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公开(公告)号：US5732689A
公开(公告)日：1998-03-31
申请号：US606382
申请日：1996-02-23
申请人： Hiroshi Ohno , Koichi Saiki , Yukio Noda , Shusuke Akazaki , Yoshitaka Takasuka , Yusuke Hasegawa
发明人： Hiroshi Ohno , Koichi Saiki , Yukio Noda , Shusuke Akazaki , Yoshitaka Takasuka , Yusuke Hasegawa
CPC分类号： F02D41/008 , F02D41/1441 , F02D41/2454 , F02D41/2474 , F02B2275/18 , F02D41/1456 , F02D41/2477
摘要： An air-fuel ratio control system for an internal combustion engine has an air-fuel ratio sensor arranged in an exhaust passage of the engine for detecting an air-fuel ratio of exhaust gases emitted from a plurality of cylinders. An output from the air-fuel ratio sensor is sampled whenever the engine rotates through a predetermined crank angle, and sampled values of the output from the air-fuel ratio sensor are sequentially stored. An output characteristic of the air-fuel ratio sensor is detected. One of the sampled values of the output from the air-fuel ratio sensor is selected at least depending on the output characteristic of the air-fuel ratio sensor. An air-fuel ratio of a mixture supplied to each of the cylinders is estimated, separately from other ones of the cylinders, based on selected ones of the sampled values of the output from the air-fuel ratio sensor and a model representative of a behavior of the exhaust passage. The air-fuel ratio of the mixture supplied to the each of the cylinders is controlled in a feedback manner responsive to the estimated air-fuel ratio of the mixture such that the estimated air-fuel ratio of the mixture supplied to the each of the cylinders is converged to a desired air-fuel ratio.
摘要翻译： 用于内燃机的空燃比控制系统具有布置在发动机的排气通道中的空燃比传感器，用于检测从多个气缸排出的废气的空燃比。 每当发动机旋转预定的曲柄角时，对空燃比传感器的输出进行采样，依次存储来自空燃比传感器的输出的采样值。 检测空燃比传感器的输出特性。 至少根据空燃比传感器的输出特性来选择空燃比传感器的输出的取样值之一。 基于来自空燃比传感器的输出的取样值和代表行为的模型中的选定的一个来估计提供给每个气缸的混合物的空燃比与其它气缸分开地估计 的排气通道。 供给到每个气缸的混合物的空燃比以响应于混合物的估计空燃比的反馈方式进行控制，使得供给到每个气缸的混合物的估计空燃比 收敛到期望的空燃比。
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公开(公告)号：US5623913A
公开(公告)日：1997-04-29
申请号：US602286
申请日：1996-02-16
CPC分类号： F02D41/008 , F02D41/1401 , F02D41/1477 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/142 , F02D2041/1426 , F02D2041/1431 , F02D2041/1433 , F02D41/1402 , F02D41/1456
摘要： A fuel injection apparatus for internal combustion engine of this invention applies detection output of a wide-range air/fuel ratio sensor to an observer so as to estimate an air/fuel ratio of individual cylinder and, based on thus estimated air/fuel ratio, obtains an air/fuel ratio correction coefficient for individual cylinder and correctively controls the fuel injection amount for individual cylinder with the air/fuel ratio correction coefficient for individual cylinder. While the estimation processing of the observer is always continued, the air/fuel ratio correction coefficient for individual cylinder is automatically adjusted, for example, when the estimated air/fuel ratio becomes an abnormal value, according to operational condition of the internal combustion engine, and the like, thereby securing the stability in the corrective control and preventing the emission from deteriorating. Also, the calculation processing of the air/fuel ratio correction coefficient for individual cylinder is thinned out at a predetermined timing in response to increase in the engine speed, for example, to shorten the corrective control, thereby achieving the purification of the exhaust gas even when the internal combustion engine is at a high speed.
摘要翻译： 本发明的内燃机的燃料喷射装置将大范围的空气/燃料比传感器的检测输出应用于观测者，以估计各个气缸的空燃比，并且基于这样估计的空气/燃料比， 获得单个气缸的空燃比校正系数，并且对各个气缸的空燃比校正系数进行各个气缸的燃料喷射量的校正。 在观察者的估计处理总是持续的情况下，根据内燃机的运转状态，例如当估计的空气/燃料比成为异常值时，自动调节各气缸的空燃比校正系数， 从而确保了校正控制中的稳定性并防止了排放的恶化。 此外，响应于发动机转速的增加，单个气缸的空燃比校正系数的计算处理在预定定时被稀疏，例如缩短校正控制，从而实现排气的均匀化，甚至 当内燃机处于高速时。
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公开(公告)号：US20060254265A1
公开(公告)日：2006-11-16
申请号：US11413091
申请日：2006-04-28
申请人： Akira Odajima , Yuzuru Koike , Yoshitaka Takasuka , Atsushi Izumiura , Hiroshi Nagashima , Kiyoshi Saito
发明人： Akira Odajima , Yuzuru Koike , Yoshitaka Takasuka , Atsushi Izumiura , Hiroshi Nagashima , Kiyoshi Saito
IPC分类号： F01N3/00
CPC分类号： F01N9/002 , F01N3/0821 , F01N3/0842 , F01N11/002 , F01N13/009 , F01N2550/04 , F01N2560/06 , F02B37/00 , F02D41/029 , F02D41/22 , F02D2200/0812 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine, having a filter for trapping particulates in exhaust gases from the engine, is disclosed. A first particulate amount indicates an amount of particulates to be trapped by the filter and is calculated according to an operating condition of the engine. A second particulate amount indicates an amount of particulates trapped by the filter and is calculated according to a temperature of the filter when a filter regeneration of burning the particulates trapped by the filter is performed. The first particulate amount is compared with the second particulate amount, and a failure determination of the filter is performed according to a result of the comparison.
摘要翻译： 公开了一种用于内燃机的废气净化装置，其具有用于捕获来自发动机的废气中的微粒的过滤器。 第一颗粒量表示由过滤器捕获的微粒量，并根据发动机的运行状况来计算。 第二颗粒量表示当进行过滤器捕获的微粒的过滤器再生时，由过滤器捕获的微粒的量根据过滤器的温度计算。 将第一颗粒量与第二颗粒量进行比较，并根据比较结果进行过滤器的故障判定。
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公开(公告)号：US20060196167A1
公开(公告)日：2006-09-07
申请号：US11368527
申请日：2006-03-07
申请人： Akira Odajima , Yuzuru Koike , Yoshitaka Takasuka , Atsushi Izumiura , Hiroshi Nagashima , Kiyoshi Saito
发明人： Akira Odajima , Yuzuru Koike , Yoshitaka Takasuka , Atsushi Izumiura , Hiroshi Nagashima , Kiyoshi Saito
CPC分类号： F01N11/002 , F01N13/009 , F01N13/0093 , F01N2550/04 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine including a first filter and a second filter. The first filter traps particulates in exhaust gases from said engine. The second filter is provided for failure detection and disposed downstream of the first filter. The trapping state of the second filter is detected and a filtering capability of the first filter is diagnosed based on the detect trapping state of the first filter.
摘要翻译： 一种用于内燃机的废气净化装置，包括第一过滤器和第二过滤器。 第一个过滤器捕集器从所述发动机排出废气。 提供第二过滤器用于故障检测并设置在第一过滤器的下游。 检测第二过滤器的捕获状态，并且基于第一过滤器的检测捕获状态来诊断第一过滤器的过滤能力。
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5.发明授权公开(公告)号：US06908225B2
公开(公告)日：2005-06-21
申请号：US10771498
申请日：2004-02-05
CPC分类号： F02D41/222 , F01P11/16 , F01P2025/08 , F01P2025/13 , F01P2031/00 , F02D41/062 , F02D2200/0414 , G01K15/007 , Y02T10/40
摘要： The invention provides a failure diagnosing apparatus having a first sensor for detecting a temperature of cooling water of an engine mounted on a vehicle and a second sensor for detecting a temperature associated with the engine. The apparatus calculates a first difference between a temperature detected by the first sensor at the time when the engine stops in a previous operating cycle and a temperature detected by the first sensor at the time when the engine starts in a current operating cycle is calculated. The apparatus also calculates a second difference between a temperature detected by the second sensor at the time when the engine stops in the previous operating cycle and a temperature detected by the second sensor at the time when the engine starts in the current operating cycle. It is determined whether the first sensor is faulty based on the first difference and the second difference.
摘要翻译： 本发明提供了一种故障诊断装置，具有用于检测安装在车辆上的发动机的冷却水的温度的第一传感器和用于检测与发动机相关联的温度的第二传感器。 该装置计算出在当前运行循环中发动机起动时发动机在先前操作循环中停止时由第一传感器检测到的温度与由第一传感器检测到的温度之间的第一差值。 该装置还计算在前一操作循环中发动机停止时由第二传感器检测到的温度与在当前操作循环中发动机起动时第二传感器检测到的温度之间的第二差值。 基于第一差异和第二差异来确定第一传感器是否有故障。
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公开(公告)号：US5235952A
公开(公告)日：1993-08-17
申请号：US981681
申请日：1992-11-25
申请人： Yoshitaka Takasuka , Yasuyuki Kimura , Akira Kato
发明人： Yoshitaka Takasuka , Yasuyuki Kimura , Akira Kato
CPC分类号： F02P5/1527 , F02B2275/18 , Y02T10/46
摘要： An ignition timing control system for an internal combustion engine includes an ECU which calculates a knocking correction value in response to an output from a knocking sensor, and an advance limit value in response to engine operating conditions. The ECU operates to limit correction of the ignition timing of the engine in an advancing direction, beyond the advance limit value when the knocking correction value exceeds the advance limit value. The ECU cancels the advance correction limitation when at least one of conditions of high coolant temperature, high intake air temperature, low coolant temperature, and low rotational speed is satisfied.
摘要翻译： 用于内燃机的点火正时控制系统包括响应于来自爆震传感器的输出而计算爆震校正值的ECU以及响应于发动机操作条件的前进极限值。 当敲击校正值超过前进极限值时，ECU操作以限制发动机在前进方向上的点火正时的校正，超过预定极限值。 当冷却剂温度高，进气温度高，冷却液温度低，转速低时的条件中的至少一个满足时，ECU取消提前校正限制。
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公开(公告)号：US07721528B2
公开(公告)日：2010-05-25
申请号：US11368527
申请日：2006-03-07
申请人： Akira Odajima , Yuzuru Koike , Yoshitaka Takasuka , Atsushi Izumiura , Hiroshi Nagashima , Kiyoshi Saito
发明人： Akira Odajima , Yuzuru Koike , Yoshitaka Takasuka , Atsushi Izumiura , Hiroshi Nagashima , Kiyoshi Saito
IPC分类号： F01N3/00
CPC分类号： F01N11/002 , F01N13/009 , F01N13/0093 , F01N2550/04 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine including a first filter and a second filter. The first filter traps particulates in exhaust gases from said engine. The second filter is provided for failure detection and disposed downstream of the first filter. The trapping state of the second filter is detected and a filtering capability of the first filter is diagnosed based on the detect trapping state of the first filter.
摘要翻译： 一种用于内燃机的废气净化装置，包括第一过滤器和第二过滤器。 第一个过滤器捕集器从所述发动机排出废气。 提供第二过滤器用于故障检测并设置在第一过滤器的下游。 检测第二过滤器的捕获状态，并且基于第一过滤器的检测捕获状态来诊断第一过滤器的过滤能力。
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公开(公告)号：US5335744A
公开(公告)日：1994-08-09
申请号：US995460
申请日：1992-12-22
申请人： Yoshitaka Takasuka , Yasuyuki Kimura , Akira Kato
发明人： Yoshitaka Takasuka , Yasuyuki Kimura , Akira Kato
IPC分类号： F02D29/02 , B60K28/16 , F02D37/02 , F02D41/04 , F02D43/00 , F02D45/00 , F02P5/15 , F02P5/152 , F02P5/153
CPC分类号： F02D37/02 , B60K28/16 , F02P5/1521 , Y02T10/46
摘要： A system for controlling combustion knock, if occurring, in an engine by suppressing it by retarding ignition timing. The engine is equipped with traction control for preventing the driven wheel of the vehicle on which the engine is mounted from slipping. In the system, if the traction control is in process, by leaning out a mixture to be supplied to the engine at a high engine speed region, the knock control is discontinued so as to prevent the exhaust gas temperature from rising excessively and so as not to degrade a catalyst installed in the exhaust system and exhaust emission. The knock control is suspended for a period even after the supply of the lean mixture has ceased.
摘要翻译： 一种用于通过延迟点火正时来抑制发动机燃烧爆震（如果发生）的系统。 发动机配备有用于防止发动机安装在其上的车辆的从动轮滑动的牵引力控制。 在该系统中，如果牵引力控制正在进行中，通过在高发动机转速区域倾斜供给发动机的混合物，停止爆震控制，以防止废气温度过度上升，从而不会 降低安装在排气系统中的催化剂和废气排放。 即使在稀混合物的供应停止之后，爆震控制也暂停一段时间。
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公开(公告)号：US5485380A
公开(公告)日：1996-01-16
申请号：US330616
申请日：1994-10-28
申请人： Yoshitaka Takasuka , Yasuyuki Kimura , Akira Kato
发明人： Yoshitaka Takasuka , Yasuyuki Kimura , Akira Kato
IPC分类号： F02D29/02 , B60K28/16 , F02D41/14 , F02D41/22 , F02D45/00 , G01L23/22 , B60T8/32 , F02P5/14 , G06F17/00
CPC分类号： B60K28/16 , F02D41/1497 , F02D41/22 , G01L23/225 , F02B2275/18
摘要： A system for detecting a combustion knock occurred in a combustion chamber of an internal combustion engine. The system includes a sensor for detecting vibration generated in the engine. Sensor output within a range of crankshaft angles during which no combustion occurs is averaged and amplified to determine a reference noise level. Sensor output within another range of crankshaft angles during which combustion occurs is compared with the reference noise level and if the sensor output exceeds the reference noise level, a combustion knock is determined to be present. In the system, a traction control system (TCS) is incorporated in which the engine output torque is reduced when the driven wheel of the vehicle on which the engine is mounted is great. The reference noise level is enlarged when the TCS operates such that the mechanical vibration increased by the sudden change in the torque due to the TCS operation is prevented from being erroneously detected as the combustion knock.
摘要翻译： 在内燃机的燃烧室中发生用于检测燃烧爆震的系统。 该系统包括用于检测发动机中产生的振动的传感器。 在不发生燃烧的曲轴角度范围内的传感器输出被平均化并放大以确定参考噪声电平。 将发生燃烧的另一个曲轴角度范围内的传感器输出与参考噪声电平进行比较，如果传感器输出超过参考噪声电平，则确定存在燃烧爆震。 在该系统中，结合了牵引力控制系统（TCS），当安装发动机的车辆的从动轮很大时，发动机输出转矩减小。 当TCS操作时，参考噪声电平被放大，从而防止由于TCS操作引起的扭矩的突然变化而增加的机械振动被错误地检测为燃烧爆震。
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公开(公告)号：US5235953A
公开(公告)日：1993-08-17
申请号：US981695
申请日：1992-11-25
申请人： Akira Kato , Yasuyuki Kimura , Yoshitaka Takasuka
发明人： Akira Kato , Yasuyuki Kimura , Yoshitaka Takasuka
CPC分类号： G01L23/225 , F02P5/152 , F02P5/1523 , F02B2275/18 , Y02T10/46
摘要： An ignition timing control system for an internal combustion engine includes an ECU which calculates a knocking correction value in response to an output from a knocking sensor, and an advance limit value in response to engine operating conditions. The ECU operates to limit correction of the ignition timing of the engine in an advancing direction, beyond the advance limit value when the knocking correction value exceeds the advance limit value. The ECU carries out the advance correction limitation when the engine load exceeds a first predetermined value. Further, the ECU sets a predetermined reference value more advanced than the advance limit value, in response to engine operating conditions. and when the engine load exceeds a second predetermined value, it modifies the knocking correction value in the ignition timing-advancing direction toward the predetermined reference value and cancels the advance correction limitation when the knocking correction value has been modified to the predetermined reference value while knocking is not detected.
摘要翻译： 用于内燃机的点火正时控制系统包括响应于来自爆震传感器的输出而计算爆震校正值的ECU以及响应于发动机操作条件的前进极限值。 当敲击校正值超过前进极限值时，ECU操作以限制发动机在前进方向上的点火正时的校正，超过预定极限值。 当发动机负载超过第一预定值时，ECU执行提前校正限制。 此外，ECU响应于发动机工作条件设定比前进极限值更高的预定参考值。 并且当发动机负荷超过第二预定值时，将点火正时提前方向的敲击校正值改变为预定的基准值，并且当敲击校正值已被修改为预定的参考值而敲击时取消提前校正限制 没有检测到。
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