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1. 发明授权

US4915080A Electronic air-fuel ratio control apparatus in internal combustion engine 失效
标题翻译：内燃机电子空燃比控制装置
公开(公告)号：US4915080A
公开(公告)日：1990-04-10
申请号：US246746
申请日：1988-09-20
申请人： Shinpei Nakaniwa , Akira Uchikawa
发明人： Shinpei Nakaniwa , Akira Uchikawa
IPC分类号： F02D41/14
CPC分类号： F02D41/1475 , F02D41/146 , F02D41/1456
摘要： An electronic air-fuel ratio control apparatus in an internal combustion engine provided with an oxygen sensor emitting an output voltage in response to an oxygen concentration including the same in nitrogen oxides in an exhaust gas from the engine which controls an air-fuel ratio of an air-fuel mixture by a feedback correction-control based on a oxygen sensor having the nitrogen oxides-reducing catalytic layer, the detection of a theoretical air-fuel ratio is performed on a richer side comparing with the output on the detection of a theoretical air-fuel ratio by an oxygen sensor without the nitrogen oxides-reducing function and is not changed even though the nitrogen oxides concentration changes. Accordingly the feedback air-fuel ratio control operates to decrease the amount of nitrogen oxides and to stabilize the air-fuel ratio control. A first target air-fuel ratio for the air-fuel ratio feedback control is changed to a second target air-fuel ratio which is richer than the first target air-fuel ratio at least when the high nitrogen oxide concentration in the exhaust gas is detected thereby changing of the controlled air-fuel ratio to the too much lean side is avoided.

2. 发明授权

US4878473A Internal combustion engine with electronic air-fuel ratio control apparatus 失效
标题翻译：具有电子空燃比控制装置的内燃机
公开(公告)号：US4878473A
公开(公告)日：1989-11-07
申请号：US250261
申请日：1988-09-28
申请人： Shinpei Nakaniwa , Akira Uchikawa
发明人： Shinpei Nakaniwa , Akira Uchikawa
IPC分类号： F02D41/14
CPC分类号： F02D41/1475 , F02D41/146
摘要： An electronic air-fuel ratio control apparatus in an internal combustion engine provided with an oxygen sensor emitting an output voltage in response to an oxygen concentration including the oxygen in nitrogen oxides in an exhaust gas from the engine. The apparatus controls the air-fuel ratio of an air-fuel mixture by a feedback correction-control based on a fuel injection quantity in an on-off manner. By using an oxygen sensor having a nitrogen oxides-reducing catalytic layer, the detection of a theoretical air-fuel ratio is performed on a richer side compared to the output on the detection of a theoretical air-fuel ratio by an oxygen sensor without the nitrogen oxides-reducing function, and is not changed even through the nitrogen oxides concentration changes. Accordingly, the feedback air-fuel ratio control acts to decrease the amount of nitrogen oxides so as to stabilixe the air-fuel ratio control. A first target air-fuel ratio for the air-fuel ratio feedback control is changed to a second target air-fuel ratio, which is richer than the first target air-fuel ratio when a high nitrogen oxide conentration in the exhaust gas is detected, or which is leaner than the first target air-fuel ratio when a high imcompletely burnt component concentration in the exhaust gas is detected.

3. 发明授权

US5099817A Process and apparatus for learning and controlling air/fuel ratio in internal combustion engine 失效
标题翻译：在内燃机中学习和控制空气/燃料比的过程和装置
公开(公告)号：US5099817A
公开(公告)日：1992-03-31
申请号：US622237
申请日：1990-12-06
申请人： Shinpei Nakaniwa
发明人： Shinpei Nakaniwa
IPC分类号： F02D45/00 , F02D41/14
CPC分类号： F02D41/2477 , F02D41/2454
摘要： Disclosed are a process and apparatus for learning and controlling the air/fuel ratio in an internal combustion engine, in which a feedback correction value for correcting a basic fuel supply quantity to bring the air/fuel ratio of an air/fuel mixture sucked in the engine close to the target air/fuel ratio is set and a learning correction value for each of driving regions is learned so as to reduce the deviation of the feedback correction value from the target convergent value, and in this control of learning and correcting the air/fuel ratio, the target convergent value is variably set based on engine-driving conditions and the like so that the basic air/fuel ratio obtained without feedback correction can be optionally changed.

4. 发明授权

US4957083A Fuel supply control system for internal combustion engine with feature providing engine stability in low engine load condition 失效
标题翻译：内燃机燃料供应控制系统，具有发动机在低发动机负荷条件下的稳定性
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。

5. 发明授权

US4889100A Fuel injection control system for multi-cylinder internal combustion engine with feature of improved response characteristics to acceleration enrichment demand 失效
标题翻译：用于多缸内燃机的燃油喷射控制系统，具有改进的响应特性，具有加速浓缩需求
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。

6. 发明授权

US5261078A System for transferring data between program development computer and control unit via specific memory addresses of interface computer 失效
标题翻译：用于通过接口计算机的特定存储器地址在程序开发计算机和控制单元之间传送数据的系统
公开(公告)号：US5261078A
公开(公告)日：1993-11-09
申请号：US560774
申请日：1990-07-31
申请人： Shinpei Nakaniwa , Hirohisa Nashima
发明人： Shinpei Nakaniwa , Hirohisa Nashima
IPC分类号： G05B15/02 , G06F11/36 , G06F15/16
CPC分类号： G06F11/3664
摘要： A development computer or first computer provided with a program development-supporting tool for checking an operation of a new control program written by a high-level language is disposed independently from a computer to be developed or second computer. Control based on a new control program written in a high-level language for the computer to be developed or second computer is executed by outputting the result of processing of the new control program by the development computer into the computer to be developed or second computer.

7. 发明授权

US5227975A Air/fuel ratio feedback control system for internal combustion engine 失效
标题翻译：用于内燃机的空气/燃油比反馈控制系统
公开(公告)号：US5227975A
公开(公告)日：1993-07-13
申请号：US599223
申请日：1990-10-18
申请人： Shinpei Nakaniwa
发明人： Shinpei Nakaniwa
IPC分类号： F02B75/02 , F02D41/14
CPC分类号： F02D41/1483 , F02D41/1474 , F02D41/1495 , F02B2075/027 , F02D2041/1409 , F02D41/1404 , F02D41/1456
摘要： An air/fuel ratio feedback control system for an internal combustion engine sets an air/fuel ratio feedback correction coefficient on the basis of an air/fuel ratio for an air/fuel mixture introduced into a combustion chamber of the engine, to cause the air/fuel ratio to approach a set point thereof. The correction coefficient consists of a rich control proportional component P.sub.R, a lean control proportional component P.sub.L and an integral component I. When the air/fuel ratio set by the feedback control system deviates from an initial set point (the stoichiometric value) due to deterioration of an oxygen sensor for detecting the air/fuel ratio, the feedback control system compensates for the deviation to cause the air/fuel ratio to approach the initial set point, by varying a ratio of the rich control proportional component P.sub.R to the lean control proportional component P.sub.L in accordance with magnitudes of rich and lean detection levels, or by correcting a balance between the rich and lean control proportional components P.sub.R and P.sub.L on the basis of a relationship between signal level varying speeds of the proportional components P.sub.R and P.sub.L, a relationship between rich and lean control times, a relationship between rich and lean detection levels or the like.

8. 发明授权

US5126943A Learning-correcting method and apparatus and self-diagnosis method and apparatus in fuel supply control system of internal combustion engine 失效
标题翻译：内燃机燃料供应控制系统的学习修正方法及装置及自诊断方法及装置
公开(公告)号：US5126943A
公开(公告)日：1992-06-30
申请号：US540008
申请日：1990-06-19
申请人： Shinpei Nakaniwa
发明人： Shinpei Nakaniwa
IPC分类号： F02D41/00 , F02D41/14 , F02D41/22 , F02D41/34 , F02D41/36
CPC分类号： F02D41/008 , F02D41/22 , F02D41/2445 , F02D41/2454 , F02D41/248 , F02D41/0085 , F02D41/1456
摘要： In a fuel supply control system of an internal combustion engine having a function of feedback-controlling the air-fuel ratio, dispersions of the fuel supply characteristics in respective cylinders are corrected by changes of the air-fuel ratio by the correction of the fuel supply quantity. Factors causing the deviations of the air-fuel ratio are independently compensated by learning the correction value for correcting the fuel supply quantity only at a certain ratio and the correction value for correcting the fuel supply quantity only by a certain quantity so that these correction values are commonly fit for at least two different driving conditions.
摘要翻译：在具有反馈控制空燃比的功能的内燃机的燃料供给控制系统中，通过燃料供给的校正来校正各气缸中的燃料供给特性的分散数量。通过仅以一定比例学习用于校正燃料供给量的校正值和仅校正燃料供给量的一定量的校正值来独立地补偿导致空燃比偏差的因素，使得这些校正值为通常适合至少两种不同的驾驶条件。

9. 发明授权

US4951635A Fuel injection control system for internal combustion engine with compensation of overshooting in monitoring of engine load 失效
标题翻译：用于内燃机的燃油喷射控制系统，在发动机负荷监测时补偿过冲
公开(公告)号：US4951635A
公开(公告)日：1990-08-28
申请号：US217861
申请日：1988-07-12
申请人： Shinpei Nakaniwa , Akihiko Araki , Yukio Hoshino
发明人： Shinpei Nakaniwa , Akihiko Araki , Yukio Hoshino
IPC分类号： F02D41/00 , F02D41/04 , F02D41/10
CPC分类号： F02D41/045 , F02D41/10
摘要： A fuel injection control system derives a correction coefficient for compensating overshooting component in measurement of an engine load indicative parameter, such as an intake air flow rate. The correction coefficient may be variable in such a manner that it increases according to increasing of the engine load. The correction coefficient may be used for correcting either the measured engine load parameter or the fuel injection amount derived taking the measured engine load.
摘要翻译：燃料喷射控制系统导出用于补偿发动机负载指示参数（例如进气流量）的测量中的过冲分量的校正系数。校正系数可以根据发动机负载的增加而增加。校正系数可以用于校正所测量的发动机负载参数或者根据测量的发动机负载导出的燃料喷射量。

10. 发明授权

US5050084A Method and apparatus for controlling supply of fuel into internal combustion engine 失效
标题翻译：用于控制向内燃机供应燃料的方法和装置
公开(公告)号：US5050084A
公开(公告)日：1991-09-17
申请号：US473032
申请日：1990-01-31
申请人： Shinpei Nakaniwa
发明人： Shinpei Nakaniwa
IPC分类号： F02D41/00 , F02D41/04 , F02D41/10 , F02D41/12 , F02D41/34 , F02D41/36
CPC分类号： F02D41/008 , F02D41/045 , F02D41/107 , F02D41/126
摘要： In the control of the sequential fuel injection in an internal combustion engine, where the engine load is set based on the opening of the throttle valve and the engine revolution number and the quantity of correction of the fuel supply quantity is determined based on the ratio of the change of this engine load and the time up to a predetermined time during the intake stroke, this time is computed for each cylinder and the correction quantity is set individually for the respective cylinders.
摘要翻译：在根据节流阀的开度设定发动机负荷和发动机转速的内燃机的顺序燃料喷射的控制中，根据燃料供给量的校正量来确定燃料供给量的修正量该引擎负载的变化和在进气冲程期间达到预定时间的时间，对于每个气缸计算此次，并且针对各个气缸分别设定校正量。

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