专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20160061131A1 METHOD FOR IDENTIFICATION OF A THRESHOLD-LEVEL CATALYST 有权
标题翻译：用于鉴定阈值级催化剂的方法
公开(公告)号：US20160061131A1
公开(公告)日：2016-03-03
申请号：US14476538
申请日：2014-09-03
申请人： Ford Global Technologies, LLC
发明人： Mario Anthony Santillo , Steve William Magner , Michael James Uhrich , Mrdjan J. Jankovic
IPC分类号： F02D41/02 , F01N11/00 , F01N3/20
CPC分类号： F02D41/0295 , F01N3/101 , F01N3/20 , F01N11/007 , F01N2430/06 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2900/0408 , F02D41/1441 , F02D41/1477 , F02D41/1486 , F02D2041/288 , Y02T10/22 , Y02T10/47
摘要： Systems and methods for estimating catalyst transfer function gain are disclosed. In one example, an air-fuel ratio forcing function is applied to a catalyst. Air-fuel ratios upstream and downstream of the catalyst are manipulated to determine a transfer function gain of the catalyst. The transfer function gain may be a basis for indicating the presence or absence of catalyst degradation.
摘要翻译：公开了用于估计催化剂转移函数增益的系统和方法。在一个实例中，将空燃比强制功能应用于催化剂。操纵催化剂上游和下游的空燃比以确定催化剂的转移函数增益。传递函数增益可以是指示催化剂劣化的存在或不存在的基础。

42. 发明授权

US09109527B2 Device and method for diagnosing an exhaust gas sensor 有权
标题翻译：用于诊断废气传感器的装置和方法
公开(公告)号：US09109527B2
公开(公告)日：2015-08-18
申请号：US13503507
申请日：2010-10-14
申请人： Stefan Barnikow , Frank Friedhof , Ekkehart-Peter Wagner
发明人： Stefan Barnikow , Frank Friedhof , Ekkehart-Peter Wagner
IPC分类号： G01N37/00 , F02D41/14 , G01N27/419 , F02D41/22 , F02D41/20
CPC分类号： F02D41/1495 , F02D41/1454 , F02D41/1456 , F02D41/1477 , F02D41/222 , F02D2041/2089 , F02D2041/2093 , G01N27/419
摘要： A device for diagnosing an exhaust gas sensor, in particular a linear oxygen probe, for an internal combustion engine. A diagnostic unit is configured to control a first and a second current source in a coordinated manner in order to generate a first and a second current. Each of the currents has a predefined polarity sign, and is designed to determine the first and/or second and/or third voltages applied at a first and/or second and/or third terminal when first and second currents flow and put the amounts of the voltages in relation to the coordinated currents such that line interruptions and/or short circuits can be detected at the first and/or second and/or third terminal.
摘要翻译：一种用于诊断用于内燃机的排气传感器，特别是线性氧气探测器的装置。诊断单元被配置为以协调的方式控制第一和第二电流源，以便产生第一和第二电流。每个电流具有预定义的极性符号，并且被设计成确定当第一和第二电流流动时施加在第一和/或第二和/或第三端子处的第一和/或第二和/或第三电压，并且将相对于协调电流的电压，使得可以在第一和/或第二和/或第三端子处检测线路中断和/或短路。

43. 发明授权

US07343734B2 Method for adjusting a defined oxygen concentration by means of binary lambda regulation in order to diagnose an exhaust gas catalyst 有权
标题翻译：通过二元λ调节来调节定义的氧浓度以便诊断废气催化剂的方法
公开(公告)号：US07343734B2
公开(公告)日：2008-03-18
申请号：US10510648
申请日：2004-01-15
申请人： Reza Aliakbarzadeh , Gerd Rösel , Milos Tichy
发明人： Reza Aliakbarzadeh , Gerd Rösel , Milos Tichy
IPC分类号： F01N3/00
CPC分类号： F02D41/1454 , F02D41/0295 , F02D41/1456 , F02D41/1477 , F02D41/1495 , F02D2200/0814 , F02D2200/0816
摘要： The invention relates to a method for diagnosing a regulated exhaust gas catalyst, according to which regulating the catalyst results in control cycles, catalyst diagnosis being performed at a predetermined oxygen concentration per control cycle. A fuel mixture can be adjusted fat or lean according to a specific lambda control factor. A fat or lean exhaust gas is detected, the lambda control factor being incrementally decreased when a lean exhaust gas is detected. The lambda control factor is modified by a P step following a detected change from a fat to lean exhaust gas or from a lean to a fat exhaust gas, the lambda control factor being set to a minimum value during a first loading period following a detected change from a fat exhaust gas to a lean exhaust gas while being set to a maximum value during a second loading period following a detected change from a lean exhaust gas to a fat exhaust gas. The first and the second loading period are adjusted such that the oxygen concentration reaches the predetermined oxygen concentration in each control cycle.
摘要翻译：本发明涉及一种用于诊断调节废气催化剂的方法，根据该方法调节催化剂导致控制循环，催化剂诊断以每个控制循环的预定氧浓度进行。燃料混合物可以根据特定的λ控制因子调节脂肪或瘦。检测到肥胖或贫乏的废气，当检测到贫排气时，λ控制因子逐渐减小。根据从脂肪到稀薄废气或从贫脂到排脂的检测到的变化，通过P步骤修改λ控制因子，在检测到的变化之后的第一加载周期期间将λ控制因子设置为最小值在从贫排气到脂肪排气的检测到的变化之后的第二加载期间，将其从排气排出至贫排气，同时设定为最大值。调整第一和第二装载周期，使得氧浓度在每个控制循环中达到预定的氧浓度。

44. 发明授权

US07305977B1 System for controlling regeneration of lean NOx traps 有权
标题翻译：用于控制贫NOx捕集器再生的系统
公开(公告)号：US07305977B1
公开(公告)日：2007-12-11
申请号：US11656928
申请日：2007-01-23
申请人： David J. Stroh
发明人： David J. Stroh
IPC分类号： F02D41/14
CPC分类号： F02D41/0275 , F02D41/0007 , F02D41/0052 , F02D41/1477 , F02D41/1481 , F02D41/18 , F02D2041/141 , Y02T10/144 , Y02T10/47
摘要： A control system and method for controlling torque output of an engine include an air control module that receives an actual airflow and a desired airflow and outputs an adjusted actual airflow based on the actual airflow and the desired airflow. A fuel control module receives the adjusted actual airflow and controls fuel output based on the adjusted actual airflow, a ratio (λ) of an operating air-fuel mixture to an ideal air-fuel mixture, and an operating curve (λtraj).
摘要翻译：用于控制发动机的扭矩输出的控制系统和方法包括空气控制模块，其接收实际气流和期望的气流，并基于实际气流和期望的气流输出经调节的实际气流。燃料控制模块接收经调整的实际气流并基于经调节的实际气流控制燃料输出，操作空气 - 燃料混合物与理想空气 - 燃料混合物的比率（λ）和操作曲线）。

45. 发明申请

US20060130457A1 Apparatus and method for controlling fuel injection of internal combustion engine, and internal combustion engine 有权
标题翻译：用于控制内燃机和内燃机燃油喷射的装置和方法
公开(公告)号：US20060130457A1
公开(公告)日：2006-06-22
申请号：US11299677
申请日：2005-12-13
申请人： Seiji Hirowatari , Masanao Idogawa , Masahiko Teraoka
发明人： Seiji Hirowatari , Masanao Idogawa , Masahiko Teraoka
IPC分类号： F02D41/14
CPC分类号： F02D41/1441 , F02D41/1477 , F02D41/2461
摘要： An internal combustion engine has a fuel injection valve. To cause an actual air-fuel ratio of air-fuel mixture burned in the engine to be equal to a target value, an electronic control device corrects a fuel injection amount from the fuel injection valve using a feedback correction value. The feedback correction value is changed based on the actual air-fuel ratio. The electronic control device computes, as a safeguard value, a value of the feedback correction value that causes a fuel injection time, which is an instruction sent to the fuel injection valve, to be a permissible minimum time. When the fuel injection time is less than the permissible minimum time, the electronic control device limits the lowest value of the feedback correction value to the safeguard value. As a result, the actual air-fuel ratio is prevented from being rich.
摘要翻译：内燃机具有燃料喷射阀。为了使发动机中燃烧的空气燃料混合物的实际空燃比等于目标值，电子控制装置使用反馈校正值来校正来自燃料喷射阀的燃料喷射量。反馈修正值根据实际的空燃比而变化。电子控制装置作为保护值计算将作为发送到燃料喷射阀的指令的燃料喷射时间的反馈修正值的值设为允许的最小时间。当燃料喷射时间小于允许的最小时间时，电子控制装置将反馈校正值的最低值限制为保护值。结果，防止实际空燃比浓。

46. 发明申请

US20050284130A1 Air-fuel ratio control apparatus for an internal combustion engine 有权
标题翻译：用于内燃机的空燃比控制装置
公开(公告)号：US20050284130A1
公开(公告)日：2005-12-29
申请号：US11001342
申请日：2004-12-02
申请人： Hideki Takubo , Akira Demizu
发明人： Hideki Takubo , Akira Demizu
IPC分类号： F01N3/10 , F02D41/14 , F02K9/00 , F02K9/42 , F02M51/00
CPC分类号： F02D41/1441 , F01N3/10 , F01N2430/06 , F01N2570/14 , F02D41/1477 , F02D41/1479 , F02D41/1495 , Y02A50/2344
摘要： To obtain an air-fuel ration control apparatus for an internal combustion engine capable of maintaining an NOx purification rate at a high level when a catalyst is in a deteriorated condition. The air-fuel ratio control apparatus includes: an oxygen concentration sensor for detecting an oxygen concentration at a position upstream of a catalyst; an oxygen concentration sensor for detecting an oxygen concentration at a position downstream of the catalyst; an injector drive unit for adjusting an amount of a fuel supplied to an internal combustion engine; a first air-fuel ratio control unit for controlling the injector drive unit such that the air fuel ratio at the position upstream of the catalyst matches a first target air-fuel ratio; a second air-fuel ratio control unit for setting the first target ratio such that the air fuel ratio at the position downstream of the catalyst matches a second target air-fuel ratio; and a target air-fuel ratio setting unit for setting the second target air-fuel ratio. The target air-fuel ratio setting unit sets the second target air-fuel ratio at a value on a rich side of a stoichiometric air-fuel ratio such that an NOx purification rate is a maximum in view of NOx purification rate characteristics when the catalyst is in a deteriorated condition.
摘要翻译：获得当催化剂处于劣化状态时能够将NOx净化率维持在高水平的内燃机的空燃比配给控制装置。空燃比控制装置包括：氧浓度传感器，用于检测催化剂上游位置处的氧浓度; 氧浓度传感器，用于检测催化剂下游位置的氧浓度; 喷射器驱动单元，用于调节供给内燃机的燃料量; 第一空燃比控制单元，其用于控制所述喷射器驱动单元，使得所述催化剂上游位置的空燃比与第一目标空燃比一致; 第二空燃比控制单元，用于将所述第一目标比例设定为使得所述催化剂下游的所述空燃比与第二目标空燃比匹配; 以及用于设定第二目标空燃比的目标空燃比设定单元。目标空燃比设定单元将第二目标空燃比设定为理想空燃比的浓侧的值，以使NOx净化率在催化剂为NOx时的NOx净化率特性为最大处于恶化状态。

47. 发明申请

US20050252196A1 Method for adjusting a defined oxygen concentration by means of binary lambda regulation in order to diagnose an exhaust gas catalyst 有权
标题翻译：通过二元λ调节来调节定义的氧浓度以便诊断废气催化剂的方法
公开(公告)号：US20050252196A1
公开(公告)日：2005-11-17
申请号：US10510648
申请日：2004-01-15
申请人： Reza Aliakbarzadeh , Gerd Rosel , Milos Tichy
发明人： Reza Aliakbarzadeh , Gerd Rosel , Milos Tichy
IPC分类号： F02D41/02 , F02D41/14 , F01N3/00 , F01N7/00
CPC分类号： F02D41/1454 , F02D41/0295 , F02D41/1456 , F02D41/1477 , F02D41/1495 , F02D2200/0814 , F02D2200/0816
摘要： The invention relates to a method for diagnosing a regulated exhaust gas catalyst, according to which regulating the catalyst results in control cycles, catalyst diagnosis being performed at a predetermined oxygen concentration per control cycle. A fuel mixture can be adjusted fat or lean according to a specific lambda control factor. A fat or lean exhaust gas is detected, the lambda control factor being incrementally decreased when a lean exhaust gas is detected. The lambda control factor is modified by a P step following a detected change from a fat to lean exhaust gas or from a lean to a fat exhaust gas, the lambda control factor being set to a minimum value during a first loading period following a detected change from a fat exhaust gas to a lean exhaust gas while being set to a maximum value during a second loading period following a detected change from a lean exhaust gas to a fat exhaust gas. The first and the second loading period are adjusted such that the oxygen concentration reaches the predetermined oxygen concentration in each control cycle.
摘要翻译：本发明涉及一种用于诊断调节废气催化剂的方法，根据该方法调节催化剂导致控制循环，催化剂诊断以每个控制循环的预定氧浓度进行。燃料混合物可以根据特定的λ控制因子调节脂肪或瘦。检测到肥胖或贫乏的废气，当检测到贫排气时，λ控制因子逐渐减小。根据从脂肪到稀薄废气或从贫脂到排脂的检测到的变化，通过P步骤修改λ控制因子，在检测到的变化之后的第一加载周期期间将λ控制因子设置为最小值在从贫排气到脂肪排气的检测到的变化之后的第二加载期间，将其从排气排出至贫排气，同时设定为最大值。调整第一和第二装载周期，使得氧浓度在每个控制循环中达到预定的氧浓度。

48. 发明申请

US20040186654A1 Signal correcting device 失效
标题翻译：信号校正装置
公开(公告)号：US20040186654A1
公开(公告)日：2004-09-23
申请号：US10450678
申请日：2003-06-17
发明人： Dieter Lederer , Michael Pfeil
IPC分类号： F02D041/14
CPC分类号： G05B13/021 , F02D41/1477 , F02D41/2422 , F02D41/3005
摘要： An arrangement for correcting a signal (S) is suggested which contains a signal evaluation (28), which determines a characteristic variable of the input signal (US) of a controller (26) and/or the actuating variable (fr) of the controller (26) and/or at least one determined corrective signal (ora, fra) and/or at least one of their mean values (form) and compares the characteristic variable to at least one threshold value (SC1, SC2, SC3) and, when reaching or passing through at least one threshold value (SC1, SC2, SC3), an output signal (A) is made available at the end of the determination of the corrective signal (ora, fra).
摘要翻译：提出了一种用于校正信号（S）的装置，其包括信号评估（28），其确定控制器（26）的输入信号（US）和/或控制器的致动变量（fr）的特性变量（26）和/或至少一个确定的校正信号（ora，fra）和/或其平均值（形式）中的至少一个，并将特征变量与至少一个阈值（SC1，SC2，SC3）进行比较，当到达或通过至少一个阈值（SC1，SC2，SC3）时，输出信号（A）在校正信号（ora，fra）的确定结束时可用。

49. 发明申请

US20010006062A1 Air-fuel ratio controller for an internal-combustion engine 失效
标题翻译：内燃机空燃比控制器
公开(公告)号：US20010006062A1
公开(公告)日：2001-07-05
申请号：US09735929
申请日：2000-12-14
发明人： Masayuki Wakui , Wataru Inagawa
IPC分类号： F02D041/14 , F02D041/00
CPC分类号： F02D41/1495 , F02D41/1477 , F02D41/1482 , F02D41/1483 , F02D41/2474 , F02D2041/1409 , F02D2041/1422
摘要： Even when a reaction delay time of an A/F ratio detection device changes, an A/F ratio controller prevents an A/F ratio feedback control from being disturbed. The controller is programmed to calculate an A/F ratio feedback coefficient by proportional term control and integration term control, and to set length of time for said integration term to be carried out in accordance with an operating state of the engine. It is programmed to calculate the integration term based on the set time and to set a proportional term for shifting said A/F ratio feedback coefficient. It is further programmed to detect a deviation between a first A/F ratio feedback coefficient before the integration term is carried out and a second A/F ratio feedback coefficient after the integration term is carried out and the coefficient is shifted by the proportional term set by said means for setting the proportional term. Based on the detected deviation, the length of time for the integration term to be carried out is corrected.
摘要翻译：即使当A / F比检测装置的反应延迟时间改变时，A / F比率控制器防止A / F比反馈控制被干扰。控制器被编程为通过比例项控制和积分项控制来计算A / F比反馈系数，并且根据发动机的运行状态来设定要执行的所述积分项的时间长度。它被编程为基于设定时间计算积分项，并设置用于移位所述A / F比反馈系数的比例项。还进一步编程以检测在执行积分项之前的第一A / F比反馈系数与执行积分项之后的第二A / F比反馈系数之间的偏差，并且系数偏移比例项集通过设定比例项的方法。基于检测到的偏差，校正积分项的时间长度。

50. 发明申请

US20010003919A1 Method for diagnosing an exhaust-gas recirculation system of an internal combustion engine 失效
标题翻译：用于诊断内燃机排气再循环系统的方法
公开(公告)号：US20010003919A1
公开(公告)日：2001-06-21
申请号：US09759458
申请日：2001-01-16
申请人： Robert Bosch GmbH.
发明人： Claus-Dieter Nusser , Axel Stuber , Bernd Landes , Martin Haussmann , Peter Henkelmann , Joerg Kerner , Guido Ehlers
IPC分类号： G01L005/13
CPC分类号： F02D41/0055 , F02D21/08 , F02D41/1477 , F02D41/221 , F02M26/46 , F02M26/49 , Y02T10/47
摘要： The invention is directed to a method for diagnosing an exhaust-gas recirculation system of an internal combustion engine wherein the fuel quantity, which is needed for a desired mixture composition, is computed, at least approximately, in a control apparatus, inter alia, from stored data of the EGR system. The stored data can be in the form of a through-flow characteristic line. Thereafter, the fuel quantity is corrected by a control factor in dependence upon the mixture composition. The control factor is computed and stored when the EGR system is switched on and the control factor is computed and stored when the EGR system is switched off. The difference of these control factors is then formed and compared to pregiven values. A fault signal is outputted in the event of a deviation.
摘要翻译：本发明涉及一种用于诊断内燃机的排气再循环系统的方法，其中所需混合物组合物所需的燃料量至少大约在控制装置中，特别是从 EGR系统的存储数据。存储的数据可以是直流特性线的形式。此后，根据混合物组成，通过控制因子校正燃料量。当EGR系统接通时，控制因子被计算和存储，并且当EGR系统关闭时计算和存储控制因子。然后形成这些控制因素的差异，并将其与预先设定的值进行比较。在发生偏差的情况下输出故障信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式