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1. 发明授权

US4858136A Method of and apparatus for controlling fuel injection quantity for internal combustion engine 失效
标题翻译：用于控制内燃机燃油喷射量的方法和装置
公开(公告)号：US4858136A
公开(公告)日：1989-08-15
申请号：US947385
申请日：1986-12-29
申请人： Yoshiyuki Tanaka , Akira Ii , Taiichi Meguro , Kenji Hayashi
发明人： Yoshiyuki Tanaka , Akira Ii , Taiichi Meguro , Kenji Hayashi
IPC分类号： F02D41/04 , F02D41/32
CPC分类号： F02D41/32 , F02D41/045
摘要： A method of and apparatus for controlling a fuel injection quantity for an internal combustion engine wherein the fuel injection quantity is controlled on the basis of both an intake-pipe pressure and a rotational speed of the engine. The output of a pressure sensor for detecting the intake-pipe pressure is processed by a CR filter having a time constant which enables removal of a pulsating component of the intake-pipe pressure. The output of the CR filter is relaxed to calculate a first weighted mean value with a relatively low degree of relaxation and a second weighted mean value with a relatively high degree of relaxation. The second weighted mean value is subtracted from the first weighted mean value, and an incremental/decremental quantity is determined on the basis of the result of the subtraction. The synchronous fuel injection quantity during acceleration or deceleration is corrected by the incremental/decremental quantity, and during acceleration the fuel is injected asynchronously on the basis of the incremental/decremental quantity.
摘要翻译：用于控制内燃机的燃料喷射量的方法和装置，其中基于发动机的进气管压力和转速来控制燃料喷射量。用于检测进气管压力的压力传感器的输出由具有能够消除进气管压力的脉动分量的时间常数的CR滤波器处理。松弛CR滤波器的输出，以计算具有较低松弛程度的第一加权平均值和具有相对高的松弛程度的第二加权平均值。从第一加权平均值减去第二加权平均值，并且基于减法的结果确定增量/减量。加速或减速期间的同步燃料喷射量通过增量/减量量进行校正，在加速期间，根据增量/减量量异步喷射燃料。

2. 发明授权

US5381658A Diagnostic apparatus for use in an exhaust system of an internal combustion engine 失效
标题翻译：用于内燃机排气系统的诊断装置
公开(公告)号：US5381658A
公开(公告)日：1995-01-17
申请号：US146551
申请日：1993-11-02
申请人： Taiichi Meguro
发明人： Taiichi Meguro
IPC分类号： F01N3/22 , F01N9/00 , F01N11/00 , F02D35/00
CPC分类号： F01N9/007 , F01N11/007 , F02D35/0038 , F01N2550/14 , Y02T10/47
摘要： A diagnostic apparatus for use in an exhaust system of an internal combustion engine is disclosed. The system has a catalyst for purifying the exhaust gas in the exhaust gas passage and an oxygen sensor for detecting an air-fuel ratio in a combustion chamber, wherein fuel injection volume is controlled for optimizing the air-fuel ratio and the catalyst activation when the engine is operated under normal conditions, and wherein secondary air is supplied to the exhaust gas passage from a secondary air supply mechanism for forcibly adjusting the air-fuel ratio when the engine is operating under extreme conditions. The apparatus has a computing device which computes an actual volume of the secondary air supplied to the exhaust gas passage from the secondary air supply mechanism. The apparatus further has a storing device which stores data indicative of malfuncting secondary air supply mechanism members corresponding to the computed volume supplied to the exhausted gas passage, and a determining device for determining the malfunctioning member in accordance with the value detected by the oxygen sensor and the stored data corresponding the detected value.
摘要翻译：公开了一种用于内燃机排气系统的诊断装置。该系统具有用于净化废气通道中的废气的催化剂和用于检测燃烧室中的空燃比的氧传感器，其中控制燃料喷射量以优化空燃比和催化剂活化发动机在正常条件下运行，并且其中二次空气从二次空气供应机构供应到废气通道，用于当发动机在极端条件下运行时强制调节空燃比。该装置具有计算装置，其计算从二次空气供给机构供给至废气通道的二次空气的实际体积。该装置还具有存储装置，该存储装置存储表示与供给到排气通路的计算出的体积对应的不正常的二次空气供给机构部件的数据，以及根据由氧传感器检测出的值确定故障部件的判定装置，所存储的数据对应于检测到的值。

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