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1. 发明授权

US06371096B1 Diagnosis system for wide-range air-fuel ratio sensor 失效
标题翻译：宽范围空燃比传感器诊断系统
公开(公告)号：US06371096B1
公开(公告)日：2002-04-16
申请号：US09251941
申请日：1999-02-18
申请人： Masanobu Ohsaki , Seiichi Ohtani , Katsuyoshi Shiobara
发明人： Masanobu Ohsaki , Seiichi Ohtani , Katsuyoshi Shiobara
IPC分类号： F02D4100
CPC分类号： F02D41/1456 , F02D41/1408 , F02D41/1495 , F02D2041/1409 , F02D2041/1422
摘要： A diagnosis system for a wide-range A/F sensor receives an air-fuel ratio (A/F) of air-fuel mixture supplied to an engine for the A/F sensor. An control unit of the diagnosis system corrects an A/F controlled object of a feedback control on the basis of a detection result of the A/F sensor to adjust the A/F at a target A/F. The control unit diagnoses an abnormality of the A/F sensor from variation of the detection value of the A/F sensor during a time period from the start of the switching of the target A/F. The control unit sets a control gain of an A/F feedback control at a value greater than a normal control gain during the diagnosis.
摘要翻译：用于大范围A / F传感器的诊断系统接收供给A / F传感器的发动机的空气燃料混合物的空燃比（A / F）。诊断系统的控制单元基于A / F传感器的检测结果来校正反馈控制的A / F控制对象，以调整目标A / F处的A / F。控制单元在从目标A / F的开始开始的时间段内，根据A / F传感器的检测值的变化来诊断A / F传感器的异常。控制单元在诊断期间将A / F反馈控制的控制增益设置为大于正常控制增益的值。

2. 发明授权

US6158420A Diagnostic apparatus and method for supplying assist air in an internal combustion engine 失效
标题翻译：用于在内燃机中供应辅助空气的诊断装置和方法
公开(公告)号：US6158420A
公开(公告)日：2000-12-12
申请号：US280067
申请日：1999-03-29
申请人： Masanobu Ohsaki , Michiyuki Fujimoto , Seiichi Ohtani , Katsuyoshi Shiobara
发明人： Masanobu Ohsaki , Michiyuki Fujimoto , Seiichi Ohtani , Katsuyoshi Shiobara
IPC分类号： F02M69/00 , F02D31/00 , F02D41/22 , F02M23/04 , F02M65/00 , F02M69/46 , G01M15/04 , F02M23/00
CPC分类号： F02D31/005 , F02D41/221 , F02M23/04 , F02D2041/3088 , F02D2200/0406 , F02D2200/501 , Y02T10/146
摘要： A diagnostic apparatus for supplying an assist air in an internal combustion engine includes: an assist air passage for guiding intake air from upstream of a throttle valve to a fuel injector installed downstream of said throttle valve; an assist air control valve installed in said assist air passage; a sensor for detecting an engine operating parameter; and a control unit. The control unit includes a data storage portion and a data processing portion. The control unit selectively forces the assist air control valve open and closed upon detection of at least one predetermined diagnosis condition. The control unit then calculates and stores a plurality of values corresponding to changes in the engine operating parameter based on signals received from the sensor, and determines an occurrence of an error with assist air supply based on comparisons of said values with a predetermined value.
摘要翻译：用于在内燃机中供应辅助空气的诊断装置包括：辅助空气通道，用于将进气从节流阀的上游引导到安装在所述节流阀下游的燃料喷射器; 安装在所述辅助空气通道中的辅助空气调节阀; 用于检测发动机工作参数的传感器; 和控制单元。控制单元包括数据存储部分和数据处理部分。在检测到至少一个预定诊断条件时，控制单元选择性地迫使辅助空气控制阀打开和关闭。控制单元然后基于从传感器接收到的信号来计算和存储对应于发动机工作参数的变化的多个值，并且根据所述值与预定值的比较来确定具有辅助空气供应的错误的发生。

3. 发明申请

US20080271435A1 Deterioration Diagnosis System for an Air-Fuel Ratio Sensor 有权
标题翻译：空燃比传感器恶化诊断系统
公开(公告)号：US20080271435A1
公开(公告)日：2008-11-06
申请号：US11869803
申请日：2007-10-10
申请人： Toshihiro AONO , Takahumi Ohwada , Akira Kiyomura , Masanobu Ohsaki , Seiichi Ohtani , Shigeo Ohkuma
发明人： Toshihiro AONO , Takahumi Ohwada , Akira Kiyomura , Masanobu Ohsaki , Seiichi Ohtani , Shigeo Ohkuma
IPC分类号： F01N3/00
CPC分类号： F01N11/007 , F01N2560/025 , F01N2900/0422 , F02D41/123 , F02D41/1456 , F02D41/1495 , Y02T10/47
摘要： A deterioration diagnosis system for an air fuel sensor mounted to an exhaust pipe of an internal combustion engine. The air fuel sensor determines a mixture ratio of air and fuel fed into the internal combustion engine. In the system, an inclination of an output signal of the air-fuel ratio sensor is calculated; variance of the inclination is calculated; deterioration of the air-fuel ratio sensor is determined based on the variance of the inclination.
摘要翻译：一种安装在内燃机的排气管上的空气燃料传感器的劣化诊断系统。空气燃料传感器确定供给到内燃机的空气和燃料的混合比。在该系统中，计算空燃比传感器的输出信号的倾斜度; 计算倾斜的方差; 基于倾斜的变化来确定空燃比传感器的劣化。

4. 发明授权

US5261297A Control system for automotive automatic transmission 失效
标题翻译：汽车自动变速器控制系统
公开(公告)号：US5261297A
公开(公告)日：1993-11-16
申请号：US958773
申请日：1992-10-09
申请人： Masuo Kashiwabara , Hideki Sekiguchi , Seiichi Ohtani , Hiromitsu Yamaura , Tomoyuki Hirose , Takafumi Fukumoto
发明人： Masuo Kashiwabara , Hideki Sekiguchi , Seiichi Ohtani , Hiromitsu Yamaura , Tomoyuki Hirose , Takafumi Fukumoto
IPC分类号： F16H59/14 , F16H59/74 , F16H61/02
CPC分类号： F16H59/14 , F16H59/74 , Y10T477/688
摘要： A control system for automatic transmission is provided in a motor vehicle having an internal combustion engine and an automatic transmission associated with the engine. The engine is operable on a fuel which is a mixture of gasoline and alcohol. The control system comprises an alcohol sensor for sensing the alcohol concentration in the fuel; a first device for deriving an engine load parameter which represents the load applied to the engine; a second device for correcting the engine load parameter with reference to the alcohol concentration sensed by the alcohol sensor; and a third device for controlling a line pressure of the transmission in accordance with the corrected engine load parameter.
摘要翻译：在具有内燃机和与发动机相关联的自动变速器的机动车辆中设置有用于自动变速器的控制系统。发动机可以在汽油和酒精混合的燃料上操作。控制系统包括用于感测燃料中的酒精浓度的酒精传感器; 用于导出表示施加到发动机的负载的发动机负载参数的第一装置; 第二装置，用于根据由酒精传感器感测到的酒精浓度来校正发动机负载参数; 以及用于根据校正的发动机负载参数来控制变速器的管路压力的第三装置。

5. 发明授权

US07836758B2 Deterioration diagnosis system for an air-fuel ratio sensor 有权
标题翻译：空燃比传感器恶化诊断系统
公开(公告)号：US07836758B2
公开(公告)日：2010-11-23
申请号：US11869803
申请日：2007-10-10
申请人： Toshihiro Aono , Takahumi Ohwada , Akira Kiyomura , Masanobu Ohsaki , Seiichi Ohtani , Shigeo Ohkuma
发明人： Toshihiro Aono , Takahumi Ohwada , Akira Kiyomura , Masanobu Ohsaki , Seiichi Ohtani , Shigeo Ohkuma
IPC分类号： G01M15/10
CPC分类号： F01N11/007 , F01N2560/025 , F01N2900/0422 , F02D41/123 , F02D41/1456 , F02D41/1495 , Y02T10/47
摘要： A deterioration diagnosis system for an air fuel sensor mounted to an exhaust pipe of an internal combustion engine. The air fuel sensor determines a mixture ratio of air and fuel fed into the internal combustion engine. In the system, an inclination of an output signal of the air-fuel ratio sensor is calculated; variance of the inclination is calculated; deterioration of the air-fuel ratio sensor is determined based on the variance of the inclination.
摘要翻译：一种安装在内燃机的排气管上的空气燃料传感器的劣化诊断系统。空气燃料传感器确定供给到内燃机的空气和燃料的混合比。在该系统中，计算空燃比传感器的输出信号的倾斜度; 计算倾斜的方差; 基于倾斜的变化来确定空燃比传感器的劣化。

6. 发明授权

US6035839A Method and apparatus for controlling the air-fuel ratio of an internal combustion engine 失效
标题翻译：用于控制内燃机的空燃比的方法和装置
公开(公告)号：US6035839A
公开(公告)日：2000-03-14
申请号：US982071
申请日：1997-12-01
申请人： Seiichi Ohtani , Mitsuru Miyata , Masanobu Osaki
发明人： Seiichi Ohtani , Mitsuru Miyata , Masanobu Osaki
IPC分类号： F02D45/00 , F02D41/04 , F02D41/06 , F02D41/14
CPC分类号： F02D41/1455 , F02D41/068
摘要： An object of the present invention is to be able to correct for deviation of an actual air-fuel ratio from a point for satisfactory purification performance of an exhaust gas purification catalytic converter, during an interval from immediately after start up until an air-fuel ratio sensor and an exhaust gas purification catalytic converter attain a stable condition. To achieve this, a control constant in an air-fuel ratio feedback control is set and altered during an interval from immediately after start up until the air-fuel ratio sensor and the exhaust gas purification catalytic converter attain a stable condition. In this way, the actual air-fuel ratio can be shifted, and hence the deviation of the actual air-fuel ratio from the point for satisfactory purification performance of the exhaust gas purification catalytic converter during the interval from immediately after start up until the air-fuel ratio sensor and the exhaust gas purification catalytic converter attain a stable condition, can be corrected. Consequently, the situation immediately after start up where the actual air-fuel ratio deviates from the target air-fuel ratio, attributable to the air-fuel ratio sensor and the exhaust gas purification catalytic converter being in an unstable condition, can be suppressed. Therefore the purification efficiency of the exhaust gas purification catalytic converter can be kept high.
摘要翻译：本发明的目的是能够在从启动之后的间隔到空燃比的间隔期间校正实际空燃比与排气净化催化转化器的令人满意的净化性能的点的偏差传感器和排气净化催化转化器达到稳定的条件。为此，空燃比反馈控制中的控制常数在启动后直到空燃比传感器和废气净化催化转换器达到稳定状态的间隔内被设定和改变。以这种方式，实际的空燃比可以偏移，因此实际的空燃比与排气净化催化转化器的净化性能令人满意的点之间的距离从启动之后到空气 - 燃料比传感器和排气净化催化转化器达到稳定的条件，可以纠正。因此，可以抑制由于空燃比传感器和排气净化催化剂处于不稳定状态而导致的实际空燃比偏离目标空燃比的起动之后的状态。因此，废气净化催化转化器的净化效率可以保持较高。

7. 发明授权

US5817923A Apparatus for detecting the fuel property for an internal combustion engine and method thereof 失效
标题翻译：用于检测内燃机的燃料特性的装置及其方法
公开(公告)号：US5817923A
公开(公告)日：1998-10-06
申请号：US788663
申请日：1997-01-24
申请人： Masanobu Ohsaki , Seiichi Ohtani , Mitsuru Miyata
发明人： Masanobu Ohsaki , Seiichi Ohtani , Mitsuru Miyata
IPC分类号： F02B77/08 , F02D41/06 , F02D45/00 , F02D19/06
CPC分类号： F02D41/1497 , F02D41/064 , F02D2200/0612 , F02D2200/1012
摘要： A period of from when the starter switch is turned on or from the start of the fuel injection until when the engine rotation speed has reached a predetermined rotation speed, is detected as a parameter representing the starting performance. After the engine rotation speed has reached a predetermined rotation speed, furthermore, the parameter representing a change in the rotation and the parameter representing rising gradient of the rotation-speed are detected. Then, the parameter representing the starting performance, the parameter representing a change in the rotation and the parameter representing a rising gradient of the rotation speed are weighted to detect the fuel property.
摘要翻译：作为表示起动性能的参数，检测从启动开关接通或燃料喷射开始到发动机转速达到规定转速的时间。此外，在发动机转速达到预定旋转速度之后，检测表示转速变化的参数和表示转速上升斜率的参数。然后，加权表示启动性能的参数，表示旋转变化的参数和表示转速上升梯度的参数，以检测燃料特性。

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