公开(公告)号：US20060090456A1

公开(公告)日：2006-05-04

申请号：US11196422

申请日：2005-08-04

申请人： Hideaki Tani ,  Kuen Yehliu ,  Keiichi Enoki ,  Tadahiro Azuma

发明人： Hideaki Tani ,  Kuen Yehliu ,  Keiichi Enoki ,  Tadahiro Azuma

IPC分类号： F01N3/00

CPC分类号： F01N11/007 ,  Y02T10/22 ,  Y02T10/47

摘要： A control apparatus for an internal combustion engine can detect degradation of a three-way catalyst with high accuracy without causing deterioration in an exhaust. A pair of first and second air fuel ratio detectors are disposed in an exhaust system at locations upstream and downstream of the three-way catalyst for detecting a first and a second air fuel ratio of an exhaust gas. A target oxygen change amount calculator calculates a target oxygen change amount of the three-way catalyst, and an oxygen change amount calculator calculates an oxygen change amount of the three-way catalyst from an amount of exhaust gas passing through the three-way catalyst and the first air fuel ratio. An air fuel ratio operator inversely controls the air fuel ratio to a rich side and a lean side with a prescribed air fuel ratio width each time the oxygen change amount reaches a target oxygen change amount.

摘要翻译： 内燃机的控制装置可以高精度地检测三元催化剂的劣化，而不会引起排气的劣化。 一对第一和第二空燃比检测器设置在用于检测排气的第一和第二空气燃料比的三元催化剂的上游和下游的排气系统中。 目标氧气变化量计算器计算三元催化剂的目标氧气变化量，氧气变化量计算器根据通过三元催化剂的排气量和三元催化剂的氧气换算量， 第一空燃比。 每当氧气变化量达到目标氧气变化量时，空燃比运算符反向控制具有规定空燃比宽度的富侧和稀侧的空燃比。

公开(公告)号：US07168240B2

公开(公告)日：2007-01-30

申请号：US11196422

申请日：2005-08-04

申请人： Hideaki Tani ,  Kuen Yehliu ,  Keiichi Enoki ,  Tadahiro Azuma

发明人： Hideaki Tani ,  Kuen Yehliu ,  Keiichi Enoki ,  Tadahiro Azuma

IPC分类号： F01N3/00

CPC分类号： F01N11/007 ,  Y02T10/22 ,  Y02T10/47

摘要： A control apparatus for an internal combustion engine can detect degradation of a three-way catalyst with high accuracy without causing deterioration in an exhaust. A pair of first and second air fuel ratio detectors are disposed in an exhaust system at locations upstream and downstream of the three-way catalyst for detecting a first and a second air fuel ratio of an exhaust gas. A target oxygen change amount calculator calculates a target oxygen change amount of the three-way catalyst, and an oxygen change amount calculator calculates an oxygen change amount of the three-way catalyst from an amount of exhaust gas passing through the three-way catalyst and the first air fuel ratio. An air fuel ratio operator inversely controls the air fuel ratio to a rich side and a lean side with a prescribed air fuel ratio width each time the oxygen change amount reaches a target oxygen change amount.

摘要翻译： 内燃机的控制装置可以高精度地检测三元催化剂的劣化，而不会引起排气的劣化。 一对第一和第二空燃比检测器设置在用于检测排气的第一和第二空气燃料比的三元催化剂的上游和下游的排气系统中。 目标氧气变化量计算器计算三元催化剂的目标氧气变化量，氧气变化量计算器根据通过三元催化剂的排气量和三元催化剂的氧气换算量， 第一空燃比。 每当氧气变化量达到目标氧气变化量时，空燃比运算符反向控制具有规定空燃比宽度的富侧和稀侧的空燃比。

公开(公告)号：US06668813B2

公开(公告)日：2003-12-30

申请号：US10062444

申请日：2002-02-05

申请人： Tadahiro Azuma ,  Keiichi Enoki ,  Teruaki Kawakami

发明人： Tadahiro Azuma ,  Keiichi Enoki ,  Teruaki Kawakami

IPC分类号： F02D4100

CPC分类号： F02D41/027 ,  F01N3/28 ,  F01N13/009 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/40 ,  F02D2041/1422 ,  F02D2200/0408

摘要： An air-fuel ratio control device for an internal combustion engine is provided with: an air-fuel ratio sensor; an O2 sensor; a device for setting a reference air-fuel ratio target value; a device for setting a target value of an output value of the O2 sensor; a device for obtaining an air-fuel ratio target value correction value; a device for obtaining a forcible air-fuel ratio oscillation width target value; a device for computing an air-fuel ration target value; a device for computing a correction value; a device for obtaining a forcible air-fuel ratio oscillating width injector driving time correction value; and a device for setting injector driving time.

公开(公告)号：US06408825B1

公开(公告)日：2002-06-25

申请号：US09985854

申请日：2001-11-06

申请人： Keiichi Enoki ,  Tadahiro Azuma ,  Takeshi Kakigi

发明人： Keiichi Enoki ,  Tadahiro Azuma ,  Takeshi Kakigi

IPC分类号： F02M4100

CPC分类号： F02D41/042 ,  F02D41/3082 ,  F02D2041/225 ,  F02D2200/0602 ,  F02D2250/31

摘要： In an internal combustion engine system, a fuel injection control apparatus for preventing fuel leakage with high reliability in the engine-stopped state. The apparatus includes various types of sensors (5, 6, 14, 15) for detecting operation states of an internal combustion engine (1), a fuel pump (24) and a fuel supply pipe (22) for supplying a fuel from a fuel tank (23) to the engine (1), a fuel injector (8) for injecting the fuel into the engine, an engine stoppage detecting means for detecting a stopped state of the engine (1), a fuel temperature estimating means for estimating temperature of the fuel within the fuel supply pipe (22), and a fuel pressure lowering means for lowering pressure of the fuel within the fuel supply pipe (22). The fuel pressure lowering means is designed to lower pressure of the fuel within the fuel supply pipe (22) after the stoppage of operation of the engine (1) in dependence on an estimated fuel temperature determined by the fuel temperature estimating means.

摘要翻译： 在内燃机系统中，具有在发动机停止状态下以高可靠性防止燃料泄漏的燃料喷射控制装置。 该装置包括用于检测内燃机（1）的操作状态的各种类型的传感器（5,6,14,15），用于从燃料供给燃料的燃料泵（24）和燃料供给管（22） 发动机（1）的燃料箱（23），用于将燃料喷射到发动机中的燃料喷射器（8），用于检测发动机（1）的停止状态的发动机停止检测装置，用于估计温度的燃料温度估计装置 燃料供给管（22）内的燃料的燃料压力降低装置，以及用于降低燃料供给管（22）内的燃料的压力的燃料压力降低装置。 燃料压力降低装置被设计成根据由燃料温度估计装置确定的估计燃料温度，在发动机（1）停止运行之后降低燃料供给管（22）内的燃料的压力。

公开(公告)号：US06640763B2

公开(公告)日：2003-11-04

申请号：US09964695

申请日：2001-09-28

申请人： Teruaki Kawakami ,  Tadahiro Azuma ,  Keiichi Enoki

发明人： Teruaki Kawakami ,  Tadahiro Azuma ,  Keiichi Enoki

IPC分类号： F02N1108

CPC分类号： F02N11/08 ,  F02N11/0848 ,  F02N2200/023 ,  F02N2300/2011

摘要： An apparatus for controlling starting of an internal combustion engine is arranged to reduce exhaust emissions and emission variations at engine startup. The starter is driven after a lapse of the predetermined period of time from the moment at which an engine starting command is operated, so that the engine can be started when sensors and actuators attached to the engine are in optimum conditions, thereby reducing exhaust emissions and emission variations. Also, after the engine has been cranked by driving the starter, the starter is stopped after a lapse of the predetermined time from the moment at which the number of engine revolutions becomes equal to or larger than a predetermined number of revolutions. Therefore the engine can be reliably set in a suitably started condition before the starter is turned off even if the engine is in a particular condition, e.g., an extremely-low-temperature condition such that combustion in the engine is unstable and the engine can stall easily.

公开(公告)号：US06886531B1

公开(公告)日：2005-05-03

申请号：US10943932

申请日：2004-09-20

申请人： Teruaki Kawakami ,  Tadahiro Azuma ,  Toshiki Kuroda ,  Hiroyuki Kobayashi

发明人： Teruaki Kawakami ,  Tadahiro Azuma ,  Toshiki Kuroda ,  Hiroyuki Kobayashi

IPC分类号： F02D9/02 ,  F02D11/10 ,  F02D29/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/22 ,  F02D45/00 ,  F02D7/00

CPC分类号： F02D41/0205 ,  F02D11/105 ,  F02D41/0002 ,  F02D41/187 ,  F02D2200/0404 ,  F02D2200/501 ,  F02D2200/602 ,  Y02T10/42

摘要： A control apparatus for an internal combustion engine can limit a vehicle speed within a permitted maximum speed with high accuracy by preventing a response delay of a throttle opening with respect to an amount of intake air while avoiding deterioration of driveability. The apparatus includes a target opening calculating section that calculates a target opening of an electronic throttle valve from an accelerator opening, and an electronic control section that drives the electronic throttle valve to make the throttle opening coincide with the target opening. The target opening calculating section includes a correction factor calculating section that calculates a correction factor for correcting the target opening. The correction factor calculating section sets arithmetic calculation gains of mutually different correction factors for ranges of different characteristics in accordance with characteristics between the throttle opening and the intake air amount, whereby the target opening is controlled to prevent the vehicle speed from exceeding the permitted maximum speed.

摘要翻译： 用于内燃机的控制装置可以通过防止节气门开度相对于进气量的响应延迟同时避免驾驶性能的恶化，以高精度将车速限制在允许的最大速度内。 该装置包括从加速器开度计算电子节气门的目标开度的目标开度计算部，以及驱动电子节气门使油门开度与目标开度一致的电子控制部。 目标开度计算部分包括校正因子计算部分，其计算用于校正目标开度的校正因子。 校正系数计算部根据节气门开度和进气量之间的特性，对不同特性的范围设定相互不同的校正系数的算术计算增益，由此控制目标开度以防止车速超过允许的最大速度 。

公开(公告)号：US06513322B2

公开(公告)日：2003-02-04

申请号：US09789633

申请日：2001-02-22

申请人： Hirofumi Ohuchi ,  Tadahiro Azuma

发明人： Hirofumi Ohuchi ,  Tadahiro Azuma

IPC分类号： F01N300

CPC分类号： F02D41/024 ,  F01N2430/06 ,  F02D2200/0804 ,  Y02T10/26

摘要： A device for controlling the rise of the catalyst temperature in an internal combustion engine, capable of quickly raising the catalyst temperature at the start to satisfy the exhaust gas regulations to a sufficient degree. The device comprises a means for picking up data corresponding to the temperature of the catalyst provided in the exhaust pipe of the internal combustion engine as catalyst temperature TC, a variety of sensors for detecting the operation conditions of the internal combustion engine, a means for controlling the air-to-fuel ratio of the internal combustion engine depending upon the operation conditions, and an air-to-fuel ratio lean-correction means S3 which, when the catalyst temperature is lower than a predetermined temperature corresponding to an activating temperature of the catalyst, corrects a target air-to-fuel ratio A/Fo toward the lean side to promote the activation of the catalyst, wherein the variety of sensors detect at least intake-air-amount data and crank angle data, and, when the temperature of the catalyst is lower than the predetermined temperature, the air-to-fuel ratio lean-correction means sets the target air-to-fuel ratio to a lean activating air-to-fuel ratio which is larger than an air-to-fuel ratio A/Fn of during the normally controlled operation and is higher than a stoichiometric air-to-fuel ratio.

摘要翻译： 用于控制内燃机中的催化剂温度上升的装置，其能够在足够的程度上快速提高催化剂起始温度以满足排气规定。 该装置包括用于拾取与设置在内燃机的排气管中的催化剂的温度相对应的数据作为催化剂温度TC的装置，用于检测内燃机的运行状态的各种传感器，用于控制的装置 内燃机的空燃比取决于运行条件，以及空燃比稀馏校正装置S3，当催化剂温度低于对应于该活塞温度的规定温度时， 催化剂，将目标空燃比A / Fo朝向贫侧校正，以促进催化剂的活化，其中各种传感器检测至少进气量数据和曲柄角数据，并且当温度 的催化剂低于预定温度时，空气 - 燃料比稀释校正装置将目标空燃比设定为稀薄活化空气燃料比，其中 大于正常控制运转时的空燃比A / Fn，高于化学计量的空燃比。

公开(公告)号：US06823830B2

公开(公告)日：2004-11-30

申请号：US10155983

申请日：2002-05-29

申请人： Tadahiro Azuma

发明人： Tadahiro Azuma

IPC分类号： F02B7708

CPC分类号： F02D41/0087 ,  F02D41/065 ,  F02D41/068 ,  F02D41/1454 ,  F02D41/187 ,  F02D2200/0404

摘要： A cylinder disabling control apparatus for a multi-cylinder engine is provided which is capable of efficiently reducing the exhaust gas of the engine immediately after the starting thereof. The cylinder disabling control apparatus includes a variety of sensors (2, 3, 12-14, and 16), a catalytic converter (17) and a cylinder disabling control element (21) for inhibiting or stopping fuel supplied to the at least one specific cylinder in accordance with the engine operating conditions. The variety of sensors includes a water temperature sensor (14) for detecting a temperature of cooling water (WT). When the temperature (WT) upon starting of the engine 6 is equal to or higher than a first predetermined temperature (WT1), the cylinder disabling control element (21) performs cylinder disabling control on the at least one specific cylinder until a predetermined time has elapsed immediately after the starting of the engine (6).

摘要翻译： 提供了一种用于多缸发动机的气缸禁用控制装置，其能够在起动之后立即有效地减少发动机的排气。 气缸禁用控制装置包括各种传感器（2,3,12-14和16），催化转换器（17）和气缸禁用控制元件（21），用于抑制或停止供应至少一个具体的燃料 气缸根据发动机的运行条件。 各种传感器包括用于检测冷却水（WT）的温度的水温传感器（14）。 当发动机6起动时的温度（WT）等于或高于第一预定温度（WT1）时，气缸禁用控制元件（21）对至少一个特定气缸进行气缸禁用控制，直到预定时间具有 在发动机（6）起动之后立即经过。

公开(公告)号：US06594988B2

公开(公告)日：2003-07-22

申请号：US09998424

申请日：2001-12-03

申请人： Hideki Takubo ,  Tadahiro Azuma

发明人： Hideki Takubo ,  Tadahiro Azuma

IPC分类号： F01N300

CPC分类号： F02D41/126 ,  F02D41/0295 ,  Y02T10/22

摘要： Achieved is an air/fuel ratio control apparatus for an internal combustion engine where the purification ability of a three-way catalyst is brought back to an optimal state immediately after a fuel cut by expelling oxygen absorbed by the three-way catalyst due to the fuel cut without being affected by the oxygen absorption amount of the three-way catalyst before the fuel cut.

摘要翻译： 实现了一种用于内燃机的空燃比控制装置，其中三通催化剂的净化能力在通过排出由于燃料而被三元催化剂吸收的氧的燃料切断之后立即恢复到最佳状态 在燃料切断前不受三元催化剂的氧吸收量的影响。

公开(公告)号：US06474307B1

公开(公告)日：2002-11-05

申请号：US09702814

申请日：2000-11-01

申请人： Hirofumi Ohuchi ,  Tadahiro Azuma

发明人： Hirofumi Ohuchi ,  Tadahiro Azuma

IPC分类号： F02D4104

CPC分类号： F02D41/062 ,  F01P2025/08 ,  F02D41/1497 ,  F02D41/402 ,  F02D2200/0611 ,  Y02T10/44

摘要： The fuel injection control device includes a revolution detecting unit for detecting revolution of an internal combustion engine, an injector for injecting fuel into the internal combustion engine, and a fuel injection control unit for controlling the injection of fuel of the injector. The fuel injection control unit includes an engine-start-completion detecting unit for detecting whether or not the internal combustion engine has started, and a fuel-injection-amount correcting unit for correcting the amount of fuel to be injected, after the engine has started, by an amount of fuel for correction obtained by considering the amount of fuel remaining uncombusted when starting the engine and in accordance with one of the frequency of fuel injection, revolution of the internal combustion engine, and the elapse of time.

摘要翻译： 燃料喷射控制装置包括用于检测内燃机的旋转的旋转检测单元，用于将燃料喷射到内燃机中的喷射器，以及用于控制喷射器的燃料喷射的燃料喷射控制单元。 燃料喷射控制单元包括用于检测内燃机是否起动的发动机起动完成检测单元和在发动机起动之后校正待喷射燃料量的燃料喷射量校正单元 通过考虑在起动发动机时未燃烧的燃料量获得的一定量的用于校正的燃料，并且根据燃料喷射的频率，内燃机的转速和时间的流逝中的一种。