公开(公告)号：US5476081A

公开(公告)日：1995-12-19

申请号：US259230

申请日：1994-06-13

申请人： Koji Okawa ,  Mitsuru Takada ,  Nobuyuki Kobayashi ,  Shuji Yuda ,  Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiko Iwano

发明人： Koji Okawa ,  Mitsuru Takada ,  Nobuyuki Kobayashi ,  Shuji Yuda ,  Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiko Iwano

IPC分类号： F02D41/00 ,  F02M25/08 ,  F02M51/00 ,  F02D41/04

CPC分类号： F02D41/0045 ,  F02M25/08 ,  F02D41/0042

摘要： An air-fuel ratio control apparatus includes: a determining part for determining a target purge ratio in accordance with operating conditions of an engine; a purge control part for controlling a flow rate of evaporated fuel, supplied from an evaporated fuel purge system into an intake passage of the engine, by actuating a purge control valve based on the target purge ratio, and for storing an evaporated fuel flow rate of the purge control valve; a fuel injection control part for generating a drive signal in accordance with a fuel injection time, and for controlling an air-fuel ratio of an air-fuel mixture to the intake passage by actuating a fuel injection valve in accordance with the drive signal; an estimating part for estimating the ratio of an evaporated fuel flow rate to an intake air flow rate based on sensed operating conditions of the engine and on the stored evaporated fuel flow rate of the purge control part; and a fuel injection time determining part for determining a fuel injection time based on the estimated ratio, and for supplying the fuel injection time to the fuel injection control part.

摘要翻译： 空燃比控制装置包括：确定部，其根据发动机的运转条件来确定目标吹扫比; 吹扫控制部分，用于通过基于所述目标吹扫比率来驱动吹扫控制阀，用于控制从蒸发燃料吹扫系统供应到发动机的进气通道中的蒸发燃料的流量，并且用于存储蒸发燃料的蒸发燃料流量 清洗控制阀; 燃料喷射控制部分，用于根据燃料喷射时间产生驱动信号，并且根据驱动信号通过致动燃料喷射阀来控制空气 - 燃料混合物与进气通道的空燃比; 估计部分，用于基于感测到的发动机的运行条件以及所述净化控制部分的储存的蒸发燃料流量来估计蒸发的燃料流量与进气流量的比率; 以及燃料喷射时间确定部分，用于基于估计的比率确定燃料喷射时间，并且用于将燃料喷射时间提供给燃料喷射控制部分。

公开(公告)号：US5577486A

公开(公告)日：1996-11-26

申请号：US422978

申请日：1995-04-17

申请人： Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiko Iwano ,  Shuji Yuda ,  Takayuki Demura

发明人： Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiko Iwano ,  Shuji Yuda ,  Takayuki Demura

IPC分类号： F02D45/00 ,  F02D41/14

CPC分类号： F02D41/2477 ,  F02D41/2454 ,  F02D41/2441

摘要： This fuel injection control apparatus consists of a calculating device for calculating an air-fuel ratio correction factor FAF, a learning device for learning an air-fuel ratio learning factor KG in accordance with the deviation of FAF from the reference value, and a controller for controlling the amount of injected fuel in accordance with FAF and KG. When the start enrichment FASE and the warm-up enrichment FWL are added, KG is learned in accordance with the corrected deviation which is the deviation of FAF corrected by the correction factor f(FASE+FWL) which is concerned with FASE and FWL. The learning accuracy is improved because KG is learned at each region of FWL which is divided into plural regions in accordance with the engine driving conditions.

摘要翻译： 该燃料喷射控制装置由用于计算空燃比校正系数FAF的计算装置，用于根据FAF与参考值的偏差来学习空燃比学习系数KG的学习装置，以及控制器 根据FAF和KG控制注入燃料的量。 当添加开始浓缩FASE和预热浓缩FWL时，根据校正偏差来校正KG，该校正偏差是通过与FASE和FWL有关的校正因子f（FASE + FWL）校正的FAF的偏差。 由于在根据发动机驾驶条件被分成多个区域的FWL的各个区域学习KG，因此学习精度得到改善。

公开(公告)号：US5546917A

公开(公告)日：1996-08-20

申请号：US405328

申请日：1995-03-16

申请人： Akinori Osanai ,  Toshinari Nagai ,  Hiroshi Kanai ,  Kenji Harima ,  Kazuhiko Iwano ,  Shuji Yuda

发明人： Akinori Osanai ,  Toshinari Nagai ,  Hiroshi Kanai ,  Kenji Harima ,  Kazuhiko Iwano ,  Shuji Yuda

IPC分类号： F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D43/00 ,  F02M25/08

CPC分类号： F02D41/0042 ,  F02D41/0045 ,  F02M25/08 ,  F02D41/0032

摘要： Fuel-vapor evaporating from a fuel tank is led through a vapor pipe and absorbed in a charcoal canister. Fuel-vapor stored in the charcoal canister is supplied to an inlet pipe when a purge valve is opened when the engine is driven, because the pressure in the inlet pipe is low. Fuel-vapor is then burned as fuel in the engine. If the opening of the purge valve is suddenly increased at the start of the purge, the air fuel ratio control is disturbed. Therefore, the purge rate is gradually increased and the vapor concentration of the fuel-vapor purged from the charcoal canister is learned, and the change rate of the purge rate is made small because the air-fuel ratio control may be disturbed when the vapor concentration is not learned enough.

摘要翻译： 从燃料箱蒸发的燃料蒸气被引导通过蒸气管并吸收在炭罐中。 由于入口管内的压力较低，因此当发动机被驱动时打开吹扫阀时，储存在炭罐中的燃料蒸气被供给入口管。 然后，燃料蒸汽作为发动机中的燃料燃烧。 如果在清洗开始时清洗阀的打开突然增加，则空燃比控制被扰乱。 因此，吹扫速度逐渐增加，并且从木炭罐吹扫的燃料蒸气的蒸气浓度被学习，并且由于空气 - 燃料比控制可能在蒸汽浓度 不够学习

公开(公告)号：US5558072A

公开(公告)日：1996-09-24

申请号：US413526

申请日：1995-03-30

申请人： Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiro Iwano ,  Shuji Yuda

发明人： Kenji Harima ,  Toshinari Nagai ,  Hiroshi Kanai ,  Akinori Osanai ,  Kazuhiro Iwano ,  Shuji Yuda

IPC分类号： F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/34 ,  F02D45/00 ,  F02M25/08 ,  F02D41/04

CPC分类号： F02M25/08 ,  F02D41/0032 ,  F02D2200/703

摘要： Fuel-vapor evaporating from a fuel tank is led though a vapor pipe and absorbed in a charcoal canister. Though the evaporating rate is influenced by the altitude where the automobile operates, the air-fuel ratio must be controlled within the proper range. This apparatus controls a purge valve in accordance with the purge rate which is determined based on the standard atmospheric pressure and compensated in accordance with the present atmospheric pressure. Therefore, this apparatus can precisely control the amount of purged fuel and the air-fuel ratio.

摘要翻译： 从燃料箱蒸发的燃料蒸汽通过蒸气管引导并吸收在炭罐中。 虽然蒸发速率受到汽车运行高度的影响，空燃比必须控制在适当的范围内。 该装置根据基于标准大气压力确定的吹扫速率控制排气阀，并根据当前的大气压进行补偿。 因此，该装置可以精确地控制清除燃料的量和空燃比。

公开(公告)号：US20100006045A1

公开(公告)日：2010-01-14

申请号：US12443742

申请日：2008-01-18

申请人： Tomohiro Nakano ,  Shuji Yuda ,  Masakatsu Nagai ,  Takahiro Uchida

发明人： Tomohiro Nakano ,  Shuji Yuda ,  Masakatsu Nagai ,  Takahiro Uchida

IPC分类号： F01L1/34 ,  F15B13/16

CPC分类号： F01L1/344 ,  F01L1/3442 ,  F01L2001/34426 ,  F01L2001/3443 ,  F01L2800/00

摘要： In a hydraulic actuator control device, a changing tendency of responsiveness of a hydraulic actuator to changes in the oil control valve (OCV) drive duty of a virtual OCV is stored as model control characteristics. The ratio of an actual OCV dead zone width to a virtual OCV dead zone width is calculated as an OCV variation correction coefficient. A basic control amount is calculated based on a deviation between an operating amount and a target operating amount of the hydraulic actuator. An actual OCV in-dead-zone control amount is obtained by correcting a virtual OCV in-dead-zone control amount with the OCV variation correction coefficient, and an actual OCV out-of-dead-zone control amount is calculated based on a virtual OCV out-of-dead-zone control amount. The actual OCV control amount is the sum of the actual OCV in-dead-zone control amount and the actual OCV out-of-dead-zone control amount.

摘要翻译： 在液压致动器控制装置中，作为模型控制特性存储液压致动器对虚拟OCV的油控制阀（OCV）驱动占空比的变化的变化趋势。 实际OCV死区宽度与虚拟OCV死区宽度的比率被计算为OCV变化校正系数。 基于液压致动器的操作量和目标操作量之间的偏差来计算基本控制量。 通过用OCV变化校正系数校正虚拟OCV死区控制量来获得实际的OCV死区控制量，并且基于虚拟的OCV变化校正系数计算实际的OCV死区间控制量 OCV死区控制量。 实际的OCV控制量是实际OCV死区控制量与实际OCV死区间控制量的总和。

公开(公告)号：US20070283935A1

公开(公告)日：2007-12-13

申请号：US11798261

申请日：2007-05-10

申请人： Shuji Yuda ,  Masakatsu Nagai ,  Tomohiro Nakano ,  Takahiro Uchida

发明人： Shuji Yuda ,  Masakatsu Nagai ,  Tomohiro Nakano ,  Takahiro Uchida

IPC分类号： F02M57/02 ,  F02M37/04

CPC分类号： F02D41/065 ,  F02D41/08 ,  F02D41/22 ,  F02D41/266 ,  F02D41/3082 ,  F02D41/3845 ,  F02D41/3863 ,  F02M59/447 ,  F02M63/027 ,  F02M63/0295

摘要： A fuel pump control apparatus for an internal combustion engine includes a plurality of fuel pumps that discharge fuel so that the discharged fuel is supplied to the internal combustion engine; and a controller that determines whether to supply the fuel discharged from one of the plurality of fuel pumps to the internal combustion engine, or to supply all the fuel discharged from the plurality of fuel pumps together to the internal combustion engine, based on the operating condition of the internal combustion engine.

摘要翻译： 一种用于内燃机的燃料泵控制装置，包括：多个燃料泵，其排出燃料，使得排出的燃料被供给至内燃机; 以及控制器，其基于所述操作条件，确定是否将从所述多个燃料泵中的一个排出的燃料供给到所述内燃机，或者将从所述多个燃料泵排出的所有燃料一起供应到所述内燃机 的内燃机。

公开(公告)号：US5544638A

公开(公告)日：1996-08-13

申请号：US413576

申请日：1995-03-30

申请人： Shuji Yuda

发明人： Shuji Yuda

IPC分类号： F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D45/00 ,  F02M25/08

CPC分类号： F02D41/2448 ,  F02D41/0045 ,  F02D41/2454 ,  F02M25/08 ,  F02D41/0032 ,  F02D41/0042

摘要： Fuel-vapor evaporating from a fuel tank 13 is led through a vapor pipe 133 and absorbed in a charcoal canister 14. When a large amount of fuel is trapped in the charcoal canister, the learning of the basic air-fuel ratio correction factor executed in the control system 15 is interrupted in order to avoid faulty learning and the purging of fuel from the charcoal canister to the engine is continued in order to ensure sufficient fuel-purging. Only when a small amount of fuel is trapped in the charcoal canister, and the engine is driving in the region where the basic air-fuel ratio correction factor has not been learned, its learning is executed.

摘要翻译： 从燃料箱13蒸发的燃料蒸汽被引导通过蒸气管133并吸收在炭罐14中。当大量的燃料被捕获在炭罐中时，基础空燃比校正因子的学习在 控制系统15被中断以避免错误的学习，并且继续从燃炭罐向发动机清除燃料，以确保足够的燃料净化。 只有当少量的燃料被捕获到炭罐中，并且发动机在没有获得基本空燃比校正因子的区域中行驶时，就执行其学习。

公开(公告)号：US20110283688A1

公开(公告)日：2011-11-24

申请号：US13146349

申请日：2010-01-27

申请人： Shuji Yuda

发明人： Shuji Yuda

IPC分类号： F01N3/10

CPC分类号： F02D41/0087 ,  F01N3/101 ,  F01N13/011 ,  F02D37/02 ,  F02D41/0082 ,  F02D41/0245 ,  F02D2200/0802 ,  F02P5/1512 ,  Y02T10/22 ,  Y02T10/26

摘要： When the cut-off cylinder operation execution condition of a multi-cylinder internal combustion engine is fulfilled, the temperature of the catalytic converter provided in the exhaust passage linked to the cylinders that are made inoperative during the cut-off cylinder operation is estimated, and when this temperature is less than the predetermined preliminary heating requiring temperature, a catalyst preliminary heating operation is executed by which the ignition timing of the cylinders is delayed and the temperature of the catalytic converter is raised. Then, the cut-off cylinder operation is started after the temperature of the catalytic converter becomes equal to or higher than the preliminary heating requiring temperature.

摘要翻译： 当满足多气缸内燃机的切断气缸操作执行条件时，估计设置在与切断气缸操作期间不工作的气缸相连的排气通道中的催化转化器的温度， 当该温度小于预定的预热需求温度时，执行催化剂预加热操作，由此气缸的点火正时被延迟并且催化转化器的温度升高。 然后，在催化转化器的温度等于或高于预热需求温度之后开始切断气缸操作。

公开(公告)号：US20090183500A1

公开(公告)日：2009-07-23

申请号：US12354903

申请日：2009-01-16

申请人： Takahiro Uchida ,  Shuji Yuda ,  Masakatsu Nagai ,  Tomohiro Nakano

发明人： Takahiro Uchida ,  Shuji Yuda ,  Masakatsu Nagai ,  Tomohiro Nakano

IPC分类号： F01N3/00

CPC分类号： F02D41/0002 ,  F02D41/0032 ,  F02D41/0085 ,  F02M25/0827 ,  Y02T10/42

摘要： An evaporative fuel treatment apparatus for an internal combustion engine includes: a communication portion that communicates a plurality of branch passages with one another at positions downstream of the plurality of throttle valves; a purge passage that introduces purge gas, containing evaporative fuel, to the communication portion; an air supply passage that flows dilution air, which is used to dilute the evaporative fuel, into the purge passage; a first flow rate changing portion that is provided in the air supply passage and that is able to change the inflow of the dilution air; and a control unit that controls the first flow rate changing portion.

摘要翻译： 一种用于内燃机的蒸发燃料处理装置，包括：在多个节流阀的下游位置处将多个分支通路彼此连通的连通部; 净化通道，其将包含蒸发燃料的吹扫气体引入所述连通部分; 将用于稀释蒸发燃料的稀释空气流入净化通道的供气通道; 第一流量变化部，其设置在所述供气通道中并且能够改变所述稀释空气的流入; 以及控制单元，其控制第一流量变化部。

公开(公告)号：US08225763B2

公开(公告)日：2012-07-24

申请号：US12443742

申请日：2008-01-18

申请人： Tomohiro Nakano ,  Shuji Yuda ,  Masakatsu Nagai ,  Takahiro Uchida

发明人： Tomohiro Nakano ,  Shuji Yuda ,  Masakatsu Nagai ,  Takahiro Uchida

IPC分类号： F01L1/34

CPC分类号： F01L1/344 ,  F01L1/3442 ,  F01L2001/34426 ,  F01L2001/3443 ,  F01L2800/00

摘要： In a hydraulic actuator control device, a changing tendency of responsiveness of a hydraulic actuator to changes in the oil control valve (OCV) drive duty of a virtual OCV is stored as model control characteristics. The ratio of an actual OCV dead zone width to a virtual OCV dead zone width is calculated as an OCV variation correction coefficient. A basic control amount is calculated based on a deviation between an operating amount and a target operating amount of the hydraulic actuator. An actual OCV in-dead-zone control amount is obtained by correcting a virtual OCV in-dead-zone control amount with the OCV variation correction coefficient, and an actual OCV out-of-dead-zone control amount is calculated based on a virtual OCV out-of-dead-zone control amount. The actual OCV control amount is the sum of the actual OCV in-dead-zone control amount and the actual OCV out-of-dead-zone control amount.

摘要翻译： 在液压致动器控制装置中，作为模型控制特性存储液压致动器对虚拟OCV的油控制阀（OCV）驱动占空比的变化的变化趋势。 实际OCV死区宽度与虚拟OCV死区宽度的比率被计算为OCV变化校正系数。 基于液压致动器的操作量和目标操作量之间的偏差来计算基本控制量。 通过用OCV变化校正系数校正虚拟OCV死区控制量来获得实际的OCV死区控制量，并且基于虚拟的OCV变化校正系数计算实际的OCV死区间控制量 OCV死区控制量。 实际的OCV控制量是实际OCV死区控制量与实际OCV死区间控制量的总和。