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101. 发明授权

US6161530A Control system for internal combustion engine 失效
标题翻译：内燃机控制系统
公开(公告)号：US6161530A
公开(公告)日：2000-12-19
申请号：US109044
申请日：1998-07-02
申请人： Shigeaki Kakizaki , Mikio Matsumoto , Hiraku Ooba
发明人： Shigeaki Kakizaki , Mikio Matsumoto , Hiraku Ooba
IPC分类号： F02D41/00 , F02D41/14 , F02D41/24 , F02D41/30
CPC分类号： F02D41/2422 , F02D41/0042 , F02D41/0045 , F02D41/083 , F02D41/1441 , F02D41/1456 , F02D41/1487 , F02D41/187 , F02D41/2445 , F02D41/2454 , F02D41/3011 , F02D41/3029 , Y02T10/128
摘要： An air-fuel ratio control system for an automotive internal combustion engine equipped with a fuel injector valve. The control system comprises a sensor for detecting a ratio between air and fuel which form air-fuel mixture in the engine. A controller is provided to control the ratio between air and fuel, and includes a section for calculating the ratio between air and fuel, in accordance with an engine operating condition. A section is provided for calculating a quantity of fuel to be supplied through the fuel injector valve, in accordance with the calculated ratio between air and fuel. A section is provided for calculating a coefficient relating to a feedback control for the ratio between air and fuel, in accordance with the calculated quantity of fuel to be supplied. The feedback control is made in accordance with the ratio between air and fuel detected by the sensor. Additionally, a section is provided for accomplishing a feedback in calculation of the ratio between air and fuel, by using the calculated coefficient.
摘要翻译：一种配备有燃料喷射阀的汽车内燃机的空燃比控制系统。控制系统包括用于检测在发动机中形成空气 - 燃料混合物的空气和燃料之间的比率的传感器。提供控制器以控制空气和燃料之间的比例，并且包括根据发动机运行状况计算空气和燃料之间的比率的部分。根据计算出的空气和燃料的比例，提供一个部分，用于计算通过燃料喷射阀提供的燃料量。根据所计算出的供给的燃料量，提供用于计算与空燃比的反馈控制有关的系数的部分。反馈控制根据传感器检测到的空气和燃料的比例进行。此外，提供了一个部分，用于通过使用计算的系数来计算空气和燃料之间的比率来实现反馈。

102. 发明授权

US5979419A Apparatus for controlling the air-fuel ratio in an internal combustion engine 失效
标题翻译：用于控制内燃机中的空燃比的装置
公开(公告)号：US5979419A
公开(公告)日：1999-11-09
申请号：US203848
申请日：1998-12-02
申请人： Katsuhiko Toyoda
发明人： Katsuhiko Toyoda
IPC分类号： F02M25/08 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D45/00 , F02M37/04
CPC分类号： F02D41/0042 , F02D41/2438 , F02D41/2445 , F02D41/2454
摘要： An air-fuel ratio controlling apparatus for an internal combustion engine allows an air-fuel ratio learning control to be executed to a satisfactory extent during manufacture in a factory to thereby stabilize exhaust gases and driving performance. The apparatus is provided with a controller which sets air-fuel ratio learning execution counters in a plurality of learning zones. The counters judge whether an air-fuel ratio learning has been executed in an air-fuel ratio learning value storage map based on engine revolutions and engine load, and execute a forced learning control with the amount of purge as a fixed value where the air-fuel ratio learning is not performed at least a preset number of times in all the learning zones with the air-fuel ratio learning execution counters set therein.
摘要翻译：用于内燃机的空燃比控制装置允许在工厂制造期间以令人满意的程度执行空燃比学习控制，从而稳定排气和驱动性能。该装置设置有在多个学习区域中设定空燃比学习执行计数器的控制器。计数器基于发动机转数和发动机负荷判断空燃比学习值存储映射中是否执行了空燃比学习，并且以吹扫量执行强制学习控制为固定值，在其中设置有空燃比学习执行计数器的所有学习区域中，至少预定次数不进行燃料比学习。

103. 发明授权

US5735120A Device for judging the deterioration of a catalyst of an engine 失效
标题翻译：用于判断发动机的催化剂劣化的装置
公开(公告)号：US5735120A
公开(公告)日：1998-04-07
申请号：US739967
申请日：1996-10-30
申请人： Toshinari Nagai
发明人： Toshinari Nagai
IPC分类号： G01M15/04 , F01N3/20 , F01N3/24 , F01N11/00 , F02D41/14 , F02D45/00
CPC分类号： F02D41/1441 , F01N11/007 , F02D41/2441 , F02D41/2454 , F01N2550/02 , F02D41/2445 , Y02T10/47
摘要： A device for judging the deterioration of a three-way catalyst comprising an upstream O.sub.2 sensor and a downstream O.sub.2 sensor which are arranged in the exhaust passage upstream and downstream of the three-way catalyst, respectively. The deterioration of the three-way catalyst is judged in a predetermined narrow operating region based on the output of these O.sub.2 sensors. A learning value is set for control of the air-fuel ratio for the predetermined narrow operating region separate from the other operating regions.
摘要翻译：一种用于判断包含上游O 2传感器和下游O 2传感器的三元催化剂的劣化的装置，其分别布置在三元催化剂的上游和下游的排气通道中。基于这些O 2传感器的输出，在预定的窄操作区域中判断三元催化剂的劣化。设定学习值用于控制与其他操作区域分开的预定窄操作区域的空燃比。

104. 发明授权

US5467755A Method and system for controlling flexible fuel vehicle fueling 失效
标题翻译：用于控制柔性燃料车辆加油的方法和系统
公开(公告)号：US5467755A
公开(公告)日：1995-11-21
申请号：US295450
申请日：1994-08-25
申请人： Julie A. Konrad , Mark Freeland , Brian S. Czuhai
发明人： Julie A. Konrad , Mark Freeland , Brian S. Czuhai
IPC分类号： F02D19/08 , F02D33/00 , F02D41/00 , F02D41/14 , F02M37/00
CPC分类号： F02D33/006 , F02D19/0636 , F02D19/081 , F02D19/084 , F02D41/0025 , F02D41/2454 , F02M37/0064 , F02D2200/0612 , F02D41/2445 , F02D41/2451 , F02M37/0011 , Y02T10/36
摘要： An adaptive fuel control system and method directed for use in a motor vehicle powered by a fuel-injected engine and having a fuel tank and a fuel rail and which is operative to run on a plurality of fuels and fuel blends. The system includes a refueling mixer which acts as a fluid damper to slowly introduce new fuel into the fuel rail and correspondingly slow the rate at which new fuel composition is mixed with existing fuel. A stratification mixer is also utilized to re-mix components of blended fuels which may have separated at cold temperatures. An Exhaust Gas Oxygen sensor (EGO) monitors engine exhaust gases and generates a corresponding electrical signal when the air/fuel mixture of the fuel switches between rich and lean. Finally, an electronic control assembly communicates with the EGO and the fuel injectors to generate and store in memory an updatable extended adaptive fuel control table of air/fuel ratio multipliers for selected engine load/engine speed cells. The ECA is adapted to update each of the cells in an amount proportional to the distance the corresponding load point is away from the corresponding load point of all bordering cells. The ECA further generates and stores an updatable counter table and an updatable time stamping table which, together, are operative to adjust the fuel injectors to provide the correct adaption for the current fuel at the current engine speed and engine load.
摘要翻译：一种适用于燃料控制系统和方法，该系统和方法用于由燃料喷射发动机驱动并且具有燃料箱和燃料轨道的机动车辆，并且可操作地在多个燃料和燃料混合物上运行。该系统包括加油混合器，其作为流体阻尼器以缓慢地将新燃料引入燃料轨道并相应地降低新燃料组合物与现有燃料混合的速率。还使用分层混合器来重新混合可能在低温下分离的混合燃料的组分。废气氧气传感器（EGO）监测发动机废气，并在燃料的空气/燃料混合物在浓缩和稀燃之间切换时产生相应的电信号。最后，电子控制组件与EGO和燃料喷射器通信，以在存储器中生成并存储用于选择的发动机负载/发动机转速单元的可更新的空气/燃料比乘数的扩展自适应燃料控制表。 ECA适于以与相应负载点远离所有边界单元的相应负载点成比例的量来更新每个单元。 ECA还生成并存储可更新的计数器表和可更新的时间戳表，其一起可操作以调节燃料喷射器，以在当前发动机转速和发动机负荷下为当前燃料提供正确的适配。

105. 发明授权

US5193339A Method of and an apparatus for controlling the air-fuel ratio of an internal combustion engine 失效
标题翻译：用于控制内燃机的空燃比的方法和装置
公开(公告)号：US5193339A
公开(公告)日：1993-03-16
申请号：US784395
申请日：1991-12-31
申请人： Junichi Furuya
发明人： Junichi Furuya
IPC分类号： F02D41/14
CPC分类号： F02D41/1441 , F02D41/2445 , F02D41/2454 , F02D41/1456 , F02D41/2448 , F02D41/2477 , Y02T10/22
摘要： An air-fuel ratio controlling apparatus carries out air-fuel ratio feedback control with the use of air-fuel ratio sensors disposed on the upsteam and downstream sides of a three-way catalytic converter. An air-fuel ratio feedback correction coefficient calculated based on an output value of the upstream air-fuel ratio sensor is corrected according to a correction quantity obtained based on an output value of the downstream air-fuel ratio sensor. This correction quantity is calculated according to a learned collective correction quantity uniformly applicable for a whole operation region, and learned regional correction quantites applicable for divided operation regions, respectively. When the learned collective correction quantity is corrected through addition, a portion added to the learned collective correction quantity is subtracted from each of the learned regional correction quantities. This subtraction is carried out only on the learned regional correction quantities of the operation regions whose degree of progress of learning is greater than a predetermined value. This arrangement improves the speed and accuracy of the air-fuel ratio learning control carried out according to the downstream air-fuel ratio sensor, and promotes the learning of an operation region in which learning opportunity is small.
摘要翻译： PCT No.PCT / JP91 / 00650 Sec。 371日期1991年12月31日 102（e）1991年12月31日PCT日期1991年5月16日PCT。空燃比控制装置利用设置在上游侧和下游侧的空燃比传感器进行空燃比反馈控制三元催化转化器。根据上游空燃比传感器的输出值计算的空燃比反馈校正系数根据下游空燃比传感器的输出值得到的校正量进行校正。该校正量根据对于整个操作区域均匀适用的学习集体校正量，以及分别适用于分割操作区域的学习区域校正量来计算。当通过加法校正学习的集体校正量时，从学习的区域校正量的每一个中减去添加到所学习的集体校正量的部分。该减法仅在学习进度大于预定值的操作区域的学习区域校正量上进行。由此，能够提高根据下游空燃比传感器进行的空燃比学习控制的速度和精度，促进学习机会小的操作区域的学习。

106. 发明授权

US5168701A Method of controlling the air-fuel ratio in an internal combustion engine 失效
标题翻译：控制内燃机的空燃比的方法
公开(公告)号：US5168701A
公开(公告)日：1992-12-08
申请号：US674162
申请日：1991-03-25
申请人： Toshio Yamamoto , Katsuyuki Kajitani , Youichi Iwakura
发明人： Toshio Yamamoto , Katsuyuki Kajitani , Youichi Iwakura
IPC分类号： F02D41/14
CPC分类号： F02D41/1441 , F02D41/2445 , F02D41/2454 , F02D41/2477 , F02D41/2483
摘要： This invention relates to a method of controlling the air-fuel ratio of an internal combustion engine having a main 0.sub.2 sensor and a subsidiary O.sub.2 sensor provided upstream and downstream, respectively, of a catalyst converter for detecting the oxygen concentration of the exhaust gas of the engine. The method comprises: feedback-controlling the air-fuel ratio of a mixture gas to be supplied to the engine to about a stoichiometric air-fuel ratio having the highest purification efficiency of the exhaust gas by adjusting the amount of fuel to be supplied by an injector in accordance with the output signal from the main O.sub.2 sensor; and also feedback-controlling more precisely the air-fuel ratio of the mixture gas to about the stoichiometric air-fuel ratio by adjusting the amount of fuel supply in accordance with the output signal of the subsidiary O.sub.2 sensor. The feedback control value set for adjusting the amount of fuel supply in accordance with the output signal of the subsidiary O.sub.2 sensor is usually increased or decreased by a predetermined value. When a change of the air-fuel ratio from the rich to the lean side or from the lean to the rich side is detected by the output signal of the subsidiary O.sub.2 sensor, the feedback control value is increased or decreased by a skip amount.
摘要翻译：本发明涉及一种控制内燃机的空燃比的方法，所述内燃机具有分别设置在上游和下游的主O2传感器和辅助O2传感器，所述催化转化器用于检测所述废气的氧气浓度发动机。该方法包括：通过调节供给到发动机的燃料的量来反馈控制要供给到发动机的混合气体的空燃比至具有最高净化效率的化学计量空燃比注射器根据来自主O2传感器的输出信号; 并且还通过根据辅助O 2传感器的输出信号调节燃料供给量，更准确地将混合气体的空燃比反馈控制到约理论空燃比。用于根据辅助O 2传感器的输出信号调整燃料供给量的反馈控制值通常增加或减少预定值。当通过辅助O 2传感器的输出信号来检测空燃比从浓向瘦侧或从贫侧变化到浓侧时，反馈控制值增加或减少跳跃量。

107. 发明授权

US5014548A Method and apparatus for detecting deterioration of sucked air flow quantity-detecting device of engine 失效
标题翻译：用于检测发动机的吸气流量检测装置的劣化的方法和装置
公开(公告)号：US5014548A
公开(公告)日：1991-05-14
申请号：US540618
申请日：1990-06-20
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： F02D41/18 , F02D41/24 , F02D45/00 , G01F25/00
CPC分类号： F02D41/2445 , F02D41/182 , F02D41/2474 , F02D41/28 , G01F25/0007
摘要： Disclosed are a method and apparatus for detecting deterioration of a sucked air flow quantity-detecting device of an engine, in which during a predetermined period after the start of use of the engine, detected values of sucked air flow quantities detected by the sucked air flow quantity-detecting device are learned for respective areas of the engine driving state, and then, the detected value of the sucked air flow quantity detected by the air flow quantity-detecting device is compared with the learned value and deterioration of the sucked air flow quantity-detecting device is judged when the difference is larger than a predetermined value.
摘要翻译：公开了一种用于检测发动机的吸入空气流量检测装置的劣化的方法和装置，其中在发动机开始使用之后的预定时间段内，由吸入空气流检测到的吸入空气流量的检测值在发动机驱动状态的各个区域中学习量检测装置，然后将由空气流量检测装置检测的吸入空气流量的检测值与学习值进行比较，并且吸入空气流量的劣化当差值大于预定值时判断检测装置。

108. 发明授权

US4911129A Air/fuel mixture ratio control system in internal combustion engine with _engine operation range dependent _optimum correction coefficient learning feature 失效
标题翻译：内燃机空/燃混合比控制系统，发动机运行范围依赖最佳校正系数学习特征
公开(公告)号：US4911129A
公开(公告)日：1990-03-27
申请号：US171022
申请日：1988-03-18
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： F02D41/00 , F02D41/14 , F02D45/00
CPC分类号： F02D41/2454 , F02D41/2445 , F02D41/1456 , F02D41/248
摘要： An air/fuel ratio control system employs an altitude dependent learnt uniform correction coefficient which is applicable for all engine driving range and another engine driving range based correction coefficient learnt with respect to responsive engine driving range. The uniform correction coefficient is cyclically updated on engine driving range based correction coefficient. The control system performs FEEDBACK mode air/fuel ratio control with the learnt uniform correction coefficient and the engine driving range based correction coefficient. On the other hand, the control system performs OPEN LOOP mode air/fuel ratio control with the learnt uniform correction coefficient.

109. 发明授权

US4726344A Electronic air-fuel mixture control system for internal combustion engine 失效
标题翻译：内燃机电子空燃混合控制系统
公开(公告)号：US4726344A
公开(公告)日：1988-02-23
申请号：US820149
申请日：1986-01-21
申请人： Tsuneo Ando , Kazusato Kasuya , Yukitoshi Asada , Hironobu Sugimoto
发明人： Tsuneo Ando , Kazusato Kasuya , Yukitoshi Asada , Hironobu Sugimoto
IPC分类号： F02D41/14 , F02D41/24 , F02D41/34
CPC分类号： F02D41/2422 , F02D41/2445 , F02D41/2454 , F02D41/248
摘要： An electronic air-fuel mixture control system is adapted to an internal combustion engine to determine an optimum air-fuel ratio in dependence upon renewal of a plurality of learning values related to a plurality of load regions of the engine. The control system is arranged to conduct simultaneous learning of the learning values at a frequency in accordance with lapse of time and to conduct selective learning of the learning values in accordance with change of the load acting on the engine.
摘要翻译：电子空气燃料混合物控制系统适用于内燃机，以根据与发动机的多个负载区域相关的多个学习值的更新来确定最佳空燃比。控制系统被配置为根据时间的流逝以频率同时学习学习值，并且根据作用在发动机上的负载的变化来进行学习值的选择性学习。

110. 发明授权

US4306529A Adaptive air/fuel ratio controller for internal combustion engine 失效
标题翻译：内燃机自适应空燃比控制器
公开(公告)号：US4306529A
公开(公告)日：1981-12-22
申请号：US142332
申请日：1980-04-21
申请人： Alan F. Chiesa , Fayetta L. Colden , David A. Singer , John A. Zahorchak
发明人： Alan F. Chiesa , Fayetta L. Colden , David A. Singer , John A. Zahorchak
IPC分类号： F02D41/14 , F02D41/24 , F02D41/26 , F02D45/00 , F02M7/00
CPC分类号： F02D41/2454 , F02D41/2445 , F02D41/26
摘要： An air/fuel ratio controller for an internal combustion engine including a memory having numbers stored at locations addressed by engine operating points with the locations addressed by the engine operating points being updated during closed loop operation in accord with the value of a closed loop adjustment of the air/fuel ratio. Each memory location in the memory is updated during operation of the engine at the corresponding operating point in accord with an update time constant having a value so that the number stored tracks adjustment value producing the predetermined desired closed loop air/fuel ratio during varying values of engine temperature. The update time constant is varied directly with the value of engine temperature so that the rate of adjustment of the numbers in the memory is greater during engine warmup where engine temperature increases rapidly. The memory is used during closed loop operation to preset the closed loop adjustment at least when the engine first operates at an operating point.
摘要翻译：一种用于内燃机的空燃比控制器，包括存储器，该存储器具有存储在由发动机操作点寻址的位置处的数量，其中由发动机操作点寻址的位置在闭环操作期间根据闭环调节的值被更新空燃比。根据具有值的更新时间常数，在发动机在对应操作点的操作期间更新存储器中的每个存储器位置，使得存储的数量轨道调整值产生预定的期望闭环空气/燃料比，发动机温度。更新时间常数随着发动机温度的值而直接变化，从而在发动机温度快速升高的发动机预热期间，存储器中的数量的调节速率更大。在闭环操作期间使用存储器来至少在发动机首先在操作点操作时预设闭环调节。

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