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1. 发明授权

US5119628A Catalyst degradation diagnosing apparatus for air fuel ratio control system 失效
标题翻译：用于空气燃料比率控制系统的催化降解诊断装置
公开(公告)号：US5119628A
公开(公告)日：1992-06-09
申请号：US719703
申请日：1991-06-27
申请人： Hideki Uema , Kohei Mitsuhashi , Masaaki Uchida , Yuki Nakajima
发明人： Hideki Uema , Kohei Mitsuhashi , Masaaki Uchida , Yuki Nakajima
IPC分类号： F02D41/14 , F01N11/00 , F02D41/22 , F02D45/00
CPC分类号： F01N11/007 , F01N2550/02 , F01N2900/0421 , Y02T10/47
摘要： To reliably diagnose catalyst degradation in an air fuel ratio control system without being subjected to the influence of engine operating conditions, a front O.sub.2 sensor output VFO and a rear O.sub.2 sensor output VRO are detected on both the upstream and downstream sides of catalytic converter; air fuel ratio feedback correction coefficients .alpha. are determined on the basis of basic feedback control constants P.sub.R,L or i.sub.R,L and correction values PHOS according to rich and lean air fuel ratio conditions; periods T and amplitudes .alpha..sub.R -.alpha..sub.L of the air fuel ratio feedback correction coefficient .alpha. are measured; a rich discriminating catalyst diagnosing slice level RSLH2 is set higher than a rich discriminating air fuel ratio feedback controlling slice level RSH1 and a lean discriminating catalyst diagnosing slice level RSLL2 is set lower than a lean discriminating air fuel ratio feedback controlling slice level RSLL1 in such a way that RSLH2 increases and RSLL2 decreases with increasing product of the period and amplitude of .alpha.; the number j.sub.F of times when the front sensor output VFO changes across a stoichiometric mixture ratio SL.sub.F is connected; the number j.sub.R of times when the rear sensor output VRO changes across the slice levels RSLH2 and RSLL2 is counted; and the catalyst is determined to be degraded if j.sub.R /j.sub.F .gtoreq.k, where k
摘要翻译：为了可靠地诊断空燃比控制系统中的催化剂劣化而不受发动机运行条件的影响，在催化转化器的上游侧和下游侧检测前O2传感器输出VFO和后O2传感器输出VRO; 基于富空燃比条件，基于基本反馈控制常数PR，L或iR，L和校正值PHOS来确定空燃比反馈校正系数α; 测量空燃比反馈校正系数α的周期T和幅度αR-αL; 诊断限幅电平RSLH2的丰富鉴别催化剂被设定为高于富识别空燃比反馈控制限幅电平RSH1，并且贫鉴别催化剂诊断限幅电平RSLL2设定为低于贫气识别用空燃比反馈控制限幅电平RSLL1 RSLH2增加的方式和RSLL2随着α的周期和幅度的乘积的增加而减小; 连接前传感器输出VFO在化学计量混合比SLF上变化的次数jF; 对后传感器输出VRO在切片电平RSLH2和RSLL2之间变化的次数jR进行计数; 如果jR / jF> / = k，则确定催化剂降解，其中k <1。

2. 发明授权

US5640847A Catalyst deterioration diagnosis system for internal combustion engine 失效
标题翻译：内燃机催化剂劣化诊断系统
公开(公告)号：US5640847A
公开(公告)日：1997-06-24
申请号：US544463
申请日：1995-10-18
申请人： Yuki Nakajima , Hideki Uema
发明人： Yuki Nakajima , Hideki Uema
IPC分类号： F01N3/20 , F01N11/00 , F02D41/14 , G05B23/02 , F01N3/00
CPC分类号： F01N11/007 , F02D41/0235 , F02D41/1441 , F02D41/1454 , F01N2550/02 , F01N2900/0422 , Y02T10/47
摘要： A catalyst deterioration diagnosis system for an internal combustion engine having an exhaust gas passageway in which a catalytic converter having a catalyst is disposed. The diagnosis system comprises a first air-fuel ratio sensor disposed in the exhaust gas passageway upstream of the catalytic converter, and a second air-fuel ratio sensor disposed in the exhaust gas passageway downstream of the catalytic converter. The diagnosis system further comprises a control unit connected to the air-fuel ratio sensors and arranged to make an air-fuel ratio feedback control mainly in response to an output signal of the first air-fuel ratio sensor. The control unit includes means for calculating an inversion ratio value relating to an inversion ratio of output signals from the first and second air-fuel ratio sensors when the engine operating condition is within a diagnosis region requiring a diagnosis of deterioration of the catalyst, means for detecting an inversion state value relating to a state of inversion of the output signal of the first air-fuel ratio sensor, means for setting a decision standard value in accordance with the inversion state value from the inversion state value detecting means, and means for judging the deterioration of the catalyst by comparing the inversion ratio value from the inversion ratio value calculating means with the decision standard value from the decision standard value setting means.
摘要翻译：一种具有排气通道的内燃机的催化剂劣化诊断系统，其中设置有具有催化剂的催化转化器。诊断系统包括设置在催化转化器上游的废气通道中的第一空燃比传感器和设置在催化转化器下游的废气通道中的第二空燃比传感器。诊断系统还包括与空燃比传感器连接的控制单元，其主要是响应于第一空燃比传感器的输出信号而进行空燃比反馈控制。控制单元包括：当发动机工作状态处于需要诊断催化剂劣化的诊断区域内时，计算与来自第一和第二空燃比传感器的输出信号的反转比相关的反转比值的装置，检测与第一空燃比传感器的输出信号的反转状态有关的反转状态值，根据来自反转状态值检测单元的反转状态值设定判定基准值的单元，以及判断单元通过将来自反转比值计算装置的反相比值与来自判定标准值设定装置的判定标准值进行比较，催化剂的劣化。

3. 发明授权

US5050083A System and method for controlling air/fuel mixture ratio for internal combustion engine 失效
标题翻译：用于控制内燃机空气/燃料混合比的系统和方法
公开(公告)号：US5050083A
公开(公告)日：1991-09-17
申请号：US414002
申请日：1989-09-29
申请人： Masaaki Uchida , Hideki Uema , Fumio Yukawa , Kunifumi Sawamoto , Toyaki Nakagawa , Naoki Nakada
发明人： Masaaki Uchida , Hideki Uema , Fumio Yukawa , Kunifumi Sawamoto , Toyaki Nakagawa , Naoki Nakada
IPC分类号： F02D41/14
CPC分类号： F02D41/1406 , F02D41/1473 , F02D2041/1426 , F02D2041/1433 , F02D41/1404 , Y10S706/90
摘要： A system and method for controlling an air/fuel mixture for an internal combustion engine are disclosed in which an integration constant used for a calculation of an integration portion included in a feedback correction coefficient (.alpha.) of the air/fuel mixture ratio after a relationship between an actual air/fuel mixture raito and target (stoichiometric) air/fuel mixture ratio has been inverted is set and varied according to an engine driving condition, so that the integration constant meets requirements of a stability during an engine steady driving condition and a favorable responsive characteristic during an engine transient condition. In a preferred embodiement, a fuzzy control is applicable to the calculation of the integration constant.
摘要翻译：公开了一种用于控制用于内燃机的空气/燃料混合物的系统和方法，其中用于计算包括在关系之后的空气/燃料混合比的反馈校正系数（α）中的积分部分的积分常数实际的空气/燃料混合物和目标（化学计量）空气/燃料混合比已经被反转，根据发动机的运行条件而变化，使得积分常数满足在发动机稳定行驶状态下的稳定性要求，在发动机瞬态状态下具有良好的响应特性。在优选的实施例中，模糊控制适用于积分常数的计算。

4. 发明授权

US4924836A Air/fuel ratio control system for internal combustion engine with correction coefficient learning feature 失效
标题翻译：具有校正系数学习特性的内燃机空燃比控制系统
公开(公告)号：US4924836A
公开(公告)日：1990-05-15
申请号：US194936
申请日：1988-05-17
申请人： Masaaki Uchida , Hideki Uema , Hiromichi Miwa , Yoshihisa Kawamura
发明人： Masaaki Uchida , Hideki Uema , Hiromichi Miwa , Yoshihisa Kawamura
IPC分类号： F02D41/00 , F02D41/14 , F02D45/00
CPC分类号： F02D41/2441 , F02D41/2454 , F02D41/2448
摘要： An air/fuel ratio control system detects transition of air/fuel ratio changing between rich and lean for checking if updating condition is satisfied. Updating value is derived based on a feedback correction value which is derived for adjusting air/fuel ratio toward a stoichiometric value. With the updating value thus derived, one of a plurality of learnt correction value which are set with respect to various engine driving range.

5. 发明申请

US20130136453A1 VISIBLE LIGHT COMMUNICATION METHOD AND VISIBLE LIGHT COMMUNICATION SYSTEM 审中-公开
标题翻译：可见光通信方法和可见光通信系统
公开(公告)号：US20130136453A1
公开(公告)日：2013-05-30
申请号：US13814439
申请日：2012-06-18
申请人： Hideki Uema , Yuu Fukuhara , Hiroyoshi Ooshiro , Satoko Gibo
发明人： Hideki Uema , Yuu Fukuhara , Hiroyoshi Ooshiro , Satoko Gibo
IPC分类号： H04B10/80
CPC分类号： H04B10/80 , H04B10/116 , H04B13/02
摘要： A simple visible light communication method and system that, underwater in an ordinary water-quality in which a diver is allowed to go under the water, are able to reliably communicate with a ship, or the like, above water while the diver is stopping at a safety stop position at a depth of 5 m in order to prevent occurrence of dysbarism. The visible light communication method and system us the visible light communication system that includes a transmitter and a receiver and that is usable underwater, and include at a transmitting side, modulating information to be transmitted to pseudo-white light that is adjusted to have a color temperature of 4000 to 10000K and a luminous flux of 550 to 1500 lumens and that is emitted from an LED, and transmitting the pseudo-white light; and, at a receiving side, extracting the information by demodulating the received pseudo-white light.
摘要翻译：一种简单的可见光通信方法和系统，其中在水中允许潜水者在水下进行水下的能够在潜水员停止的情况下可靠地与水面等上的船舶等进行通信在5米深度的安全停止位置，以防止发生偏执。可见光通信方法和系统我们包括发射机和接收机的可见光通信系统，并且可在水下使用，并且在发送侧包括调制要被发送到伪白光的信息，该伪白光被调整为具有颜色温度为4000〜10000K，光通量为550〜1500流明，从LED发射，发出伪白光; 并且在接收侧，通过解调所接收的伪白光来提取信息。

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