公开(公告)号：US06804953B2

公开(公告)日：2004-10-19

申请号：US10321432

申请日：2002-12-18

Applicant: Jiro Kondo

Inventor： Jiro Kondo

IPC: F01N300

CPC classification number: F02D41/008 ,  F01N3/0842 ,  F02B29/00 ,  F02D11/10 ,  F02D41/0002 ,  F02D41/0082 ,  F02D41/024 ,  F02D41/0275 ,  F02D41/068 ,  F02D41/1441 ,  F02D41/1446 ,  F02D41/1456 ,  F02D41/1475 ,  F02D2200/0404 ,  F02D2250/36 ,  Y02T10/146 ,  Y02T10/42

Abstract: An engine control system has a controller and intake control devices for controlling air amount introduced into each of the cylinders. The controller has a lean burn control block and a warm up control block. Both blocks operate two cylinders under a lean air-fuel ratio, and operate remaining two cylinders under a rich air-fuel ratio. Both blocks control at least the intake control devices to adjust air-fuel ratio.

Abstract translation: 发动机控制系统具有用于控制引入每个气缸的空气量的控制器和进气控制装置。 控制器具有稀燃控制块和预热控制块。 两个车厢在贫空燃比条件下运行两个汽缸，并在较大的空燃比下运行剩余的两个汽缸。 两个块至少控制进气控制装置以调节空燃比。

公开(公告)号：US20040182071A1

公开(公告)日：2004-09-23

申请号：US10392538

申请日：2003-03-21

Inventor： Gopichandra Surnilla ,  Christian Thomas Goralski JR.

IPC: F01N003/00

CPC classification number: F01N3/0885 ,  F01N3/00 ,  F01N13/009 ,  F01N13/0093 ,  F02D41/0275 ,  F02D41/1454 ,  F02D41/1475 ,  F02D41/187 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0802 ,  F02P5/045 ,  Y02T10/20

Abstract: A system for an engine is shown that includes an upstream emission control device and a downstream emission control device. The upstream device has a washcoat having a predetermined amount of precious metal disassociated with NOx storage material. In one example, the upstream emission control device located in a close-coupled location receiving untreated exhaust gasses from the engine. A controller is utilized for adjusting parameters of the engine. For example, the controller operates the engine lean, with periodic rich operation to purge stored NOx during at least a portion of low engine airflow and low exhaust temperature conditions. The controller also operates the engine near stoichiometry during at least a portion of other conditions.

Abstract translation: 示出了一种用于发动机的系统，其包括上游排放控制装置和下游排放控制装置。 上游装置具有与NOx储存材料分离的预定量的贵金属的修补基面涂层。 在一个示例中，上游排放控制装置位于紧密耦合的位置，从发动机接收未经处理的废气。 控制器用于调整发动机的参数。 例如，在低发动机气流和低排气温度条件的至少一部分期间，控制器操作发动机倾斜，具有周期性的丰富操作以清除存储的NOx。 在其他条件的至少一部分中，控制器还将发动机操作为接近化学计量。

公开(公告)号：US06775608B2

公开(公告)日：2004-08-10

申请号：US10349966

申请日：2003-01-24

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: B60T712

CPC classification number: F02D41/1458 ,  F01N13/0097 ,  F02D41/027 ,  F02D41/126 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1475 ,  F02D2041/1416 ,  F02D2041/1423 ,  F02D2041/1433

Abstract: A controller for controlling an air-fuel ratio of an engine is provided. An exhaust gas sensor is provided between an upstream catalyst disposed upstream of an exhaust pipe and a downstream catalyst disposed downstream of the exhaust pipe. A virtual exhaust gas sensor is configured downstream of the downstream catalyst. After an operating state in which the air-fuel is lean is cancelled, or after a fuel cut is cancelled, an estimated output of the virtual exhaust gas sensor is estimated based on a gas amount that contributes to reduction of the upstream and downstream catalysts and a detected output of the exhaust gas sensor provided between the upstream and downstream catalysts. The air-fuel ratio of the engine is controlled in accordance with the estimated output of the virtual exhaust gas sensor. Thus, the catalyst converter is appropriately reduced in accordance with a load of the engine and a state of the catalyst. When the reduction process is completed, an adaptive air-fuel ratio control based on the output of the exhaust gas sensor is started.

Abstract translation: 提供一种用于控制发动机的空燃比的控制器。 排气传感器设置在位于排气管上游的上游催化剂和位于排气管下游的下游催化剂​​之间。 虚拟废气传感器配置在下游催化剂​​的下游。 在消除空气燃料的操作状态被消除之后或在燃料切断被取消之后，基于有助于减少上游和下游催化剂​​的气体量估计虚拟废气传感器的估计输出，并且 设置在上游催化剂和下游催化剂​​之间的废气传感器的检测输出。 根据虚拟废气传感器的估计输出来控制发动机的空燃比。 因此，根据发动机的负荷和催化剂的状态适当地减少催化剂转化器。 当还原处理完成时，开始基于排气传感器的输出的适应性空燃比控制。

公开(公告)号：US20040107696A1

公开(公告)日：2004-06-10

申请号：US10633117

申请日：2003-08-01

Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.

Inventor： Clive Harrison ,  Garon Nigel Heslop ,  Jon Dixon ,  Mark Paul Guerrier

IPC: F01N003/00

CPC classification number: F01N9/005 ,  F02D41/0295 ,  F02D41/1402 ,  F02D41/1439 ,  F02D41/1446 ,  F02D41/1454 ,  F02D41/1475 ,  F02D41/1479 ,  F02D41/2454 ,  F02D2041/1433 ,  F02D2200/0814 ,  Y02T10/47

Abstract: This invention relates to an apparatus for controlling the air-fuel ratio demanded by a fuel controller in order to maintain optimum performance of a catalytic converter. Provided is an open loop fuel controller comprising a detector arranged down stream of a catalyst for detecting rich breakthrough; a catalyst model having an estimator for estimating a stored oxygen level in the catalyst; a comparator for comparing an estimated stored oxygen level with a plurality of predetermined thresholds; demand adjusting means for adjusting an air fuel ratio demand in dependence upon a received signal from said comparator and upon a received signal from said detector. A method of open loop fuel control is also provided.

Abstract translation: 本发明涉及一种用于控制由燃料控制器要求的空燃比以便维持催化转化器的最佳性能的装置。 提供了一种开环燃料控制器，其包括设置在催化剂下游的检测器，用于检测丰富的突破; 催化剂模型，其具有用于估计催化剂中存储的氧气水平的估计器; 比较器，用于将估计存储的氧气水平与多个预定阈值进行比较; 需求调节装置，用于根据来自所述比较器的接收信号和来自所述检测器的接收信号来调整空燃比要求。 还提供了开环燃料控制的方法。

公开(公告)号：US20040086441A1

公开(公告)日：2004-05-06

申请号：US10600571

申请日：2003-06-23

Inventor： Masao Hori ,  Akihisa Okumura ,  Makoto Horiuchi

IPC: B01D053/00

CPC classification number: F01N3/10 ,  B01D53/945 ,  B01D53/9495 ,  F01N3/0842 ,  F01N3/20 ,  F02B23/104 ,  F02B2075/125 ,  F02D41/1475 ,  F02D2041/389 ,  F02M69/045 ,  Y02T10/123 ,  Y02T10/22

Abstract: A process for purifying exhaust gas from a gasoline engine of the fuel-direct-injection type purifies exhaust gas that varies, in response to changes in the air-fuel ratio, between the first exhaust-gas state featured by an air-fuel ratio in the vicinity of the stoichiometrical air-fuel ratio and the second exhaust-gas state that forms a more oxidizing, low-temperature atmosphere and that is featured by an air-fuel ratio greater than the stoichiometrical air-fuel ratio, by using an exhaust-gas purifying catalyst (12) that contains at least one kind of noble metals, such as platinum, and transition metals. With the above-mentioned process, exhaust gas, which is discharged from a gasoline engine of the fuel-direct-injection type (1) that allows the air-fuel ratio to change between the stoichiometrical air-fuel ratio and air-fuel ratios within the lean burn mode, is purified by using the single purifying-use catalyst; therefore, it is possible to simplify the purifying operation for exhaust gas whose compositions and temperature vary widely due to frequent changes in the air-fuel ratio.

Abstract translation: 用于净化燃料直接喷射型汽油发动机的废气的方法净化排气，该废气响应于空燃比的变化而变化，其特征在于以空燃比为特征的第一废气状态 化学计量空燃比和第二废气状态附近，形成氧化性较差的低温气氛，其特征在于空燃比大于化学计量空燃比， 气体净化催化剂（12），其含有至少一种贵金属如铂，过渡金属。 通过上述处理，从燃料直接喷射式（1）的汽油发动机排出的废气，其允许空燃比在化学计量空燃比和空燃比之间变化 稀燃模式通过使用单一纯化用催化剂进行纯化; 因此，能够简化由于空燃比的频繁变化，其组成和温度变化很大的废气的净化操作。

公开(公告)号：US20040045277A1

公开(公告)日：2004-03-11

申请号：US10654471

申请日：2003-09-04

Inventor： Yasuki Tamura

IPC: F01N003/00

CPC classification number: F01N3/0857 ,  F01N2430/06 ,  F01N2570/12 ,  F02D41/1441 ,  F02D41/1475 ,  Y02T10/20 ,  Y02T10/22

Abstract: An exhaust emission control device of an internal-combustion engine comprises a three-way catalytic converter provided in an exhaust passage of the internal-combustion engine, and an air-fuel ratio varying element for forcedly varying an air-fuel ratio of exhaust flowing into the three-way catalytic converter, between a rich air-fuel ratio and a lean air-fuel ratio. A variation characteristic altering element for altering a characteristic of the air-fuel ratio variation is provided, and the three-way catalytic converter has a HC selective oxidizing component for selectively oxidizing HC rather than CO, and a CO storage component for storing CO in a reducing atmosphere. The variation characteristic altering element alters a characteristic of the air-fuel variation (such as an A/F variation period) depending on an stored CO quantity correlative value (such as a quantity of flowing-in CO) which correlates with a quantity of CO stored by the CO storage component (S12).

Abstract translation: 一种内燃机的废气排放控制装置，具备设置在内燃机的排气通路内的三元催化转化器，以及用于强制变更排出的排气的空燃比的空燃比变更元件 三元催化转化器之间，富空燃比与稀空燃比之间。 提供了用于改变空燃比变化特性的变化特性改变元件，并且三元催化转化器具有用于选择性地氧化HC而不是CO的HC选择性氧化组分，以及用于将CO存储在CO中的CO储存组分 减少气氛。 变化特征改变元件根据与CO量相关的存储的CO量相关值（例如流入CO的量）来改变空气燃料变化（例如A / F变化周期）的特性 由存储组件存储（S12）。

公开(公告)号：US20040040540A1

公开(公告)日：2004-03-04

申请号：US10232914

申请日：2002-08-30

Inventor： Daniel Robert Blakley

IPC: F02B017/00

CPC classification number: F02M57/027 ,  F02B17/00 ,  F02D41/003 ,  F02D41/1475 ,  F02D2400/18 ,  F02M51/04 ,  F02M51/06 ,  F02M53/06 ,  F02M61/02 ,  F02M61/166 ,  F02M69/04 ,  F02M69/08

Abstract: A fuel delivery system includes a drop ejector for discretely ejecting drops of combustible liquid in a digital manner. A controller is configured to cause the drop ejector to provide a first air/fuel mixture to a combustion chamber for a first portion of a fuel intake period and to provide a second air/fuel mixture to said combustion chamber for a second portion of the same fuel intake period.

Abstract translation: 燃料输送系统包括用于以数字方式离散喷射可燃液体液滴的液滴喷射器。 控制器被配置成使得液滴喷射器在燃料进入时段的第一部分向燃烧室提供第一空气/燃料混合物，并且将第二空气/燃料混合物提供给所述燃烧室用于其第二部分 燃油摄入期。

公开(公告)号：US20040040283A1

公开(公告)日：2004-03-04

申请号：US10653146

申请日：2003-09-03

Applicant: Honda Giken Kogyo Kabushiki Kaisha

Inventor： Yuji Yasui ,  Akihiro Shinjo ,  Tatsuhito Esaki ,  Naoto Fujimura

IPC: F01N003/00

CPC classification number: F02D41/126 ,  F01N13/0097 ,  F02D41/1402 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1475 ,  F02D41/2441 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414

Abstract: An air fuel ratio controller for an internal combustion engine comprises an exhaust gas sensor, an identifier and a control unit. The exhaust gas sensor detects oxygen concentration of exhaust gas. The identifier calculates model parameters for a model of a controlled object based on the output of the exhaust gas sensor. The controlled object includes an exhaust system of the engine. The control unit is configured to use the model parameters to control the air-fuel ratio so that the output of the exhaust gas sensor converges to a desired value, and to stop the identifier from calculating the model parameters during and immediately after the engine operation with a lean air-fuel ratio. The calculation of the model parameters may be also stopped during and immediately after fuel-cut operation that stops fuel supply to the engine. Such a stop of the calculation of the model parameters reduces the emission of undesired substances contained in exhaust gas when the engine shifts from lean operation to stoichiometric/rich operation.

Abstract translation: 用于内燃机的空燃比控制器包括废气传感器，标识符和控制单元。 排气传感器检测废气的氧浓度。 识别器基于排气传感器的输出来计算受控对象的模型的模型参数。 受控对象包括发动机的排气系统。 控制单元被配置为使用模型参数来控制空燃比，使得废气传感器的输出收敛到期望值，并且在发动机运行期间和之后立即停止标识符计算模型参数， 贫空燃比。 模型参数的计算也可以在停止向发动机供油的燃料切断操作期间和之后立即停止。 当发动机从稀薄运转转变为化学计量/浓缩运转时，模拟参数的计算的这种停止减少废气中所含的不期望物质的排放。

公开(公告)号：US06675574B2

公开(公告)日：2004-01-13

申请号：US10193207

申请日：2002-07-12

Applicant: Shinji Nakagawa ,  Minoru Ohsuga ,  Masami Nagano

Inventor： Shinji Nakagawa ,  Minoru Ohsuga ,  Masami Nagano

IPC: F01N300

CPC classification number: F02D37/02 ,  F02D41/008 ,  F02D41/024 ,  F02D41/1408 ,  F02D41/1454 ,  F02D41/1475 ,  F02D2200/0418 ,  F02D2200/0802 ,  Y02T10/22 ,  Y02T10/26

Abstract: A control unit for an internal combustion engine can activate a three-way catalyst at the early stage and can lessen the deterioration of the exhaust in an internal combustion engine such as HC, CO, and NOx, etc. from the exhaust gas when starting. The control unit for an internal combustion engine is provided with the three-way catalyst and HC adsorbent on an exhaust side. The control unit alternately controls the A/F between a rich state and a lean state in order to quicken the activation of the three-way catalyst when the internal combustion engine starts.

Abstract translation: 用于内燃机的控制单元可以在早期激活三元催化剂，并且可以在启动时从废气中减轻诸如HC，CO和NOx等的内燃机中的排气的劣化。 用于内燃机的控制单元在排气侧设置有三元催化剂和HC吸附剂。 控制单元交替地控制富状态和稀态之间的A / F，以便在内燃机起动时加快三元催化剂的活化。

公开(公告)号：US06667622B1

公开(公告)日：2003-12-23

申请号：US09847928

申请日：2001-05-03

Applicant: Peter J. Lenehan

Inventor： Peter J. Lenehan

IPC: F02P1700

CPC classification number: F02P17/12 ,  F02D41/1441 ,  F02D41/1446 ,  F02D41/1474 ,  F02D41/1475 ,  F02D41/1481 ,  F02D41/22 ,  F02D2200/0602 ,  Y02T10/40

Abstract: A low cost, easy to use, hand held pulse stream analyzer is designed to show, after an engine stops operating, which pulse stream, ignition or injection, quit first. Additionally, the analyzer is capable, using relative time domain analysis to comparatively analyze these pulse streams to the alternator ripple pulse stream, of determining if the fuel flow to the injectors quit, thus causing the engine to quit. This information quickly gives the technician a direction to investigate to find a responsible faulty component for the problem being experienced, and is especially helpful in attempting to diagnose intermittent faults in a much more efficient manner. The inventive device is usable on virtually all brands and types of gasoline powered vehicles.

Abstract translation: 低成本，易于使用的手持脉冲流分析仪旨在显示，在发动机停止运行后，哪个脉冲流，点火或喷射首先退出。 此外，分析仪能够使用相对时域分析来比较地将这些脉冲流分析到交流发电机纹波脉冲流，以确定到喷射器的燃料流量是否退出，从而导致发动机退出。 这些信息可以帮助技术人员进行调查，寻找遇到的问题的负责任的错误组件，特别有助于以更有效的方式诊断间歇性故障。 本发明的装置几乎可用于汽油动力车辆的所有品牌和类型。