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公开(公告)号：US4787357A
公开(公告)日：1988-11-29
申请号：US923865
申请日：1986-10-28
CPC分类号： F02D41/149 , F02D41/068 , F02D2200/0606 , F02D41/1456
摘要： An intake system utilizing an air-fuel control which is changed in accordance with the coolant temperature. When the coolant temperature is lower than the first coolant temperature, an open loop control is carried out in accordance with the coolant temperature so that a fluctuation of the air-fuel ratio can be restricted so as to obtain a stability. An air-fuel feedback control is carried out between the first and second coolant temperatures wherein the air-fuel ratio is maintained at the stoichiometric value so that an increase of NO.sub.X emitted from the engine can be suppressed. In the region in which the coolant temperature exceeds the second temperature, an air-fuel feedback control is carried out in the lean mixture side of the stoichiometric value in accordance with the coolant temperature to thereby improve the emission performance of the engine.
摘要翻译： 利用根据冷却剂温度改变的空气燃料控制的进气系统。 当冷却剂温度低于第一冷却剂温度时，根据冷却剂温度进行开环控制，从而可以限制空燃比的波动以获得稳定性。 在第一和第二冷却剂温度之间进行空燃比反馈控制，其中空燃比保持在化学计量值，从而可以抑制从发动机排放的NO x的增加。 在冷却剂温度超过第二温度的区域中，根据冷却剂温度在化学计量值的稀混合侧进行空燃比反馈控制，从而提高发动机的排放性能。
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公开(公告)号：US4682044A
公开(公告)日：1987-07-21
申请号：US791447
申请日：1985-10-25
CPC分类号： H02J7/1476
摘要： An automobile engine having a device for increasing the inkage air in idle operation when a load is applied to the engine from equipments associate with the engine. An alternator driven by the engine has a voltage regulator which controls the alternator output in response to a load condition on the alternator by controlling the field current. A control unit is provided to restrict an increase in the field current when an electric load is turned on for a time period required for having the engine output increased.
摘要翻译： 一种汽车发动机，其具有用于当从发动机关联的设备向发动机施加负载时在空转运行中增加空气的装置。 由发动机驱动的交流发电机具有电压调节器，其通过控制励磁电流来响应于交流发电机上的负载状况来控制交流发电机输出。 提供一个控制单元，用于在电动负载打开一段时间以限制发动机输出增加所需的时间段内的励磁电流的增加。
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公开(公告)号：US4691677A
公开(公告)日：1987-09-08
申请号：US820613
申请日：1986-01-21
CPC分类号： F02D11/105
摘要： A throttle valve control system comprises an accelerator position sensor for detecting the amount of operation of the accelerator, a throttle valve opening degree determining circuit which receives the output of the accelerator position sensor and determines the opening degree of the throttle valve, and a throttle valve driving device which drives the throttle valve to the position corresponding to the opening degree determined by the throttle valve opening degree determining circuit. The throttle valve opening degree determining circuit is arranged to determine the opening degree of the throttle valve with respect to the amount of operation of the accelerator so that the change in the opening degree of the throttle valve for a given change in the amount of operation of the accelerator is relatively small when the amount of operation of the accelerator is in an intermediate range and is relatively large when the amount of operation of the accelerator is above or below the intermediate range.
摘要翻译： 节气门控制系统包括用于检测加速器的操作量的加速器位置传感器，接收加速器位置传感器的输出并确定节流阀的开度的节气门开度确定电路和节流阀 驱动装置，其将节气门驱动到对应于由节气门开度确定电路确定的开度的位置。 节气门开度确定电路被设置为确定节气门相对于加速器的操作量的开度，使得节气门的开度的变化对于给定的操作量的变化 当加速器的操作量高于或低于中间范围时，当加速器的操作量处于中间范围并且相对较大时，加速器相对较小。
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4.发明授权
公开(公告)号：US4532905A
公开(公告)日：1985-08-06
申请号：US582771
申请日：1984-02-23
CPC分类号： F02D41/008 , F02D41/14 , F02D41/345 , Y02T10/44
摘要： A fuel injection valve is provided upstream of a branch-off part of a branched off intake passage, the downstream ends of the branched off passages being connected to a plurality of cylinders of an engine. The fuel injection timing of the injection valve is controlled by a pulse controller. The pulse controller operates to control the pulse timing basically according to the intake air flow and the crank angle of the crank shaft of the engine, and further corrects the timing according to the air fuel ratio difference between cylinders whose intake strokes are adjacent to each other. The correction rate of the timing may be changed according to the degree of the engine load and/or the engine temperature. By the correction of the timing, the air fuel mixture in rich cylinders is partly inhaled into lean cylinders so that the air fuel ratios of the cylinders may be equalized.
摘要翻译： 燃料喷射阀设置在分支进气通道的分支部分的上游，分支通道的下游端连接到发动机的多个气缸。 喷射阀的燃料喷射正时由脉冲控制器控制。 脉冲控制器基本上根据发动机的曲轴的进气流量和曲柄角来控制脉冲定时，并且进一步根据进气冲程彼此相邻的气缸之间的空燃比差来校正正时 。 定时的校正率可以根据发动机负载的程度和/或发动机温度而改变。 通过校正时间，富气缸中的空气燃料混合物部分地被吸入贫油缸，使得气缸的空燃比可以相等。
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公开(公告)号：US4508078A
公开(公告)日：1985-04-02
申请号：US511983
申请日：1983-07-08
CPC分类号： F02D11/105 , F02D2011/102
摘要： An engine throttle valve operating device comprising a throttle valve operating foot pedal position detector for detecting the position of the foot pedal and producing a foot pedal position signal corresponding to the position of the foot pedal, a rapid acceleration detector connected with the foot pedal position detection for receiving the foot pedal position signal therefrom and producing a rate signal corresponding to a rate of change per unit time of the position of the foot pedal, a throttle valve actuator for actuating the engine throttle valve, a throttle valve driving signal generating circuit responsive to the foot pedal position signal and the rate signal to produce a first drive signal for operating the actuator in accordance with the foot pedal position signal when the rate of change per unit time of the position of the foot pedal is smaller than a predetermined value and a second drive signal for operating the actuator by a greater extent than under the first drive signal when the rate of change per unit time of the position of the operating member is greater than the predetermined value.
摘要翻译： 一种发动机节流阀操作装置，包括用于检测脚踏板位置并产生对应于脚踏板位置的脚踏踏板位置信号的节流阀操作脚踏位置检测器，与踏板位置检测器相连的快速加速度检测器 用于从其接收脚踏踏板位置信号并产生与脚踏板位置的每单位时间的变化率对应的速率信号，用于致动发动机节气门的节气门致动器，响应于 脚踏板位置信号和速率信号，以便当脚踏板的位置的每单位时间的变化率小于预定值时，产生用于根据脚踏板位置信号操作致动器的第一驱动信号，并且 第二驱动信号用于比第一驱动信号更大程度地操作致动器 当操作构件的位置的每单位时间的变化率大于预定值时。
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公开(公告)号：US5501074A
公开(公告)日：1996-03-26
申请号：US215769
申请日：1994-03-22
CPC分类号： F02D41/1446 , F02D41/1408 , F01N2370/04
摘要： An exhaust gas purifying system for an automobile engine is equipped with a metal zeolite catalytic converter for deoxidizing and purifying nitrogen oxides in exhaust gas. The system controls and compulsorily changes the air-fuel ratio of the fuel mixture injected into the automobile engine based on a target air-fuel ratio only when the temperature of the exhaust gas, before entering the catalyst, is greater than a specific temperature.
摘要翻译： 用于汽车发动机的废气净化系统配备有用于对排气中的氮氧化物进行脱氧和净化的金属沸石催化转化器。 只有当进入催化剂之前的排气温度大于特定温度时，系统基于目标空燃比控制和强制地改变注入汽车发动机的燃料混合物的空燃比。
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公开(公告)号：US4215540A
公开(公告)日：1980-08-05
申请号：US917353
申请日：1978-06-20
IPC分类号： F01N3/22 , F01N3/30 , F01N3/34 , F01N13/00 , F01N13/08 , F01N99/00 , F02B75/10 , F02M25/07 , F01N3/15 , F02M25/06
摘要： An exhaust gas purifying apparatus, for use in an automobile multi-cylinder engine of the type which has exhaust port ducts leading from engine cylinders and through which exhaust gases are emitted subsequent to combustion of an air-fuel mixture, the exhaust gas purifying apparatus having a reducing catalyst unit and an oxidizing catalyst unit disposed in a main exhaust manifold which is corrected on one side, to a first group of the exhaust port ducts and, on the other side to the atmosphere, an auxiliary exhaust manifold is connected, on one side to a second group of the exhaust port ducts and on the other side to a portion of the main exhaust manifold which is downstream from the reducing catalyst unit and upstream of the oxidizing catalyst unit. A pressure operated valve is disposed on a secondary air supply passage for introducing secondary air into the auxiliary exhaust manifold by the utilization of a pulsating flow of the exhaust gases through the auxiliary exhaust manifold, and an exhaust gas recirculating system extending between the main exhaust manifold to an intake system of the engine.
摘要翻译： 一种用于汽车多气缸发动机的排气净化装置，该排气净化装置具有从发动机气缸引导的排气口导管，并且在空气 - 燃料混合物燃烧之后排气被排出， 还原催化剂单元和氧化催化剂单元，其设置在主排气歧管中，该主排气歧管在一侧被校正到第一组排气管道，另一侧连接到大气，辅助排气歧管连接在一起 一侧连接到排气口导管的第二组，另一侧连接到主排气歧管的在还原催化剂单元下游和氧化催化剂单元上游的一部分。 压力操作阀设置在二次空气供应通道上，用于通过利用通过辅助排气歧管的排气的脉动流将二次空气引入到辅助排气歧管中，以及在主排气歧管之间延伸的废气再循环系统 到发动机的进气系统。
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8.发明授权Exhaust gas recirculation apparatus controlled by clutch, throttle and timer 失效排气再循环装置由离合器，节流阀和定时器控制
公开(公告)号：US4174027A
公开(公告)日：1979-11-13
申请号：US846494
申请日：1977-10-27
申请人： Tadataka Nakazumi
发明人： Tadataka Nakazumi
CPC分类号： F02M26/57 , F02M26/38 , Y10T477/79
摘要： The engine has a duct connecting the gases in the exhaust gas crossover passage to the intake manifold and providing with a flow control valve for controlling the flow in the duct in such that said valve is moved to open by signals from both of a clutch-actuation detection device and a throttle valve-opening detection device and is kept opening by signal from a timer to be actuated by said two devices.
摘要翻译： 发动机具有将废气交叉通道中的气体连接到进气歧管的管道，并且设置有用于控制管道中的流动的流量控制阀，使得所述阀门通过来自离合器致动器 检测装置和节气门开启检测装置，并且由来自定时器的信号保持打开以由所述两个装置致动。
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公开(公告)号：US4561404A
公开(公告)日：1985-12-31
申请号：US649757
申请日：1984-09-12
申请人： Yoshiaki Kanno , Tadataka Nakazumi
发明人： Yoshiaki Kanno , Tadataka Nakazumi
CPC分类号： F02D41/10 , F02D41/045 , F02D41/105
摘要： Opening degree of the throttle valve of an engine is detected and compared with a plurality of throttle opening degree reference values which are preset to be minuter in the lower region of the throttle opening degree. Each time the actual throttle opening degree exceeds one of the reference values, an extra fuel injection pulse is outputted in addition to regular injection pulses to increase the amount of fuel to be supplied to the engine.
摘要翻译： 检测发动机的节流阀的开度，并与在节气门开度的下部区域预先设定为微小的多个节气门开度基准值进行比较。 每当实际节气门开度超过基准值时，除常规喷射脉冲之外还输出额外的燃料喷射脉冲，以增加要供给发动机的燃料量。
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公开(公告)号：US4669439A
公开(公告)日：1987-06-02
申请号：US772548
申请日：1985-09-04
CPC分类号： F02D41/2454 , F02D41/2477 , F02D41/2487
摘要： An air-to-fuel ratio control system for an internal combustion engine comprises means for performing a feedback control for keeping a fuel mixture to have the theoretical air-to-fuel ratio or approximations thereof in response to the output of an air-to-fuel ratio sensor, means for conducting the learning to compute a supplemental feedback quantity of fuel used for revising the quantity of fuel by which the fuel actually supplied is determined in at least one of partitions of the operating condition of the engine under the feedback control, means for memorizing the supplemental feedback quantity of fuel in at least one of memorizing areas partitioned in accordance with the partitions of the operating condition of the engine as a resultant of the learning, means for renewing the resultant of the learning in each of the remaining memorizing areas on the strength of the resultant of the learning newly memorized in at least one of memorizing areas, and means for supplying the fuel of the quantity computed with the renewed resultant of the learning in each memorizing area so as to produce the fuel mixture having a desired air-to-fuel ratio different from the theoretical air-to-fuel ratio and approximations thereof through an open-loop control under the situations where the operation of the engine meets predetermined conditions.
摘要翻译： 用于内燃机的空燃比控制系统包括用于执行用于保持燃料混合物具有理论空燃比或其近似值的反馈控制的装置，其响应于空气 - 燃料比传感器，用于进行学习以计算在反馈控制下在发动机的运行状态的至少一个分区中确定用于修正实际供应的燃料的燃料量的补充反馈量的燃料的装置， 用于记录作为学习结果的根据作为发动机的结果的发动机的运行状态的分区的至少一个记忆区域中的补充反馈量的装置，用于在每个剩余记忆中更新所学习的结果的装置 至少存储在记忆区域中的学习结果的强度的区域，以及用于提供q的燃料的装置 利用每个存储区域中的学习的更新结果计算出的能量，以便产生具有与理论空燃比不同的期望的空气 - 燃料比的燃料混合物，并且通过下述的开环控制来产生其近似值 发动机运转满足预定条件的情况。
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