各气缸的燃料喷射阀启动。 因此，由于在发动机转速降低的情况下，从燃料切断状态逐步地增加启用气缸的数量，以防止发动机停止，同时避免了气缸重新启动时的冲击。 阈值速度根据发动机负荷的变化来控制，发动机负载的变化可以在辅助动力消耗单元（例如其压缩机由发动机驱动的空调）的运行时增加，以防止在步进过程中发动机的不期望的振动 重新激活气瓶。
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公开(公告)号：US4263782A
公开(公告)日：1981-04-28
申请号：US052431
申请日：1979-06-26
IPC分类号： F02D41/02 , F01N3/20 , F01N9/00 , F01N13/02 , F02D17/02 , F02D41/00 , F02D41/04 , F02D41/14 , F02D41/36 , F01N3/15 , F02D17/00
CPC分类号： F02D41/1443 , F01N13/009 , F01N3/20 , F01N9/00 , F02D41/0087 , F01N2430/02 , F01N2430/06 , 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 exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a common exhaust conduit is connected for directing the gases to the atmosphere. A first set of an exhaust gas sensor and catalytic converter is disposed in the second conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second set of an exhaust gas sensor and catalytic converter is disposed in the common 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 upstream side catalytic converter in the second conduit. Feedback mixture control operation is effected on the basis of the signal from the first exhaust gas sensor during the partial cylinder mode and a full cylinder mode in which the second gas sensor is still below its normal operating temperature. The signal from the second gas sensor is utilized for the feedback operation in the full cylinder mode in which the temperature of the latter sensor is above its normal operating point.
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在部分气缸上操作发动机的分体式发动机控制单元，以及用于引导来自第一和第二组气缸的废气的第一和第二排气导管 分别连接到连接有公共排气导管以将气体引导到大气中的公共接头。 第一组废气传感器和催化转化器设置在第二导管中以暴露于从第二组气缸排出的气体，该气体始终被激活，第二组废气传感器和催化转化器是 设置在公共管道中以暴露于从通过第一管道引导的第一组气缸排出的气体流和通过第二管道中的上游侧催化转化器的气体。 基于在部分气缸模式期间来自第一排气传感器的信号和第二气体传感器仍然低于其正常工作温度的全气缸模式进行反馈混合控制操作。 来自第二气体传感器的信号用于全气缸模式中的反馈操作，其中后者传感器的温度高于其正常工作点。
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7.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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8.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：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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