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1.发明授权
公开(公告)号：US4951209A
公开(公告)日：1990-08-21
申请号：US69038
申请日：1987-07-01
申请人： Hatsuo Nagaishi , Hiroshi Sanbuichi , Masaaki Uchida , Hiromichi Miwa , Toshio Takahata , Yasuo Seimiya , Hiromasa Kubo
发明人： Hatsuo Nagaishi , Hiroshi Sanbuichi , Masaaki Uchida , Hiromichi Miwa , Toshio Takahata , Yasuo Seimiya , Hiromasa Kubo
CPC分类号： F02D41/2496 , F02D35/003 , F02D41/045 , G01F1/26 , G01F1/72
摘要： The throttle valve position is sensed and the effective cross sectional area of the induction passage determined via table look up. The value thus derived is divided by the engine speed. A basic air induction quantity is then determined via table look up and subsequently modified using a correction coefficient to allow for the effect of engine speed on the amount of air inducted into each cylinder. The effect of injector position (viz., MPI/SPI) is taken into consideration and values suited for both generated in given embodiments. In the event that the maximum induction vacuum is limited by a BCD valve or the like, an embodiment anticipates the change in induction characteristics based on the engine speed.
摘要翻译： 感测节气门位置，通过表查找确定感应通道的有效截面面积。 所得到的值除以发动机转速。 然后通过表查找来确定基本的空气感应量，并且随后使用校正系数进行修改，以允许发动机速度对引入每个气缸的空气量的影响。 考虑到喷射器位置（即MPI / SPI）的影响和适合于在给定实施例中生成的两者的值。 在最大感应真空被BCD阀等限制的情况下，实施例基于发动机转速来预测感应特性的变化。
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2.发明授权
公开(公告)号：US4873641A
公开(公告)日：1989-10-10
申请号：US68942
申请日：1987-07-01
申请人： Hatsuo Nagaishi , Yasuo Seimiya , Hideyuki Tamura , Hiromichi Miwa , Hiroshi Sanbuichi , Masaaki Uchida , Toshio Takahata
发明人： Hatsuo Nagaishi , Yasuo Seimiya , Hideyuki Tamura , Hiromichi Miwa , Hiroshi Sanbuichi , Masaaki Uchida , Toshio Takahata
CPC分类号： F02D41/18 , F02D41/045 , F02D41/2496
摘要： The throttle valve position of an engine is sensed and the effective cross sectional area of the induction passage is determined via table look-up. The table is recorded in terms of three parameters. The value thus derived is divided by the engine speed of alternatively a product of the engine speed and the engine displacement. A basic air induction quantity is then determined via table look-up and is subsequently modified using a correction coefficient to allow for the effect of engine speed on the same. The effect of injector position (viz., multi-point injection/single point injection) and/or the provision of a swirl control valve can be additionally taken into consideration via the use of suitable algorithms or additional two and three parameter system tables. If an idle control by-pass passage is provided, the effect of the opening degree is considered when determining the effective cross-section of the induction passage.
摘要翻译： 检测发动机的节气门位置，并通过表查找来确定感应通道的有效截面面积。 该表以三个参数记录。 这样得到的值除以发动机转速和发动机排量的乘积的发动机转速。 然后通过表查找确定基本的空气感应量，并且随后使用校正系数进行修改以允许发动机转速对其的影响。 可以通过使用合适的算法或附加的两个和三个参数系统表来额外考虑喷射器位置（即多点喷射/单点喷射）和/或提供旋流控制阀的效果。 如果提供怠速控制旁通通道，则在确定进气通道的有效截面时考虑开度的影响。
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3.发明授权
公开(公告)号：US4892072A
公开(公告)日：1990-01-09
申请号：US195975
申请日：1988-05-19
CPC分类号： F02D41/18 , F02D41/32 , G01F1/00 , G01F1/24 , G01F15/046
摘要： A system for measuring intake air amount to be introduced into an engine cylinder employs a throttle angle sensor as a basic intake air flow amount indicative factor. Basic intake air flow amount is derived on the basis of a throttle valve angular position and an engine speed. The basic intake air flow amount is corrected with taking delay factor to introduce the intake air past the throttle valve into the engine cylinder, and a temperature dependent factor compensating variation of air density depending upon the temperature condition.
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公开(公告)号：US4949694A
公开(公告)日：1990-08-21
申请号：US343204
申请日：1989-04-26
IPC分类号： F02D41/10
CPC分类号： F02D41/10
摘要： In order to obviate the delay between a demand for transitory engine operation and the injection of the appropriate amount of fuel, an initial correction pulse width is generated in response to the change in throttle valve position is added to a basic width which is developed based on the output of an air flow meter located in an upstream section of the induction conduit. The system further provides for continuously updating correction factors which are applied to the throttle sensor to ensure linearity and generating weighting factors and the like which are appropriately applied to improve the air-fuel control.
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公开(公告)号：US5887568A
公开(公告)日：1999-03-30
申请号：US893717
申请日：1997-07-11
CPC分类号： F02P5/1502 , Y02T10/46
摘要： A predetermined firing delay time B.sub.1 is added to a value obtained by dividing a total gas weight Gcyl in a cylinder by an unburnt gas density basic value DENS and a laminar flow flame velocity basic value FLML. The value obtained by this calculation is unit converted and then set as a basic ignition timing for which a minimum ignition advance value or MBT is obtained. In this way, ignition timing control is optimized for various engine running conditions without preparing a plurality of maps.
摘要翻译： 将预定的点火延迟时间B1加到通过将气缸中的总气体重量Gcyl除以未燃气体密度基础值DENS和层流火焰速度基本值FLML而获得的值。 通过该计算获得的值被单位转换，然后设定为获得最小点火提前值或MBT的基本点火正时。 以这种方式，对于各种发动机运行条件，点火正时控制被优化，而不需要准备多个地图。
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公开(公告)号：US20060075996A1
公开(公告)日：2006-04-13
申请号：US11240641
申请日：2005-10-03
CPC分类号： F02D13/0238 , F01L1/022 , F01L1/344 , F01L13/0026 , F01L2013/0073 , F01L2800/00 , F01L2820/032 , F02D13/0207 , F02D41/0002 , F02D2041/001 , F02D2200/0402 , Y02T10/18 , Y02T10/42
摘要： An internal combustion engine control apparatus basically comprises a reference intake air quantity calculating section, a maximum intake air quantity calculating section and an engine control section. The reference intake air quantity calculating section is configured to calculate a reference intake air quantity corresponding to when an intake air is taken in as a sonic flow. The maximum intake air quantity calculating section is configured to calculate a theoretical maximum intake air quantity. The engine control section is configured to control the engine by using an intake air quantity function between a first value obtained by dividing the reference intake air quantity by the maximum intake air quantity and a second value obtained by dividing an actual intake air quantity corresponding to the valve characteristics of the intake valve by the maximum intake air quantity.
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公开(公告)号：US20050051147A1
公开(公告)日：2005-03-10
申请号：US10895426
申请日：2004-07-21
申请人： Hatsuo Nagaishi , Takashi Nakazawa , Kazuhiko Abe , Yuji Sasaki
发明人： Hatsuo Nagaishi , Takashi Nakazawa , Kazuhiko Abe , Yuji Sasaki
CPC分类号： F02D41/1458 , F02D13/0223 , F02D13/0226 , F02D41/047 , F02D41/10 , F02D41/12 , F02D41/1446 , F02D41/1454 , F02D41/187 , F02D2041/001 , F02D2200/0402 , F02D2200/0406 , F02D2200/0414 , F02D2200/0614 , F02D2200/0625 , F02D2200/0802 , F02D2200/602 , F02D2200/703
摘要： An intake port (4) is connected to a combustion chamber (6) of an internal combustion engine (1) via an intake valve (15), and a volatile liquid fuel is injected from a fuel injector (21) provided in the intake port (4). The controller (31) calculates a suspension ratio in the combustion chamber (5) of the injected fuel according to the particle diameter of the injected fuel (52-56), calculates an amount of fuel burnt in the combustion chamber (6) based on the suspension ratio (57), calculates a target fuel injection amount based on the burnt fuel amount (75, 76), and controls a fuel injection amount of the fuel injector (21) based on the target fuel injection amount (76). Precise fuel injection control can be performed without performing adaptation experiments, based on particle diameter data for different fuel injectors by taking the particle diameter as a parameter.
摘要翻译： 进气口（4）经由进气阀（15）与内燃机（1）的燃烧室（6）连接，并且从设置在进气口（14）内的燃料喷射器（21）喷射挥发性液体燃料 （4）。 控制器（31）根据喷射燃料（52-56）的粒径计算喷射燃料的燃烧室（5）中的悬浮比，计算燃烧室（6）中燃烧的燃料量，基于 暂停率（57）基于燃烧燃料量（75,76）计算目标燃料喷射量，并且基于目标燃料喷射量（76）来控制燃料喷射器（21）的燃料喷射量。 通过以粒径为参数，可以基于不同燃料喷射器的粒径数据进行精确的燃料喷射控制，而不进行适应性实验。
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8.发明授权Unthrottled intake air control with partial delay for requested engine response performance 有权无节制的进气控制，部分延迟要求发动机响应性能公开(公告)号：US06513490B2
公开(公告)日：2003-02-04
申请号：US09727787
申请日：2000-12-04
申请人： Takao Kawasaki , Masahiro Arai , Hatsuo Nagaishi
发明人： Takao Kawasaki , Masahiro Arai , Hatsuo Nagaishi
IPC分类号： F02D4100
CPC分类号： F02D13/0234 , F01L9/04 , F01L2201/00 , F02D13/0203 , F02D13/0253 , F02D41/0002 , F02D41/083 , F02D43/00 , F02D45/00 , F02D2041/001 , F02D2041/002 , Y02T10/18 , Y02T10/42
摘要： A system and method for unthrottled intake air control for an internal combustion engine. The engine has at least one combustion chamber provided with electromagnetic intake means. The opening and closing times of the intake means are adjustable entirely independently from the crankshaft position to control intake air supplied to the combustion chamber. A control unit is used to implement instructions for determining a first portion of requested intake airflow, which first portion requests a first engine response performance, and instructions for determining a second portion of requested intake airflow, which second portion requests a second engine response performance. The control unit implements instructions for processing the first and second airflow portions to make contributions to the first and second engine response performances, respectively, instructions for determining an intake means activation command, and instructions for providing the intake means activation command to the intake means to provide an engine response performance combining the first engine response performance with the second engine response performance.
摘要翻译： 一种用于内燃机的无节流进气调节的系统和方法。 发动机具有设置有电磁进气装置的至少一个燃烧室。 进气装置的打开和关闭时间可以完全独立于曲轴位置进行调节，以控制供给燃烧室的进气。 控制单元用于实现用于确定所请求的进气量的第一部分的指令，该第一部分请求第一发动机响应性能，以及用于确定所请求的进气流的第二部分的指令，该第二部分请求第二发动机响应性能。 控制单元执行用于处理第一和第二气流部分以分别对第一和第二发动机响应性能做出贡献的指令，分别用于确定进气装置启动命令的指令和用于将进气装置启动命令提供给进气装置的指令 提供将第一发动机响应性能与第二发动机响应性能相结合的发动机响应性能。
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9.发明授权公开(公告)号：US06397814B1
公开(公告)日：2002-06-04
申请号：US09299098
申请日：1999-04-26
申请人： Hatsuo Nagaishi , Keisuke Fujiwara
发明人： Hatsuo Nagaishi , Keisuke Fujiwara
IPC分类号： F02D1110
CPC分类号： F02D13/0234 , F01L25/08 , F02D11/105 , F02D13/0207 , F02D13/0253 , F02D41/0002 , F02D2041/001 , F02D2041/002 , Y02T10/18 , Y02T10/42
摘要： In a control apparatus and method for controlling an intake air quantity for an internal combustion engine, a throttle position of a throttle valve installed in an intake system of the engine is controlled in such a manner that an intake pressure around the throttle valve (pressure difference between upstream and downstream sides of the throttle valve or a ratio of a pressure between the upstream and downstream sides of the throttle valve) is maintained constant at an approximately predetermined negative pressure under a predetermined (low) engine load condition and a valve closure timing of at least one intake valve installed to open and close each corresponding combustion chamber of the engine is simultaneously controlled to regulate an intake air quantity supplied to the engine under the predetermined (low) engine load condition.
摘要翻译： 在用于控制内燃机的进气量的控制装置和方法中，安装在发动机的进气系统中的节流阀的节气门位置被控制为使得节气门周围的进气压力（压力差 在节气门的上游侧和下游侧之间或节流阀的上游侧和下游侧之间的压力比）在预定的（低）发动机负载条件下保持恒定在大致预定的负压，并且阀闭合正时 同时控制安装以打开和关闭发动机的每个对应的燃烧室的至少一个进气门，以调节在预定（低）发动机负载条件下供应到发动机的进气量。
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公开(公告)号：US5690086A
公开(公告)日：1997-11-25
申请号：US716844
申请日：1996-09-10
CPC分类号： F02D41/1483 , F02D41/0045 , F02D41/0042 , F02M25/08
摘要： An apparatus for use with an internal combustion engine having a fuel vapor trap from which fuel vapor is purged into the engine through a purge passage having a purge control valve provided therein. The purge control valve is controlled to permit fuel vapor purge through the purge passage based on the existing engine operating conditions. An air/fuel ratio feedback control correction factor is calculated to correct the air/fuel ratio within a predetermined range based on the air/fuel ratio of the mixture supplied to the engine. A gain value is calculated based on a deviation between the air/fuel ratio feedback correction factor calculated with the fuel vapor purge and the air/fuel ratio feedback correction factor calculated without the fuel vapor purge and a purge rate of the fuel vapor flow rate to the intake air flow rate. The calculated gain values are stored in a memory in respective memory locations addressable by different fuel vapor amounts. The calculated gain value is stored in the memory in a memory location corresponding to the sensed fuel vapor amount to update a gain value stored previously in the memory location. A gain value is read from the memory location corresponding to the fuel vapor amount. The amount of fuel supplied to the engine is controlled according to a target value calculated based on the read gain value and the engine operating conditions.
摘要翻译： 一种与具有燃料蒸气阱的内燃机一起使用的装置，燃料蒸气通过具有设置在其中的清洗控制阀的吹扫通道从燃料蒸气排出到发动机中。 根据现有的发动机工作条件，控制清洗控制阀以允许通过吹扫通道的燃料蒸汽吹扫。 计算空气/燃料比反馈控制校正系数，以基于供给到发动机的混合物的空燃比来校正在预定范围内的空燃比。 基于由燃料蒸气吹扫计算出的空燃比反馈校正因子与没有燃料蒸气吹扫计算出的空燃比反馈校正因子和燃料蒸汽流量的吹扫率之间的偏差计算增益值 进气流量。 所计算的增益值被存储在可由不同燃料蒸汽量寻址的相应存储器位置的存储器中。 将计算出的增益值存储在与检测到的燃料蒸汽量对应的存储位置的存储器中，以更新先前存储在存储器位置中的增益值。 从对应于燃料蒸气量的存储位置读取增益值。 根据基于读取增益值和发动机工作条件计算的目标值来控制供给发动机的燃料量。
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