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1. 发明授权

US5657627A Air-fuel ratio control system for internal combustion engines 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5657627A
公开(公告)日：1997-08-19
申请号：US517857
申请日：1995-08-22
申请人： Shusuke Akazaki , Kotaro Miyashita , Ken Ogawa , Yoshihisa Hara
发明人： Shusuke Akazaki , Kotaro Miyashita , Ken Ogawa , Yoshihisa Hara
IPC分类号： F02D41/14
CPC分类号： F02D41/1441 , F02B2275/18 , F02D41/1456
摘要： An air-fuel ratio control system for an internal combustion engine having at least one catalytic converter arranged in the exhaust passage, comprises an ECU which changes air intake characteristics of the engine, based on operating conditions of the engine, and a plurality of exhaust gas component concentration sensors including at least upstream and downstream exhaust gas component concentration sensors arranged in the exhaust passage at respective locations upstream and downstream of the at least one catalytic converter. The air-fuel ratio of an air-fuel mixture to be supplied to the engine is controlled to a desired air-fuel ratio in a feedback manner responsive to an output from the upstream exhaust gas component concentration sensor. A feedback control parameter for use in the air-fuel ratio feedback control is calculated based on an output from the downstream exhaust gas component concentration sensor. The updating rate of the feedback control parameter is changed when the feedback control parameter is calculated, according to the air intake characteristics of the engine.
摘要翻译：一种用于内燃机的空燃比控制系统，其具有布置在排气通道中的至少一个催化转化器，包括基于发动机的运行条件改变发动机的进气特性的ECU，以及多个废气组分浓度传感器至少包括在所述至少一个催化转化器的上游和下游的相应位置处布置在所述排气通道中的上游和下游排气组分浓度传感器。供应到发动机的空气燃料混合物的空燃比以响应于上游排气组分浓度传感器的输出的反馈方式被控制到期望的空燃比。基于来自下游侧废气成分浓度传感器的输出，计算用于空燃比反馈控制的反馈控制参数。根据发动机的进气特性，计算反馈控制参数时，反馈控制参数的更新率发生变化。

2. 发明授权

US5383126A Control system for internal combustion engines with exhaust gas recirculation systems 失效
标题翻译：具有废气再循环系统的内燃机控制系统
公开(公告)号：US5383126A
公开(公告)日：1995-01-17
申请号：US951232
申请日：1992-09-25
申请人： Ken Ogawa , Yoshihisa Hara , Kotaro Miyashita , Kei Machida
发明人： Ken Ogawa , Yoshihisa Hara , Kotaro Miyashita , Kei Machida
IPC分类号： F02D21/08 , F02D41/00 , F02D41/04 , F02D41/08
CPC分类号： F02D41/0072 , F02D41/047 , F02P5/1516 , Y02T10/46 , Y02T10/47
摘要： A control system for an internal combustion engine estimates an amount of adherent fuel adhering to the inner surface of the intake passage, as well as an amount of carried-off fuel evaporated form fuel adhering to the inner surface of the intake passage and carried into combustion chambers, determines an amount of supply fuel to be supplied to the engine, based upon operating conditions of the engine, the estimated adherent fuel amount, and the estimated carried-off fuel amount, and supplies the determined supply fuel amount into the intake passage. The control system calculates an amount of exhaust gases to be recirculated from the exhaust passage to the intake passage, and corrects the estimated adherent fuel amount and the estimated carried-off fuel amount, based upon the calculated exhaust gas recirculating amount, based upon the calculated exhaust gas recirculating amount. Advantageously, the exhaust gas recirculating amount is calculated based upon dynamic characteristics of an exhaust gas recirculation control valve and those of exhaust gases being recirculated.
摘要翻译：用于内燃机的控制系统估计粘附在进气通道的内表面上的附着燃料的量以及附着在进气通道的内表面上并被运载到燃烧中的燃料蒸发的燃料蒸发量根据发动机的运行条件，估计的粘附燃料量和估计的排出燃料量，确定供给到发动机的供给燃料的量，并将确定的供给燃料量供给到进气通道中。控制系统计算要从排气通道再循环到进气通道的废气量，并基于计算出的废气再循环量来校正估计的粘附燃料量和估计的排出燃料量，废气循环量。有利地，基于废气再循环控制阀的动态特性和被再循环的废气的动态特性来计算废气再循环量。

3. 发明授权

US5215061A Control system for internal combustion engines 失效
标题翻译：内燃机控制系统
公开(公告)号：US5215061A
公开(公告)日：1993-06-01
申请号：US945489
申请日：1992-09-16
申请人： Ken Ogawa , Kotaro Miyashita , Yoshihisa Hara
发明人： Ken Ogawa , Kotaro Miyashita , Yoshihisa Hara
IPC分类号： F01L9/02 , F02D13/02 , F02D41/04 , F02D43/00 , F02M25/08
CPC分类号： F01L9/025 , F01L9/021 , F02D13/0207 , F02D13/023 , F02D41/047 , F02D43/00 , F02M25/08 , F01L2001/34446 , F01L2820/02 , F02B2275/18 , F02D2041/001 , Y02T10/18
摘要： A control system for an internal combustion engine estimates an amount of adherent fuel adhering to the inner surface of the intake passage, as well as an amount of carried-off fuel evaporated from fuel adhering to the inner surface of the intake passage and carried into combustion chambers, determines an amount of supply fuel to be supplied to the engine, based upon operating conditions of the engine, the estimated adherent fuel amount, and the estimated carried-off fuel amount, and supplies the determined supply fuel amount into the intake passage. The control systems corrects the estimated adherent fuel amount and the estimated carried-off fuel amount, in response to an intake parameter which is changeable within the intake passage. The intake parameter includes an amount of evaporative fuel purged, valve operating characteristics of intake valves and/or exhaust valves, an amount of assist air supplied to fuel injection valves.

4. 发明授权

US5253630A Air-fuel ratio control system for internal combusion engines 失效
标题翻译：内燃机发动机空燃比控制系统
公开(公告)号：US5253630A
公开(公告)日：1993-10-19
申请号：US945519
申请日：1992-09-16
申请人： Shusuke Akazaki , Kotaro Miyashita
发明人： Shusuke Akazaki , Kotaro Miyashita
IPC分类号： F02B29/08 , F02D41/04 , F02D41/06 , F02D41/14 , F02D41/16
CPC分类号： F02D41/1475 , F02D41/1486 , F02B2275/18 , F02D41/1456
摘要： An air-fuel ratio control system for an internal combustion engine controls the air-fuel ratio of a mixture supplied to the engine to a desired air-fuel ratio in response to an output from an exhaust gas ingredient concentration sensor. A first value of the desired air-fuel ratio is calculated based on the rotational speed of the engine and the load on the engine. A second value of the desired air-fuel ratio is calculated based results of determination on whether a vehicle on which the engine is installed has just started from a standing position thereof. A third value of the desired air-fuel ratio is calculated based on results of determination on whether the temperature of the engine is lower than a predetermined value. The largest value of at least the first to third values of the desired air-fuel ratio is set to a final value of the desired air-fuel ratio.

5. 发明授权

US5845620A Ignition timing control system for internal combustion engine 失效
标题翻译：内燃机点火正时控制系统
公开(公告)号：US5845620A
公开(公告)日：1998-12-08
申请号：US366730
申请日：1994-12-30
申请人： Kotaro Miyashita , Shuichi Takagi , Yoshio Yamamoto , Yoshihisa Hara , Hiroshi Ikeba
发明人： Kotaro Miyashita , Shuichi Takagi , Yoshio Yamamoto , Yoshihisa Hara , Hiroshi Ikeba
IPC分类号： F02P5/15 , F02D45/00 , F02P5/152 , F02P5/153
CPC分类号： F02P5/1527 , Y02T10/46
摘要： An ignition timing control system for an internal combustion engine that estimates the octane number of the fuel being used based on the state of engine combustion knocking and controls the ignition timing to a value not exceeding the knocking limit. The basic ignition timing is set along the knocking limit of fuel having least octane number and the maximum advance amount is set between the knocking limit and the second knocking limit of fuel having maximum octane number. Octane number is estimated from the occurrence of knocking. On the other hand, upper limit of the estimated octane number is set based on the MBT of the engine such that the estimated octane number is limited with the upper limit. Advance rate is determined based on the estimated octane number and is multiplied to the maximum advance amount to determine an ignition timing correction amount. The ignition timing is finally determined from the basic ignition timing and the ignition timing correction amount. A learning control is conducted for the octane number estimated and the estimated octane number is limited within the learned value.
摘要翻译：一种用于内燃机的点火正时控制系统，其基于发动机燃烧爆震的状态估计正在使用的燃料的辛烷值，并将点火正时控制到不超过爆震极限的值。基本点火正时沿着具有最小辛烷值的燃料的爆震极限设定，并且在爆震极限和具有最大辛烷值的燃料的第二爆震极限之间设定最大提前量。辛烷值估计是从敲击的发生。另一方面，基于发动机的MBT设定估计辛烷值的上限，使得估计的辛烷值受限于上限。基于估计的辛烷值确定提前率，并将其乘以最大提前量，以确定点火正时校正量。点火正时最终由基本点火正时和点火正时校正量确定。对于估计的辛烷值进行学习控制，并且在学习值内限制估计的辛烷值。

6. 发明授权

US5482020A Control system for internal combustion engines 失效
标题翻译：内燃机控制系统
公开(公告)号：US5482020A
公开(公告)日：1996-01-09
申请号：US322086
申请日：1994-10-12
申请人： Daisuke Shimizu , Kotaro Miyashita , Yoshihisa Hara , Yamamoto Yoshio
发明人： Daisuke Shimizu , Kotaro Miyashita , Yoshihisa Hara , Yamamoto Yoshio
IPC分类号： F02P5/15 , F02D13/02 , F02D41/00 , F02D41/02 , F02M25/07 , F02D41/04
CPC分类号： F02D41/0072 , F02P5/1516 , F02B2275/18 , Y02T10/46 , Y02T10/47
摘要： A control system for an internal combustion engine includes an exhaust gas recirculation passage extending between the intake system and the exhaust system, for recirculating part of exhaust gases emitted from the engine, an EGR valve for controlling a flow rate of exhaust gases to be recirculated through the exhaust gas recirculation passage, and an ECU which detects an operating condition of the EGR valve, and calculates an amount of fuel to be injected, based on operating conditions of the engine. Further, the ECU calculates dynamic characteristics of the exhaust gases to be recirculated, based on operating conditions of the engine, a virtual operation amount of the EGR valve, based on the dynamic characteristics, a recirculation rate of exhaust gases, based on the virtual operation amount as well as operating conditions of the engine, and a recirculation rate of inert gases present in exhaust gases to be recirculated, based on the exhaust gas recirculation rate as well as the concentration of oxygen present in the exhaust gases, and corrects the amount of the fuel to be injected, based on the inert gas recirculation rate.
摘要翻译：用于内燃机的控制系统包括在进气系统和排气系统之间延伸的废气再循环通道，用于使从发动机排出的废气的一部分再循环; EGR阀，用于控制废气的再循环流量废气再循环通道和ECU，其检测EGR阀的运行状态，并根据发动机的运转条件计算出喷射的燃料量。此外，基于动态特性，基于虚拟动作的排气的再循环率，ECU基于发动机的运转条件，EGR阀的虚拟运转量，计算要再循环的废气的动态特性基于废气再循环速率以及存在于废气中的氧浓度，存在于要再循环的废气中的惰性气体的再循环速率以及存在于排气中的氧气的浓度，基于惰性气体再循环速率喷射的燃料。

7. 发明授权

US5551408A Exhaust gas recirculation control system for internal combustion engines 失效
标题翻译：内燃机排气再循环控制系统
公开(公告)号：US5551408A
公开(公告)日：1996-09-03
申请号：US322193
申请日：1994-10-12
申请人： Daisuke Shimizu , Kotaro Miyashita , Yoshihisa Hara , Hiroshi Ikeba
发明人： Daisuke Shimizu , Kotaro Miyashita , Yoshihisa Hara , Hiroshi Ikeba
IPC分类号： F02M25/07 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14
CPC分类号： F02D41/005 , F02B2275/18 , F02D41/0077 , Y02T10/47
摘要： An exhaust gas recirculation control system for an internal combustion engine includes an exhaust gas recirculation passage extending between the intake system of the engine and the exhaust system thereof, and an exhaust gas recirculation control valve for controlling the flow rate of exhaust gases to be recirculated through the exhaust gas recirculation passage. The system further includes an ECU which calculates a desired air-fuel ratio of a mixture supplied to the engine, based on engine operating conditions detected by engine operating parameter sensors, and also a desired valve opening of the exhaust gas recirculation control valve, based on engine operating conditions detected by the operating parameter sensors and the calculated desired air-fuel ratio. The ECU modifies the calculated desired valve opening by a first predetermined amount, and starts the controlling of the flow rate of exhaust gases to be recirculated by the exhaust gas recirculation control valve, by the use of the modified desired valve opening, when it is determined that the desired air-fuel ratio has been changed from a lean state to a rich state or vice versa.
摘要翻译：用于内燃机的排气再循环控制系统包括在发动机的进气系统和排气系统之间延伸的废气再循环通道和用于控制废气再循环通过的排气流量的废气再循环控制阀排气再循环通道。该系统还包括ECU，其基于由发动机操作参数传感器检测到的发动机工作条件以及基于排气再循环控制阀的期望阀开度计算供给到发动机的混合物的期望空燃比，基于由操作参数传感器检测的发动机操作条件和所计算的所需空燃比。 ECU将所计算的所需阀开度改变第一预定量，并且当确定时，通过使用改进的所需阀开度来控制由废气再循环控制阀再循环的废气的流量期望的空燃比已经从稀薄状态变为浓状态，反之亦然。

8. 发明授权

US08823204B2 Vehicle electric load system 有权
标题翻译：车载电力系统
公开(公告)号：US08823204B2
公开(公告)日：2014-09-02
申请号：US13036771
申请日：2011-02-28
申请人： Paul DeHart , Takahide Mizuno , Hirokazu Toyoshima , Masanori Ohara , Joji Hijikata , Kazuhiko Imamura , Kotaro Miyashita
发明人： Paul DeHart , Takahide Mizuno , Hirokazu Toyoshima , Masanori Ohara , Joji Hijikata , Kazuhiko Imamura , Kotaro Miyashita
IPC分类号： B60R16/02 , B60L1/00 , B60R16/03 , H02J1/14
CPC分类号： B60L1/003 , B60R16/02 , B60R16/03 , H02J1/14 , Y02T90/16
摘要： An electric load system and method for a vehicle includes an electric load, electric devices, an electrically driven element operating in an operating state, an electric load detector to measure an electric load generated by the electric devices, and an electric control unit communicating with the electric load detector and the electrically driven element to determine an electric load of the electric load system. The method includes estimating an electric load of the electrically driven element based on an operating state of the electrically driven element via the electric control unit and adding the electric load from the electrically driven element to an electric load measured by the electric load detector.
摘要翻译：一种用于车辆的电力负载系统和方法，包括电力负载，电气装置，在运行状态下工作的电动元件，用于测量由电气装置产生的电力负载的电力负载检测器，以及与该电气装置通信的电气控制单元电负载检测器和电驱动元件，以确定电负载系统的电负载。该方法包括基于电动元件的电动控制单元的运行状态来估计电动元件的电负载，并且将来自电驱动元件的电负载加到由电负载检测器测量的电负载。

9. 发明授权

US5954028A Air-fuel ratio control system for internal combustion engines 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5954028A
公开(公告)日：1999-09-21
申请号：US908676
申请日：1997-08-07
申请人： Kotaro Miyashita , Hirofumi Mutoh , Yuichiro Tanabe
发明人： Kotaro Miyashita , Hirofumi Mutoh , Yuichiro Tanabe
IPC分类号： F02D41/14 , F02M7/00
CPC分类号： F02D41/1498 , F02D41/1475 , F02D41/2454 , F02D2200/1015 , F02D41/1456
摘要： An air-fuel ratio control system for an internal combustion engine includes an air-fuel ratio sensor arranged in an exhaust system thereof for generating an output substantially proportional in value to an air-fuel ratio of exhaust gases emitted from the engine. An amount of variation in combustion of the engine is detected. A desired air-fuel ratio of a mixture supplied to the engine is set to a value leaner than a stoichiometric air-fuel ratio based on the amount of variation in combustion of the engine, when the engine is in a predetermined operating condition. Feedback control of an air-fuel ratio of the mixture to the desired air-fuel ratio is carried out in response to the output from the air-fuel ratio sensor. The desired air-fuel ratio is set to a richer value than an immediately preceding value thereof when the amount of variation in combustion of the engine detected is large and to a leaner value than the immediately preceding value thereof when the amount of variation in combustion of the engine is small. A value of the desired air-fuel ratio set is learned as an actual lean limit of the air-fuel ratio for stable combustion of the engine. A rate of change of the desired air-fuel ratio is adjusted based on the learned value of the desired air-fuel ratio.
摘要翻译：用于内燃机的空燃比控制系统包括布置在其排气系统中的空燃比传感器，用于产生与从发动机排放的废气的空燃比基本成正比的输出。检测发动机的燃烧变化量。当发动机处于预定操作状态时，提供给发动机的混合物的期望空燃比被设定为比基于发动机燃烧变化量的化学计量空燃比更稀薄的值。响应于空燃比传感器的输出，进行混合物的空燃比对所需空燃比的反馈控制。当所检测的发动机的燃烧变化量大时，所需的空燃比被设定为比其前一值更丰富的值，当燃烧变化量为发动机很小将所需空燃比设定的值作为用于发动机稳定燃烧的空燃比的实际稀薄极限来获知。基于所需空燃比的学习值来调整所需空燃比的变化率。

10. 发明授权

US5941224A Air-fuel ratio control system for internal combustion engines 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5941224A
公开(公告)日：1999-08-24
申请号：US902274
申请日：1997-07-29
申请人： Kotaro Miyashita , Hirofumi Mutoh , Yuichiro Tanabe
发明人： Kotaro Miyashita , Hirofumi Mutoh , Yuichiro Tanabe
IPC分类号： F02M25/08 , F02D41/00 , F02D41/02 , F02D41/14 , F02D45/00
CPC分类号： F02D41/1456 , F02D41/0042 , F02D2041/1409 , F02D2041/1422 , F02D2200/0406 , F02D2200/0414 , F02M25/08
摘要： An air-fuel ratio control system for an internal combustion engine includes an air-fuel ratio sensor arranged in the exhaust system of the engine, for generating an output indicative of the air-fuel ratio of exhaust gases emitted from the engine. An ECU carries out feedback control of controlling the air-fuel ratio of a mixture supplied to the engine to a predetermined desired air-fuel ratio in response to the output from the air-fuel ratio sensor, by using at least one feedback control gain. A purge control valve purges evaporative fuel generated in the fuel tank to the engine. The at least one feedback control gain is set to a smaller value when the degree of influence of evaporative fuel purged by the purge control valve upon the air-fuel ratio of the mixture is larger, and set to a larger value when the degree of influence of the purged evaporative fuel upon the air-fuel ratio of the mixture is smaller.
摘要翻译：用于内燃机的空燃比控制系统包括布置在发动机的排气系统中的空燃比传感器，用于产生表示从发动机排出的废气的空燃比的输出。 ECU通过使用至少一个反馈控制增益来执行响应于来自空燃比传感器的输出而将供给发动机的混合物的空燃比控制到预定的期望空燃比的反馈控制。净化控制阀清除燃料箱中产生的蒸汽燃料到发动机。当由清洗控制阀吹扫的蒸发燃料对混合气的空燃比的影响程度较大时，将至少一个反馈控制增益设定为较小的值，当影响程度被排出的蒸发燃料的混合物的空燃比较小。

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