公开(公告)号：US11946401B2

公开(公告)日：2024-04-02

申请号：US17938526

申请日：2022-10-06

申请人： VOLVO PENTA CORPORATION

发明人： Arlena Amiri ,  Viktor Palmqvist Berntsson ,  Jakob Heide ,  Nina Lönn

IPC分类号： F01N11/00 ,  F01N3/20

CPC分类号： F01N11/005 ,  F01N3/2066 ,  F01N2390/00 ,  F01N2550/05 ,  F01N2560/00 ,  F01N2610/02 ,  F01N2900/0601 ,  F01N2900/08 ,  F01N2900/1404 ,  F01N2900/1411

摘要： A method for predicting urea crystal build-up in an engine system when operating according to an intended drive cycle. The method includes providing data representing engine operational conditions for the internal combustion engine during the intended drive cycle, wherein the data comprises values for at least engine speed and engine torque distributed over a time period representing the intended drive cycle; determining values and time variation for at least one exhaust parameter during the time period of the intended drive cycle when the engine system is operated according to the engine operational condition data; providing a reference relation between values and time variation for the at least one exhaust parameter and an expected urea crystal build-up in the engine system when operating the engine system at different engine operational conditions, predicting urea crystal build-up in the engine system when operating according to the intended drive cycle by comparing the determined values and time variation for the at least one exhaust parameter with the reference relation.

公开(公告)号：US20190242288A1

公开(公告)日：2019-08-08

申请号：US16382990

申请日：2019-04-12

申请人： CTS Corporation

发明人： Alexander G. Sappok ,  Paul A. Ragaller ,  Leslie Bromberg ,  Andrew D. Herman

IPC分类号： F01N11/00 ,  F01N3/20 ,  H04B17/18 ,  H04W24/08 ,  B01D53/94 ,  H04B17/309 ,  G01N15/00 ,  F01N3/021 ,  G01N22/04

CPC分类号： B01D53/9422 ,  B01D53/9495 ,  B01D2255/911 ,  F01N3/021 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N2560/00 ,  F01N2560/12 ,  F01N2560/14 ,  F01N2610/148 ,  G01N15/00 ,  G01N22/04 ,  H04B17/18 ,  H04B17/309 ,  H04W24/08 ,  Y02T10/24

摘要： A radio frequency system and method for monitoring an engine-out exhaust emission constituent. The system comprises a housing containing the emission constituent, one or more radio frequency sensors extending into the housing and transmitting and receiving radio frequency signals, and a control unit for controlling the radio frequency signals and monitoring changes in the emission constituent based on changes in one or more parameters of the radio frequency signals. In one embodiment, the control unit measures a rate of change in one or more of the parameters of the radio frequency signals for monitoring a rate of change of the emission constituent including for example the emission rate, accumulation rate, and/or depletion rate of the emission constituent.

公开(公告)号：US09677488B2

公开(公告)日：2017-06-13

申请号：US14390061

申请日：2012-04-10

申请人： Henrik Nilsson

发明人： Henrik Nilsson

IPC分类号： F01N3/00 ,  F02D41/02 ,  F01N3/20 ,  F01N11/00

CPC分类号： F02D41/0235 ,  F01N3/2066 ,  F01N11/00 ,  F01N11/007 ,  F01N2430/08 ,  F01N2550/02 ,  F01N2560/00 ,  F01N2560/026 ,  F01N2900/04 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： A self-diagnosing method for diagnosing a selective catalytic reduction (SCR) system of a vehicle that includes an internal combustion engine. An SCR system is arranged downstream of the engine, and the SCR system includes at least one exhaust gas sensor that is sensitive to nitrogen oxides (NOx) gas. The method includes a first diagnosing sequence (S1) of ensuring that the vehicle is in a stationary state, controlling the engine to operate in a high NOx output engine operating state and in a low NOx output engine operating state, registering an output signal of the at least one exhaust gas sensor when the engine operates in each of the high NOx output engine operating state and low NOx output engine operating state, and diagnosing NOx measurement performance of the at least one exhaust gas sensor on the basis of the registered sensor output.

公开(公告)号：US20160047298A1

公开(公告)日：2016-02-18

申请号：US14779663

申请日：2014-03-20

申请人： KASI TECHNOLOGIES AB

发明人： Isak LÖFGREN

IPC分类号： F02B37/14 ,  F02B39/04 ,  F02B39/10

CPC分类号： F02B37/14 ,  F01N3/20 ,  F01N3/2006 ,  F01N11/002 ,  F01N2560/00 ,  F01N2560/02 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1411 ,  F02B37/105 ,  F02B37/127 ,  F02B37/18 ,  F02B37/24 ,  F02B39/04 ,  F02B39/10 ,  F02B39/12 ,  F02B2037/122 ,  Y02T10/144 ,  Y02T10/26

摘要： A supercharging system includes a charging device having a turbine and a compressor, the compressor having a high speed shaft; a planetary gear set coupled to the high speed shaft and an electric motor, or generator, via a low speed drive shaft; a clutch unit; a power transmission for connecting a crank shaft of the combustion engine to the drive shaft via the clutch unit; at least one sensor to measure at least one physical parameter of the exhaust gases inside, or after having passed, an exhaust gas catalyzer of the internal combustion engine, the at least one sensor being configured to provide an output signal representing a measured value of the at least one physical parameter; and a system control unit to receive the output signal and to control the speed or effect of the electric motor, or generator, based on the output signal. A method is also disclosed.

摘要翻译： 增压系统包括具有涡轮机和压缩机的充气装置，压缩机具有高速轴; 通过低速驱动轴联接到高速轴的行星齿轮组和电动机或发电机; 离合器单元; 用于经由所述离合器单元将所述内燃机的曲轴连接到所述驱动轴的动力传递装置; 至少一个传感器，用于测量内部的排气的至少一个物理参数，或者在经过内燃机的排气催化器之后，所述至少一个传感器被配置为提供表示所述内燃机的测量值的输出信号 至少一个物理参数; 以及系统控制单元，其基于输出信号接收输出信号并控制电动机或发电机的速度或效果。 还公开了一种方法。

公开(公告)号：US09151205B2

公开(公告)日：2015-10-06

申请号：US14182039

申请日：2014-02-17

申请人： Indiana University Research & Technology Corporation

发明人： Ragibul Huq ,  Sohel Anwar

IPC分类号： F01N11/00 ,  G01N15/08

CPC分类号： F01N11/00 ,  F01N2560/00 ,  F01N2900/1606 ,  G01N15/08 ,  G01N2015/084 ,  G01N2015/0853 ,  Y02T10/47

摘要： Methods and apparatus for detecting the filtering state of a filter, such as a particulate filter. Some embodiments include one or more capacitive sensors that provide a signal corresponding to the filtered state of the filter with a change in measured capacitance. A novel ECT based sensing technique for soot load estimation in a diesel particulate filter is presented. The sensing technology is based on principle that deposited soot thickness inside DPF causes a variation in the dielectric constant which has a direct impact on the capacitance of ECT system and its output voltage. The sensor can be built into the DPF outer shell as indicated in the design. The simulation results demonstrate that there is a direct relationship between the amount of soot load in the DPF and the output voltage of the ECT system which can be used to estimate the soot load.

摘要翻译： 用于检测过滤器的过滤状态的方法和装置，例如微粒过滤器。 一些实施例包括一个或多个电容传感器，其提供与滤波器的滤波状态相对应的信号，其中测量电容的变化。 提出了一种基于ECT的柴油机微粒过滤器烟灰负荷估计检测技术。 传感技术基于原理，DPF中沉积的烟灰厚度导致介电常数的变化，其直接影响ECT系统的电容及其输出电压。 传感器可以内置在DPF外壳中，如设计中所示。 模拟结果表明，DPF中的烟灰负荷量与可用于估算烟灰负荷的ECT系统的输出电压之间存在直接的关系。

公开(公告)号：US20150177203A1

公开(公告)日：2015-06-25

申请号：US14406624

申请日：2013-06-11

申请人： AVL TEST SYSTEMS, INC.

发明人： William Martin Silvis ,  Sarah Montgomery Kingham

IPC分类号： G01N33/00 ,  G01M15/10

CPC分类号： G01N33/0006 ,  F01N11/00 ,  F01N2560/00 ,  F02D41/1444 ,  F02D41/1445 ,  F02D41/1466 ,  F02D41/1467 ,  F02D41/28 ,  F02D2041/288 ,  F02D2250/14 ,  G01M15/10 ,  G01M15/102 ,  G01N1/22 ,  G01N1/2252 ,  Y02T10/47

摘要： A system and method is provided for synchronizing a first and second signal of an exhaust sampling system. The first signal is generated by a first instrument and includes an exhaust flow rate component and a first instrument time stamp component. The second signal is generated by a second instrument and includes a pollutant concentration component and a second instrument time stamp component. The second instrument also generates a tertiary signal that has been influenced by the first signal and includes a second instrument time stamp component. A synchronization module determines a time relationship for synchronizing the first signal and the second signal by comparing the first flow rate component and the first instrument time stamp component of the first signal to the tertiary signal and the second instrument time stamp component of the tertiary signal. The synchronization provides accurate calculation of a pollutant mass flow rate.

摘要翻译： 提供了一种用于使排气采样系统的第一和第二信号同步的系统和方法。 第一信号由第一仪器产生并且包括排气流量分量和第一仪器时间戳分量。 第二信号由第二仪器产生，并且包括污染物浓度分量和第二仪器时间戳分量。 第二仪器还产生受第一信号影响的第三信号，并包括第二仪器时间戳分量。 同步模块通过将第一信号的第一流量分量和第一仪器时间戳分量与第三信号的第三信号和第二仪器时间戳分量进行比较来确定用于同步第一信号和第二信号的时间关系。 同步提供了污染物质量流量的精确计算。

公开(公告)号：US08887687B2

公开(公告)日：2014-11-18

申请号：US13469658

申请日：2012-05-11

申请人： Kenneth Upton ,  John Burdy

发明人： Kenneth Upton ,  John Burdy

IPC分类号： F02B77/00 ,  F01N13/14 ,  F02B77/11 ,  B60R13/08

CPC分类号： F01N13/148 ,  B60R13/0869 ,  F01N13/14 ,  F01N2260/20 ,  F01N2560/00 ,  F01N2560/02 ,  F02B77/11 ,  Y10T29/49826

摘要： A heat shield assembly includes shroud or housing fabricated from a heat shielding material having at least one pair of spring arms extending from side walls of the shroud for engaging a member to which the heat shield assembly is to be attached, and one or more retention tabs projecting into a longitudinal channel in position to limit longitudinal movement of the assembly relative to the member when the member is attached to the spring arms.

摘要翻译： 隔热罩组件包括由隔热材料制成的护罩或壳体，其具有从护罩的侧壁延伸的至少一对弹簧臂，用于接合防护罩组件将附接到的构件，以及一个或多个保持突片 当构件附接到弹簧臂时，突出到纵向通道中以限制组件相对于构件的纵向移动。

公开(公告)号：US07784271B2

公开(公告)日：2010-08-31

申请号：US11790535

申请日：2007-04-26

申请人： Kiyoshi Saito ,  Eisaku Gosyo ,  Hiroaki Nishino

发明人： Kiyoshi Saito ,  Eisaku Gosyo ,  Hiroaki Nishino

IPC分类号： F02B27/04 ,  F01N3/00

CPC分类号： F01N11/007 ,  F01N3/22 ,  F01N2550/02 ,  F01N2560/00 ,  F01N2560/02 ,  F01N2560/14 ,  F02D41/1441 ,  F02D41/1455 ,  F02D2041/1433 ,  F02D2200/0816 ,  Y02T10/47

摘要： Deterioration of a catalyst provided in an exhaust system of the engine is determined. Air-fuel ratio sensors are provided in the upstream side and the downstream side of the catalyst. Air-fuel ratio is changed. Based on the sensor outputs in the upstream die and the downstream side of the catalyst, a parameter of a catalyst model representing a state of the catalyst is identified. The parameter is compared with a threshold to determine a state of the catalyst.

摘要翻译： 确定在发动机的排气系统中提供的催化剂的劣化。 在催化剂的上游侧和下游侧设置有空燃比传感器。 空燃比发生变化。 基于上游模具中的传感器输出和催化剂的下游侧，识别表示催化剂状态的催化剂模型的参数。 将参数与阈值进行比较以确定催化剂的状态。

公开(公告)号：US07677031B2

公开(公告)日：2010-03-16

申请号：US11644540

申请日：2006-12-21

申请人： Andrew A. Knitt

发明人： Andrew A. Knitt

IPC分类号： F01N3/00

CPC分类号： F01N9/002 ,  F01N3/021 ,  F01N3/025 ,  F01N11/00 ,  F01N2560/00 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  F02D41/28 ,  F02D2200/0812 ,  Y02T10/47

摘要： A particulate trap regeneration system is provided, which may include a particulate trap having a filter medium configured to remove one or more types of particulate matter from an exhaust flow of an engine and a regeneration device configured to reduce an amount of particulate matter in the particulate trap, as well as a radio frequency-based particulate loading monitoring system configured to determine an amount of particulate matter trapped by the filter medium. The particulate loading monitoring system may include at least one radio frequency probe configured to transmit radio frequency signals of predetermined magnitude and predetermined frequency toward the filter medium and at least one radio frequency probe configured to receive and measure the magnitude of received radio frequency signals that pass through the filter medium. Further, the system may be configured to transmit radio frequency signals along a length of the exhaust conduit.

摘要翻译： 提供了一种颗粒捕集器再生系统，其可以包括具有过滤介质的颗粒捕集器，所述过滤介质构造成从发动机的排气流中除去一种或多种类型的颗粒物质;以及再生装置，其被配置为减少颗粒物中的颗粒物质的量 捕集器，以及配置成确定由过滤介质捕获的颗粒物质的量的基于射频的颗粒物负载监测系统。 颗粒物负载监测系统可以包括至少一个射频探针，其被配置为向滤波器介质传输预定幅度和预定频率的射频信号;以及至少一个射频探头，被配置为接收和测量经过的接收的射频信号的幅度 通过过滤介质。 此外，该系统可以被配置为沿排气管道的长度传送射频信号。

公开(公告)号：US20100023277A1

公开(公告)日：2010-01-28

申请号：US12568220

申请日：2009-09-28

申请人： Yafeng Liu ,  Joseph William Furgerson ,  Jeffrey Ribordy ,  Dustin John Bequette ,  Kevin Everett

发明人： Yafeng Liu ,  Joseph William Furgerson ,  Jeffrey Ribordy ,  Dustin John Bequette ,  Kevin Everett

IPC分类号： G06F19/00 ,  G01L23/22

CPC分类号： G01L23/225 ,  F01N2560/00 ,  F02D35/021

摘要： An ion-based triple sensor is disclosed. The ion-based triple sensor may include an ion sensing unit, configured to measure an ionic current intensity, a pressure sensing unit, configured to measure a pressure, and a temperature sensing unit, configured to measure a temperature. The ion-based triple sensor may further include a signal processing unit coupled to the ion sensing unit, the pressure sensing unit and the temperature sensing unit. The signal processing unit may include a filtering component, configured to filter at least one of the ion, pressure and temperature measurements, and a data acquisition component, configured to sample the filtered measurements and communicate the samples to a controller.

摘要翻译： 公开了一种基于离子的三重传感器。 基于离子的三重传感器可以包括被配置为测量离子电流强度的离子感测单元，被配置为测量压力的压力感测单元和被配置成测量温度的温度感测单元。 基于离子的三重传感器还可以包括耦合到离子感测单元，压力感测单元和温度感测单元的信号处理单元。 信号处理单元可以包括被配置为过滤离子，压力和温度测量中的至少一个的过滤部件，以及数据采集部件，被配置为对经滤波的测量进行采样并将样本传送到控制器。