公开(公告)号：US4911131A

公开(公告)日：1990-03-27

申请号：US230387

申请日：1988-08-10

申请人： Shinpei Nakaniwa ,  Seiichi Otani ,  Naoki Tomisawa ,  Yukio Hoshino ,  Syouzi Furuhashi ,  Tadashi Ariga

发明人： Shinpei Nakaniwa ,  Seiichi Otani ,  Naoki Tomisawa ,  Yukio Hoshino ,  Syouzi Furuhashi ,  Tadashi Ariga

IPC分类号： F02D41/00 ,  F02D41/10 ,  F02D41/34 ,  F02D41/36

CPC分类号： F02D41/008 ,  F02D41/10 ,  F02D41/36 ,  Y02T10/44

摘要： An apparatus for use with a multi-cylinder internal combustion engine including a plurality of fuel injectors, each being operable in its open position for injecting fuel into an intake port with which an intake valve is in cooperation for regulating the entry of combustion ingredients into the corresponding cylinder. The apparatus includes a control circuit for operating the fuel injectors in a predetermined sequence. The control circuit determines a length of time one fuel injector to be operated is in its open position in response to selected engine operating conditions. The control circuit opens the one fuel injector at a time to terminate the determined time length substantially at the same time when the corresponding intake valve opens. In addition, the control circuit prolongs the determined time length in response to a demand for engine acceleration produced when the one fuel injector is in its open position.

摘要翻译： 一种与包括多个燃料喷射器的多气缸内燃机一起使用的装置，每个燃料喷射器可在其打开位置操作，用于将燃料喷射到进气口中，进气阀与进气口配合用于调节燃烧成分进入 相应的气缸。 该装置包括用于以预定顺序操作燃料喷射器的控制电路。 控制电路响应于所选择的发动机操作条件确定要操作的一个燃料喷射器处于其打开位置的时间长度。 控制电路一次打开一个燃料喷射器，以基本上在相应的进气门打开的同时终止确定的时间长度。 此外，控制电路响应于当一个燃料喷射器处于其打开位置时产生的对发动机加速的需求而延长确定的时间长度。

公开(公告)号：US4817572A

公开(公告)日：1989-04-04

申请号：US89788

申请日：1987-08-27

申请人： Shinpei Nakaniwa ,  Yukio Hoshino ,  Naoki Tomisawa ,  Seiichi Otani ,  Tadashi Ariga ,  Shouji Furuhashi

发明人： Shinpei Nakaniwa ,  Yukio Hoshino ,  Naoki Tomisawa ,  Seiichi Otani ,  Tadashi Ariga ,  Shouji Furuhashi

IPC分类号： F02D41/04 ,  F02D41/10 ,  F02D41/18 ,  F02D41/34

CPC分类号： F02D41/10 ,  F02D41/045 ,  F02D41/182

摘要： An electronically controlled fuel injection device for an internal combustion engine during engine acceleration determines a basic amount of injected fuel based on the amount of intake airflow detected by an airflow meter and the engine velocity until the portion filled into the intake air manifold is detected, and then a basic amount of injected fuel based on the data of intake airflow which has been recorded excluding the portion filled into the intake air manifold.

摘要翻译： 在发动机加速期间用于内燃机的电子控制燃料喷射装置基于由气流计检测到的进气气流量和发动机速度确定喷射燃料的基本量，直到检测到填充到进气歧管中的部分，以及 然后基于除了填充到进气歧管中的部分之外已经记录的进气气流的数据的基本喷射燃料量。

公开(公告)号：US4831987A

公开(公告)日：1989-05-23

申请号：US89784

申请日：1987-08-27

申请人： Shinpei Nakaniwa ,  Yukio Hoshino ,  Naoki Tomisawa ,  Seiichi Otani ,  Tadashi Ariga ,  Shouji Furuhashi

发明人： Shinpei Nakaniwa ,  Yukio Hoshino ,  Naoki Tomisawa ,  Seiichi Otani ,  Tadashi Ariga ,  Shouji Furuhashi

IPC分类号： F02D41/04 ,  F02D41/10 ,  F02D41/18

CPC分类号： F02D41/182 ,  F02D41/045 ,  F02D41/10

摘要： A setting device of basic fuel injection amount for an internal combustion engine in an operating region of acceleration comparing a detected amount of intake airflow with a retrieved amount of intake airflow stored with the area of opening of a throttle valve and the engine velocity used as parameter, and when the detected amount is less than the retrieved amount, modifying the detected amount on the basis of the change ratio of opening area in the throttle valve, the engine load and the engine velocity, thereby modifying the detected amount so that it is close to the amount required by the engine.

摘要翻译： 一种内燃机的基本燃料喷射量的设定装置，其特征在于，在检测到的进气气流量与检测到的节流阀开度所存储的进气气流量相对应的加速度的运转区域和作为参数的发动机转速 并且当检测量小于检索量时，根据节气门开启面积的变化率，发动机负荷和发动机速度来修正检测量，由此修正检测量使其接近 达到发动机所需的量。

公开(公告)号：US4889100A

公开(公告)日：1989-12-26

申请号：US135364

申请日：1987-12-21

申请人： Shinpei Nakaniwa ,  Seiichi Otani ,  Toru Hamada ,  Masanobu Osaki ,  Yukio Hoshino ,  Naoki Tomisawa

发明人： Shinpei Nakaniwa ,  Seiichi Otani ,  Toru Hamada ,  Masanobu Osaki ,  Yukio Hoshino ,  Naoki Tomisawa

IPC分类号： F02D41/10 ,  F02D41/34

CPC分类号： F02D41/105 ,  F02D41/345 ,  Y02T10/44

摘要： A fuel injection control system is directed for a sequential injection type fuel injection internal combustion engine for injecting fuel for each engine cylinder at different timing. Acceleration enrichment asynchroneous fuel injection is initiated in response to an acceleration demand. Acceleration enrichment is further performed for subsequent given injection cycles for compensation of smaller engine load indicative sensor signal than actual engine load due to error in an air flow meter.

摘要翻译： 燃料喷射控制系统针对用于在不同时刻为每个发动机气缸喷射燃料的顺序喷射型燃料喷射内燃机。 响应于加速需求启动加速浓缩异步燃料喷射。 对于随后给定的喷射周期，进一步执行加速度浓缩，以补偿由于空气流量计中的误差而导致的比发动机负载更小的发动机负荷指示传感器信号。

公开(公告)号：US4911132A

公开(公告)日：1990-03-27

申请号：US252977

申请日：1988-10-04

申请人： Shinpei Nakaniwa ,  Seiichi Otani ,  Toru Hamada ,  Masanobu Osaki ,  Yukio Hoshino ,  Naoki Tomisawa

发明人： Shinpei Nakaniwa ,  Seiichi Otani ,  Toru Hamada ,  Masanobu Osaki ,  Yukio Hoshino ,  Naoki Tomisawa

IPC分类号： F02D41/10 ,  F02D41/34

CPC分类号： F02D41/105 ,  F02D41/345 ,  Y02T10/44

摘要： A fuel injection control system is directed a sequential injection type fuel injection internal combustion engine for injecting fuel to each engine cylinder at different timings. Acceleration enrichment asynchronous fuel injection is initiated in response to an acceleration demand. Acceleration enrichment is further performed for subsequent injection cycles to compensate for engine load indicative sensor signals which differ from actual engine load due to errors in an air flow meter.

摘要翻译： 燃料喷射控制系统针对顺序喷射型燃料喷射内燃机，用于在不同的时刻向每个发动机气缸喷射燃料。 响应于加速需求启动加速浓缩异步燃料喷射。 进一步进行加速浓缩以用于随后的喷射循环以补偿由于空气流量计中的误差而与实际发动机负载不同的发动机负荷指示传感器信号。

公开(公告)号：US4957083A

公开(公告)日：1990-09-18

申请号：US253532

申请日：1988-10-05

申请人： Shinpei Nakaniwa ,  Naoki Tomisawa

发明人： Shinpei Nakaniwa ,  Naoki Tomisawa

IPC分类号： F02D41/04 ,  F02D31/00 ,  F02D41/00 ,  F02D41/16

CPC分类号： F02D31/002 ,  F02D31/005 ,  F02D41/16

摘要： A fuel supply control system introducing the feature of learning in assuming or projecting an intake air flow rate while an engine driving condition is maintained in a sonic flow range, in which intake air path area is maintained substantially constant and intake air flow rate is varied linearly according to variation of an engine speed. The system also detects the engine driving condition in the sonic flow range and the engine speed maintained substantially constant to derive a basic fuel supply amount on the basis of boost pressure. The assumed intake air flow rate is derived on the basis of the basic fuel supply amount and the engine speed. The system derives the basic fuel supply amount on the basis of the assumed intake air flow rate and the engine speed when the engine speed varies within the sonic flow range.

摘要翻译： 一种燃料供给控制系统，其特征在于，在将发动机驱动条件保持在声音流动范围内，进气通路面积保持基本恒定，进气流量线性变化的情况下，引入学习的特征， 根据发动机转速的变化。 该系统还在声音流量范围内检测发动机驱动条件，并且发动机转速保持基本恒定，以基于增压压力导出基本燃料供给量。 假设的进气流量是基于燃料供应量和发动机转速而得出的。 当发动机转速在声波流量范围内变化时，该系统基于假设的进气流量和发动机转速得出基本燃料供给量。

公开(公告)号：US4947816A

公开(公告)日：1990-08-14

申请号：US261887

申请日：1988-10-25

申请人： Shinpei Nakaniwa ,  Naoki Tomisawa

发明人： Shinpei Nakaniwa ,  Naoki Tomisawa

IPC分类号： F02D37/02 ,  F02D41/00 ,  F02D41/04 ,  F02D41/10 ,  F02D41/18 ,  F02D41/32 ,  F02D41/34

CPC分类号： F02D41/32 ,  F02D37/02 ,  F02D41/045 ,  F02D41/10 ,  F02D41/182 ,  F02D41/008

摘要： An engine control system introduces a technology of assuming actually required fuel amount to be delivered to each engine cylinder at opening timing of an intake valve of the engine cylinder. In order to derive the assumed fuel demand, a basic fuel supply amount is derived on the basis of a basic fuel supply control parameter including an engine speed data and an intake air amount representative data, an air induction path area variation ratio data and a lag time data from derivation of the air induction path area variation ratio data to opening of the intake valve. The assumed fuel demand data can be used not only for controlling fuel supply but also for spark ignition timing control, air/fuel ratio control and so forth so that the engine operation control may precisely follow the actual engine driving condition for optimizing the engine performance.

公开(公告)号：US4941448A

公开(公告)日：1990-07-17

申请号：US247470

申请日：1988-09-21

申请人： Shinpei Nakaniwa ,  Naoki Tomisawa

发明人： Shinpei Nakaniwa ,  Naoki Tomisawa

IPC分类号： F02D41/04 ,  F02D41/00 ,  F02D41/18 ,  F02D41/26 ,  F02D41/32

CPC分类号： F02D41/18 ,  F02D41/263 ,  F02D41/32

摘要： A fuel supply control system derives a basic induction volume efficiency on the basis of an intake air pressure and modifies the basic induction volume efficiency with a correction value which is derived on the basis of an engine revolution speed and the intake air pressure. An induction volume efficiency is derived on the basis of modified basic induction volume efficiency, which derived induction volume efficiency is used for deriving a basic fuel supply amount with the intake air pressure. The basic fuel supply amount thus derived is used for controlling fuel supply for the engine. Derivation of the basic induction volume efficiency is performed by an interrupt routine which may be executed in a predetermined timing derived depending upon a time or in synchronism with engine revolution cycle. The correction value may be derived in a background job. Since the variation range of the corrective value is relatively small versus variation of the basic induction volume efficiency, smaller capacity of memory is required even when the correction value is set in a form of a two-dimensional table. With this, the memory capacity required for setting the two-dimensional map can be small but can provide satisfactorily high precision in controlling air/fuel ratio.

摘要翻译： 燃料供给控制系统基于进气压力导出基本的感应体积效率，并且以基于发动机转速和进气压力导出的校正值来修正基本感应体积效率。 基于改进的基本感应体积效率导出感应体积效率，其导出感应体积效率用于以进气压力导出基本燃料供应量。 由此获得的基本燃料供给量用于控制发动机的燃料供给。 基本感应体积效率的推导通过中断程序执行，该中断程序可以在根据时间导出的预定定时中执行，或者与发动机转速循环同步。 校正值可以在后台作业中导出。 由于校正值的变化范围相对于基本感应体积效率的变化相对较小，因此即使校正值被设置为二维表的形式，也需要较小的存储容量。 由此，设置二维图所需的存储容量可以很小，但是可以在控制空气/燃料比方面提供令人满意的高精度。

公开(公告)号：US4655188A

公开(公告)日：1987-04-07

申请号：US768480

申请日：1985-08-08

申请人： Naoki Tomisawa ,  Shoji Furuhashi ,  Seiichi Otani

发明人： Naoki Tomisawa ,  Shoji Furuhashi ,  Seiichi Otani

IPC分类号： F02B1/04 ,  F02D41/14 ,  F02M51/00

CPC分类号： F02D41/2454 ,  F02D41/2416 ,  F02B1/04

摘要： In controlling the air-fuel ratio in an air-fuel mixture in an internal combustion engine, a pulse duty signal Tp corresponding to the basic fuel injection quantity is operated at least from the intake air flow quantity Q and the rotation speed N of the engine, a signal of a fuel injection quantity Ti corrected by adding an appropriate correction value to said Tp is applied to a pulse-controlled fuel injection apparatus. Feedback control is carried out so that the actually detected air-fuel ratio is made to follow the aimed air-fuel ratio, and the learning correction coefficient .alpha.o is operated by learning so that the correction coefficient for this feedback control is as small as possible and the operated value is given as a correction value to Tp. Since the reliability of .alpha.o is low in a driving state area where learning is not advanced, .alpha.o of the area where learning is not advanced is estimated from .alpha.o of areas where learning is advanced, whereby control of the air-fuel ratio in the transition stage between different areas is smoothened.

摘要翻译： PCT No.PCT / JP85 / 00024 Sec。 371日期1985年8月8日第 102（e）1985年8月8日PCT PCT 1月23日，PCT PCT。 第WO85 / 03329号公报 1985年9月日。在控制内燃机的空气燃料混合物中的空燃比时，至少根据进气量Q和运转基准燃料喷射量的脉冲占空比信号Tp 发动机的转速N，通过向所述Tp加上适当的校正值而校正的燃料喷射量Ti的信号被施加到脉冲控制的燃料喷射装置。 进行反馈控制，使实际检测到的空燃比达到目标空燃比，通过学习来操作学习校正系数α0，使得该反馈控制的校正系数尽可能小 并将操作值作为校正值给出。 由于在不进行学习的驾驶状态区域中α0的可靠性低，因此从学习进行的区域的α0估计未学习的区域的αo，从而可以控制空燃比 不同地区之间的过渡阶段平滑。

公开(公告)号：US5043984A

公开(公告)日：1991-08-27

申请号：US180517

申请日：1988-04-12

申请人： Naoki Tomisawa ,  Yukio Hoshino ,  Masashi Fukushima ,  Toru Hamada

发明人： Naoki Tomisawa ,  Yukio Hoshino ,  Masashi Fukushima ,  Toru Hamada

IPC分类号： F02B77/08 ,  F02D41/22 ,  F02D41/26 ,  G01R31/00 ,  G01R31/28 ,  G06F11/273

CPC分类号： G01R31/2815 ,  F02B77/08 ,  F02D41/221 ,  F02D41/266 ,  G01R31/007 ,  G06F11/2736

摘要： An inspection device is provided an inspection parameter generator generating predetermined parameter data. The parameter data is transmitted to a control unit subjecting inspection. The inspection device receives input signal from the control unit, which input signal corresponds to the parameter data input to the control unit. Both of the control unit and inspection device processes the corresponding data. The control unit feeds resultant output to the inspection device. The inspection device compares its own resultant data and the resultant output of the control unit to make judgment whether the control unit operates in normal condition or not.

摘要翻译： 检测装置具有产生预定参数数据的检查参数发生器。 将参数数据发送到进行检查的控制单元。 检查装置从控制单元接收输入信号，该输入信号对应于输入到控制单元的参数数据。 控制单元和检查装置都对相应的数据进行处理。 控制单元将结果输出馈送到检查装置。 检查装置将其自己的结果数据与控制单元的合成输出进行比较，以判断控制单元是否正常工作。