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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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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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3.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：US4335687A
公开(公告)日：1982-06-22
申请号：US160616
申请日：1980-06-18
CPC分类号： F02D41/0087
摘要： An internal combustion engine is disclosed which comprises first and second cylinder units each including at least one cylinder, pulse generator means for generating, in synchronism with engine rotation, a fuel injection pulse signal of pulse width proportional to the rate of air flow to said engine, and first and second fuel supply means responsive to the fuel injection pulse signal for supplying, into the first and second cylinder units, respectively, a controlled amount of fuel corresponding to the duty ratio of the fuel injection pulse signal. Control means is provided for cutting off the fuel injection pulse signal to the second fuel supply means when the engine load is below a reference level increasing with an increase in engine temperature except when the engine speed is below a given level at open throttle conditions.
摘要翻译： 公开了一种内燃机，其包括第一和第二气缸单元，每个气缸单元包括至少一个气缸，脉冲发生器装置，用于与发动机旋转同步地产生与向所述发动机的空气流量成比例的脉冲宽度的燃料喷射脉冲信号 以及响应于燃料喷射脉冲信号的第一和第二燃料供应装置，分别向第一和第二气缸单元提供对应于燃料喷射脉冲信号的占空比的受控量的燃料。 提供控制装置，用于当发动机负载低于基准水平时随着发动机温度升高而将燃料喷射脉冲信号切断到第二燃料供给装置，除非当发动机转速低于开启节气门条件时的给定水平时。
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公开(公告)号：US4344393A
公开(公告)日：1982-08-17
申请号：US161369
申请日：1980-06-20
摘要： An internal combustion engine is disclosed which includes first and second cylinder units each including at least one cylinder, means for cutting off the supply of air and fuel to the second cylinder unit so as to render it inactive when the engine load is below a given value, a three-way catalytic converter for purifying the exhaust from the cylinders, a sensor exposed to the exhaust from the cylinders to provide a signal indicative of the air/fuel ratio at which the engine is operating, and means responsive to the signal from the sensor for controlling the fuel supplied to the engine to maintain the stoichiometric air/fuel ratio. Means is provided for introducing a predetermined amount of air into the second cylinder unit.
摘要翻译： 公开了一种内燃机，其包括每个包括至少一个气缸的第一和第二气缸单元，用于切断向第二气缸单元供应空气和燃料的装置，以便当发动机负载低于给定值时使其不起作用 用于净化来自气缸的排气的三元催化转化器，暴露于来自气缸的排气的传感器以提供指示发动机运转的空燃比的信号，以及响应于来自 传感器，用于控制供应到发动机的燃料以维持理论空燃比。 提供用于将预定量的空气引入第二气缸单元的装置。
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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：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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8.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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9.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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10.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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