公开(公告)号：US09074505B2

公开(公告)日：2015-07-07

申请号：US14347570

申请日：2012-10-15

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Ryo Sase ,  Ko Takayanagi ,  Keisuke Okuda

IPC: F01N3/00 ,  F01N3/023 ,  F01N9/00 ,  F01N11/00 ,  F02D41/14 ,  F02D41/18 ,  F02D41/22 ,  F01N13/00

CPC classification number: F01N3/023 ,  F01N3/02 ,  F01N3/0231 ,  F01N3/103 ,  F01N9/002 ,  F01N9/005 ,  F01N11/00 ,  F01N13/0097 ,  F01N2250/02 ,  F01N2430/00 ,  F01N2550/04 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/08 ,  F01N2900/0412 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1602 ,  F01N2900/1606 ,  F02D41/1467 ,  F02D41/18 ,  F02D41/222 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0812 ,  Y02T10/40 ,  Y02T10/47

Abstract: A PM accumulation amount estimation unit 50 is provided with an exhaust amount computation unit 51 for computing PM exhaust amount which is discharged in an exhaust gas passage 3, and a passive regeneration amount computation unit 52 for computing a PM regeneration amount in a DPF 7, and is configured to estimate the PM accumulation amount in the DPF 7 from the difference between the PM exhaust amount computed by the exhaust amount computation unit 51 and the PM regeneration amount computed by the passive regeneration amount computation unit 52. The PM accumulation amount estimation unit 50 is further configured such that, when an abnormality is found in an airflow meter 31, the PM regeneration amount from NO2 is computed, and the PM accumulation amount in the DPF is estimated, without using the airflow amount measured by the airflow meter 31.

Abstract translation: PM累积量估计单元50设置有用于计算排气通道3中排出的PM排出量的排气量计算单元51和用于计算DPF 7中的PM再生量的被动再生量计算单元52， 并且被配置为根据由排气量计算单元51计算的PM排气量与由被动再生量计算单元52计算出的PM再生量之差来估计DPF 7中的PM累积量.PM累积量估计单元 50被配置为使得当在气流计31中发现异常时，计算出来自NO2的PM再生量，并且不使用由气流计31测量的气流量来估计DPF中的PM累积量。

公开(公告)号：US20150176453A1

公开(公告)日：2015-06-25

申请号：US14409277

申请日：2013-06-12

Applicant: YANMAR CO., LTD. ,  JAPAN SHIPS MACHINERY & EQUIPMENT ASSOCIATION

Inventor： Tsuyoshi Inoue

IPC: F01N3/20 ,  F01N9/00

CPC classification number: F01N3/206 ,  B01D53/9418 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N3/208 ,  F01N9/005 ,  F01N2560/028 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/08 ,  F01N2900/12 ,  F01N2900/1402 ,  F01N2900/1614 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1628 ,  F01N2900/1818 ,  F01N2900/1824 ,  Y02T10/24 ,  Y02T10/47

Abstract: The purpose of the present invention is to provide an exhaust purification device that is capable of adding an appropriate amount of urea solution without the need to directly measure the NOx emissions amount using an NOx measuring means. The exhaust purification device uses urea solution as a reducing agent for reducing nitrogen oxides within exhaust, and is provided with a temperature sensor, a humidity sensor, and a control device. A map is stored in the control device, and in said map the real NOx emissions amount for each rotation speed and each load of an engine occurring at a predetermined air temperature and a predetermined absolute humidity are converted using a correction formula into a reference NOx emissions amount for each rotation speed and each load of the engine while in a standard state. Using the map, the control device calculates a reference NOx emissions amount that corresponds to the rotation speed detected by a rotation speed sensor and to the load detected by a load sensor, uses the correction formula to convert the reference NOx emissions amount into the real NOx emissions amount occurring at an air temperature and an absolute humidity, and calculates a urea solution addition amount.

Abstract translation: 本发明的目的是提供一种能够添加适量尿素溶液而不需要使用NOx测量装置直接测量NOx排放量的排气净化装置。 排气净化装置使用尿素溶液作为还原剂来还原排气中的氮氧化物，并且设置有温度传感器，湿度传感器和控制装置。 映射存储在控制装置中，在该图中，使用修正公式将每个转速的实际NOx排放量和在预定空气温度和预定绝对湿度下发生的发动机的每个负荷转换为参考NOx排放 在标准状态下每个转速和发动机的每个负载的量。 使用该图，控制装置计算与由转速传感器检测的转速相对应的基准NOx排出量和负载传感器检测到的负荷，使用校正公式将基准NOx排放量转换为实际NOx 在空气温度和绝对湿度下发生排放量，并计算尿素溶液添加量。

公开(公告)号：US08959899B2

公开(公告)日：2015-02-24

申请号：US13740895

申请日：2013-01-14

Applicant: Inergy Automotive Systems Research (Societe Anonyme)

Inventor： Jean-Claude Habumuremyi ,  Frederic Peucat ,  Nicolas Duret ,  Stephane Leonard ,  Guillaume Zeller

IPC: F01N3/00 ,  F01N3/08 ,  F01N3/20

CPC classification number: F01N3/08 ,  B01D2251/2067 ,  B01D2257/404 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/1473 ,  F01N2610/1493 ,  F01N2900/0422 ,  F01N2900/08 ,  F01N2900/1808 ,  Y02T10/24

Abstract: SCR system for treating the exhaust gases of an internal combustion engine, this system comprising a line for feeding a urea solution into the exhaust gases and a pump capable both of feeding the urea solution into the exhaust gases and of purging at least one part of the line by sucking a gas therethrough by means of a suction device, this system also comprising a control unit capable of activating and/or deactivating the operation of the pump and that of the suction device in a sequential manner in the course of one and the same purge procedure.

Abstract translation: 用于处理内燃机的废气的SCR系统，该系统包括用于将尿素溶液供给到废气中的管线，以及能够将尿素溶液供给到排气中的泵，并且将至少一部分 通过抽吸装置吸入气体，该系统还包括控制单元，该控制单元能够以相同方式在一个或多个过程中以顺序的方式启动和/或停用泵的操作和/或停止抽吸装置的操作 清洗程序。

公开(公告)号：US08924132B2

公开(公告)日：2014-12-30

申请号：US13351425

申请日：2012-01-17

Applicant: Damien Bouvier ,  Tobias Pfister ,  Joerg Linke ,  Frank Kluever

Inventor： Damien Bouvier ,  Tobias Pfister ,  Joerg Linke ,  Frank Kluever

IPC: F02D41/22 ,  F01N11/00 ,  F02D41/14 ,  F01N3/02 ,  F01N9/00

CPC classification number: F01N11/002 ,  F01N3/0205 ,  F01N9/005 ,  F01N2550/05 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/08 ,  F01N2900/1602 ,  F02D41/1466 ,  F02D41/22 ,  Y02T10/40 ,  Y02T10/47

Abstract: A method for monitoring the enabling of a system which is assigned to an internal combustion engine, in which the readiness for operation of the system is dependent on an operating temperature, is characterized in that a fault in the enabling of the system is inferred (106) if operation of the system cannot be detected on expiry of a predeterminable time period after the starting of the internal combustion engine or on the recurrence of readiness for operation.

Abstract translation: 一种用于监视分配给内燃机的系统的使能的方法，其中系统的操作准备取决于工作温度，其特征在于推断系统的使能中的故障（106 ）如果在内燃机启动之后的可预定时间段到期时或在再次准备运行时，不能检测到系统的操作。

公开(公告)号：US08893478B2

公开(公告)日：2014-11-25

申请号：US13782240

申请日：2013-03-01

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Keith G. Olivier

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/02 ,  F04B49/00 ,  F01N3/023 ,  F01N9/00

CPC classification number: F01N9/002 ,  F01N3/0234 ,  F01N3/025 ,  F01N3/22 ,  F01N3/32 ,  F01N2240/14 ,  F01N2900/08 ,  F01N2900/1804 ,  Y02T10/47

Abstract: An exhaust aftertreatment system for an engine is provided that includes a burner, an air supply system and a control module. The air supply system may be in fluid communication with the burner and may include an air compressor disposed upstream from the burner. The air compressor may include a pump mechanism, a clutch assembly selectively transferring torque from the engine to the pump mechanism, and a motor selectively driving the pump mechanism. The control module may be in communication with the clutch assembly and the motor. The control module may selectively switch the air compressor between a first operating mode in which the clutch assembly transfers torque from the engine to the pump mechanism and a second operating mode in which the motor drives the pump mechanism.

Abstract translation: 提供了一种用于发动机的排气后处理系统，其包括燃烧器，空气供应系统和控制模块。 空气供应系统可以与燃烧器流体连通，并且可以包括设置在燃烧器上游的空气压缩机。 空气压缩机可以包括泵机构，选择性地将转矩从发动机传递到泵机构的离合器组件和选择性地驱动泵机构的电动机。 控制模块可以与离合器组件和电动机连通。 控制模块可以选择性地在空气压缩机之间切换离合器组件将扭矩从发动机传递到泵机构的第一操作模式和电动机驱动泵机构的第二操作模式。

公开(公告)号：US20140318883A1

公开(公告)日：2014-10-30

申请号：US14361023

申请日：2012-12-24

Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

Inventor： Shuuhei Noguchi ,  Hajime Yoshida

IPC: F01N11/00 ,  F01N3/023 ,  B60K13/04

CPC classification number: F01N11/002 ,  B01D46/0086 ,  B60K13/04 ,  E02F3/325 ,  E02F9/0866 ,  E02F9/2066 ,  E02F9/2095 ,  E02F9/267 ,  F01N3/023 ,  F01N3/0235 ,  F01N9/002 ,  F01N11/00 ,  F01N13/008 ,  F01N2240/36 ,  F01N2550/04 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2590/08 ,  F01N2900/0412 ,  F01N2900/0422 ,  F01N2900/08 ,  F01N2900/1606 ,  F02D41/0235 ,  F02D41/0245 ,  F02D41/029 ,  F02D41/1448 ,  F02D41/405 ,  F02D2041/227 ,  F02D2041/228 ,  F02D2200/0614 ,  F02D2200/0812 ,  F02D2200/101 ,  Y02T10/47

Abstract: A regeneration device that performs regeneration treatment of a particulate matter removing filter estimates a trapping amount of particulate matter trapped in the filter by two systems. Specifically, there are provided an estimating unit that estimates a first estimated trapping amount based upon a rotational speed of an engine and a fuel injection quantity and an estimating unit that estimates a second estimated trapping amount based upon a differential pressure across the particulate matter removing filter. The regeneration device determines whether or not the regeneration treatment is executed based upon whether or not at least one of the two estimated trapping amount is equal to or more than a preset trapping amount threshold value. Further, the regeneration device determines that there is a malfunction in the regeneration device in a case where the second estimated trapping amount is larger than the first estimated trapping amount.

Abstract translation: 执行颗粒物去除过滤器的再生处理的再生装置通过两个系统估计捕获在过滤器中的颗粒物质的捕获量。 具体地，提供了一种估计单元，其基于发动机的转速和燃料喷射量来估计第一估计的捕获量，以及估计单元，其基于跨过颗粒物质去除过滤器的差压来估计第二估计捕集量 。 再生装置基于两个估计的捕获量中的至少一个是否等于或大于预设的捕获量阈值来确定是否执行再生处理。 此外，在第二估计捕获量大于第一估计捕获量的情况下，再生装置确定再生装置中存在故障。

公开(公告)号：US08857158B2

公开(公告)日：2014-10-14

申请号：US13512609

申请日：2010-06-11

Applicant: Tomotsugu Masuda ,  Ko Takayanagi ,  Keisuke Okuda ,  Kazuki Nishizawa

Inventor： Tomotsugu Masuda ,  Ko Takayanagi ,  Keisuke Okuda ,  Kazuki Nishizawa

IPC: F01N3/00 ,  F01N3/023 ,  F01N3/035 ,  F02B29/04 ,  F02D41/02 ,  F02D41/00 ,  F02D41/40 ,  F02D9/04 ,  F02M25/07

CPC classification number: F01N3/035 ,  F01N3/0235 ,  F01N3/0253 ,  F01N9/002 ,  F01N13/009 ,  F01N2240/36 ,  F01N2430/08 ,  F01N2560/06 ,  F01N2900/08 ,  F01N2900/1404 ,  F02B29/0406 ,  F02D9/04 ,  F02D41/0002 ,  F02D41/0235 ,  F02D41/025 ,  F02D41/029 ,  F02D41/405 ,  F02D2041/0022 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/10 ,  F02M26/23 ,  Y02T10/42 ,  Y02T10/47

Abstract: In an exhaust gas treatment method for an internal combustion engine, a DPF abnormal combustion causing operation is determined to have occurred when the internal combustion engine shifts from a high rotation or high load operation region α to a low rotation, low load operation region β within a set time T1. When it is determined that a DPF abnormal combustion causing operation has occurred, abnormal combustion of PM collected in the DPF is suppressed by fully opening an intake throttle valve (44) in order to increase an exhaust gas flow so that heat is removed by sensible heat of the exhaust gas, thereby cooling a DPF device (52), and continuing a late post-injection in order to reduce an oxygen concentration of the DPF.

Abstract translation: 在内燃机的废气处理方法中，当内燃机从高转速或高负荷运转区域α向低转动，低负荷运转区域bgr移动时，判定为发生DPF异常燃烧运转的情况。 在设定的时间T1内。 当确定发生了DPF异常燃烧引起操作时，通过完全打开进气节流阀（44）来抑制DPF中收集的PM的异常燃烧，以增加排气流，使得通过显热除去热量 的废气，从而冷却DPF装置（52），并且继续后期喷射以减少DPF的氧浓度。

公开(公告)号：US20140290237A1

公开(公告)日：2014-10-02

申请号：US14351335

申请日：2012-11-19

Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

Inventor： Hajime Yoshida ,  Hajime Ishii ,  Yoshifumi Takebayashi ,  Shuuhei Noguchi ,  Hajime Kurikuma

IPC: E02F9/22 ,  F01N11/00 ,  F01N3/023 ,  F04B49/20 ,  F02D29/04

CPC classification number: E02F9/2235 ,  E02F3/325 ,  E02F9/2095 ,  E02F9/2217 ,  E02F9/2225 ,  E02F9/2228 ,  E02F9/2246 ,  E02F9/2285 ,  E02F9/2296 ,  F01N3/023 ,  F01N9/002 ,  F01N11/002 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2900/08 ,  F01N2900/1404 ,  F02D29/04 ,  F02D41/029 ,  F02D2041/026 ,  F04B1/26 ,  F04B49/06 ,  F04B49/20 ,  Y02T10/47

Abstract: A control pressure switching valve is disposed between a displacement regulator and a pressure control valve. The control pressure switching valve is switched between a control position (j), in which a load sensing control pressure (PLS) is permitted to be outputted from the pressure control valve to the displacement regulator, and a control release position (k), in which the load sensing control pressure (PLS) to be outputted to the displacement regulator is reduced to a prescribed low pressure value. When the regeneration of a filter is determined to be necessary, the controller switches the control pressure switching valve to the control release position (k). When the load sensing control pressure (PLS) is reduced to the low pressure value with the control pressure switching valve switched to the control release position (k), the displacement regulator increases a delivery displacement of a hydraulic pump, thereby increasing rotational load of an engine.

Abstract translation: 控制压力切换阀设置在位移调节器和压力控制阀之间。 控制压力切换阀在允许从压力控制阀向位移调节器输出负载感测控制压力（PLS）的控制位置（j）和控制释放位置（k）之间切换， 将输出到位移调节器的负载感测控制压力（PLS）降低到规定的低压值。 当确定过滤器的再生是必要的时，控制器将控制压力切换阀切换到控制释放位置（k）。 当控制压力切换阀切换到控制释放位置（k）时，当负载感测控制压力（PLS）降低到低压值时，位移调节器增加液压泵的输送位移，从而增加 发动机。

公开(公告)号：US08839603B2

公开(公告)日：2014-09-23

申请号：US13608849

申请日：2012-09-10

Applicant: Don McAlpine Lawrence ,  Scott Donald Cooper ,  David T. Zultowski ,  Michiel J. Van Nieuwstadt ,  Roberto Teran, Jr. ,  Emile Wheeler, III

Inventor： Don McAlpine Lawrence ,  Scott Donald Cooper ,  David T. Zultowski ,  Michiel J. Van Nieuwstadt ,  Roberto Teran, Jr. ,  Emile Wheeler, III

IPC: F01N11/00 ,  F01N9/00 ,  F01N3/08 ,  F01N3/025

CPC classification number: F01N3/0253 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/002 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/03 ,  F01N2610/10 ,  F01N2610/107 ,  F01N2610/146 ,  F01N2900/0404 ,  F01N2900/08 ,  F01N2900/12 ,  Y02T10/47

Abstract: A method of supplying fuel vapor to an exhaust aftertreatment device of a motor vehicle is provided. The method includes evaporating fuel on a voltage-biased, resistive heating element, the element set in an enclosure configured to release fuel vapor to the exhaust-aftertreatment device, and indicating that the element is degraded if a current flowing through the element is less than a threshold current. In some embodiments, the threshold current is based on the ambient temperature and/or the amount of fuel in the enclosure.

Abstract translation: 提供了向机动车辆的排气后处理装置供给燃料蒸气的方法。 该方法包括在电压偏置的电阻加热元件上蒸发燃料，所述元件设置在外壳中，其被配置为将燃料蒸气释放到排气后处理装置，并且指示如果流过元件的电流小于 阈值电流。 在一些实施例中，阈值电流基于环境温度和/或外壳中的燃料量。

公开(公告)号：US20140260190A1

公开(公告)日：2014-09-18

申请号：US13798382

申请日：2013-03-13

Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INC.

Inventor： John W. DeGeorge

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/08 ,  F01N2900/1404 ,  F01N2900/1406 ,  F02D41/005 ,  F02D41/0275 ,  F02D41/1461 ,  F02D41/30 ,  Y02T10/24 ,  Y02T10/47

Abstract: An engine exhaust treatment and fuel efficiency improvement system includes a NOx module that determines a quantity of NOx emitted from an engine. A selective catalytic reduction (SCR) efficiency module determines a SCR efficiency to reduce the determined NOx quantity below a predetermined threshold. A reagent dosing module determines a quantity of reagent required to reduce the NOx quantity below the predetermined threshold. An injection optimization module determines whether an increase in system operating efficiency may be obtained by changing an injected reagent quantity and an engine operating parameter in cooperation with each other while maintaining the NOx quantity below the threshold, the system being operable to change the reagent injection quantity and engine operating parameter to increase system efficiency.

Abstract translation: 发动机排气处理和燃料消耗改善系统包括确定从发动机排出的NOx的量的NOx模块。 选择性催化还原（SCR）效率模块确定SCR效率以将确定的NOx量减少到低于预定阈值。 试剂剂量模块确定将NOx量降低到预定阈值以下所需的试剂的量。 注射优化模块通过在将NOx量维持在阈值以下的同时改变注入试剂量和发动机工作参数来确定是否可以获得系统运行效率的提高，该系统可操作以改变试剂注入量 和发动机运行参数，以提高系统效率。