公开(公告)号：US20160265465A1

公开(公告)日：2016-09-15

申请号：US15066089

申请日：2016-03-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuji YAMAGUCHI ,  Koichi HOSHI ,  Hiroyuki HOKUTO ,  Kazuya SUZUKI ,  Yuji MIYOSHI

IPC: F02D41/24 ,  F01N11/00 ,  F02D41/02 ,  F01N3/10

CPC classification number: F02D41/2461 ,  F01N3/08 ,  F01N3/10 ,  F01N3/101 ,  F01N3/18 ,  F01N11/007 ,  F01N2430/06 ,  F01N2550/02 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/008 ,  F02D41/0235 ,  F02D41/0295 ,  F02D41/1408 ,  F02D41/1454 ,  F02D41/1475 ,  F02D41/1495 ,  F02D41/2454 ,  F02D2200/0814 ,  F02D2200/0816 ,  Y02A50/2324 ,  Y02T10/22

Abstract: The exhaust purification system comprises an exhaust purification catalyst, downstream side air-fuel ratio sensor, and control device. The control device performs average air-fuel ratio control which alternately sets a target average air-fuel ratio between a rich air-fuel ratio and a lean air-fuel ratio and inter-cylinder air-fuel ratio control which controls the target air-fuel ratios of the cylinders so that the target air-fuel ratio becomes the rich air-fuel ratio at least at one cylinder among the plurality of cylinders even if the target average air-fuel ratio is set to the lean air-fuel ratio. The control device uses a cumulative value of a first oxygen amount from when switching the target average air-fuel ratio to the lean air-fuel ratio to when again switching it to the rich air-fuel ratio and a cumulative value of a second oxygen amount from when switching the target average air-fuel ratio to the rich air-fuel ratio to when again switching it to the lean air-fuel ratio as the basis for correcting a parameter relating to the air-fuel ratio so that the difference of these becomes smaller as learning control.

Abstract translation: 排气净化系统包括排气净化催化剂，下游侧空燃比传感器和控制装置。 控制装置执行平均空燃比控制，其交替地设定浓空燃比与稀空燃比之间的目标平均空燃比和控制目标空燃比的气缸间空燃比控制 即使将目标平均空燃比设定为稀空燃比，也能使多个气缸中的至少一个气缸内的目标空燃比成为浓空燃比。 控制装置使用从将目标平均空燃比转换为稀空燃比时的第一氧量的累积值，再次切换为浓空燃比时的累积值和第二氧量的累积值 从将目标平均空燃比转换为浓空燃比时，将其再次切换为稀空燃比作为校正与空燃比有关的参数的基础，使得它们的差异变为 较小作为学习控制。

公开(公告)号：US09388755B2

公开(公告)日：2016-07-12

申请号：US14065227

申请日：2013-10-28

Applicant: Robert Bosch GmbH

Inventor： Holger Jessen ,  Wolfgang Tiebel

IPC: F02D41/00 ,  F02D41/14

CPC classification number: F02D41/0085 ,  F02D41/1408 ,  F02D41/1454 ,  F02D41/1498 ,  F02D2200/101

Abstract: A method is described for operating an internal combustion engine, having a plurality of cylinders in an homogeneous operation, in which an exhaust gas lambda value and an unsteady running of the internal combustion engine are recorded, a mixture composition being cyclically varied, at least intermittently. In a test operation, the mixture composition is cyclically varied, in a selected cylinder, about a determined lambda value, whereas meanwhile the mixture composition is held constant in the remaining cylinders. From the magnitude of a cyclical fluctuation of the unsteady running or of a variable characterizing this, one may conclude upon a trimming of the mixture composition in the selected cylinder.

Abstract translation: 描述了一种用于操作内燃机的方法，所述内燃机具有均匀操作中的多个气缸，其中记录了内燃机的排气λ值和不稳定运行，混合物组成至少间歇地循环变化 。 在试验操作中，混合物组合物在所选择的圆筒中循环变化，大约为确定的λ值，而同时混合物组成在其余圆筒中保持恒定。 从不稳定运行的循环波动的大小或表征这一点的变量的大小可以在所选择的气缸中修整混合物组成的结论。

公开(公告)号：US09200583B2

公开(公告)日：2015-12-01

申请号：US13435562

申请日：2012-03-30

Applicant: Li Jiang ,  Donghoon Lee ,  Hakan Yilmaz ,  Anna Stefanopoulou

Inventor： Li Jiang ,  Donghoon Lee ,  Hakan Yilmaz ,  Anna Stefanopoulou

IPC: F02D28/00 ,  F02D13/02 ,  F02D41/24 ,  F02D37/02 ,  F02P5/153 ,  F02D19/08 ,  F02D41/14 ,  F02D41/00 ,  F02D41/08

CPC classification number: F02D41/2438 ,  F02D13/0215 ,  F02D19/084 ,  F02D37/02 ,  F02D41/08 ,  F02D41/1406 ,  F02D41/1408 ,  F02D41/2432 ,  F02D41/2445 ,  F02D41/248 ,  F02D2041/001 ,  F02D2041/1419 ,  F02D2041/1432 ,  F02P5/153 ,  Y02T10/18 ,  Y02T10/36 ,  Y02T10/46

Abstract: Methods and systems for real-time engine control optimization are provided. A value of an engine performance variable is determined, a value of a first operating condition and a value of a second operating condition of a vehicle engine are detected, and initial values for a first engine control parameter and a second engine control parameter are determined based on the detected first operating condition and the detected second operating condition. The initial values for the first engine control parameter and the second engine control parameter are adjusted based on the determined value of the engine performance variable to cause the engine performance variable to approach a target engine performance variable. In order to cause the engine performance variable to approach the target engine performance variable, adjusting the initial value for the first engine control parameter necessitates a corresponding adjustment of the initial value for the second engine control parameter.

Abstract translation: 提供了实时发动机控制优化的方法和系统。 确定发动机性能变量的值，检测车辆发动机的第一运行状态值和第二运转状态值，并且基于第一发动机控制参数和第二发动机控制参数的初始值确定 检测到的第一操作条件和检测到的第二操作条件。 基于确定的发动机性能变量的值来调整第一发动机控制参数和第二发动机控制参数的初始值，以使发动机性能变量接近目标发动机性能变量。 为了使发动机性能变量接近目标发动机性能变量，调整第一发动机控制参数的初始值需要相应地调整第二发动机控制参数的初始值。

公开(公告)号：US20150122003A1

公开(公告)日：2015-05-07

申请号：US14521541

申请日：2014-10-23

Applicant: DENSO CORPORATION

Inventor： Kou TANAKA

IPC: F02D41/14 ,  G01M15/10

CPC classification number: F02D41/1495 ,  F02D41/1408 ,  F02D41/1454 ,  F02D41/1476 ,  F02D41/2458 ,  G01M15/102

Abstract: An abnormality diagnosis device is for an exhaust gas sensor that detects an air-fuel ratio, or a rich or lean state of exhaust gas from an internal combustion engine and that includes a sensor element having a catalyst layer. The device includes an abnormality diagnosis unit that makes a sensor abnormality diagnosis whereby to change the air-fuel ratio alternately between a rich side and a lean side and to determine whether the exhaust gas sensor is abnormal or not based on response characteristics of the exhaust gas sensor in response to the change of the air-fuel ratio. When making the sensor abnormality diagnosis, the abnormality diagnosis unit calculates the response characteristics of the exhaust gas sensor with exclusion of a sensor output plateau region, which is a region in which an output of the exhaust gas sensor is stagnant due to the catalyst layer.

Abstract translation: 异常诊断装置用于检测来自内燃机的排气的空燃比或浓或贫状态的废气传感器，其包括具有催化剂层的传感器元件。 该装置包括异常诊断单元，该异常诊断单元进行传感器异常诊断，以便在富侧和贫侧之间交替地改变空燃比，并且基于废气的响应特性来确定排气传感器是否异常 传感器响应于空燃比的变化。 当进行传感器异常诊断时，异常诊断单元排除排气传感器的输出由于催化剂层而停滞的区域的传感器输出平台区域，来计算排气传感器的响应特性。

公开(公告)号：US08924125B2

公开(公告)日：2014-12-30

申请号：US13435551

申请日：2012-03-30

Applicant: Li Jiang ,  Donghoon Lee ,  Hakan Yilmaz ,  Anna Stefanopoulou

Inventor： Li Jiang ,  Donghoon Lee ,  Hakan Yilmaz ,  Anna Stefanopoulou

IPC: F02D41/08 ,  F02D41/24 ,  F02D13/02 ,  F02D37/02 ,  F02P5/153 ,  F02D41/14 ,  F02D19/08 ,  F02D41/00

CPC classification number: F02D41/2438 ,  F02D13/0215 ,  F02D19/084 ,  F02D37/02 ,  F02D41/08 ,  F02D41/1406 ,  F02D41/1408 ,  F02D41/2432 ,  F02D41/2445 ,  F02D41/248 ,  F02D2041/001 ,  F02D2041/1419 ,  F02D2041/1432 ,  F02P5/153 ,  Y02T10/18 ,  Y02T10/36 ,  Y02T10/46

Abstract: Methods and systems for optimizing a performance of a vehicle engine are provided. The method includes determining an initial value for a first engine control parameter based on one or more detected operating conditions of the vehicle engine, determining a value of an engine performance variable, and artificially perturbing the determined value of the engine performance variable. The initial value for the first engine control parameter is then adjusted based on the perturbed engine performance variable causing the engine performance variable to approach a target engine performance variable. Operation of the vehicle engine is controlled based on the adjusted initial value for the first engine control parameter. These acts are repeated until the engine performance variable approaches the target engine performance variable.

Abstract translation: 提供了优化车辆发动机性能的方法和系统。 该方法包括基于车辆发动机的一个或多个检测到的操作条件确定第一发动机控制参数的初始值，确定发动机性能变量的值，以及人为地扰乱所确定的发动机性能变量的值。 然后，基于引起发动机性能变量的扰动发动机性能变量来接近目标发动机性能变量来调整第一发动机控制参数的初始值。 基于第一发动机控制参数的调整后的初始值来控制车辆发动机的运转。 重复这些动作，直到发动机性能变量接近目标发动机性能变量。

公开(公告)号：US08874351B2

公开(公告)日：2014-10-28

申请号：US13435535

申请日：2012-03-30

Applicant: Li Jiang ,  Donghoon Lee ,  Hakan Yilmaz ,  Anna Stefanopoulou

Inventor： Li Jiang ,  Donghoon Lee ,  Hakan Yilmaz ,  Anna Stefanopoulou

IPC: F02D41/26 ,  F02D13/02 ,  F02D37/02 ,  F02P5/153 ,  F02D41/14 ,  F02D41/00 ,  F02D41/24 ,  F02D41/08 ,  F02D19/08

CPC classification number: F02D41/2438 ,  F02D13/0215 ,  F02D19/084 ,  F02D37/02 ,  F02D41/08 ,  F02D41/1406 ,  F02D41/1408 ,  F02D41/2432 ,  F02D41/2445 ,  F02D41/248 ,  F02D2041/001 ,  F02D2041/1419 ,  F02D2041/1432 ,  F02P5/153 ,  Y02T10/18 ,  Y02T10/36 ,  Y02T10/46

Abstract: Methods and systems for engine control optimization are provided. A first and a second operating condition of a vehicle engine are detected. An initial value is identified for a first and a second engine control parameter corresponding to a combination of the detected operating conditions according to a first and a second engine map look-up table. The initial values for the engine control parameters are adjusted based on a detected engine performance variable to cause the engine performance variable to approach a target value. A first and a second sensitivity of the engine performance variable are determined in response to changes in the engine control parameters. The first engine map look-up table is adjusted when the first sensitivity is greater than a threshold, and the second engine map look-up table is adjusted when the second sensitivity is greater than a threshold.

Abstract translation: 提供了发动机控制优化的方法和系统。 检测车辆发动机的第一和第二操作状态。 针对与根据第一和第二引擎图查找表的检测到的操作条件的组合相对应的第一和第二引擎控制参数，识别初始值。 基于检测到的发动机性能变量来调整发动机控制参数的初始值，以使发动机性能变量接近目标值。 响应于发动机控制参数的变化确定发动机性能变量的第一和第二灵敏度。 当第一灵敏度大于阈值时调整第一引擎图查找表，并且当第二灵敏度大于阈值时调整第二引擎图查找表。

公开(公告)号：US20140230413A1

公开(公告)日：2014-08-21

申请号：US14263106

申请日：2014-04-28

Applicant: Cummins Inc.

Inventor： Aleksey Yezerets ,  Timothy R. Frazier ,  Marten H. Dane ,  Samuel C. Geckler ,  Govindarajan Kothandaraman

IPC: F02D41/14

CPC classification number: F02D41/1454 ,  F01N3/035 ,  F01N3/101 ,  F01N9/002 ,  F01N11/005 ,  F01N11/007 ,  F01N2550/04 ,  F01N2560/025 ,  F01N2900/0416 ,  F01N2900/1602 ,  F01N2900/1606 ,  F02D41/029 ,  F02D41/1408 ,  F02D41/1441 ,  F02D41/146 ,  F02D2200/0802 ,  F02D2200/0812 ,  Y02T10/22 ,  Y02T10/24 ,  Y02T10/47

Abstract: A system includes an internal combustion ignition engine with an exhaust gas flow, a particulate filter in the exhaust gas flow, a NOx reduction catalyst in the exhaust gas flow downstream of the particulate filter, a first oxygen sensor coupled to the exhaust gas flow downstream of the NOx reduction catalyst, and a second oxygen sensor coupled to the exhaust gas flow between the particulate filter and the NOx reduction catalyst. A controller includes an exhaust conditions module that interprets a first oxygen signal from the first oxygen sensor and a second oxygen signal from the second oxygen sensor and a combustion control module that commands a high engine-out air-fuel ratio when the first oxygen signal indicates a low oxygen content and commands a low engine-out air-fuel ratio when the first oxygen signal indicates a high oxygen content.

Abstract translation: 一种系统包括具有废气流的内燃点火发动机，排气流中的微粒过滤器，在颗粒过滤器下游的废气流中的NOx还原催化剂，耦合到排气流下游的废气流的第一氧传感器 NOx还原催化剂和与颗粒过滤器和NOx还原催化剂之间的废气流耦合的第二氧传感器。 控制器包括：排气条件模块，其解释来自第一氧传感器的第一氧信号和来自第二氧传感器的第二氧信号;以及燃烧控制模块，其在第一氧信号指示时命令高发动机输出空燃比 低氧含量，并且当第一氧信号表示高氧含量时，发出低的发动机空燃比。

公开(公告)号：US20130340430A1

公开(公告)日：2013-12-26

申请号：US13527622

申请日：2012-06-20

Applicant: Eric David PETERS ,  Nicholas Eric Hansen ,  Diane Darak

Inventor： Eric David PETERS ,  Nicholas Eric Hansen ,  Diane Darak

IPC: F01L1/02 ,  F02M25/07 ,  F02B47/08 ,  F02B37/12

CPC classification number: F02M25/0779 ,  F01L9/02 ,  F02B29/0406 ,  F02B37/18 ,  F02D29/02 ,  F02D41/0077 ,  F02D41/08 ,  F02D41/1408 ,  F02D41/221 ,  F02M26/05 ,  F02M26/16 ,  F02M26/19 ,  F02M26/25 ,  F02M26/28 ,  F02M26/59 ,  Y02T10/144 ,  Y02T10/47

Abstract: Various methods and systems are provided for controlling a hydraulically actuated engine valve. In one example, a system includes a hydraulically actuated engine valve and an engine having a first hydraulic system. The system further includes a second hydraulic system, which is separate from the first hydraulic system, and where the second hydraulic system provides fluid pressure to actuate the valve.

Abstract translation: 提供了用于控制液压致动发动机气门的各种方法和系统。 在一个示例中，系统包括液压致动发动机阀和具有第一液压系统的发动机。 该系统还包括与第一液压系统分离的第二液压系统，并且其中第二液压系统提供流体压力以致动阀。

公开(公告)号：US20130047588A1

公开(公告)日：2013-02-28

申请号：US13510156

申请日：2011-08-29

Applicant: Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji

Inventor： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji

IPC: F01N3/10 ,  F01N3/035

CPC classification number: F01N3/035 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/2033 ,  F01N2610/03 ,  F02D41/025 ,  F02D41/0275 ,  F02D41/029 ,  F02D41/1408 ,  F02D41/405 ,  F02D2200/0806 ,  Y02T10/26

Abstract: An exhaust purification system of an internal combustion engine is provided with an exhaust purification catalyst which removes NOx and a post treatment device. The exhaust purification catalyst has the property of reducing NOx if making the concentration of hydrocarbons vibrate by within a predetermined range of amplitude and within a predetermined range of period and furthermore has the function of oxidizing hydrocarbons. The exhaust purification system feeds hydrocarbons to the exhaust purification catalyst and raises the temperature of the post treatment device as temperature elevation control. The exhaust purification catalyst has a high purification rate range where the NOx purification rate becomes higher than a predetermined rate. In the temperature elevation control, the total feed amount of hydrocarbons is set and the feed period of hydrocarbons is set in the high purification rate range in a region at the end at the short side of feed period of hydrocarbons.

Abstract translation: 内燃机的排气净化系统具备除去NOx的废气净化催化剂和后处理装置。 如果使烃的浓度在预定的振幅范围内并在预定的时间范围内振动，则排气净化催化剂具有还原NOx的性质，并且还具有氧化烃的功能。 排气净化系统将碳氢化合物供给到排气净化催化剂，并将后处理装置的温度升高为升温控制。 排气净化催化剂具有高净化率，其中NOx净化率高于预定的速率。 在升温控制中，设定碳氢化合物的总进料量，并且将碳氢化合物的进料周期设定在碳氢化合物进料周期末端的区域的高净化率范围。

公开(公告)号：US20120078535A1

公开(公告)日：2012-03-29

申请号：US13242108

申请日：2011-09-23

Applicant: Takashi Nakamura ,  Takeho Aisaka

Inventor： Takashi Nakamura ,  Takeho Aisaka

IPC: G06F19/00

CPC classification number: F02D41/1441 ,  F01N3/101 ,  F01N11/007 ,  F01N2550/02 ,  F01N2560/025 ,  F01N2560/14 ,  F01N2900/0408 ,  F01N2900/1624 ,  F02D41/1408 ,  Y02T10/22 ,  Y02T10/47

Abstract: An abnormality determination apparatus includes: a detecting unit repeatedly detecting a state quantity, which correlates with an operating state of an evaluation target device, at time intervals; and a determining unit determining whether there is an abnormality on the basis of multiple pieces of data about the state quantity, detected by the detecting unit and stored. The apparatus counts the number of the stored data as a total storage number after there occurs a situation that no data are stored, permits the determining unit to execute abnormality determination on the condition that the total storage number has reached a first threshold in a first trip after the situation occurs, and permits the determining unit to execute abnormality determination on the condition that the total storage number has reached a second threshold that is smaller than the first threshold in a second trip or later after the situation occurs.

Abstract translation: 异常判定装置包括：检测单元，以时间间隔反复检测与评价对象装置的动作状态相关的状态量; 以及确定单元，基于由检测单元检测并存储的关于状态量的多条数据来确定是否存在异常。 在发生没有数据存储的情况之后，该装置将存储的数据的数量作为总存储数进行计数，允许确定单元在第一次行程中总存储数已经达到第一阈值的情况下执行异常确定 在情况发生之后，并且允许确定单元在总体存储数量已经达到第二跳闸中的第二阈值的第二阈值之后或在发生该情况之后更迟的情况下执行异常确定。